STMicroelectronics STEVAL-ILL029V1 User manual

September 2010 Doc ID 17476 Rev 1 1/22
UM0943
User manual
STEVAL-ILL029V1 front panel demonstration board
based on the STLED325
Introduction
This user manual explains the operation of a front panel demonstration board based on the
advanced LED controller driver STLED325 and the STM8S207K6 8-bit microcontroller as
the I2C master. The objective of this demonstration board is to show the features of the LED
controller driver STLED325, such as key scanning, RTC, IR decoding, standby
management, etc., for the market segment of DVD players, DVD recorders, set-top boxes,
washing machines and more, while keeping system costs as low as possible.
The system can be operated using the various front panel keys provided, as well as by
remote control. System I/O is handled completely by the STLED325 with minimal load on
the host processor.
Figure 1. STLED325 front panel demo
The salient features of the system are:
■4-digit, 7-segment (and decimal point) LED display
■8 discrete LEDs
■8 front panel keys for channel and brightness up/down, ok, menu, and standby
■A bicolor power/standby LED
■An interrupt LED (blinks with the interrupt)
■A potentiometer for adjusting display brightness
■Demonstration mode
■Multi format remote control operation (only RC5 currently supported, but easily
extendable for various other formats.
■Embedded in-circuit programming using a SWIM interface for the STM8S207K6
Refer to datasheet STM8S207K6; Performance line, 24 MHz. 8-bit MCU, up to 128 Kbytes
Flash, integrated EEPROM,10-bit ADC, timers, 2 UARTs, SPI, I²C, CAN.
www.st.com
www.BDTIC.com/ST

Contents UM0943
2/22 Doc ID 17476 Rev 1
Contents
1 Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Power supply unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 7-segment (+decimal point) and discrete LED display . . . . . . . . . . . . . . . . 6
1.3 Front panel keys/wake-up key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4 DIP switch/external interface connector . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.5 IR sensor connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.6 Interrupt LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Package contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Powering on the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4 Startup display sequence/default setting of the system . . . . . . . . . . . . . . . 8
3 System features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 Brightness adjustment through potentiometer . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Channel number/brightness level display mode . . . . . . . . . . . . . . . . . . . . . 9
3.3 RTC operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3.1 Display time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3.2 Display date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3.3 Set time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3.4 Set date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3.5 Set alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3.6 Alarm condition display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.4 Demonstration mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.5 Remote control operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.6 Standby mode/hot keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Appendix A STEVAL-ILL029V1 schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Appendix B Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
www.BDTIC.com/ST

UM0943 List of figures
Doc ID 17476 Rev 1 3/22
List of figures
Figure 1. STLED325 front panel demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. Demonstration board front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Figure 3. Demonstration board rear view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Figure 4. DC power jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 5. 7-segment LED display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 6. Discrete LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 7. External interface connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 8. Example RC5 remote . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 9. Entering into standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 10. System is in standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 11. Microcontroller section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 12. Power supply section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 13. Discrete LED and seven segment LED section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 14. STLED325 section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 15. Keyscan circuit section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 16. Connectors section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
www.BDTIC.com/ST

Hardware description UM0943
4/22 Doc ID 17476 Rev 1
1 Hardware description
Figure 2. Demonstration board front view
Figure 3. Demonstration board rear view
Major components present on the board are (the numbers in parentheses refer to the
numbers marked on the board images):
●8 front panel keys (1): CH+, CH-, BRGHT+, BRGHT-, STBY, MENU, OK, DEMO
●BRGHT_ADJ potentiometer (2)
●PWR/STBY LED (3)
●Interrupt LED (4)
●MUTE LED (5)
●External host interface connector (6)
●DIP switch (7)
●SWIM connector (8)
●IR sensor circular header (9)
●STM8S207K6 microcontroller (10)
www.BDTIC.com/ST

UM0943 Hardware description
Doc ID 17476 Rev 1 5/22
●7-segment (+dot) display (11)
●STLED325 (12)
●32.768 kHz RTC crystal (13)
●8 discrete LEDs for brightness (14)
●UART pinouts (15)
●Wake-up key: WAKE UP (16)
●DC buzzer for alarm function (17)
●Super cap for backup (18) (battery backup can be replaced by a lithium ion battery for
longer backup time)
●System reset switch (19)
●DC power jack (20)
1.1 Power supply unit
The board is equipped with a DC jack into which an external adaptor (9 V-18 V, 500 mA) can
be plugged. The board consists of a 5 V output switching regulator for higher efficiency and
a 3.3 V output linear regulator onboard to give regulated outputs, as required. The board
may also be powered up using a PC laptop adaptor. The user must ensure that the external
PSU jack is of the center positive type, although reverse polarity does not damage the
demonstration board. A bicolor “PWR/STBY” LED (D4) is shown in Figure 2. When in
normal operation the PWR/STBY LED is green and turns red when the system is in standby
condition.
Figure 4. DC power jack
www.BDTIC.com/ST

Hardware description UM0943
6/22 Doc ID 17476 Rev 1
1.2 7-segment (+decimal point) and discrete LED display
The board consists of 4 7-segment (+decimal point) display modules driven by the
STLED325. By default, the two digits on the left display the channel information and the two
digits on the right display the brightness level information.
Figure 5. 7-segment LED display
Figure 6. Discrete LEDs
1.3 Front panel keys/wake-up key
The board is provided with 8 front panel keys: CH+, CH-, BRGHT+, BRGHT-, OK, MENU,
DEMO and STBY. There is one pin designated as WAKE-UP to wake-up the system from
STANDBY.
www.BDTIC.com/ST

UM0943 Hardware description
Doc ID 17476 Rev 1 7/22
1.4 DIP switch/external interface connector
The board consists of an 8-position DIP switch (SW2). All the switches should be in the ON
position (towards circle/ON side) for the demo to work. When the device STLED325 is
required to be isolated from the onboard STM8S207K6 host and controlled through an
external I2C host, all the switches should be moved to the OFF position. Then, the
STLED325 control pins can be accessed through the external interface connector (J3). A
detailed description of the external interface connector is provided on the bottom silkscreen
of the board and also listed below for reference.
Figure 7. External interface connector
1.5 IR sensor connector
A 38 kHz IR sensor is mounted at J4 for IR control and supports RC5 protocol.
1.6 Interrupt LED
There is a blue interrupt LED (D21 : INTR) which blinks whenever an interrupt is asserted
from the device which may be due to a front panel key press, remote control key press, RTC
alarm, wake-up from standby, etc.
www.BDTIC.com/ST

Getting started UM0943
8/22 Doc ID 17476 Rev 1
2 Getting started
2.1 Package contents
The STLED325 front panel demonstration board package includes:
●Demonstration board (STEVAL-ILL029V1)
●User manual (UM0943)
●Schematic
●Gerber files
2.2 System requirements
The system operates in standalone mode by powering externally through an external
adaptor (9 V-18 V, 500 mA). The board can also be powered up using a laptop adaptor.
2.3 Powering on the system
As soon as the DC power supply is plugged in, the system is up and running. The
PWR/STBY LED (D4) is green with the MUTE LED (D3) turned off.
2.4 Startup display sequence/default setting of the system
On startup the system displays a rotating text welcome message “STLED325” on the 7-
segment display. Then, “c h b r” is displayed for about 2 seconds, after which the system
displays the channel number and brightness level information. When the board is powered
on for the first time, the following default settings are programmed:
●Channel number: 00
●Brightness information: 01 (01/16)
Subsequently, every time the board is powered on, it retains the last configured data and
displays the same on startup. The STM8S207K6 internal EEPROM is used to store the user
data (channel number and brightness information), and this feature is not available if an
external host is used.
www.BDTIC.com/ST

UM0943 System features
Doc ID 17476 Rev 1 9/22
3 System features
3.1 Brightness adjustment through potentiometer
The system is also provided with a potentiometer “BRGHT_ADJ” (R5) which can be used to
vary the brightness of the LEDs by setting the output current. The brightness increases
when the potentiometer is rotated clockwise and decreases with an anti-clockwise rotation.
3.2 Channel number/brightness level display mode
In this mode the system displays the channel number (on the far left, two 7-segment display
modules) and brightness level (on the far right, two displays). Channel number and
brightness can be increased/decreased using the front panel keys provided on the board
(CH+, CH-, BRGHT+, BRGHT-). Similar operations can be performed using remote control
keys, as explained in Section 3.5.
The maximum and minimum limits for channel numbers are 99 and 00, while the maximum
and minimum values for brightness level are 16 and 1 (16/16, 1/16).
The brightness level is also shown by the number of discrete LEDs lit up. (1 LED each for 2
levels).
3.3 RTC operation
The STLED325 also features a built-in RTC. The MENU key on the front panel is provided to
select RTC set/view options. Various front panel keys can be used to operate the real time
clock.
Press MENU to enter into and navigate through menu options. Press MENU once - “RTC” is
displayed. Now press OK to enter into RTC options. Now using the MENU key the user can
navigate through “TIME” (view time), “DATE” (view date), “SETT” (set time), “SETD” (set
date), and “SETA” (set alarm).
3.3.1 Display time
Press MENU to go to “RTC” and then OK. “TIME” is displayed and press OK again to go to
view time. “HH.MM” is displayed for a second to signify the time display in hours-minutes
format, followed by current RTC time display with hours and minutes separated by a “.”.
Press OK again to exit to the channel-brightness display.
3.3.2 Display date
Press MENU and then OK. Use the MENU key again to reach “DATE” and press the OK key.
“DD.MM” is displayed for a second to signify date display in date-month format after which
the current RTC date is displayed. Date and month data are separated by a “.”. Press OK
again to exit to the channel-brightness display.
3.3.3 Set time
Press MENU and then OK. Use MENU key to go to “SETT” and press OK. The system
prompts the user to enter time in “Hours-Minutes” format. Use the front panel keys BRGHT+
www.BDTIC.com/ST

System features UM0943
10/22 Doc ID 17476 Rev 1
and BRGHT- to increase and decrease the value and CH- and CH+ to move left/right. The
seconds field is taken as 0.
After adjusting the time, press OK. The time is set and the system returns to channel-
brightness display.
3.3.4 Set date
Press MENU and then OK. Press MENU again multiple times to go to “SETD”. Now press
OK. The system prompts to enter date in “Date-Month” format. Use front panel keys Bright+
and Bright- to increase and decrease the value and CH- and CH+ to move left and right.
After adjusting the date press OK again. Now the system prompts to enter year (two digits
“e.g. 10 for 2010” and week day (1- Monday, 2 - Tuesday, etc.). After entering the
information, press OK. The date is set and the system returns to channel-brightness display.
3.3.5 Set alarm
Press MENU and then OK. Press MENU again multiple times to go to “SETA”. Now press
OK. The system shows the current RTC time and prompts the user to enter Alarm time in
“Hours-Minutes” format. Use front panel keys Bright+ and Bright- to increase and decrease
the value and CH- and CH+ to move left/right. The seconds' field is taken as 0 and current
RTC date as alarm date automatically. After adjusting the value, press OK again. The alarm
is set and the system returns to channel-brightness display.
3.3.6 Alarm condition display
When the alarm alert is received from the STLED325 internal RTC, “-AL-” is displayed along
with the buzzer sound (tick-tick sound: This buzzer is driven by GPIO1 of the STLED325). In
case the system was in display RTC mode (display RTC time/ RTC date) when the alarm
condition is met, the system display remains at its previous display state (display RTC)
during the alarm while the buzzer still sounds. The alarm goes off when any interrupt is
received (FP key press/RC key press) and the system returns to channel-brightness display.
3.4 Demonstration mode
The system enters into demonstration mode by pressing the demo key on the front panel. In
this mode scrolling text with varying brightness and increasing scrolling speed is displayed
continuously.
Text displayed: “STLED325 front panel demo” followed by blinking of 325 two times (left
aligned and right aligned).
The system comes out of demo mode and returns to its “channel-brightness” display mode
when either of the front panel or RC keys is pressed or the RTC alarm condition is met.
3.5 Remote control operation
The system currently supports only RC5 protocol; however, it can be easily adapted to
implement other RC protocols. The MENU options support changing the currently used RC
protocol but is not currently implemented in the system. For more details, refer to the data
brief STLED325; Front panel demonstration board based on the STLED325 and STM8S.
www.BDTIC.com/ST

UM0943 System features
Doc ID 17476 Rev 1 11/22
The following RC operations can be done using the IR decoding feature of the STLED325:
●Device address programmed: 0x08
●Channel up (key value: 7 and key value: 45)
●Channel down (key value: 14 and key value: 44)
●Brightness increase (key value: 8)
●Brightness decrease (key value: 27)
●Demo (key value: 21)
●Standby (key value: 12)
Figure 8. Example RC5 remote
3.6 Standby mode/hot keys
The STLED325 also features standby power management to host. The system can enter
into standby mode by:
●Pressing the front panel standby key
●Remote control standby key
On entering standby mode PWR/STBY LED (D4) turns red. MUTE LED (D3) also turns ON.
“STBY” is displayed on the LED panel for about two seconds (refer to Figure 9) after which
the complete display is blanked (discrete LEDs also turned off, refer to Figure 10). If the
system was in display RTC mode (time/date display) when the standby key was pressed,
the 7-segment display does not get blanked but displays RTC during standby mode.
(discrete LEDs are off). During standby all the front panel and RC keys except the hot keys
are non-functional.
www.BDTIC.com/ST

System features UM0943
12/22 Doc ID 17476 Rev 1
Figure 9. Entering into standby
Figure 10. System is in standby
The system can exit standby mode in any of the following ways:
●Wake-up key press
●Front panel hot key press (STBY and OK are configured as hot keys)
●Remote control hot key press (RC STANDBY key is configured as a hot key)
●RTC alarm
The system returns to “channel-brightness” display after exiting standby mode.
www.BDTIC.com/ST

UM0943 STEVAL-ILL029V1 schematics
Doc ID 17476 Rev 1 13/22
Appendix A STEVAL-ILL029V1 schematics
Figure 11. Microcontroller section
Figure 12. Power supply section
!-V
3&B,175
3%B67%<
6:,0
3'B86$57B5;
3'B86$57B7;
1567
*1'
*1'
3%B,&B6'$
3%B,&B6&/
3&B0B5(6(7
6:,0
*1'
1567 9
:$.(B83
,175B/('
9
67%<
3%B5($'< 3(B,175B/('
9
3&B0B,17
9
9
9
9
 
 
'
%,&2/25B60'/('
 
 
'
%,&2/25B60'/('
&
Q)
&
Q) 5
.
5
.
&
Q)
&
Q)
5
N
5
N
 &
X)9
 &
X)9
5
.
5
.
5
.
5
.
5

5

5

5

8
6706.7&
8
6706.7&
3' 
3%

9VV

3( 
3' 
3' 
3' 
3%

9''

1567

26&

2&6

3& 
3& 
3& 
3& 
3& 
3& 
3& 
3' 
9&$3

9'',2B

3)

9''$

966$

,&B6'$3%

,&B6&/3%

3%

3%

3' 
3' 
3' 
5
.
5
.
5
N
5
N
&
Q)
&
Q)
5
.
5
.
5
.
5
.
4
675
4
675
&
Q)
&
Q)
6:
5(6(7
6:
5(6(7
-
&21
-
&21


'
,175/('
'
,175/('
-
6:,0B&211
-
6:,0B&211




6:
:$.(B83
6:
:$.(B83
!-V
9
9
9
9 9
9
9
95(*8/$725
95(*8/$725
95(*8/$725
5

5

&
Q)
&
Q)
&
Q)
&
Q)


&
Q)
&
Q)
8
/'605
8
/'605
9,

*1'

92 
%<3$66  9,1+

'
6736/$
'
6736/$
5
N
5
N
&
Q)
&
Q)
&
Q)
&
Q)
&
X)
&
X)
&
X)
&
X)
&
X)
&
X)
8
/'6$675
8
/'6$675
9,

*1'

9RXW 
5
N
5
N
--



&
X)9
&
X)9
&
Q)
&
Q)


'
677+
'
677+
&
Q)
&
Q)


&
Q)
&
Q)
'
6736/$
'
6736/$
&
Q)
&
Q)
5
N
5
N
'
677+
'
677+
5
N
5
N
&
X)
&
X)
8
/
8
/
*1'

66B,1+

26&
287 
9&&

%227

&203

)% 
&
Q)
&
Q)
/
X+
/
X+
www.BDTIC.com/ST

STEVAL-ILL029V1 schematics UM0943
14/22 Doc ID 17476 Rev 1
Figure 13. Discrete LED and seven segment LED section
!-V
6(*.6 6(*.6 ',*
6(*.6
6(*.6
6(*.6 6(*.6 6(*.6 6(*.6
6(*.6
6(*.6
6(*.6
6(*.6
',*
6(*.6
6(*.6
6(*.6
6(*.6
6(*.6
6(*.6 ',*
6(*.6 6(*.6
6(*.6
6(*.6 6(*.6 6(*.6
6(*.6
6(*.6
',*
6(*.6
6(*.6
6(*.6 6(*.6 6(*.6 6(*.6
6(*.6
6(*.6 ',*
6(*.6 6(*.6
6(*.6
6(*.6 6(*.6
6(*.6
',6&5(7(/('
6(9(16(*0(17/('
' /(' ' /('
8
+'63
8
+'63
6(*) 
6(** 
&$

6(*&

6(*'S

6(*$ 
6(*(

6(*'

&$ 
6(*% 
' /(' ' /('
5

5

' /(' ' /('
5  5 
5  5 
8
+'63
8
+'63
6(*) 
6(** 
&$

6(*&

6(*'S

6(*$ 
6(*(

6(*'

&$ 
6(*% 
5

5

' /(' ' /('
8
+'63
8
+'63
6(*) 
6(** 
&$

6(*&

6(*'S

6(*$ 
6(*(

6(*'

&$ 
6(*% 
5  5 
5

5

' /(' ' /('
5

5

' /(' ' /('
' /(' ' /('
' /(' ' /('
8
+'63
8
+'63
6(*) 
6(** 
&$

6(*&

6(*'S

6(*$ 
6(*(

6(*'

&$ 
6(*% 
5  5 
www.BDTIC.com/ST

UM0943 STEVAL-ILL029V1 schematics
Doc ID 17476 Rev 1 15/22
Figure 14. STLED325 section
!-V
087(
,54B1
*3,2B%8==
,5B,1 ,&B6'$
,&B6&/ :$.(B83
',*
',*
',*
',*
',*
.(<
.(<
6(*.6
6(*.6
6(*.6
6(*.6 6(*.6 6(*.6 6(*.6 6(*.6
5($'<
67%<
26&B287
26&BB,1
*1'
95(*
,&B6&/
9
9
,&B6'$
9 9
26&B287 26&BB,1
9
95(*
087(
9
9 *1'
,54B1 9
.(< .(<
9
9
9
9 9
9
9
9
9 9
(,7+(52)>55@25>55@72%(02817('
5'212702817
%=
%8==(5
%=
%8==(5
5 N 5 N
5  5 
5 N 5 N
5  5 
5 N 5 N
5 N 5 N
5  5 
5 N 5 N
& S) & S)
5  5 
5
327B9$5
5
327B9$5
& ) & )
5  5 
& S) & S)
' ,54B1/(' ' ,54B1/('
' 087(/(' ' 087(/('
& Q) & Q)
5 N 5 N
4
675
4
675

& X)

& X)
& X) & X)
' %$7- ' %$7-
8
67/('
8
67/('
6(*.6  6(*.6 
6(*.6  6(*.6 
6&/

:$.(83

,5B,1

6'$

.(<

',*

6(*.6 
*3,2
*3,2
,54B1
087(
6(*.6 
6(*.6 
6(*.6 
',*

',*

',*

.(<
 9&&
 ',*

,6(7 
9%$7 
95(* 
*1' 
;,1 
;287 
67%< 
5($'< 
5 N 5 N
5  5 
5
N
5
N
5 N 5 N
5  5 
5 N 5 N
& Q) & Q)
5 N 5 N
5 5 5 5
73
*3,2
73
*3,2

5 N 5 N
< .+] < .+]
www.BDTIC.com/ST

STEVAL-ILL029V1 schematics UM0943
16/22 Doc ID 17476 Rev 1
Figure 15. Keyscan circuit section
Figure 16. Connectors section
!-V
.(<
.(<
6(*.6
.(<
.(<
6(*.6
.(<
.(<
6(*.6
.(<
.(<
6(*.6
6:
&+
6:
&+
'
%$7-
'
%$7-
6:
%5,*+7
6:
%5,*+7
6:
'(02
6:
'(02
6:
2.
6:
2.
'
%$7-
'
%$7-
'
%$7-
'
%$7-
6:
&+
6:
&+
6:
67%<
6:
67%<
6:
0(18
6:
0(18
'
%$7-
'
%$7-
6:
%5,*+7
6:
%5,*+7
!-V
3%B,&B6'$
3%B,&B6&/
3%B67%<
3%B5($'<
3&B,175
3(B,175B/('
3&B0B,17
3&B0B5(6(7
,&B6&/
67%<
5($'<
,54B1
,175B/('
0B,17
0B5(6(7
,&B6'$
,&B6'$
,&B6&/
0B,17
9
9
9
0B5(6(7
*1'
,5B,1
,&B6&/
5($'<
,175B/('
0B5(6(7
9
,&B6'$
67%<
,54B1
0B,17
9
9
&95&3/"-)045*/5&3'"$&
-
&21B,56(1625
-
&21B,56(1625




&
S)
&
S)
-
&21
-
&21




6:
6:',3
6:
6:',3
5

5


&
X)

&
X)
-
&21
-
&21





-
&21
-
&21












www.BDTIC.com/ST

UM0943 Bill of material
Doc ID 17476 Rev 1 17/22
Appendix B Bill of material
Table 1. BOM
Ref. des. Component description Package Manufacturer
Manufacturer’s
ordering code /
orderable part
number
Supplier Supplier ordering
code
U1 STM8S207K6 8-bit
microcontroller LQFP32 STMicroelectronics STM8S207K6T6C STMicroelectronics STM8S207K6T6C
U2 LED controller/driver QFN32 STMicroelectronics STLED325QTR STMicroelectronics STLED325QTR
U3(do not
mount)
LDS3985M18TR/voltage
regulator SOT23-5L STMicroelectronics LDS3985M18TR STMicroelectronics LDS3985M18TR
U4 L4978 DIP8 STMicroelectronics L4978 STMicroelectronics L4978
U5 LD1117AS33TR SOT-223 STMicroelectronics LD1117AS33TR STMicroelectronics LD1117AS33TR
D1, D5, D6, D7,
D8 BAT54J SOD323 STMicroelectronics BAT54JFILM STMicroelectronics BAT54JFILM
D9, D20 Schottky diode SMA STMicroelectronics STPS1L30A STMicroelectronics STPS1L30A
D10, D11 (do
not mount) Diode SMA STMicroelectronics STTH102 STMicroelectronics STTH102
Q1 PNP transistor SOT-23 STMicroelectronics 2STR2215 STMicroelectronics 2STR2215
Q2 NPN transistor SOT-23 STMicroelectronics 2STR1215 STMicroelectronics 2STR1215
Y1 32.768 kHz crystal Through hole Vishay/Dale XT26TTA32K768 Mouser 73-XT26T
BZ1 Piezoelectric Buzzer Through hole CUI CEP-2242 Digi-Key 102-1115-ND
D4 Bicolor PWR/STBY LED PLCC-4 Kingbright KAA-3528ESGC Farnell 1318239
D2 Interrupt LED (Blue) PLCC2 OSRAM Opto
Semiconductors Inc
LB T673-L2P1-35-0-
10-R18-Z Digi-Key 475-1387-1-ND
D3 Mute LED (Red) PLCC2 Avago Technologies
US HSMC-A101-S00J1 Digi-Key 516-2122-2-ND
www.BDTIC.com/ST

Bill of material UM0943 18/22 Doc ID 17476 Rev 1
U6, U7, U8, U9 HDSP5501 common anode 0.55 inch, 2.5
mm pitch
Avago Technologies
US Inc. HDSP-5501 Digi-Key 516-1212-5-ND
SW2 DIP-8 switch SMT C & K SDA08H0SBD Mouser 611-SDA08H0SBD
SW1, SW3,
SW4, SW5,
SW6, SW7,
SW8, SW9,
SW10, SW11
Tactile switches
6.0x6.0x7.0
mm
160gf through
hole
ALPS SKHHBWA010 Mouser 688-SKHHBW
J1, J4, J6, J7 (J6
and J7 not
mounted)
Single row bergstrip 2.54 mm pitch
through hole Protectron P9102-40-12-1 Protectron P9102-40-12-1
J3 Dual row bergstrip 2.54 mm pitch
through hole Protectron P9103-80-12-1 Protectron P9103-80-12-1
J4 (do not
mount)
4-pin female bergstrip
header (do not mount)
2.54 mm pitch
through hole Protectron P9301-36-11 Protectron P9301-36-11
J5 DC Jack connector
2.5 mm right
angle locking
type
Protectron PDCJ01-08 Protectron PDCJ01-08
L1 100 µH SMD Coil-craft DS5022P-104MLB Coil-craft DS5022P-104MLB
R1,R9,R13,R18,
R21,R28,R37,
R38
4.7 kΩSMD0805 Panasonic - ECG ERJ-6GEYJ472V or
equivalent Digi-Key P4.7KATR-ND
R2,R8,R19,R20,
R44,R45 10 kΩSMD0805 Panasonic - ECG ERJ-6GEYJ103V or equivalent Digi-Key P10KACT-ND
R3 360 ΩSMD0805 Panasonic - ECG ERJ-6GEYJ361V or
equivalent Digi-Key P360ATR-ND
R4 10 ΩSMD0805 Panasonic - ECG ERJ-6GEYJ100V or
equivalent Digi-Key P10ATR-ND
Table 1. BOM (continued)
Ref. des. Component description Package Manufacturer
Manufacturer’s
ordering code /
orderable part
number
Supplier Supplier ordering
code
www.BDTIC.com/ST

UM0943 Bill of material
Doc ID 17476 Rev 1 19/22
R16 3.3 ΩSMD0805 Panasonic - ECG ERJ-6GEYJ472V or
equivalent Digi-Key P3.3KATR-ND
R6,R11,R39,R4
0,R41,R42 1 kΩSMD0805 Panasonic - ECG ERJ-6GEYJ102V or equivalent Digi-Key P1.0KATR-ND
R7,R10,R12,
R14,R17,R24,
R29,R30,R31,
R32,R33,R34,
R35,R36 (Do not
mount: R10,
R14, R17)
0 SMD0805 Panasonic - ECG ERJ-6GEY0R00V or
equivalent Digi-Key P0.0ATR-ND or equivalent
R15 220 ΩSMD0805 Panasonic - ECG ERJ-6GEYJ221V or
equivalent Digi-Key P220ATR-ND
R22, R23 100 ΩSMD0805 Panasonic - ECG ERJ-6GEYJ101V Digi-Key P100ATR-ND
R25 20 kΩSMD0805 Panasonic - ECG ERJ-6GEYJ203V or
equivalent Digi-Key P20KATR-ND
R26 2.7 kΩSMD0805 Panasonic - ECG ERJ-6GEYJ272V or
equivalent Digi-Key P2.7KATR-ND
R27 9.1 kΩSMD0805 Panasonic - ECG ERJ-6ENF9101V or
equivalent Digi-Key P9.10KCCT-ND
R43 47 ΩSMD0805 Panasonic - ECG ERJ-P06J470V or
equivalent Digi-Key P47ADCT-ND
C1,C3,C8,C11,
C12,C13,C15,
C23,C24,C25,
C26
100 nF SMD0805 Panasonic - ECG or
equivalent
ECJ-2VB1E104K or
equivalent Digi-Key PCC1828CT-ND
C2 1 µF SMD1206 Panasonic - ECG ECJ-3YB1C105K or
equivalent Digi-Key PCC1882CT-ND
Table 1. BOM (continued)
Ref. des. Component description Package Manufacturer
Manufacturer’s
ordering code /
orderable part
number
Supplier Supplier ordering
code
www.BDTIC.com/ST

Bill of material UM0943 20/22 Doc ID 17476 Rev 1
C4,C5 25 pF SMD0805 AVX Corporation 08051A200JAT2A CAP
CERM Digi-Key 478-3735-1-ND
C7 470 nF SMD0805 Murata Electronics
North America
GRM21BF51E474ZA0
1L or equivalent Digi-Key 490-1730-1-ND
C9,C14,C16,
C18,C27 10 µF Case A Vishay/Sprague or equivalent
293D106X96R3A2TE3
or equivalent Mouser
74-
293D106X96R3A2T
E3
C10 47 µF
Leaded 50 V
47 µF 6.3x11
20 % 2.5 LS
Nichicon UPS1H470MED Mouser 647-UPS1H470MED
C17 10 nF SMD0805 Panasonic - ECG ECJ-2VB1H103K Digi-Key PCC103BNCT-ND
C19 220 nF SMD0805 Panasonic - ECG ECJ-1VB1A224K Digi-Key PCC1749CT-ND
C20, C21 220 µF/63 V Through hole Panasonic - ECG EEU-FM1E221 Digi-Key P12383-ND
C22 2.7 nF SMD0805 Panasonic - ECG ECJ-2VB1H272K Digi-Key PCC272BNCT-ND
C28 22 nF SMD0805 Panasonic - ECG ECJ-2VB1H223K Digi-Key PCC223BGCT-ND
C29 100 pF SMD0805 Panasonic - ECG ECJ-2VC1H101J Digikey PCC101CGCT-ND
C6 0.22 pF Supercap Cornell Dubilier EDLSD224H5R5C Mouser 598-
EDLSD224H5R5C
R5 Potentiometer (0 - 1 kΩ) Through hole VISHAY Spectrol 63M-T607-102 or
equivalent Farnell 9608206
IR Sensor IR sensor (38 kHz) Through hole Vishay
Semiconductors TSOP31238 Farnell 1469635
Mounting
Screws
Slotted pan head screw 4-40
thread 1” Long AEL Hardware AEL Hardware
Mounting nuts
440 hex nut natural nylon
(UL94V-2) natural nylon
(UL94V-2)
AEL Hardware AEL Hardware
Table 1. BOM (continued)
Ref. des. Component description Package Manufacturer
Manufacturer’s
ordering code /
orderable part
number
Supplier Supplier ordering
code
www.BDTIC.com/ST