Winbond W91560DN Series User manual

Preliminary W91560DN SERIES
3-MEMORY TONE/PULSE DIALER WITH
RTC AND LCD DISPLAY FUNCTIONS
Publication Release Date: May 1997
- 1- Revision A2
GENERAL DESCRIPTION
The W91560DN series ICs are Si-gate CMOS ICs that provide the signals needed for either pulse or
tone dialing. They feature 3 number memories and a 12/16-digit LCD driver for displaying telephone
numbers and calling time. A real time clock is included to display the time of day. The W91560DN
series is fabricated using CMOS technology and thus provide good performance in low voltage, low
power applications.
FEATURES
•One by 32 digits for redial
•Three by 32 digits for one-touch direct repertory memory
•Uses 5 ×6 keyboard
•Pause, Pulse-to-tone (*/T) can be stored as a digit in memory
•Flash can be stored as a digit in memory when in store mode
•Minimum tone output duration: 87 mS (81 mS for W91564DNF and W91565DNF)
•Minimum intertone pause: 87 mS
•Tone/Pulse mode pin selectable
•Make/Break ratio pin selectable
•Dialing rate: 10 ppS
•Pause time: 3.6 Sec. (2.0 Sec. for W91564DNF and W91565DNF)
•Flash break time (73 mS, 100 mS, 300 mS or 600 mS) selectable by keypad
•Built-in 12 or 16-digit LCD driver (1/4 duty, 1/3 bias) selectable by mask option
•Built-in calling timer from [00:00] to [59:59]
•Memory check function
•On-chip power-on reset and clear LCD
•Uses 3.579545 MHz TV quartz crystal or ceramic resonator
•Uses 32768 Hz crystal as RTC frequency base
•Switchable 24-hour clock or 12-hour clock with p.m. mode by keypad
•0 or 9 dialing inhibition pin for PABX systems or long distance dialing lock out
•On-hook debounce: 150 mS in normal mode and 20 mS in lock mode
•Off-hook delay 300 mS in lock mode (
DP
will keep low for 300 mS while off hook except the first
off hook after power on reset that
DP
will keep high for 100 mS then go low for 200 mS)
•First key-in delay: 300 mS in lock mode
•Mixed dialing allowed
•Packaged in 64-pin plastic QFP with RTC
•The functions of the different dialers in the W91560DN series are shown in following table:

Preliminary W91560DN SERIES
- 2-
TYPE NO. LCD DIGITS LOCK HOLD PAUSE TIME
W91560DNF 16 --- Yes
W91561DLNF 16 Yes --- 3.6 Sec.
W91562DNF 12 --- Yes
W91563DLNF 12 Yes ---
W91564DNF 16 --- Yes 2.0 Sec.
W91565DNF 12 --- Yes
W91560DNH 16 Yes Yes 3.6 Sec.
W91562DNH 12 Yes Yes
Note: W91564DNF/W91565DNF is only for the French market. The pause time will not be added when in pulse-to-tone function
mode.
PIN CONFIGURATION
1
64 20
W91560DNF Series

Preliminary W91560DN SERIES
Publication Release Date: May 1997
- 3- Revision A2
PIN DESCRIPTION
SYM. PIN NO. I/O FUNCTION
Row,
Column
Inputs
18−21,
13−17 IThe keyboard inputs may be used with either the standard 5 ×6
keyboard, an inexpensive single contact (form A) keyboard or
electronic input.
A valid key entry is defined by a single row being connected to a
single column.
XT1,
XT1
22, 23 I, O A built-in inverter provides oscillation with an inexpensive
3.579545 MHz crystal or ceramic resonater.
The oscillator ceases when a keypad input is not sensed after the
chip is enabled and dialing is finished. The crystal frequency
deviation is ±0.02%.
T/P
MUTE
8
O
The T/P
MUTE
is a conventional CMOS N-channel open drain
output.
The output transistor is switched on low level during the dialing
sequence (both pulse and tone mode), one-key redial break and
flash break. Otherwise, it is switched off.
H/P
MUTE 9
(W91560DNF,
W91562DNF,
W91564DNF,
W91565DNF
only)
OThe H/P MUTE is a conventional CMOS inverter output, During
pulse dialing, one-key redial break, flash break and hold functions,
this pin will output an active high.
It remains in a low state at all other times.
LOCK 9
(W91561DLNF,
W91563DLNF
only)
IThe LOCK pin is used to prevent "0" or "9" dialing under PABX
system long distance call control. When the first key input after
reset is "0" or "9", all the key inputs, including the "0" or "9" key,
become invalid, and the chip generates no output.
The telephone is reinitialized by a reset.
The following table describes the functions of the LOCK pin:
LOCK PIN
Floating
VDD
SS
V
FUNCTION
Normal dialing
"0", "9" dialing inhibited
"0" dialing inhibited
HKS
24 IHook switch input.
HKS
= VDD or floating: On-hook state. Chip in sleeping mode,
no operation.
HKS
= VSS: Off-hook state. Chip enable for normal operation.
HKS
pin is pulled to VDD by internal resistor.

Preliminary W91560DN SERIES
- 4-
Pin Description, continued
SYM. PIN NO. I/O FUNCTION
MODE 12 IPulling the mode pin to VSS places the dialer in tone mode.
Pulling the mode pin to VDD places the dialer in pulse mode (10
ppS, M/B = 2:3).
Floating the mode pin places the dialer in pulse mode (10 ppS, M/B
= 1:2).
HFI
,
HFO 25, 10 I, O Handfree control pins. A low pulse on the
HFI
input pin toggles
the handfree control state.
Status of the handfree control is listed in the following table:
CURRENT STATE
Input HFO Dialing
High Yes
On Hook High Low No
Off Hook High Low Yes
On Hook Off Hook Low Yes
Off Hook Low On Hook Low No
Off Hook High On Hook High Yes
Low
Hook SW. HFO
NEXT STATE
HFI
HFI
HFI
HFI
pin is pulled to VDD by internal resistor.
Detailed timing diagrams are shown in Figure 4(a), 4(b).
DP
/
C6
11 OThis pin is a CMOS N-channel open drain output. The flash key will
cause
DP
to go active in either pulse mode or tone mode. In lock
mode, the
DP
keeps low for 300 mS during off-hook delay time.
The timing diagram is shown as Figure 1(a), 1(b), 1(c), 1(d).
DTMF 6OIn pulse mode, this pin remains in low state at all times.
In tone mode, it will output a dual or single tone. The detailed
timing
diagram for tone mode is shown in Figure 2(a), 2(b), 2(c), 2(d).
Specified Actual Error %
Output Frequency
+0.28
R1
R2
R3
R4
C1
C2
C3
697
770
852
941
1209
1336
1477
699
766
848
948
1216
1332
1472
-0.52
-0.47
+0.74
+0.57
-0.30
-0.34
VLCD 29 OPower supply pin for LCD driver.
A 0.1µF capacitor is connected between VLCD and VSS.

Preliminary W91560DN SERIES
Publication Release Date: May 1997
- 5- Revision A2
Pin Description, continued
SYM. PIN NO. I/O FUNCTION
CP, CN 31, 32 ICP is the voltage control capacitor positive pin.
CN is the voltage control capacitor negative pin.
A 0.1 µF capacitor is connected between these two pins.
COM1 to
COM4 33−36 OCOM1 to COM4 are the common signal output terminals for the 1/4 duty LCD.
SEG1 to
SEG32 37−64
1−4OSEG1 to SEG32 are the 16-digit segment signal outputs.
XT2,
XT2
26, 27 I, O A quartz crystal oscillator provides an RTC frequency time base
of 32.768 KHz.
VRTC1,
VRTC2 28, 30 IEither VRTC1 should be connected to a 1.5V battery and VRTC2
should be connected to a capacitor 0.1 µF, which supplies the
power source for the RTC.
VDD, VSS 5, 7 IPower input pins.

Preliminary W91560DN SERIES
- 6-
BLOCK DIAGRAM
ROW
COLUMN
DTMF
XT1 XT1
RAM
COUNTER
SYSTEM CLOCK
GENERATOR
LOCATION
LATCH
D/A ROW & COLUMN
PROGRAMMABLE
COUNTER
DATA LATCH
& DECODER
READ/WRITE
(R1 ~ R4)
(C1 ~ C5)
CONTROL
LOGIC
PULSE/
CONTROL
LOGIC
KEYBOARD
INTERFACE
CONVERTER
SEGMENT OUTPUT
DECODER
BACKPLANE SIGNAL
GENERATOR
COM2COM1 COM3 L.C.D. COM4
XT2 XT2
REAL TIME CLOCK
GENERATOR
TONE
HKS
MODE
HFI
H/P MUTE
HFO
LOCK
DP
T/P MUTE
VDD SS
V
VRTC1
VRTC2
VLCD
CP CN
FUNCTIONAL DESCRIPTION
Keyboard Operation
C1
C2
C3
C4
C5
DP
/
C6
123 EM1 HOLD1 R1
456F4 M2 HOLD2 R2
789CHK M3 APSET R3
*/T 0 # R/P RTC/HOUR SET R4
F1 F2 F3 OKR TIM/MIN Vx
•*/T: * in tone mode and P→T in pulse mode
•E: Store digit
•F1, F2, F3, F4: Flash keys
•M1−M3: One-touch memory
•R/P: Redial and pause function key
•OKR: One-key redial function

Preliminary W91560DN SERIES
Publication Release Date: May 1997
- 7- Revision A2
•RTC: Real time clock toggle key
•TIM: a. Display last calling time
b. Start and/or stop counting up calling time
•HOUR and MIN: Adjusting time setting keys
•HOLD1, HOLD2: Hold function keys
•APSET: Toggle to set RTC display mode
•SET: Toggle the RTC set function on/off.
•CHK: a. Check dialing number
b. Check dialing time
c. Memory check
Notes: D1, ..., Dn, D1', ..., Dn': 0, ..., 9, ∗/T, #
Mn: Direct memory location M1, ..., M3
Normal Dialing
OFF HOOK (or ON HOOK &
HFI
¡õ
), D1 ,D2 , ..., Dn
1. D1, D2, ..., Dn will be dialed out.
2. Dialing length is unlimited, but redial is inhibited if length oversteps 32 digits in normal dialing.
Redialing
1. OFF HOOK (or ON HOOK &
HFI
¡õ
), D1 ,D2 ,Check
Memory (or
Number Store ), D3 , ..., Dn , Busy,
Come ON HOOK ,OFF HOOK (or
ON HOOK &
HFI
¡õ
), R/P
a.
The R/P key can execute the redial function only after the first key-in is off-hook; otherwise, it
will invoke the pause function.
b. The contents of redial memory are D3, …, Dn.
c. Redial memory can be checked in memory check mode.
(CHK ,R/P )
d. If the redialing length oversteps 32 digits, the redialing function will be inhibited.
2. OFF HOOK (or ON HOOK &
HFI
¡õ
), D1 ,D2 , ..., Dn , Busy, OKR
a. If the dialing
of D1 to Dn is finished, pressing the OKR key causes the pulse output
pin to go low for 2.2 seconds (break time) with 0.6 seconds of pause time automatically added.
b. If the pulses of the dialed D1 to Dn have not finished, OKR will be ignored.

Preliminary W91560DN SERIES
- 8-
digits
c. The one-key redialing function timing diagram is shown in Figure 3.
3. OFF HOOK (or ON HOOK &
HFI
¡õ
), D1 ,D2 , ∗(or #), D3 , ..., Dn
, Busy, Come ON HOOK ,OFF HOOK (or ON HOOK &
HFI
¡õ
), R/P
or OFF HOOK (or ON HOOK &
HFI
¡õ
), D1 ,D2 , ∗(or #), ..., Dn ,
Busy, OKR
a. Only D1, D2 will be dialed out for W91564DNF and W91565DNF.
b. D1, D2, *(or #) , D3, ..., Dn will be dialed out for other dialer.
Number Entry
1
.OFF HOOK (or ON HOOK &
HFI
¡õ
), D1 ,D2 ,
..., Dn ,E(many times
same as one times), Mn ,ON HOOK
D1, D2, ..., Dn will be stored in memory location Mn and will be dialed out.
2
.OFF HOOK (or ON HOOK &
HFI
¡õ
), E,D1 ,D2 , ..., Dn ,E
(could be skipped), Mn ,ON HOOK
a. D1, D2, ..., Dn will be stored in memory location Mn but will not be dialed out.
b. R/P and */T keys can be stored as a digit in memory, in store
mode, R/P is the pause
function key.
c. The store mode is released after the store function is executed or when the hook switch is
depressed.
4. OFF HOOK ,E,Mn
The redial contents excluding memory dialing will be copied to memory location Mn.
5. The key-in number should not exceed 32 digits. If the number exceeds 32 digits, it will not be
stored in memory.
Repertory Dialing
One-touch direct repertory dialing.
OFF HOOK (or ON HOOK &
HFI
¡õ
), Mn or R/P ,OKR )
Access Pause

Preliminary W91560DN SERIES
Publication Release Date: May 1997
- 9- Revision A2
OFF HOOK (or ON HOOK &
HFI
¡õ
), D1 ,D2 ,R/P ,D3 , ..., Dn
, Busy,
Come ON HOOK ,OFF HOOK (or ON HOOK &
HFI
¡õ
), R/P
1. The first R/P functions as a pause key and the second as a first key-in redial key.
2. The pause function can be stored in memory.
3. The pause function is executed in normal dialing, redialing, or memory dialing.
4. The pause duration time is 3.6 Sec. (2.0 Sec. for W91564DNF and W91565DNF only)
5. The pause function timing diagram is shown in Figure 5.
Pulse- to-tone (*/T)
OFF HOOK (or ON HOOK &
HFI
¡õ
), D1 ,D2 , ..., Dn ,∗/T ,D1'
,D2' , ..., Dn'
1. If the mode switch is set to pulse mode, then the output signal will be:
D1, D2, …, Dn, Pause (3.6 sec), D1', D2', …, Dn'
(Pulse) (Tone)
2. If the mode switch is set to tone mode, then the output signal will be:
D1, D2, …, Dn, *, D1', D2', …, Dn'
(Tone) (Tone)
3. The dialer remains in tone mode after the digits have been dialed out and can be reset to pulse mode
only by going on-hook.
4. The pulse-to-tone function timing diagram is shown in Figure 6(a), 6(b).
Flash (F = F1, F2, F3, F4)
OFF HOOK (or ON HOOK &
HFI
¡õ
), F
1. The dialer will execute flash break time of 600 mS (F1), 300 mS (F2), 73 mS (F3) or 100 mS(F4)
and pause time of 1S before the next digit (except flash key) is dialed out.
2. The flash key has first priority in normal dialing but an insert flash can be stored into memory when
flash is the first digit in memory. In this condition, only one flash key can be released to the user.
a. For the digit sequence E, F1, D1, D2, D3, E, Mn, the sequence stored in Mn will be F1, D1, D2, D3.
b. For the digit sequence E, D1, F1, D2, D3, E, Mn, the sequence stored in Mn will be D1, D2, D3.
c. For the digit sequence F1, D1, D2, D3, E, Mn, the sequence stored in Mn will be D1, D2, D3.
3. The system will return to the initial state after the flash break time is finished.
4. Keyboard functions are inhibited when flash break is being executed.
5. The flash timing daigram is shown in Figure 7.
HOLD Key

Preliminary W91560DN SERIES
- 10 -
OFF HOOK (or ON HOOK &
HFI
¡õ
), HOLD1 (or HOLD2 )
1.The hold function is toggled on and off by the HOLD1 or HOLD2 key. When the hold function is
toggled on, the hold mark (dot of digit_4) will be lit and all key-ins (except hold keys and icon keys)
will be ignored.
2. The following examples show the hold function being toggled on and off:
a. OFF HOOK ,HOLD1 (or HOLD2 ), HOLD1 (or HOLD2 )
b. OFF HOOK ,HOLD1 (or HOLD2 ),
HFI
¡õ
c. OFF HOOK ,HOLD1 (or HOLD2 ), ON HOOK ,
HFI
¡õ
d. ON HOOK &
HFI
¡õ
,HOLD1 (or HOLD2 ),
HFI
¡õ
3. HOLD1 and HOLD2 have the same function in the off-hook state. The difference between HOLD1
and HOLD2 are shown as follows:
a. If OFF HOOK ,HOLD1 (or HOLD2 ), ON HOOK ,HOLD1 is entered, then
the
dialer will be off-line.
If OFF HOOK ,HOLD1 (or HOLD2 ), ON HOOK ,HOLD2 is entered, then the
dialer will be on hold.
b. If ON HOOK &
HFI
¡õ
,HOLD1 (or HOLD2 ), HOLD1 is entered, then the
dialer will be off-line.
c. If ON HOOK &
HFI
¡õ
,HOLD1 (or HOLD2 ), HOLD2 is entered, then the
dialer will be on hold.
4. The function timing diagram is shown in Figure 8(a), 8(b), 8(c).
Adjusting Time Setting
OFF HOOK (or ON HOOK &
HFI
¡õ
), SET ,HOUR ,MIN ,SET
(or ON HOOK )
1. Only HOUR and MIN keys are valid in RTC set mode.
2. Hours and minutes count forward as long as the HOUR or MIN key is pressed.
3. The on/off function of SET is tolggled, and the dialer is initialized after the SET key is toggled.
4. If the dialing sequence D1, D2, ..., Dn (including flash and pause) has not finished, SET will be
ignored.
RTC Display Mode
OFF HOOK (or ON HOOK &
HFI
¡õ
), RTC

Preliminary W91560DN SERIES
Publication Release Date: May 1997
- 11 - Revision A2
1.The real time clock display mode can be toggled on and off by the RTC key.
2. The icon display will not change when the RTC display mode is entered and set.
APSET
1. In the off-hook state, press the APSET key to toggle the RTC function to 24-hour clock mode or 12-
hour clock with p.m. mode.
2. The default mode is a 12-hour clock with p.m. mode.
Check Key
OFF HOOK (or ON HOOK &
HFI
¡õ
), CHK ,R/P (or OKR ,Mn
, ..., etc.)
The contents of redial (or memory) is displayed on the LCD when either R/P or OKR is key in.
TIM
OFF HOOK (or ON HOOK &
HFI
¡õ
), D1 ,D2 , ..., Dn (or Redialing
or Repertory dialing ), CONVERSATIO
N
1. If no key is pressed after dialing is finished, the LCD will display a timer after 6 seconds.
2. If the dialing sequence D1, D2, ..., Dn has not finished, TIM will be ignored.
3. The timer will be initialized by the flash and toggle SET key.
Mixed Dialing
1. Definition of mixed dialing:
In mixed dialing, a new sequence may be pressed after the previous sequence has been
sent out completely. The following are examples of mixed dialing:
Example 1: Normal dialing +Repertory dialing +...
Example 2: Repertory dialing +Normal dialing +Repertory dialing +...
Example 3: Redialing +Normal dialing +Repertory dialing +...
2. There is no limitation on the number of digits and sequences in mixed dialing.
3. The content of mixed dialing may be a combination of normal dialing, memory dialing, or one-key
redialing.
ABSOLUTION MAXIMUM RATINGS

Preliminary W91560DN SERIES
- 12 -
PARAMETER SYMBOL RATING UNIT
DC Supply Voltage VDD−VSS -0.3 to +7.0 V
VIL VSS −0.3
Input/Output Voltage VIH VDD +0.3 V
VOL VSS −0.3
VOH VDD +0.3
Power Dissipation PD120 mW
Operating Temperature TOPR -0.5 to +70 °C
Storage Temperature TSTG -55 to +125 °C
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability
of the device.
ELECTRICAL CHARACTERISTICS
DC CHARACTERISTICS
(VDD−VSS = 2.5V. FOSC = 3.58 MHZ, TA = 25°C, all outputs unloaded.)
PARAMETER SYM. CONDITIONS MIN. TYP. MAX. UNIT
Operating Voltage VDD -2.0 -5.5 V
Operating Current IOP Tone, Unloaded -0.5 0.7 mA
Pulse, Unloaded -0.4 0.5
Standby Current ISB
HKS
= 0,
Unloaded and no
key entry
- - 15 µA
Memory Retention Current IMR
HKS
= 1
VDD = 1.0V - - 0.5 µA
Tone Output Voltage VTO Row group
RL = 10 KΩ130 150 170 mVrms
Pre-emphasis Col/Row
VDD = 2.0 to 5.5V -2 3 dB

Preliminary W91560DN SERIES
Publication Release Date: May 1997
- 13 - Revision A2
DC Characteristics, continued
PARAMETER SYM. CONDITIONS MIN. TYP. MAX. UNIT
DTMF Distortion THD RL = 10 KΩ
VDD = 2.0 to 5.5V --30 -23 dB
DTMF Output DC Level VTDC VDD = 2.0 to 5.5V 1.0 -3.0 V
DTMF Output Sink Current ITL VTO = 0.5V 0.2 - - mA
DP
Output Sink Current IPL VPO = 0.5V 0.5 - - mA
Common Output Voltage VCH VRTC = 1.5V 4.2 4.5 4.8
V
VCL -00.3
Common Output Current ICH --20 - -
µA
ICL -20 - -
Segment Output Voltage VSH VRTC = 1.5V 4.2 4.5 4.8
V
VSL -00.3
Segment Output Current ISH --5 - -
µA
ISL -5- -
RMS Voltage VON -2.4 2.6 -
Vrms
Across a Segment VOFF - - 1.5 1.7
Average DC Offset Voltage VDC - - - 100 mV
HFI
High Voltage VHFIH -0.8 VDD -VDD V
HFI
Low Voltage VHFIL - - - 0.2 VDD V
T/P
MUTE
Output Sink
Current ITML VTMO = 0.5V 0.5 - - mA
H/P MUTE Output Drive
Current IHMH VHMO = 2.0V 0.5 - - mA
H/P MUTE Output Sink
Current IHML VHMO = 0.5V 0.5 - - mA
Keypad Input Drive Current IKD VI= 0V 4- - µA
Keypad Input Sink Current IKS VI= 2.5V 200 - - µA
Keypad Resistance RK- - - 5KΩ
Control Input Pull Up/Down
Resistor RCIP
HFI
100 - - KΩ
HKS
Input Pull High
Resistor RHK - - 500 -KΩ

Preliminary W91560DN SERIES
- 14 -
AC CHARACTERISTICS
(VDD−VSS = 2.5V , FOSC. = 3.58 MHz , TA= 25°C, all outputs unloaded.)
PARAMETER SYM. CONDITIONS MIN. TYP. MAX. UNIT
Key-in Debounce TKID - - 20 -mS
Key Release Debounce TKRD - - 20 -mS
Off-hook Delay Time TOFD - - 300 -mS
First Key-in Delay Time TFKD - - 300 -mS
On-hook Debounce Time TOHD Unlock -150 -mS
Lock -20 -
Pulse Mute Delay TMD Mode = VDD -40 -mS
Mode = Floating -33.3 -
Pre-digit-pause TPDP Mode = VDD -40 -mS
(10 ppS) Mode = Floating -33.3 -
Inter-digit Pause
(Auto Dialing) TIDP 10 ppS -800 -mS
Make/Break Ratio M:B Mode = VDD -40:60 -%
Mode = Floating -33:67 -
Tone Output Duration TTD - - 87 -
W91564DNF and
W91565DNF only -81 -mS
Inter-tone Pause TITP - - 87 -mS
F1 -600 -
Flash Break Time TFB F2 -300 -mS
F3 -73 -
F4 -100
Flash Pause Time TFP F1, F2, F3, F4 -1-S
Pause Time TPR/P -3.6 -
W91564DNF and
W91565DNF only 2.0 S
One Key Redialing Break Time TRB - - 2.2 -S
One Key Redialing Pause Time
TRP - - 0.6 -S
LCD Frame Frequency FLCD - - 32 -Hz

Preliminary W91560DN SERIES
Publication Release Date: May 1997
- 15 - Revision A2
RTC DC Characteristics
(VRTC = 1.5V ,VSS = 0V , FOSC. = 32,768 Hz , TA = 25°C, all outputs unloaded.)
PARAMETER SYM. CONDITIONS MIN. TYP. MAX. UNIT
Supply Voltage VRTC -1.2 1.5 1.8 V
Supply Current IRTC No Load -2.0 4.0 µA
OSC. Starting Time TOSC - - - 3S
OSC. Output Built-in Cap. CO Cl = 12.5 pF -25 -pF
OSC. in Trimmer Cap. CTRIM -5-35 pF
Frequency Stability ∆f/f VDD−VSS = 1.3 to 1.6V - - 1PPM
Notes :
1. Crystal parameters suggested for proper operation are Rs < 100 ohms, Lm = 96 mH, Cm = 0.02 pF, Cn = 5 pF, Cl = 18 pF, and
Fosc. = 3.579545 MHz ±0.02%
2. Crystal oscillator accuracy directly affects these times.
TIMING WAVEFORMS
T
IDP
HKS
KEY IN
DP
T/P MUTE
H/P MUTE
2
BMT
IDP T
IDP
T
KID
T
IDP
T
PDP
2
MB
TMD
4T
KRD
3
< 600mS
< 300mS
T
KID
DTMF
OSC.
Low
OSCILLATION OSCILLATION
TPDP
T
KD
Figure 1(a). Normal Dialing Timing Diagram (Pulse Mode without Lock Function)

Preliminary W91560DN SERIES
- 16 -
Timing Waveforms, continued
HKS
KEY IN
DP
T/P MUTE
H/P MUTE
T
OFD
2
B
M
T
IDP T
IDP
T
PDP
T
KID
T
IDP
T
PDP
2
M
B
T
MD
T
MD
4T
KRD
DTMF
OSC.
Low
OSCILLATION OSCILLATION
T
FKD
3
< 600mS
< 300mS
T
KID
T
KD
Figure 1(b). Normal Dialing Timing Diagram (Pulse Mode with Lock Function)
HKS
KEY IN
DP
T/P MUTE
H/P MUTE
R/P
T
KID
BMT
IDP T
IDP
TPDP
MB
TMD T
MD
DTMF
OSC.
Low
OSCILLATION
T
IDP
< 600mS
T
KRD
T
KD
Figure 1(c). Auto Dialing Timing Diagram (Pulse Mode without Lock Function)

Preliminary W91560DN SERIES
Publication Release Date: May 1997
- 17 - Revision A2
Timing Waveforms, continued
HKS
KEY IN
DP
T/P MUTE
H/P MUTE
TOFD BMT
IDP T
IDP
T
PDP
MB
T
MD
T
MD
DTMF
OSC.
Low
OSCILLATION
R/P
T
KID
T
IDP
T
FKD
< 600mS
300mS
Figure 1(d). Auto Dialing Timing Diagram (Pulse Mode with Lock Function)
HKS
KEY IN
H/P MUTE
T/P MUTE
DTMF
5T
KID
2
Low
4T
KRD
3
< 600mS
< 300mS
TTD
OSC.
DP
OSCILLATION OSCILLATION
2
TITP TITP
TITP
T
KID
High
TITP
OSCILLATION
T
KRD
T
KD
Figure 2(a). Normal Dialing Timing Diagram (Tone Mode without Lock Function)

Preliminary W91560DN SERIES
- 18 -
Timing Waveforms, continued
HKS
KEY IN
H/P MUTE
T/P MUTE
DTMF
5T
KID
2
Low
4T
KRD
3
< 600mS
< 300mS
TTD
OSC.
T
OFD
DP
OSCILLATION OSCILLATION
T
FKD
2
TITP TITP TITP
T
KD
Figure 2(b). Normal Dialing Timing Diagram (Tone Mode with Lock Function)
HKS
KEY IN
H/P MUTE
T/P MUTE
DTMF
Low
R/P T
KRD
< 600mS
OSC.
DP
OSCILLATION
TTD TITP TITP
T
KID
High
T
KD
TOHD
Figure 2(c). Auto Dialing Timing Diagram (Tone Mode without Lock Function)

Preliminary W91560DN SERIES
Publication Release Date: May 1997
- 19 - Revision A2
Timing Waveforms, continued
HKS
KEY IN
H/P MUTE
T/P MUTE
DTMF
R/P T
KRD
< 600mS
Low
300mS
TTD
OSC.
T
OFD
DP
OSCILLATION
TFKD
TITP TITP
TKD
TOHD
Figure 2(d). Auto Dialing Timing Diagram (Tone Mode with Lock Function)
HKS
KEY IN
DP
T/P MUTE
H/P MUTE
DTMF
OSC.
TOFD
BM
T
PDP
Low
OSCILLATION
OKR
TMD
T
FKD
< 600mS
300mS OKR
KID
T
BM
TPDP
TIDP
TRB TRP
TIDP
Figure 3. One-key Redial Timing Diagram

Preliminary W91560DN SERIES
- 20 -
Timing Waveforms, continued
T/P MUTE
HKS
HFO
OSC.
DP
HFI
H/P MUTE
High
OSC.
OFD
T
FKD
T
OSC. OSC.
OHD
TOHD T
Low
Figure 4(a). Handfree Timing Diagram (with Lock Function)
T/P MUTE
HKS
HFO
OSC.
DP
HFI
H/P MUTE
High
OHD
T
OHD
T
High
Low
Figure 4(b). Handfree Timing Diagram (without Lock Function)