Cypress CY62167DV18 User manual

16-Mbit (1M x 16) Static RAM
CY62167DV18 MoBL®
Cypress Semiconductor Corporation • 198 Champion Court • San Jose,CA 95134-1709 • 408-943-2600
Document #: 38-05326 Rev. *C Revised April 25, 2007
Features
• Very high speed: 55 ns
• Wide voltage range: 1.65V–1.95V
• Ultra low active power
— Typical active current: 1.5 mA @ f = 1 MHz
— Typical active current: 15 mA @ f = fmax
• Ultra low standby power
• Easy memory expansion with CE1, CE2, and OE features
• Automatic power down when deselected
• CMOS for optimum speed and power
• Available in Pb-free 48-ball VFBGA package
Functional Description[1]
The CY62167DV18 is a high performance CMOS static RAM
organized as 1M words by 16 bits. This device features
advanced circuit design to provide ultra low active current.
This is ideal for providing More Battery Life™(MoBL®) in
portable applications such as cellular telephones. The device
also has an automatic power down feature that significantly
reduces power consumption by 99% when addresses are not
toggling. Placing the device into standby mode reduces power
consumption by more than 99% when deselected (CE1HIGH
or CE2 LOW or both BHE and BLE are HIGH). The input and
output pins (IO0through IO15) are placed in a high impedance
state when:
• Deselected (CE1 HIGH or CE2LOW)
• Outputs are disabled (OE HIGH)
• Both Byte High Enable (BHE) and Byte Low Enable (BLE)
are disabled (BHE, BLE HIGH)
• Write operation is active (CE1LOW, CE2HIGH and WE
LOW)
To write to the device, take Chip Enables (CE1 LOW and CE2
HIGH) and Write Enable (WE) input LOW. If BLE is LOW, then
data from IO pins (IO0through IO7) is written into the location
specified on the address pins (A0through A19). If BHE is LOW
then data from IO pins (IO8through IO15) is written into the
location specified on the address pins (A0through A19).
To read from the device, take Chip Enables (CE1 LOW and
CE2HIGH) and OE LOW while forcing the WE HIGH. If BLE
is LOW, then data from the memory location specified by the
address pins appear on IO0to IO7. If BHE is LOW, then data
from memory appears on IO8to IO15. See the “Truth Table” on
page 9 for a complete description of read and write modes.
Note
1. For best practice recommendations, refer to the Cypress application note “System Design Guidelines” at http://www.cypress.com.
Logic Block Diagram
1M × 16
RAM Array IO0–IO7
ROW DECODER
A 8
A 7
A 6
A 5
A 2
COLUMN DECODER
A11
A12 A13 A14 A15
SENSE AMPS
DATA IN DRIVERS
OE
A 4
A 3IO8–IO15
WE
BLE
BHE
A16
A 0
A 1
A17
A 9
A18
A10
CE2
CE1
A19
BYTE
PowerDown
Circuit BHE
BLE
CE2
CE1
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CY62167DV18 MoBL®
Document #: 38-05326 Rev. *C Page 2 of 11
Product Portfolio
Product VCC Range (V) Speed
(ns)
Power Dissipation
Operating ICC (mA) Standby ISB2 (µA)
f = 1MHz f = fmax
Min Typ[2] Max Typ[2] Max Typ[2] Max Typ[2] Max
CY62167DV18LL 1.65 1.8 1.95 55 1.5 5 15 30 2.5 20
Pin Configuration [3]
Notes
2. Typical values are included for reference only and are not guaranteed or tested. Typical values are measured at VCC = VCC(typ), TA= 25°C.
3. DNU pins must be left floating or tied to VSS to ensure proper operation.
WE
A11 A10
A6
A0
A3CE1
IO10
IO8
IO9
A4
A5
IO11
IO13
IO12
IO14
IO15
VSS
A9
A8
OE
A7
IO0
BHE
CE2
A17
A2
A1
BLE
IO2
IO1
IO3
IO4
IO5IO6
IO7
A15
A14
A13 A12
A19
A18 DNU
326
5
41
D
E
B
A
C
F
G
H
A16
DNU
VCC
VCC VSS
48-Ball VFBGA
Top View
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CY62167DV18 MoBL®
Document #: 38-05326 Rev. *C Page 3 of 11
Maximum Ratings
Exceeding the maximum ratings may impair the useful life of
the device. These user guidelines are not tested.
Storage Temperature .................................–65°C to +150°C
Ambient Temperature with
Power Applied.............................................–55°C to +125°C
Supply Voltage to Ground Potential . –0.2V to VCCmax + 0.2V
DC Voltage Applied to Outputs
in High-Z State[4, 5]........................... –0.2V to VCCmax + 0.2V
DC Input Voltage[4, 5] ........................–0.2V to VCCmax + 0.2V
Output Current into Outputs (LOW)............................. 20 mA
Static Discharge Voltage.......................................... > 2001V
(MIL-STD-883, Method 3015)
Latch up Current..................................................... > 200 mA
Operating Range
Range Ambient
Temperature VCC[6]
Industrial –40°C to +85°C 1.65V to 1.95V
DC Electrical Characteristics (Over the Operating Range)
Parameter Description Test Conditions
55 ns
UnitMin Typ[2] Max
VOH Output HIGH Voltage IOH = −0.1 mA 1.4 V
VOL Output LOW Voltage IOL = 0.1 mA 0.2 V
VIH Input HIGH Voltage 1.4 VCC + 0.2 V
VIL Input LOW Voltage –0.2 0.4 V
IIX Input Leakage Current GND < VI< VCC –1 +1 µA
IOZ Output Leakage Current GND < VO< VCC, Output Disabled –1 +1 µA
ICC VCC Operating Supply Current f = fMAX = 1/tRC VCC = 1.95V, IOUT = 0 mA,
CMOS level
15 30 mA
f = 1 MHz 1.5 5
ISB1 Automatic CE Power down
Current −CMOS Inputs
CE1> VCC −0.2V, CE2< 0.2V,
VIN > VCC −0.2V, VIN < 0.2V,
f = fMAX (Address and Data Only),
f = 0 (OE, WE, BHE and BLE)
2.5 20 µA
ISB2 Automatic CE Power down
Current −CMOS Inputs
CE1> VCC −0.2V, CE2< 0.2V,
VIN > VCC −0.2V or VIN < 0.2V,
f = 0, VCC=1.95V
2.5 20 µA
Notes
4. VIL(min) = –2.0V for pulse durations less than 20 ns.
5. VIH(max) = VCC + 0.75V for pulse durations less than 20 ns.
6. Full device AC operation requires linear VCC ramp from 0 to VCC(min) and VCC must be stable at VCC(min) for 500 µs.
7. Tested initially and after any design or process changes that may affect these parameters.
Capacitance [7]
Parameter Description Test Conditions Max Unit
CIN Input Capacitance TA= 25°C, f = 1 MHz, VCC = VCC(typ) 6pF
COUT Output Capacitance 8 pF
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Thermal Resistance [7]
Parameter Description Test Conditions VFBGA Unit
ΘJA Thermal Resistance
(Junction to Ambient)
Still Air, soldered on a 3 × 4.5 inch,
two-layer printed circuit board
55 °C/W
ΘJC Thermal Resistance
(Junction to Case)
16 °C/W
AC Test Loads and Waveforms
VCC
VCC
OUTPUT
R2
30 pF
INCLUDING
JIG AND
SCOPE
GND
90%
10%
90%
10%
Rise Time = 1 V/ns Fall Time = 1 V/ns
OUTPUT V
Equivalent to: THEVENIN EQUIVALENT
ALL INPUT PULSES
RTH
R1
Parameters 1.8V Unit
R1 13500 Ω
R2 10800 Ω
RTH 6000 Ω
VTH 0.80 V
Data Retention Characteristics (Over the Operating Range)
Parameter Description Conditions Min Typ [2] Max Unit
VDR VCC for Data Retention 1.0 1.95 V
ICCDR Data Retention Current VCC= 1.0V, CE1> VCC – 0.2V, CE2< 0.2V,
VIN > VCC – 0.2V or VIN < 0.2V
10 µA
tCDR[7] Chip Deselect to Data Retention Time 0 ns
tR[8] Operation Recovery Time tRC ns
Data Retention Waveform[9]
VCC, min
VCC, min
tCDR
VDR >1.0V
tR
CE1or
VCC
BHE,BLE
or
CE2
DATA RETENTION MODE
Notes
8. Full device operation requires linear VCC ramp from VDR to VCC(min) > 100 µs or stable at VCC(min) > 100 µs.
9. BHE.BLE is the AND of both BHE and BLE. Deselect the chip by either disabling the chip enable signals or by disabling both BHE and BLE.
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Document #: 38-05326 Rev. *C Page 5 of 11
Switching Characteristics (Over the Operating Range)[10]
Parameter Description 55 ns Unit
Min Max
Read Cycle
tRC Read Cycle Time 55 ns
tAA Address to Data Valid 55 ns
tOHA Data Hold from Address Change 10 ns
tACE CE1LOW and CE2 HIGH to Data Valid 55 ns
tDOE OE LOW to Data Valid 25 ns
tLZOE OE LOW to LOW Z[11] 5ns
tHZOE OE HIGH to High Z[11, 12] 20 ns
tLZCE CE1LOW and CE2 HIGH to Low Z[11] 10 ns
tHZCE CE1HIGH and CE2 LOW to High Z[11, 12] 20 ns
tPU CE1LOW and CE2 HIGH to Power up 0 ns
tPD CE1HIGH and CE2 LOW to Power down 55 ns
tDBE BLE/BHE LOW to Data Valid 55 ns
tLZBE BLE/BHE LOW to Low Z[11] 5ns
tHZBE BLE/BHE HIGH to HIGH Z[11, 12] 20 ns
Write Cycle[13]
tWC Write Cycle Time 55 ns
tSCE CE1LOW and CE2 HIGH to Write End 40 ns
tAW Address Setup to Write End 40 ns
tHA Address Hold from Write End 0 ns
tSA Address Setup to Write Start 0 ns
tPWE WE Pulse Width 40 ns
tBW BLE/BHE LOW to Write End 45 ns
tSD Data Setup to Write End 25 ns
tHD Data Hold from Write End 0 ns
tHZWE WE LOW to High- [11, 12] 20 ns
tLZWE WE HIGH to Low-Z[11] 10 ns
Notes
10. Test conditions for all parameters other than tri-state parameters assume signal transition time of 1 ns/V, timing reference levels of VCC(typ)/2, input pulse levels
of 0 to VCC(typ), and output loading of the specified IOL/IOH as shown in “AC Test Loads and Waveforms” on page 4.
11. At any given temperature and voltage condition, tHZCE is less than tLZCE, tHZBE is less than tLZBE, tHZOE is less than tLZOE, and tHZWE is less than tLZWE for any
given device.
12. tHZOE, tHZCE, tHZBE, and tHZWE transitions are measured when the outputs enter a high impedance state.
13. The internal write time of the memory is defined by the overlap of WE, CE1 = VIL, BHE, BLE or both = VIL, and CE2 = VIH. All signals must be ACTIVE to initiate
a write and any of these signals can terminate a write by going INACTIVE. The data input setup and hold timing must be referenced to the edge of the signal that
terminates the write.
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CY62167DV18 MoBL®
Document #: 38-05326 Rev. *C Page 6 of 11
Switching Waveforms
Read Cycle 1 (Address Transition Controlled)[14, 15]
Read Cycle 2 (OE Controlled)[15, 16]
PREVIOUS DATA VALID DATA VALID
RC
tAA
tOHA
tRC
ADDRESS
DATA OUT
50%
50%
DATA VALID
tRC
tACE
tDOE
tLZOE
tLZCE
tPU
HIGH IMPEDANCE
tHZOE
tPD
tHZBE
tLZBE
t
HZCE
tDBE
OE
CE1
ADDRESS
CE2
BHE/BLE
DATA OUT
VCC
SUPPLY
CURRENT
HIGH
ICC
ISB
IMPEDANCE
Notes
14. The device is continuously selected. OE, CE1 = VIL, BHE and/or BLE = VIL, and CE2 = VIH.
15. WE is HIGH for read cycle.
16. Address valid before or similar to CE1, BHE, BLE transition LOW and CE2transition HIGH.
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CY62167DV18 MoBL®
Document #: 38-05326 Rev. *C Page 7 of 11
Write Cycle 1 (WE Controlled)[13, 17, 18]
Write Cycle 2 (CE1or CE2 Controlled)[13, 17, 18]
Switching Waveforms (continued)
tHD
tSD
tPWE tSA
tHA
tAW
tSCE
tWC
tHZOE
VALID DATA
tBW
NOTE 19
CE1
ADDRESS
CE2
WE
DATA IO
OE
BHE/BLE
tHD
tSD
tPWE
tHA tAW
tSCE
tWC
tHZOE
VALID DATA
tBW
tSA
NOTE 19
CE1
ADDRESS
CE2
WE
DATA IO
OE
BHE/BLE
Notes
17. Data IO is high impedance if OE = VIH.
18. If CE1goes HIGH and CE2goes LOW simultaneously with WE = VIH, the output remains in a high impedance state.
19. During this period, the IOs are in output state. Do not apply input signals.
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CY62167DV18 MoBL®
Document #: 38-05326 Rev. *C Page 8 of 11
Write Cycle 3 (WE Controlled, OE LOW)[18]
Write Cycle 4 (BHE/BLE Controlled, OE LOW)[18]
Switching Waveforms (continued)
VALID DATA
tHD
tSD
tLZWE
tPWE
tSA
tHA tAW
tSCE
tWC
tHZWE
tBW
NOTE 19
CE
1
ADDRESS
CE
2
WE
DATA IO
BHE
/BLE
tHD tSD
tSA
tHA tAW
tWC
VALID DATA
tBW
tSCE
tPWE
NOTE 19
CE
1
ADDRESS
CE
2
WE
DATA IO
BHE
/BLE
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CY62167DV18 MoBL®
Document #: 38-05326 Rev. *C Page 9 of 11
Truth Table
CE1CE2WE OE BHE BLE Inputs/Outputs Mode Power
H X X X X X High Z Deselect/Power Down Standby (ISB)
X L X X X X High Z Deselect/Power Down Standby (ISB)
X X X X H H High Z Deselect/Power Down Standby (ISB)
L H H L L L Data Out (IO0–IO15) Read Active (ICC)
L H H L H L High Z (IO8–IO15);
Data Out (IO0–IO7)
Read Active (ICC)
L H H L L H Data Out (IO8–IO15);
High Z (IO0–IO7)
Read Active (ICC)
LHLXLLDataIn(IO
0–IO15) Write Active (ICC)
LHLXHLHighZ(IO
8–IO15);
Data In (IO0–IO7)
Write Active (ICC)
LHLXLHDataIn(IO
8–IO15);
High Z (IO0–IO7)
Write Active (ICC)
L H H H L H High Z Output Disabled Active (ICC)
L H H H H L High Z Output Disabled Active (ICC)
L H H H L L High Z Output Disabled Active (ICC)
Ordering Information
Speed
(ns) Ordering Code Package Diagram Package Type Operating Range
55 CY62167DV18LL-55BVXI 51-85178 48-ball Fine Pitch BGA (8 x 9.5 x 1 mm) (Pb-free) Industrial
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CY62167DV18 MoBL®
Document #: 38-05326 Rev. *C Page 10 of 11
© Cypress Semiconductor Corporation, 2002-2007. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the
use of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to
be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its
products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress
products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.
Package Diagrams
Figure 1. 48-Ball VFBGA (8 x 9.5 x 1 mm), 51-85178
MoBL is a registered trademark, and More Battery Life is a trademark of Cypress Semiconductor. All product and company names
mentioned in this document are the trademarks of their respective holders.
A
1
A1 CORNER
0.75
0.75
Ø0.30±0.05(48X)
Ø0.25 M C A B
Ø0.05MC
B
A
0.15(4X)
0.21±0.05
1.00 MAX
C
SEATING PLANE
0.55 MAX.
0.25 C
0.10 C
A1 CORNER
TOP VIEW BOTTOM VIEW
234
3.75
5.25
B
C
D
E
F
G
H
65
465231
D
H
F
G
E
C
B
A
8.00±0.10
9.50±0.10
A
9.50±0.10
8.00±0.10
B
1.875
2.625
0.26 MAX.
51-85178-**
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