CY7C1399B-12ZC Cypress Semiconductor Corp, CY7C1399B-12ZC Datasheet - Page 7

• Manufacturer Part Number: CY7C1399B-12ZC
• Description: IC SRAM 256KBIT 12NS 28TSOP
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C1399B-12ZC

• Format - Memory: RAM
• Memory Type: SRAM - Asynchronous
• Memory Size: 256K (32K x 8)
• Speed: 12ns
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-TSOP I
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 428-1049

Switching Waveforms
Document #: 38-05071 Rev. *B
Write Cycle No. 1 (WE Controlled)
Write Cycle No. 2 (CE Controlled)
Write Cycle No. 3 (WE Controlled, OE LOW)
Notes:
14. Data I/O is high impedance if OE = V
15. If CE goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state.
16. During this period, the I/Os are in the output state and input signals should not be applied.
ADDRESS
ADDRESS
ADDRESS
DATA I/O
DATA I/O
DATA I/O
CE
WE
WE
WE
OE
CE
CE
NOTE 16
NOTE 16
t
SA
(continued)
t
SA
IH
t
HZOE
.
[9, 14, 15]
[9, 14, 15]
t
HZWE
t
SA
[10, 15]
t
AW
t
t
AW
AW
t
WC
t
t
WC
WC
DATA
t
PWE
t
SD
DATA
DATA
IN
t
SCE
t
SD
t
VALID
SD
IN
IN
VALID
VALID
t
HD
t
t
t
HA
HA
t
LZWE
HA
t
t
HD
HD
CY7C1399B
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