CY7C199CN-15ZXC Cypress Semiconductor Corp, CY7C199CN-15ZXC Datasheet - Page 8

• Manufacturer Part Number: CY7C199CN-15ZXC
• Description: IC SRAM 256KBIT 15NS 28TSOP
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C199CN-15ZXC

• Format - Memory: RAM
• Memory Type: SRAM - Asynchronous
• Memory Size: 256K (32K x 8)
• Speed: 15ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-TSOP I
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Timing Waveforms
Write Cycle 1 (WE controlled)
Write Cycle 2 (CE controlled)
Notes
Document #: 001-06435 Rev. *B
13. This cycle is WE controlled, OE is HIGH during write.
14. Data in and/or out is high impedance if OE = V
15. During this period the IOs are in output state and input signals must not be applied.
16. This cycle is CE controlled.
17. If CE goes HIGH simultaneously with WE going HIGH, the output remains in a high impedance state.
Data In/Out
Data In/Out
Address
Address
WE
WE
OE
CE
CE
Undefined
see footnotes
High Z
(continued)
[14, 16, 17]
[13, 14, 15]
t
t
HZOE
SA
IH
.
t
SA
t
AW
t
SCE
t
AW
Data-In Valid
t
t
WC
WC
Data-In Valid
t
t
t
SD
PWE
SD
t
SCE
t
t
HA
HD
t
HD
t
HA
CY7C199CN
High Z
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