CY7C194B-15PC Cypress Semiconductor Corp, CY7C194B-15PC Datasheet - Page 9

• Manufacturer Part Number: CY7C194B-15PC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C194B-15PC

• Density: 256Kb
• Access Time (max): 15ns
• Sync/async: Asynchronous
• Architecture: Not Required
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 5V
• Address Bus: 16b
• Package Type: PDIP
• Operating Temp Range: 0C to 70C
• Number Of Ports: 1
• Supply Current: 80mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 24
• Word Size: 4b
• Number Of Words: 64K
• Lead Free Status / Rohs Status: Not Compliant

Document #: 38-05409 Rev. *A
Write Cycle No. 1
Write Cycle No. 2
Notes:
Data In/Out
Data In/Out
Address
13. This cycle is WE controlled, OE is HIGH during write.
14. Data In/Out is high impedance if OE = V
15. During this period the I/Os are in output state and input signals should not be applied.
16. This cycle is CE controlled.
17. Data In/Out is high impedance if OE = V
18. If CE goes HIGH simultaneously with WE going HIGH, the output remains in a high-impedance state.
Address
WE
WE
OE
CE
CE
Undefined
see footnotes
High Z
(CE Controlled) 16 17 18
(WE Controlled) 2 13 14 15
t
HZOE
t
SA
IH
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
CY7C194B
CY7C195B
High Z
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