CY7C464A-25PC Cypress Semiconductor Corp, CY7C464A-25PC Datasheet - Page 6

• Manufacturer Part Number: CY7C464A-25PC
• Description: FIFO Mem Async Dual Depth/Width Uni-Dir 32K x 9 28-Pin PDIP
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C464A-25PC

• Package: 28PDIP
• Configuration: Dual
• Bus Directional: Uni-Directional
• Density: 288 Kb
• Organization: 32Kx9
• Data Bus Width: 9 Bit
• Timing Type: Asynchronous
• Expansion Type: Depth|Width
• Typical Operating Supply Voltage: 5 V
• Operating Temperature: 0 to 70 °C

Document #: 38-06011 Rev. *A
Last READ to First WRITE Empty Flag
Switching Waveforms
Notes:
11. t
12. EF, HF, and FF may change state during retransmit as a result of the offset of the read and write pointers, but flags will be valid at t
Retransmit
Last Write to First Read Full Flag
DATA OUT
CY7C46x-20 (Military), whose flags will be valid after t
RTC
FL/RT
= t
R,W
PRT
FF
EF
W
W
R
[11,12]
R
+ t
RTR
.
t
RTC
t
t
REF
WFF
LAST WRITE
t
LAST READ
A
[7]
VALID
(continued)
t
RTR
t
PRT
RTC
t
RTC
+ 10 ns.
FIRST WRITE
FIRST READ
t
t
RFF
WEF
t
RTR
ADDITIONAL
ADDITIONAL
WRITES
READS
FIRST WRITE
FIRST READ
CY7C460A/CY7C462A
CY7C464A/CY7C466A
VALID
RTC
, except for the
Page 6 of 15
C460A–12
C460A–10
C460A–11