CY7C464-40PC Cypress Semiconductor Corp, CY7C464-40PC Datasheet - Page 6

• Manufacturer Part Number: CY7C464-40PC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C464-40PC

• Configuration: Dual
• Density: 288Kb
• Access Time (max): 40ns
• Word Size: 9b
• Organization: 32Kx9
• Sync/async: Asynchronous
• Expandable: Yes
• Bus Direction: Uni-Directional
• Package Type: PDIP
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Supply Current: 70mA
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 28
• Lead Free Status / Rohs Status: Not Compliant

Switching Waveforms
Notes:
10. t
11. 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
Full Flag and Write Data Flow-Through Mode
Retransmit
DATA OUT
Last READ to First WRITE Empty Flag
DATA OUT
(Military), whose flags will be valid after t
DATA IN
RTC
= t
FL/RT
FF
PRT
W
R,W
R
EF
+ t
W
R
[10,11]
RTR
.
t
t
A
RTC
t
REF
t
LAST READ
A
(Continued)
VALID
t
RTR
DATA VALID
RTC
+ 10 ns.
[7]
t
PRT
t
RTC
t
t
WAF
RFF
FIRST WRITE
t
WEF
t
WFF
t
RTR
6
t
WPF
DATA VALID
t
SD
ADDITIONAL
WRITES
t
HD
FIRST READ
VALID
RTC
, except for the CY7C46x-20
CY7C460
CY7C462
CY7C464
C460–12
C460–13
C460–11