CY7C460A-25PTC Cypress Semiconductor Corp, CY7C460A-25PTC Datasheet - Page 6

• Manufacturer Part Number: CY7C460A-25PTC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C460A-25PTC

• Configuration: Dual
• Density: 72Kb
• Access Time (max): 25ns
• Word Size: 9b
• Organization: 8Kx9
• Sync/async: Asynchronous
• Expandable: Yes
• Bus Direction: Uni-Directional
• Package Type: DIP
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Supply Current: 60mA
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 28
• Lead Free Status / Rohs Status: Not Compliant

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
R
[11,12]
+ 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
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