CY7C4225-25ASC Cypress Semiconductor Corp, CY7C4225-25ASC Datasheet - Page 13

• Manufacturer Part Number: CY7C4225-25ASC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C4225-25ASC

• Density: 16Kb
• Word Size: 18b
• Sync/async: Synchronous
• Expandable: Yes
• Package Type: TQFP
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 64
• Lead Free Status / Rohs Status: Not Compliant

Switching Waveforms
Write Expansion In Timing
HF/PAE/PAF
Read Expansion In Timing
Read Expansion Out Timing
Retransmit Timing
Notes:
async flags
32. Read from Last Physical Location.
33. Clocks are free running in this case.
34. The flags may change state during Retransmit as a result of the offset of the read and write pointers, but flags will be valid at t
35. For the synchronous PAE and PAF flags (SMODE), an appropriate clock cycle is necessary after t
REN/WEN
WCLK
and all
WCLK
FL/RT
RCLK
EF/FF
REN
RXO
WXI
RXI
[33, 34, 35]
(continued)
t
ENS
t
CLKH
t
XIS
t
XI
Note
32
t
XO
t
XO
13
t
PRT
RTR
to update these flags.
t
XIS
t
XI
CY7C4425/4205/4215
CY7C4225/4235/4245
t
RTR
RTR
.
42X5–21
42X5–22
42X5–23
42X5–20