CY7C4255V-25ASC Cypress Semiconductor Corp, CY7C4255V-25ASC Datasheet - Page 14

CY7C4255V-25ASC

Manufacturer Part Number
CY7C4255V-25ASC
Description
Manufacturer
Cypress Semiconductor Corp
Datasheet

Specifications of CY7C4255V-25ASC

Configuration
Dual
Density
144Kb
Access Time (max)
15ns
Word Size
18b
Organization
8Kx18
Sync/async
Synchronous
Expandable
Yes
Bus Direction
Uni-Directional
Package Type
TQFP
Clock Freq (max)
40MHz
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (min)
3V
Operating Supply Voltage (max)
3.6V
Supply Current
30mA
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
Note
Document #: 38-06012 Rev. *B
23. PAE is offset = n. Number of data words into FIFO already = n.
WCLK
PAE
RCLK
WEN
WCLK
REN
RCLK
WEN
REN
HF
[23]
(continued)
HALF FULL OR LESS
t
Figure 13. Programmable Almost Empty Flag Timing
CLKH
t
CLKH
Figure 12. Half Full Timing
t
ENS
t
ENS
t
ENH
t
ENH
t
CLKL
t
CLKL
t
t
PAE
HF
t
ENS
t
ENS
HALF FULL + 1
N + 1 WORDS
OR MORE
IN FIFO
CY7C4255V, CY7C4265V
CY7C4275V, CY7C4285V
t
t
PAE
HF
HALF FULL OR LESS
n WORDS IN FIFO
Page 14 of 21
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