参数资料
型号: CY7C4205-10ACT
厂商: CYPRESS SEMICONDUCTOR CORP
元件分类: FIFO
英文描述: 256 X 18 OTHER FIFO, 8 ns, PQFP64
封装: 14 X 14 MM, PLASTIC, TQFP-64
文件页数: 23/25页
文件大小: 412K
代理商: CY7C4205-10ACT
CY7C4425/4205/4215
CY7C4225/4235/4245
7
Notes:
14. .tSKEW2 is the minimum time between a rising WCLK edge and a rising RCLK edge to guarantee that EF will go HIGH during the current clock cycle. It the time between the
rising edge of WCLK and the rising edge of RCLK is less than tSKEW2, then EF may not change state until the next RCLK edge.
15. The clocks (RCLK, WCLK) can be free-running during reset.
16. After reset, the outputs will be LOW if OE = 0 and three-state if OE = 1.
Switching Waveforms (continued)
Read Cycle Timing
tCLKH
tCLKL
NO OPERATION
tSKEW2
WEN
tCLK
tOHZ
tREF
RCLK
Q0 –Q17
EF
REN
WCLK
OE
tOE
tENS
tOLZ
tA
tENH
VALID DATA
42X5–7
[14]
tRS
tRSR
Q0- Q17
RS
tRSF
OE=1
OE=0
REN, WEN,
LD
EF,PAE
FF,PAF,
HF
42X5–8
Reset Timing[15]
[16]
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