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CY7C421(2002) 查看數據表(PDF) - Cypress Semiconductor
零件编号
产品描述 (功能)
生产厂家
CY7C421
(Rev.:2002)
256/512/1K/2K/4K x 9 Asynchronous FIFO
Cypress Semiconductor
CY7C421 Datasheet PDF : 22 Pages
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Switching Waveforms
(continued)
Empty Flag and Read Data Flow-Through Mode
CY7C419/21/25/29/33
DATA IN
W
R
EF
DATA OUT
t
RAE
t
RPE
t
REF
t
WEF
t
HWZ
t
A
DATA VALID
Full Flag and Write Data Flow-Through Mode
C420
–
15
R
W
FF
DATA IN
DATA OUT
t
WAF
t
WPF
t
RFF
t
WFF
t
A
DATA VALID
t
HD
DATA VALID
t
SD
C420
–
16
Document #: 38-06001 Rev. *A
Page 10 of 22
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