IDT7207L25P(1996) データシートの表示（PDF） - Integrated Device Technology

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IDT7207L25P
(Rev.:1996)

CMOS ASYNCHRONOUS FIFO 32,768 x 9

Integrated Device Technology 

IDT7207 CMOS ASYNCHRONOUS FIFO

32,768 x 9

LAST WRITE

R

IGNORED

WRITE

MILITARY AND COMMERCIAL TEMPERATURE RANGES

FIRST READ

W

FF

W

R

EF

DATAOUT

t WFF

t RFF

Figure 4. Full FlagTiming From Last Write to First Read

LAST READ

IGNORED

READ

FIRST WRITE

3140 drw 07

t REF

tA

VALID

t WEF

Figure 5. Empty Flag Timing From Last Read to First Write

3171 drw 08

RT

W,R

HF, EF, FF

t RTC

t RT

t RTS

RTF

NOTE:

1. EF, FF and HF may change status during Retransmit, but flags will be valid at tRTC.

Figure 6. Retransmit

t RTR

FLAG VALID

3140 drw 09

5.05

6

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