IDT72021L30D datasheet(8/14 Pages) IDT

Part #	IDT72021L30D

Description	CMOS ASYNCHRONOUS FIFO WITH RETRANSMIT 1K x 9, 2K x 9, 4K x 9

Download	14 Pages

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Manufacturer	IDT [Integrated Device Technology]

Direct Link	http://www.idt.com

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8 / 14 page

5.09

8

MILITARY AND COMMERCIAL TEMPERATURE RANGES

IDT72021, IDT72031, IDT72041

CMOS ASYNCHRONOUS FIFO WITH RETRANSMIT 1K x 9, 2K x 9, 4K x 9

Figure 4. Full Flag From Last Write to First Read

Figure 5. Empty Flag From Last Read to First Write

Figure 6. Retransmit

NOTE:

1. Assume

OE is asserted LOW.

LAST WRITE

R

IGNORED

WRITE

FIRST READ

ADDITIONAL

READS

FIRST

WRITE

W

FF

t WFF

tRFF

2677 drw 07

LAST READ

W

IGNORED

READ

FIRST WRITE

ADDITIONAL

WRITES

FIRST

READ

EF

R

t REF

tWEF

2677 drw 08

VALID

t A

DATA OUT

(1)

tRTC

tRT

RT

W,R

AEF, HF, EF, FF

t RTR

FLAG VALID

2677 drw 09

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IDT72021L30D Datasheet(PDF) 8 Page - Integrated Device Technology

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