IDT72041 データシートの表示（PDF） - Integrated Device Technology

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IDT72041

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

Integrated Device Technology 

IDT72021, IDT72031, IDT72041

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

MILITARY AND COMMERCIAL TEMPERATURE RANGES

WRITE TO

LAST PHYSICAL

LOCATION

W

R

t XOL

t XOH

READ FROM

LAST PHYSICAL

LOCATION

t XOL

t XOH

XO

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Figure 11. Expansion Out

t XI

XI

t XIR

t XIS

WRITE TO

FIRST PHYSICAL

W

LOCATION

R

t XIS

READ FROM

FIRST PHYSICAL

LOCATION

Figure 12. Expansion In

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OPERATING CONFIGURATIONS

SINGLE DEVICE CONFIGURATION

The IDT72021/031/041 is in the Single Device

Configuration when the Expansion In (XI) control input is

grounded (see Figure 13).

(HALF–FULL FLAG) HF AEF

WRITE (W)

9

DATA IN (D)

FULL FLAG (FF)

RESET (RS)

9

IDT

72021/031/041

EXPANSION IN (XI)

READ (R)

DATA OUT (Q)

EMPTY FLAG (EF)

RETRANSMIT (RT)

OUTPUT ENABLE (OE)

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Figure 13. Block Diagram of Single 1K/2K/4K x 9 FIFO

5.09

10

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