IDT7142LA55L48I datasheet(8/16 Pages) IDT

Numer części	IDT7142LA55L48I

Szczegółowy opis	HIGH-SPEED 2K x 8 DUAL-PORT STATIC RAM WITH INTERRUPTS

PDF	16 Pages

Scroll/Zoom	100%

Producent	IDT [Integrated Device Technology]

Strona internetowa	http://www.idt.com

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IDT7132SA/LA and IDT 7142SA/LA

High Speed 2K x 8 Dual Port Static RAM

Military, Industrial and Commercial Temperature Ranges

Timing Waveform of Read Cycle No. 2, Either Side(1)

NOTES:

1. R/W = VIH, CE = VIL, and is OE = VIL. Address is valid prior to the coincidental with CE transition LOW.

2. tBDD delay is required only in the case where the opposite port is completing a write operation to the same address location. For simultaneous read operations, BUSY has

no relationship to valid output data.

3. Start of valid data depends on which timing becomes effective last tAOE, tACE, tAA, and tBDD.

4. Timing depends on which signal is asserted last, OE or CE.

5. Timing depends on which signal is de-asserted first, OE or CE.

Timing Waveform of Read Cycle No. 1, Either Side(1)

ADDRESS

DATAOUT

tRC

tOH

PREVIOUS DATA VALID

tAA

tOH

DATA VALID

2692 drw 07

tBDDH

(2,3)

BUSYOUT

tHZ

(5)

tLZ

(4)

tPD

(3)

VALID DATA

tPU

50%

DATAOUT

CURRENT

ICC

ISS

50%

2692 drw 08

tLZ

(4)

tHZ

(5)

tACE

tAOE

(3)

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