IDT71V428L15YYYGI datasheet(2/9 Pages) IDT

Part #	IDT71V428L15YYYGI

Description	3.3V CMOS Static RAM 4 Meg (1M x 4-Bit)

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Manufacturer	IDT [Integrated Device Technology]

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IDT71V428S, IDT71V428L, 3.3V CMOS Static RAM

4 Meg (1M x 4-Bit)

Commercial and Industrial Temperature Ranges

Pin Configuration

SOJ

Top View

Pin Description

Truth Table(1,2)

Capacitance

(TA = +25°C, f = 1.0MHz, SOJ package)

A0

A1

A2

A3

A4

CS

I/O 0

VDD

VSS

I/O 1

WE

A5

A6

A7

A8

A9

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

A19

A18

A17

A16

A15

OE

I/O 3

VSS

VDD

I/O 2

A14

A13

A12

A11

A10

NC

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

SO32-3

3623 drw 02

NOTE:

1. This parameter is guaranteed by device characterization, but not production tested.

NOTES:

1. H = VIH, L = VIL, x = Don't care.

2. VLC = 0.2V, VHC = VCC -0.2V.

3. Other inputs

≥VHC or ≤VLC.

A0 – A19

Address Inputs

Input

CS

Chip Select

Input

WE

Write Enable

Input

OE

Output Enable

Input

I/O0 - I/O3

Data Input/Output

I/O

VDD

3.3V Power

Power

VSS

Ground

Gnd

3623 tbl 02

Symbol

Parameter(1)

Conditions

Max.

Unit

CIN

Input Capacitance

VIN = 3dV

7

pF

CI/O

I/O Capacitance

VOUT = 3dV

8

pF

3623 tbl 03

CS

OE

WE

I/O

Function

LL

H

DATAOUT

Read Data

LX

L

DATAIN

Write Data

L

H

High-Z

Output Disabled

H

X

High-Z

Deselected - Standby (ISB)

VHC(3)

X

High-Z

Deselected - Standby (ISB1)

3623 tbl 01

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