2

71V256SA

3.3V CMOS Static RAM 256K (32K x 8-Bit)

Commercial and Industrial Temperature Ranges

Jun.02.20

RecommendedOperating

Temperature and Supply Voltage

Pin Configurations(1)

Absolute Maximum Ratings(1)

Capacitance

(TA = +25°C, f = 1.0MHz, SOJ package)

Truth Table(1)

DIP/SOJ

Top View

Pin Descriptions

TSOP

Top View

3101 drw 02

5

6

7

8

9

10

11

12

A 12

1

2

3

4

24

23

22

21

20

19

18

17

71V256SA

13

14

28

27

26

25

A 7

A 6

A 5

A 4

A 3

A 2

A 1

A 0

I/O0

I/O1

V CC

WE

A 8

A 9

A 11

OE

A 10

CS

I/O7

16

15

I/O2

GN D

I/O6

I/O5

I/O4

I/O3

A 14

A 13

PJ G2 8

3101 drw 03

22

23

24

25

26

27

28

1

2

3

4

5

7

6

21

20

19

18

17

16

15

14

13

12

11

10

9

8

A10

CS

I/O7

I/O6

I/O5

I/O4

I/O3

GND

I/O2

I/O1

I/O0

A0

A1

A2

71V256SA

OE

A11

A9

A8

A13

A14

A7

A6

A5

A4

A3

A12

WE

VCC

PZG28

Name

Description

A0 - A14

Addresses

I/O0 - I/O7

Data Input/Output

CS

Chip Select

WE

Write Enable

OE

Output Enable

GND

Ground

VCC

Power

3101 tbl 01

NOTE:

1. H = VIH, L = VIL, X = Don’t Care

WE

CS

OE

I/O

Function

X

H

X

High-Z

Standby (ISB)

XVHC

X

High-Z

Standby (ISB1)

H

L

H

High-Z

Output Disable

HL

L

DOUT

Read

LL

X

DIN

Write

3101 tbl 02

NOTES:

1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS

may cause permanent damage to the device. This is a stress rating only and

functional operation of the device at these or any other conditions above those

indicated in the operational sections of this specification is not implied. Exposure

to absolute maximum rating conditions for extended periods may affect

reliability.

2. Input, Output, and I/O terminals; 4.6V maximum.

Symbol

Rating

Com'l

Unit

VCC

Supply Voltage

Relative to GND

-0.5 to +4.6

V

VTERM(2)

Terminal Voltage

Relative to GND

-0.5 to VCC+0.5

V

TBIAS

Temperature Under Bias

-55 to +125

o

C

TSTG

Storage Temperature

-55 to +125

o

C

PT

Power Dissipation

1.0

W

IOUT

DC Output Current

50

mA

3101 tbl 03

NOTE:

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

tested.

Symbol

Parameter(1)

Conditions

Max.

Unit

CIN

Input Capacitance

VIN = 3dV

6

pF

COUT

Output Capacitance

VOUT = 3dV

7

pF

3101 tbl 04

Grade

Temperature

GND

Vcc

Commercial

0OC to +70OC

0V

3.3V ± 0.3V

Industrial

-40OC to +85OC

0V

3.3V ± 0.3V

3101 tbl 05

NOTE:

1. This text does not indicate orientation of actual part-marking.