6.42

2

71V424S, 71V424L, 3.3V CMOS Static RAM

4 Meg (512K x 8-bit)

Commercial and Industrial Temperature Ranges

May.04.21

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

A5

NC

NC

A9

A8

A7

WE

I/03

I/02

VSS

VDD

I/01

I/00

CS

A2

A1

A0

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

NC

NC

A15

OE

I/07

I/06

VSS

VDD

I/05

I/04

A14

A13

A11

A10

NC

NC

NC

NC

A12

3622 drw 11

NC

NC

A3

A4

A6

A16

A17

A18

PHG44

71V424

A0

A1

A2

A3

CS

I/O0

VDD

VSS

I/O2

WE

A4

A5

A6

A7

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

NC

A18

A17

A16

OE

I/O7

I/O6

VSS

VDD

I/O5

A14

A13

A12

A11

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

PBG36

17

18

19

20

I/O1

I/O3

I/O4

NC

A8

A9

A10

A15

3622 drw 02

71V424

SOJ

Top View

Pin Configurations(1)

Truth Table(1,2)

Capacitance

(TA = +25°C, f = 1.0MHz, SOJ package)

TSOP

Top View

A0 – A18

Address Inputs

Input

CS

Chip Select

Input

WE

Write Enable

Input

OE

Output Enable

Input

I/O0 - I/O7

Data Input/Output

I/O

VDD

3.3V Power

Power

VSS

Ground

Gnd

3622 tbl 02

Pin Description

Symbol

Parameter(1)

Conditions

Max.

Unit

CIN

Input Capacitance

VIN = 3dV

7

pF

CI/O

I/O Capacitance

VOUT = 3dV

8

pF

3622 tbl 03

NOTE:

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

tested.

CS

OE

WE

I/O

Function

LL

H

DATAOUT Read Data

LX

L

DATAIN

Write Data

L

H

H

High-Z

Output Disabled

H

X

X

High-Z

Deselected - Standby (ISB)

VHC(3)

X

X

High-Z

Deselected - Standby (ISB1)

3622 tbl 01

NOTES:

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

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

3. Other inputs

≥VHC or ≤VLC.

NOTE:

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