UT621024SC-55L datasheet(1/12 Pages) ETC

Part #	UT621024SC-55L

Description	128K X 8 BIT LOW POWER CMOS SRAM

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UTRON

UT621024

Rev. 1.5

128K X 8 BIT LOW POWER CMOS SRAM

________________________________________________________________________________________________

UTRON TECHNOLOGY INC.

P80036

1F, No. 11, R&D Rd. II, Science-Based Industrial Park, Hsinchu, Taiwan, R. O. C.

TEL: 886-3-5777882 FAX: 886-3-5777919

1



FEATURES

Access time : 35/55/70ns (max.)

Low power consumption :

Operating : 60/50/40 mA (typical)

Standby : 2

µA (typical) L-version

1

µA (typical) LL-version

Single 5V power supply

All inputs and outputs TTL compatible

Fully static operation

Three state outputs

Data retention voltage : 2V (min.)

Package : 32-pin 600 mil PDIP

32-pin 450 mil SOP

32-pin 8mmx20mm TSOP-1

32-pin 8mmx13.4mm STSOP

FUNCTIONAL BLOCK DIAGRAM

COLUMNI/O

COLUMNDECODER

ROW

DECODER

I/O

CONTROL

LOGIC

CONTROL

A15

I/O1

VSS

VCC

WE

OE

1

CE

I/O8

.

...

. .

.

A13

A7

A6

A5

A4

A8

A11

A2 A1 A0

A10

...

MEMORYARRAY

1024 ROWS×1024 COLUMNS

A9

A14

A12

A16

A3

CE2

PIN DESCRIPTION

SYMBOL

DESCRIPTION

A0 - A16

Address Inputs

I/O1 - I/O8

Data Inputs/Outputs

1

CE ,CE2

Chip enable 1,2 Inputs

WE

Write Enable Input

OE

Output Enable Input

VCC

Power Supply

VSS

Ground

NC

No Connection

GENERAL DESCRIPTION

The UT621024 is a 1,048,576-bit low power

CMOS static random access memory

organized as 131,072 words by 8 bits. It is

fabricated using high performance, high

reliability CMOS technology.

The UT621024 is designed for low power

application. It is particularly well suited for

battery back-up nonvolatile memory

application.

The UT621024 operates from a single 5V

power supply and all inputs and outputs are

fully TTL compatible.

PIN CONFIGURATION

A12

A7

A6

A5

A4

A3

A2

A1

A0

I/O1

I/O2

CE2

A8

A9

A11

A10

I/O8

I/O7

I/O6

I/O5

I/O4

I/O3

Vss

PDIP / SOP

28

14

13

12

11

10

9

8

7

6

5

4

3

2

1

17

16

15

20

19

18

22

23

24

25

26

27

21

1

CE

WE

OE

A13

A14

NC

A16

Vcc

A15

29

30

31

32

TSOP-I/STSOP

I/O4

A11

A9

A8

A13

I/O3

A10

A14

A12

A7

A6

A5

Vcc

I/O8

I/O7

I/O6

I/O5

Vss

I/O2

I/O1

A0

A1

A2

A4

A3

UT621024

28

14

13

12

11

10

9

8

7

6

5

4

3

2

1

17

16

15

20

19

18

22

23

24

25

26

27

21

WE

OE

1

CE

CE2

NC

A15

A16

32

31

30

29

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