1

A0 to A16

WE

OE

CS1, CS2

I/O1 to I/O8

Address Input

Write Enable

Output Enable

Chip Select

Data I/O

Power Supply (2.7V to 3.6V)

Power Supply (0V)

N. C.

No connection

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

CS1

OE

WE

I/O Buffer

Column Gate

Memory Cell Array

1024

×128×8

128

×8

8

10

1024

7

128

I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 I/O8

A13

A15

A16

A14

CS2

1

A11

32

OE

2

A9

31

A10

3

A8

30

CS1

4

A13

29

I/08

5

WE

28

I/07

6

CS2

27

I/06

7

A15

26

I/05

8

25

I/04

9

N.C.

24

10

A16

23

I/03

11

A14

22

I/02

12

A12

21

I/01

13

A7

20

A0

14

A6

19

A1

15

A5

18

A2

16

A4

17

A3

16

A4

17

A3

15

A5

18

A2

14

A6

19

A1

13

A7

20

A0

12

A12

21

I/01

11

A14

22

I/02

10

A16

23

I/03

9

N.C.

24

8

25

I/04

7

A15

26

I/05

6

CS2

27

I/06

5

WE

28

I/07

4

A13

29

I/08

3

A8

30

CS1

2

A9

31

A10

1

A11

32

OE

(SOP6)

(TSOP/Slim-TSOP)

32

N.C. 1

31

A15

A16

2

30

CS2

A14

3

29

WE

A12

4

28

A13

A7

5

27

A8

A6

6

26

A9

A5

7

25

A11

A4

8

24

OE

A3

9

23

A10

A2

10

22

CS1

A1

11

21

I/08

A0

12

20

I/07

I/01

13

19

I/06

I/02

14

18

I/05

I/03

15

17

I/04

16

(TSOP-R1/Slim-TSOP-R1)

SRM20V100LLTX/KX

SRM20V100LLRX/YX

1M-Bit Static RAM

PF805-04

s DESCRIPTION

×8-bit asynchronous, static, random access memory on a monolithic

CMOS chip. Its very low standby power requirement makes it ideal for applications requiring non-volatile storage

with back-up batteries. And —25 to 85

°C operating temperature range makes it ideal for portable equipment.

The asynchronous and static nature of the memory requires no external clock or refreshing circuit. Both the

input and output ports are TTL compatible and 3-state output allows easy expansion of memory capacity.

s FEATURES

q Wide temperature range ..... –25 to 85

°C

q Low supply current .............. standby: 0.6

µA (Typ.): LL Version

0.3

µA (Typ.): SL Version

operation: 8mA/1MHz (Typ.)

q Completely static ................. No clock required

q Supply voltage..................... 2.7V to 3.6V

q TTL compatible inputs and outputs

q 3-state output with wired-OR capability

q Non-volatile storage with back-up batteries

SOP6-32pin (plastic)

TSOP ( I )-32pin (plastic)

TSOP ( I )-32pin-R1 (plastic)

Slim-TSOP ( I )-32pin (plastic)

Slim-TSOP ( I )-32pin-R1 (plastic)

s BLOCK DIAGRAM

¡

PIN DESCRIPTION

Low

Voltage

Operation

Products

q Low Supply Voltage

q Wide Temperature Range

q Low Supply Current

q Access Time 70ns (2.7V)

q 131,072 Words

×8-Bit Asynchronous

s PIN CONFIGURATION