CYM1841A View Datasheet(PDF) - Cypress Semiconductor

Part Name

Description

Manufacturer

CYM1841A

256K x 32 Static RAM Module

Cypress Semiconductor 

CYM1841A

CYM1841C

Selection Guide

1841C-12

Maximum Access Time (ns)

12

Maximum Operating

Current (mA)

1600

Maximum Standby

480

Current (mA)

Shaded area contains preliminary information.

1841C-15

15

1600

480

1841A-20

1841C-20

20

1120

480

1841A-25

1841C-25

25

960

480

1841A-35

1841C-35

35

960

480

1841A-45

1841C-45

45

960

480

Pin Configurations

64-Pin

ZIP/SIMM

Top View

PD0

I/O0

I/O1

I/O2

I/O3

VCC

A7

A8

A9

I/O4

I/O5

I/O6

I/O7

WE

A14

CS1

CS3

A16

GND

I/O16

I/O17

I/O18

I/O19

A10

A11

A12

A13

I/O20

I/O21

I/O22

I/O23

GND

1

2

3

4

5

6

7

8

9

10 11

12 13

14 15

16 17

18 19

20 21

22 23

24 25

26 27

28 29

30 31

32

33

34 35

36 37

38 39

40 41

42 43

44 45

46 47

48 49

50 51

52 53

54 55

56 57

58 59

60 61

62 63

64

GND

PD1

I/O8

I/O9

I/O10

I/O11

A0

A1

A2

I/O12

I/O13

I/O14

I/O15

GND

A 15

CS2

CS4

A17

OE

I/O24

I/O25

I/O26

I/O27

A3

A4

A5

VCC

A6

I/O28

I/O29

I/O30

I/O31

1841A–3

72-Pin

SIMM

Top View

NC

PD3

PD0

I/O0

I/O1

I/O2

I/O3

VCC

AA78

A9

I/O4

I/O5

I/O6

I/O7

WE

A14

CS1

CS3

A16

GND

I/O16

I/O17

I/O18

I/O19

A10

A11

A12

A13

I/O20

I/O21

I/O22

I/O23

GND

A19

NC

1

2

3

4

5

6

7

8

9

10 11

12 13

14 15

16 17

18 19

20 21

22 23

24 25

26 27

28 29

30 31

32

33

34 35

36

37

38 39

40 41

42 43

44 45

46 47

48 49

50 51

52 53

54 55

56 57

58 59

60 61

62 63

64 65

66 67

68 69

70 71

72

NC

PD2

GND

PD1

I/O8

I/O9

I/O10

I/O11

A0

A1

A2

I/O12

I/O13

I/O14

I/O15

GND

A15

CS2

CS4

A17

OE

I/O24

I/O25

I/O26

I/O27

A3

A4

A5

VCC

A6

I/O28

I/O29

I/O30

I/O31

A18

NC

1841A–2

2

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