PDM4M4060 Просмотр технического описания (PDF) - Paradigm Technology

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PDM4M4060

256K x 32 CMOS static RAM module

Paradigm Technology 

Pin Configuration(1)

NC

PD3

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

Vss

I/O16

I/O17

I/O18

I/O19

A10

A11

A12

A13

I/O20

I/O21

I/O22

I/O23

Vss

NC

NC

2

1

4

3

6

5

8

7

10

9

12

11

14

13

16

15

18

17

20

19

22

21

24

23

26

25

28

27

30

29

32

31

34

33

36 SIMM 35

38 TOP VIEW 37

40

39

42

41

44

43

46

45

48

47

50

49

52

51

54

53

56

55

58

57

60

59

62

61

64

63

66

65

68

67

70

69

72

71

NC

PD2

Vss

PD1

I/O8

I/O9

I/O10

I/O11

A0

A1

A2

I/O12

I/O13

I/O14

I/O15

Vss

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

NC

NC

PD0 - Vss

PD1 - Vss

PD2 - OPEN

PD3 - OPEN

NOTE:

1. Pins 3, 4, 5, and 7 (PD3-PD0) are read by the

user to determine the density of the module. If

PD0, PD1 reads VSS and PD2, PD3 reads

OPEN then the module has a 256K depth.

8-56

PDM4M4060

Pin Assignment

Pin

I/O31-I/O0

A17-A0

CS4-CS1

WE

OE

PD3-PD0

VCC

VSS

NC

Signal

Data Inputs/Outputs

Addresses

Chip Selects

Write Enable

Output Enable

Depth Identification

Power

Ground

No Connect

Rev 2.2 - 7/17/97

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