HANBit

HMS1M32M8G/Z8

HANBit Electronics Co.,Ltd.

1

GENERAL DESCRIPTION

The HMS1M32M8G/Z8 is a high-speed static random access memory (SRAM) module containing 1,048,576

words organized in a x32-bit configuration. The module consists of eight 1M x 4 SRAMs mounted on a 72-pin,

double-sided, FR4-printed circuit board.

PD0 to PD3 identify the module’s density allowing interchangeable use of alternate density, industry- standard

modules. Eight chip enable inputs, (/CE1, /CE2, /CE3 and /CE4) are used to enable the module’s 4 bytes

independently. Output enable(/OE) and write enable(/WE) can set the memory input and output.

Data is written into the SRAM memory when write enable (/WE) and chip enable (/CE) inputs are both LOW.

Reading is accomplished when /WE remains HIGH and /CE and output enable (/OE) are LOW.

For reliability, this SRAM module is designed as multiple power and ground pin. All module components may be

powered from a single +5V DC power supply and all inputs and outputs are fully TTL-compatible.

FEATURES

Š Access times : 10, 12, 15, 17 and 20ns

Š High-density 4MByte design

Š High-reliability, high-speed design

Š Single + 5V ±10% power supply

Š Easy memory expansion /CE and /OE functions

Š All inputs and outputs are TTL-compatible

Š Industry-standard pinout

Š FR4-PCB design

Š Low profile 72-pin

Š Part identification

- HMS1M32M8G : SIMM design, Gold Plate Lead

- HMS1M32Z8 : ZIP design

→ The both are pin-to-pin compatible

OPTIONS

MARKING

Š Timing

10ns access

-10

12ns access

-12

15ns access

-15

17ns access

-17

20ns access

-20

Š Packages

72-pin SIMM

M

72-pin ZIP

Z

72-Pin ZIP

TOP VIEW

PD0 - Vss

PD1 - Open

PD2 - Vss

PD3 - Open

PIN ASSIGNMENT

NC

PD3

PD0

DQ0

DQ1

DQ2

DQ3

Vcc

A7

A8

A9

DQ4

DQ5

DQ6

DQ7

/WE

A14

/CE1

/CE3

A16

Vss

DQ16

DQ17

DQ18

DQ19

A10

A11

A12

A13

DQ20

DQ21

DQ22

DQ23

Vss

A19

NC

1

3

5

7

9

11

13

15

17

19

21

23

25

27

29

31

33

35

37

39

41

43

45

47

49

51

53

55

57

59

61

63

65

67

69

71

2

4

6

8

10

12

14

16

18

20

22

24

26

28

30

32

34

36

38

40

42

44

46

48

50

52

54

56

58

60

62

64

66

68

70

72

NC

PD2

Vss

PD1

DQ8

DQ9

DQ10

DQ11

A0

A1

A2

DQ12

DQ13

DQ14

DQ15

Vss

A15

/CE2

/CE4

A17

/OE

DQ24

DQ25

DQ26

DQ27

A3

A4

A5

Vcc

A6

DQ28

DQ29

DQ30

DQ31

A18

NC

SRAM MODULE 4Mbyte(1M x 32-Bit)

Part No.

HMS1M32M8G, HMS1M32Z8

H A N

B I T