HANBit

HMD4M32M8GL

HANBit Electronics Co.,Ltd.

REV.1.0. (August. 2002)

1

GENERAL DESCRIPTION

The HMD4M32M8GL is a 4M x 32bit dynamic RAM high-density memory module. The module consists of eight CMOS

4M x 4bit DRAMs in 24-pin SOJ packages mounted on a 72-pin, double-sided, FR-4-printed circuit board.

A 0.1 or

0.22uF decoupling capacitor is mounted on the printed circuit board for each DRAM components. The module is a single

In-line Memory Module with edge connections and is intended for mounting in to 72-pin edge connector sockets. All

module components may be powered from a single 5V DC power supply and all inputs and outputs are TTL-compatible.

FEATURES

w Part Identification

HMD4M32M8GL- 4,096 Cycles/64ms Ref . Gold

w Access times : 50, 60ns

w High-density 16MByte design

w Single + 5V

±0.5V power supply

w JEDEC standard pinout

w FP(Fast Page) mode operation

w TTL compatible inputs and outputs

w FR4-PCB design

OPTIONS

MARKING

w Timing

50ns access

-5

60ns access

-6

w Packages

72-pin SIMM

M

PIN CONFIGURATION DESCRIPTION

Pin Name

FUNCTION

A0

– A11

Address Input(4K Ref.)

A0

– A10

Address Input(2K Ref.)

DQ0-31

Data In/Out

/WE0-/WE3

Read/Write Input

/OE

Data Output Enable

/CAS

Column Address Strobe

/RAS

Row Address Strobe

Board Insertion Signal

SIZE

Size Indentification

Vcc/ Vss

Power and Ground

NC

No Connection

PIN

SYMBOL

PIN

SYMBOL

PIN

SYMBOL

1

Vss

25

DQ22

49

DQ8

2

DQ0

26

DQ7

50

DQ24

3

DQ16

27

DQ23

51

DQ9

4

DQ1

28

A8

52

DQ25

5

DQ17

29

A10

53

DQ10

6

DQ2

30

Vcc

54

DQ26

7

DQ18

31

/WE2

55

DQ11

8

DQ3

32

NC

56

DQ27

9

DQ19

33

Vss

57

DQ12

10

Vcc

34

/RAS

58

DQ28

11

/WE0

35

Vcc

59

/WE3

12

A0

36

NC

60

DQ29

13

A1

37

NC

61

DQ13

14

A2

38

/OE0

62

DQ30

15

A3

39

Vss

63

DQ14

16

A4

40

/CAS

64

DQ31

17

A5

41

Vcc

65

DQ15

18

A6

42

NC

66

Vss

19

A7

43

NC

67

NC

20

DQ4

44

NC

68

NC

21

DQ20

45

A9

69

22

DQ5

46

A11

70

NC

23

DQ21

47

/WE1

71

SIZE

24

DQ6

48

Vcc

72

Vss

16Mbyte(4Mx32) Fast Page Mode, 4K Refresh 72Pin SIMM

Part No.

HMD4M32M8GL

PIN ASSIGNMENT