HANBit

HMD8M32M16

URL:www.hbe.co.kr

HANBit Electronics Co.,Ltd.

REV.1.0 (August.2002)

1

SIMM TOP VIEW

PIN ASSIGNMENT

Note: A11 is not used for HMD8M32M16

GENERAL DESCRIPTION

The HMD8M32M16 is a 8M x 32 bit dynamic RAM high density memory module. The module consists of sixteen 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

HMD8M32M16--2048 Cycles/32ms Ref, Solder

HMD8M32M16G--2048 Cycles/32ms Ref, Gold

w Access times : 50, 60ns

w High-density 32MByte 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

PERFORMANCE RANGE

SPEED

tRAC

tCAC

tRC

tPC

-5

50ns

13ns

90ns

35ns

-6

60ns

15ns

110ns

40ns

PIN NAMES

Pin Name

Function

Pin Name

Function

Pin Name

Function

A0-A10

Address Input(2K Ref)

/RAS0, /RAS1

Row Address Strobe

Vss

Ground

A0-A11

Address Input(4K Ref)

/CAS0 - /CAS3

Column Address Strobe

NC

No Connection

DQ0-DQ31

Data In/Out

PD1 - PD4

Presence Detect

Vcc

Power(+5V)

/W

Read/Write Input

PIN

SYMBOL

PIN

SYMBOL

PIN

SYMBOL

PIN

SYMBOL

1

Vss

19

A10

37

NC

55

DQ11

2

DQ0

20

DQ4

38

NC

56

DQ27

3

DQ16

21

DQ20

39

Vss

57

DQ12

4

DQ1

22

DQ5

40

/CAS0

58

DQ28

5

DQ17

23

DQ21

41

/CAS2

59

Vcc

6

DQ2

24

DQ6

42

/CAS3

60

DQ29

7

DQ18

25

DQ22

43

/CAS1

61

DQ13

8

DQ3

26

DQ7

44

/RAS0

62

DQ30

9

DQ19

27

DQ23

45

/RAS1

63

DQ14

10

Vcc

28

A7

46

NC

64

DQ31

11

NC

29

NC(A11)

47

/W

65

DQ15

12

A0

30

Vcc

48

NC

66

NC

13

A1

31

A8

49

DQ8

67

PD1

14

A2

32

A9

50

DQ24

68

PD2

15

A3

33

/RAS1

51

DQ9

69

PD3

16

A4

34

/RAS0

52

DQ25

70

PD4

17

A5

35

NC

53

DQ10

71

NC

18

A6

36

NC

54

DQ26

72

Vss

32Mbyte(8Mx32) 72-pin F/P Mode 2K Ref. SIMM Design 5V

Part No.

HMD8M32M16, HMD8M32M16G