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HANBit

HMF2M32B4V

Flash-ROM Module 8MByte (2Mx32Bit), 72Pin-SO-DIMM, 3.3V

Design

Part No. HMF2M32B4V

GENERAL DESCRIPTION

The HMF2M32B4V is a high-speed flash read only memory (FROM) module containing 4,194,304 words organized in a

x32bit configuration. The module consists of four 1M x 16 FROM mounted on a 72-pin SO-DIMM type, single - sided, FR4-

printed circuit board.

Commands are written to the command register using standard microprocessor write timings.

Register contents serve as input to an internal state-machine, which controls the erase and programming circuitry. Write

cycles also internally latch addresses and data needed for the programming and erase operations. Reading data out of the

device is similar to reading from 12.0V flash or EPROM devices.

Output enable (/OE) and write enable (/WE) can set the memory input and output. The host system can detect a program or

erase operation is complete by observing the Ready Pin, or reading the DQ7(Data # Polling) and DQ6(Toggle) status bits.

When FROM module is disable condition the module is becoming power standby mode, system designer can get low-power

design. All module components may be powered from a single + 3.0V DC power supply and all inputs and outputs are LVTTL-

compatible.

FEATURES

w

Access time: 70, 80, 90, 120ns

w

High-density 8MByte design

w

High-reliability, low-power design

w

Single + 3.0V

鹵

0.5V power supply

w

All in/outputs are LVTTL-compatible

w

FR4-PCB design

w

Minimum 1,000,000 write/erase cycle

w

Sector erases architecture

PIN

1

2

3

4

5

6

7

Symbol

Vss

/RESET

DQ0

DQ1

DQ2

DQ3

DQ4

DQ5

DQ6

Vcc

DQ7

/CE_1L

/CE_2L

DQ8

DQ9

DQ10

DQ11

DQ12

DQ13

DQ14

PIN

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

PIN ASSIGNMENT

Symbol

DQ15

NC

(/CE_4L)

NC

(/CE_3H)

DQ16

DQ17

DQ18

DQ19

DQ20

DQ21

Vcc

DQ22

DQ23

/CE_1H

/CE_2H

DQ24

DQ25

DQ26

DQ27

Vss

DQ28

PIN

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

Symbol

DQ29

DQ30

DQ31

NC

NC

(/CE_4H)

NC

(/CE_3H)

A19

/OE

/WE

A18

A17

A16

A15

A14

A13

A12

A11

A10

Vcc

A9

PIN

61

62

63

64

65

66

67

68

69

70

71

72

Symbol

A8

A7

A6

A5

A4

A3

A2

A1

A0

A20

NC

Vss

OPTIONS

w

Timing

70ns access

80ns access

90ns access

120ns access

w

Packages

72-pin SO-DIMM

MARKING

-70

-80

-90

-120

8

9

10

11

12

13

14

B

15

16

17

18

19

20

URL :www.hbe.co.kr

REV.02(August,2002)

1

HANBit Electronics Co., Ltd.

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