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HANBit

HMF2M32M4VGL

Flash-ROM Module 8MByte (2Mx32Bit), 72Pin-SIMM, 3.3V Design

Part No. HMF2M32M4VGL

GENERAL DESCRIPTION

The HMF2M32M4VGL is a high-speed flash read only memory (FROM) module containing 2,097,152 words organized in a

x32bit configuration. The module consists of four 2M x 8bit FROM mounted on a 72 -pin, 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.

Four chip enable inputs, (/WE0, /WE1, /WE2, /WE3) are used to enable the module鈥檚 8 bits independently. Output enable

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

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 + 3.3V DC power supply and all inputs and outputs are TTL-

compatible.

FEATURES

w

Access time : 70, 80, 90, 120ns

w

High-density 8MByte design

w

High-reliability, low-power design

w

Single + 3.3V

鹵

0.3V power supply

w

Easy memory expansion

w

All inputs and outputs are TTL-compatible

w

FR4-PCB design

w

Low profile 72-pin SIMM

w

Minimum 1,000,000 write/erase cycle

w

Sectors erase architecture

w

Sector group protection

w

Temporary sector group unprotection

PIN

1

2

3

4

5

6

7

8

9

10

11

12

13

Symbol

Vss

NC

DQ0

DQ1

DQ2

DQ3

DQ4

DQ5

DQ6

Vcc

DQ7

/WE0

/RY_BY

DQ8

DQ9

DQ10

DQ11

DQ12

DQ13

DQ14

DQ15

/WE1

NC

DQ16

PIN ASSIGNMENT

PIN

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

Symbol

DQ17

DQ18

DQ19

DQ20

DQ21

Vcc

DQ22

DQ23

/WE2

NC

DQ24

DQ25

DQ26

DQ27

Vss

DQ28

DQ29

DQ30

DQ31

/WE3

NC

/RESET

A2

/OE

PIN

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

Symbol

/BANKE0

A3

A4

A5

A6

A7

A8

A9

A10

A11

Vcc

A12

A13

A14

A15

A16

A17

A18

A19

A20

A0

A1

NC

Vss

OPTIONS

w

Timing

70ns access

80ns access

90ns access

120ns access

w

Packages

72-pin SIMM

MARKING

-70

-80

-90

-120

14

15

16

17

18

19

20

21

M

22

23

24

URL :

www.hbe.co.kr

REV,02(August,2002)

1

HANBit Electronics Co., Ltd.

next

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