HANBit

HMF1M32M8G

HANBit Electronics Co., Ltd.

REV.02(August,2002)

1

GENERAL DESCRIPTION

The HMF1M32M8G is a high-speed flash read only memory (FROM) module containing 1,048,576 words organized in a

x32bit configuration. The module consists of eight 512K x 8 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.

Eight chip enable inputs, (/CE_UU1, /CE_UM1, /CE_LM1, /CE_LL1, /CE_UU2, /CE_UM2, /CE_LM2, /CE_LL2) are used to

enable the module

’s 4 bytes 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 +5V DC power supply and all inputs and outputs are

TTL-compatible.

FEATURES

w Access time: 55, 70, 90 and 120ns

w High-density 4MByte design

w High-reliability, low-power design

w Single + 5V

± 0.5V 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 Sector erases architecture

w Sector group protection

w Temporary sector group unprotection

OPTIONS

MARKING

55ns access

-55

70ns access

-70

90ns access

-90

120ns access

-120

w Packages

72-pin SIMM

M

PIN

SYMBOL

PIN

SYMBOL

PIN

SYMBOL

1

Vss

25

Vcc

49

DQ17

2

A3

26

DQ8

50

DQ18

3

A2

27

DQ9

51

DQ22

4

A1

28

DQ10

52

DQ21

5

A0

29

/CE

_LM2

53

DQ20

6

Vcc

30

Vcc

54

DQ19

7

A11

31

/CE

_LM1

55

Vcc

8

/OE

32

DQ15

56

A15

9

A10

33

DQ14

57

A12

10

Vcc

34

DQ13

58

A7

11

/CE

_LL2

35

DQ12

59

Vcc

12

/CE

_LL1

36

DQ11

60

A8

13

DQ7

37

A18

61

A9

14

DQ0

38

A16

62

DQ24

15

DQ1

39

Vss

63

DQ25

16

DQ2

40

A6

64

DQ26

17

DQ6

41

Vcc

65

/CE

_UU2

18

DQ5

42

A5

66

/CE

_UU1

19

DQ4

43

A4

67

DQ31

20

DQ3

44

Vcc

68

DQ30

21

/WE

45

/CE

_UM2

69

DQ29

22

A17

46

/CE

_UM1

70

DQ28

23

A14

47

DQ23

71

DQ27

24

A13

48

DQ16

72

Vss

PIN ASSIGNMENT

FLASH-ROM MODULE 4MByte (1M x 32-Bit), 72pin-SIMM, 5V

Part No. HMF1M32M8G

72-PIN SIMM

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