HMF2M32M8G Datasheet, PDF (1/11 Pages) Hanbit Electronics Co.,Ltd – FLASH-ROM MODULE 8MByte (2M x 32-Bit), 72pin-SIMM

HANBit
HMF2M32M8G
FLASH-ROM MODULE 8MByte (2M x 32-Bit), 72pin-SIMM, 5V
Part No. HMF2M32M8G
GENERAL DESCRIPTION
The HMF2M32M8G is a high-speed flash read only memory (FROM) module containing 2,097,152 words organized in a
x32bit configuration. The module consists of eight 1M x 8 FROM mounted on a 72 -pin, double-sided, FR4-printed circuit
board.
The HMF2M32M8 is entirely pin and command set compatible with JEDEC standard 4M -bit E² PROMs. 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
PIN ASSIGNMENT
w Access time : 75, 90 and 120ns
w High-density 8MByte 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 Sectors erase architecture
w Sector group protection
w Temporary sector group unprotection
w The used device is Am29F080B
OPTIONS
w Timing
75ns access
90ns access
120ns access
w Packages
72-pin SIMM
MARKING
-75
-90
-120
M
PIN SYMBOL PIN SYMBOL PIN SYMBOL
1
Vss
25
NC
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
A19
8
/OE
32
DQ15
56
A15
9
A10
33
DQ14
57
A12
10 /RESET 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 /RY_BY 65 /CE_UU2
18
DQ5
42
A5
66 /CE_UU1
19
DQ4
43
A4
67
DQ31
20
DQ3
44
Vcc
68
DQ30
21
/W E
45 /CE_UM2 69
DQ29
22
A17
46 /CE_UM1 70
DQ28
23
A14
47
DQ23
71
DQ27
24
A13
48
DQ16
72
Vss
URL: www.hbe.co.kr
REV.02(August,2002)
72-PIN SIMM TOP VIEW
1
HANBit Electronics Co., Ltd.