HMF1M32M4GL Datasheet, PDF (1/11 Pages) Hanbit Electronics Co.,Ltd – FLASH-ROM MODULE 4MByte (1M x 32-Bit),72pin-SIMM, 5V

HANBit
HMF1M32M4GL
FLASH-ROM MODULE 4MByte (1M x 32-Bit),72pin-SIMM, 5V
Part No. HMF1M32M4GL
GENERAL DESCRIPTION
The HMF1M32M4GL is a high-speed flash read only memory (FROM) module containing 1,048,576 words organized in a
x32bit configuration. The module consists of four 1M x 8 FROM mounted on a 72 -pin, single-sided, FR4-printed circuit board.
The HMF1M32M4GL is entirely pin and command set compatible with JEDEC single-power-supply flash standard.
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’s 8bits 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 standb y 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 : 75, 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 erase architecture
w Sector group protection
w Temporary sector group unprotection
w The used device is AM29F080
OPTIONS
w Timing
75ns access
90ns access
120ns access
w Packages
72-pin SIMM
MARKING
-75
-90
-120
M
PIN ASSIGNMENT
PIN SYMBOL PIN SYMBOL PIN SYMBOL
1
Vss
25
DQ17
49 /BANK-E0
2
NC
26
DQ18
50
A18
3
DQ0
27
DQ19
51
A17
4
DQ1
28
DQ20
52
A16
5
DQ2
29
DQ21
53
A15
6
DQ3
30
Vcc
54
A14
7
DQ4
31
DQ22
55
A13
8
DQ5
32
DQ23
56
A12
9
DQ6
33
/WE2
57
A11
10
Vcc
34
NC
58
A10
11
DQ7
35
DQ24
59
Vcc
12
/WE0
36
DQ25
60
A9
13 RY-/BY 37
DQ26
61
A8
14
DQ8
38
DQ27
62
A7
15
DQ9
39
Vss
63
A6
16
DQ10
40
DQ28
64
A5
17
DQ11
41
DQ29
65
A4
18
DQ12
42
DQ30
66
A3
19
DQ13
43
DQ31
67
A2
20
DQ14
44
/WE3
68
A1
21
DQ15
45
NC
69
A0
22
/WE1
46
/Reset
70
NC
23
NC
47
A19
71
NC
24
DQ16
48
/OE
72
Vss
72-PIN SIMM
TOP VIEW
URL: www.hbe.co.kr
REV.02(August,2002)
1
HANBit Electronics Co., Ltd.