HMF1M32M8P Datasheet, PDF (1/11 Pages) Hanbit Electronics Co.,Ltd – FLASH-ROM MODULE 4MByte (1M x 32-Bit), 72pin-SIMM, 5V

HANBit
HMF1M32M8P
FLASH-ROM MODULE 4MByte (1M x 32-Bit), 72pin-SIMM, 5V
Part No. HMF1M32M8P
GENERAL DESCRIPTION
The HMF1M32M8P 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
w Timing
55ns access
70ns access
90ns access
120ns access
w Packages
72-pin SIMM
MARKING
-55
-70
-90
-120
M
PIN ASSIGNMENT
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
11 /CE_LL2 35
12 /CE_LL1 36
13
DQ7
37
14
DQ0
38
15
DQ1
39
16
DQ2
40
17
DQ6
41
18
DQ5
42
19
DQ4
43
DQ13
DQ12
DQ11
A18
A16
Vss
A6
Vcc
A5
A4
58
A7
59
Vcc
60
A8
61
A9
62
DQ24
63
DQ25
64
DQ26
65 /CE_UU2
66 /CE_UU1
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.