HMF51232M4G Datasheet, PDF (1/11 Pages) Hanbit Electronics Co.,Ltd – FLASH-ROM MODULE 2MByte (512K x 32-Bit)

HANBit
HMF51232M4G
FLASH-ROM MODULE 2MByte (512K x 32-Bit)
Part No. HMF51232M4G
GENERAL DESCRIPTION
The HMF51232M4G is a high-speed flash read only memory (FROM) module containing 524,288 words organized in a x32bit
configuration. The module consists of four 512Kx 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.
Four chip enable inputs, (/CE_UU1, /CE_UM1, /CE_LM1, /CE_LL1) 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 2MByte design
w High-reliability, low-power design
w Single + 5V ± 0.5V power supply
w Easy memory expansion
wAll 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
w Part Identification
HMF51232M4G: Gold Plate Lead
OPTIONS
w Timing
55ns access
70ns access
90ns access
120ns access
w Package
72-pin SIMM
MARKING
- 55
- 70
- 90
- 120
M
FUNCTIONAL BLOCK DIAGRAM
URL: www.hbe.co.kr
REV.02(August,2002)
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
NC
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
NC
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
NC
18
DQ5
42
A5
66 /CE_UU1
19
DQ4
43
A4
67
DQ31
20
DQ3
44
Vcc
68
DQ30
21
/WE
45
NC
69
DQ29
22
A17
46 /CE_UM1 70
DQ28
23
A14
47
DQ23
71
DQ27
24
A13
48
DQ16
72
Vss
72-PIN SIMM TOP VIEW
1
HANBit Electronics Co., Ltd.