HMF2M32B4V Datasheet, PDF (1/12 Pages) List of Unclassifed Manufacturers – Flash-ROM Module 8MByte (2Mx32Bit), 72Pin-SO-DIMM, 3.3V

HANBit
HMF2M32B4V
Flash-ROM Module 8MByte (2Mx32Bit), 72Pin-SO-DIMM, 3.3V
Design
Part No. HMF2M32B4V
GENERAL DESCRIPTION
The HMF2M32B4V is a high-speed flash read only memory (FROM) module containing 4,194,304 words organized in a
x32bit configuration. The module consists of four 1M x 16 FROM mounted on a 72-pin SO-DIMM type, 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.
Output enable (/OE) and write enable (/WE) can set the memory input and output. The host system can detect a program or
erase operation is complete by observing the Ready Pin, or reading the DQ7(Data # Polling) and DQ6(Toggle) status bits.
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 + 3.0V DC power supply and all inputs and outputs are LVTTL-
compatible.
FEATURES
w Access time: 70, 80, 90, 120ns
w High-density 8MByte design
w High-reliability, low-power design
w Single + 3.0V ± 0.5V power supply
w All in/outputs are LVTTL-compatible
w FR4-PCB design
w Minimum 1,000,000 write/erase cycle
w Sector erases architecture
OPTIONS
w Timing
70ns access
80ns access
90ns access
120ns access
w Packages
72-pin SO-DIMM
MARKING
-70
-80
-90
-120
B
PIN ASSIGNMENT
PIN Symbol PIN Symbol PIN Symbol PIN Symbol
1
Vss
21 DQ15 41 DQ29 61
A8
2
/RESET
22
NC
(/CE_4L)
42
DQ30
62
A7
3
DQ0
23
NC
(/CE_3H)
43
DQ31
63
A6
4
DQ1 24 DQ16 44
NC
64
A5
5
DQ2
25
DQ17
45
NC
(/CE_4H)
65
A4
6
DQ3
26
DQ18
46
NC
(/CE_3H)
66
A3
7
DQ4 27 DQ19 47
A19
67
A2
8
DQ5 28 DQ20 48
/OE
68
A1
9
DQ6 29 DQ21 49
/WE
69
A0
10
Vcc
30
Vcc
50
A18
70
A20
11 DQ7 31 DQ22 51
A17
71
NC
12 /CE_1L 32 DQ23 52
A16
72
Vss
13 /CE_2L 33 /CE_1H 53
A15
14 DQ8 34 /CE_2H 54
A14
15 DQ9 35 DQ24 55
A13
16 DQ10 36 DQ25 56
A12
17 DQ11 37 DQ26 57
A11
18 DQ12 38 DQ27 58
A10
19 DQ13 39
Vss
59
Vcc
20 DQ14 40 DQ28 60
A9
URL :www.hbe.co.kr
REV.02(August,2002)
1
HANBit Electronics Co., Ltd.