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PDF HMF8M32M8A Data sheet ( Hoja de datos )
| Número de pieza | HMF8M32M8A | |
| Descripción | FLASH-ROM MODULE | |
| Fabricantes | Hanbit Electronics | |
| Logotipo |  |
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HANBit
HMF8M32M8A
FLASH-ROM MODULE 32MByte (8M x 32Bit), 72-Pin SIMM, 5V
Part No. HMF8M32M8A
GENERAL DESCRIPTION
The HMF8M32M8A is a high-speed flash read only memory (FROM) module containing 16,777,216 words organized in a
x32bit configuration. The module consists of eight 4M x 8bit FROM mounted on a 72-pin, double-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
www.DataSheet4U.ecnoamble the module’s 4 bytes independently. Outputs 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 Part Identifications
PIN ASSIGNMENT
HMF8M32M8A : 32Mbyte, 72-pin SIMM, Gold
wAccess time : 55, 70, 90
w High-density 32MByte design
w High-reliability, low-power design
PIN SYMBOL PIN SYMBOL PIN SYMBOL
1 Vss 25 A20 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
w Single + 5V ± 0.5V power supply
w Easy memory expansion
w All inputs and outputs are TTL-compatible
w FR4-PCB design
6 Vcc 30
7 A11 31
8 /OE 32
9 A10 33
10 /RESET 34
Vcc
/CE-LM1
DQ15
DQ14
DQ13
54
55
56
57
58
DQ19
A19
A15
A12
A7
w Low profile 72-pin SIMM
w Minimum 100,000 write/erase cycle
w Sectors erase architecture
w Sector group protection
w Temporary sector group unprotection
w The used device is Am29F032B or M29F032D
OPTIONS
w Timing
MARKING
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 A21 65 /CE-UU2
18 DQ5 42 A5 66 /CE-UU1
19 DQ4 43 A4 67 DQ31
20 DQ3 44 Vcc 68 DQ30
21 /WE 45 /CE-UM2 69 DQ29
55ns access
70ns access
90ns access
-55
-70
-90
22
A17
46 /CE-UM1 70
DQ28
23 A14 47 DQ23 71 DQ27
24 A13 48 DQ16 72
Vss
w Packages
72-pin SIMM
M
72-PIN SIMM
TOP VIEW
URL: www.hbe.co.kr
REV.02(August,2002)
HANBit Electronics Co., Ltd.
1
1 page  
HANBit
AC CHARACTERISTICS
u Read Only Operations Characteristics
PARAMETER
SYMBOLS
JEDEC STANDARD
DESCRIPTION
TEST SETUP
tAVAV
tRC Read Cycle Time
Min
tAVQV
tACC
Address to Output Delay
/CE = VIL
/OE = VIL
Max
tELQV
tCE Chip Enable to Output Delay
/OE = VIL
Max
tGLQV
www.DataSheet4U.com
tEHQZ
tOE Chip Enable to Output Delay
tDF Chip Enable to Output High-Z
Max
Max
tGHQZ
tDF Output Enable to Output High-Z
Max
tAXQX
Output Hold Time From Addresses,
tQH
/CE or /OE, Whichever Occurs First
Min
HMF8M32M8A
SPEED OPTIONS
-55 -70 -90
55 70 90
UNIT
ns
55 70 90 ns
55 70 90 ns
30 40 40 ns
18 20 20 ns
18 20 20 ns
0 0 0 ns
URL: www.hbe.co.kr
REV.02(August,2002)
HANBit Electronics Co., Ltd.
5
5 Page 
HANBit
u SECTOR PROTECT UNPROTECT TIMEING DIAGRAM
HMF8M32M8A
www.DataSheet4U.com
u ALTERNATE CE# CONTROLLED WRITE OPERATING TIMINGS
URL: www.hbe.co.kr
REV.02(August,2002)
HANBit Electronics Co., Ltd.
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet HMF8M32M8A.PDF ] | |
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