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HMF8M32M8A-70 PDF预览

HMF8M32M8A-70

更新时间: 2024-11-23 03:35:55
品牌 Logo 应用领域
HANBIT /
页数 文件大小 规格书
12页 454K
描述
FLASH-ROM MODULE 32MByte (8M x 32Bit), 72-Pin SIMM, 5V

HMF8M32M8A-70 数据手册

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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  
enable the modules 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  
PIN ASSIGNMENT  
w Part Identifications  
PIN SYMBOL PIN  
SYMBOL  
A20  
PIN SYMBOL  
HMF8M32M8A : 32Mbyte, 72-pin SIMM, Gold  
1
2
Vss  
A3  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
DQ17  
DQ18  
DQ22  
DQ21  
DQ20  
DQ19  
A19  
DQ8  
wAccess time : 55, 70, 90  
3
A2  
DQ9  
w High-density 32MByte design  
w High-reliability, low-power design  
4
A1  
DQ10  
/CE-LM2  
Vcc  
5
A0  
6
Vcc  
w Single + 5V 0.5V power supply  
±
7
A11  
/CE-LM1  
DQ15  
DQ14  
DQ13  
DQ12  
DQ11  
A18  
w Easy memory expansion  
8
/OE  
A15  
w All inputs and outputs are TTL-compatible  
w FR4-PCB design  
9
A10  
A12  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
/RESET  
/CE-LL2  
/CE-LL1  
DQ7  
DQ0  
DQ1  
DQ2  
DQ6  
DQ5  
DQ4  
A7  
Vcc  
w Low profile 72-pin SIMM  
A8  
w Minimum 100,000 write/erase cycle  
w Sectors erase architecture  
A9  
A16  
DQ24  
DQ25  
DQ26  
/CE-UU2  
/CE-UU1  
DQ31  
w Sector group protection  
Vss  
A6  
w Temporary sector group unprotection  
w The used device is Am29F032B or M29F032D  
A21  
A5  
A4  
OPTIONS  
w Timing  
MARKING  
20  
21  
22  
23  
24  
DQ3  
/WE  
A17  
A14  
A13  
44  
45  
46  
47  
48  
Vcc  
68  
69  
70  
71  
72  
DQ30  
DQ29  
DQ28  
DQ27  
Vss  
/CE-UM2  
/CE-UM1  
DQ23  
55ns access  
70ns access  
90ns access  
w Packages  
72-pin SIMM  
-55  
-70  
-90  
DQ16  
72-PIN SIMM  
TOP VIEW  
M
URL: www.hbe.co.kr  
REV.02(August,2002)  
HANBit Electronics Co., Ltd.  
1

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