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HMF51232M4Y-90 PDF预览

HMF51232M4Y-90

更新时间: 2024-11-19 03:12:35
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HANBIT /
页数 文件大小 规格书
11页 417K
描述
FLASH-ROM MODULE 2MByte (512K x 32-Bit)

HMF51232M4Y-90 数据手册

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HANBit  
HMF51232M4Y  
FLASH-ROM MODULE 2MByte (512K x 32-Bit)  
Part No. HMF51232M4Y  
GENERAL DESCRIPTION  
The HMF51232M4Y 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_UU2, /CE_UM2, /CE_LM2, /CE_LL2) are used to enable the modules 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.  
PIN ASSIGNMENT  
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  
PIN SYMBOL PIN  
SYMBOL  
PIN SYMBOL  
1
2
Vss  
A3  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
Vcc  
DQ8  
DQ9  
DQ10  
/CE_LM2  
Vcc  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
DQ17  
DQ18  
DQ22  
DQ21  
DQ20  
DQ19  
Vcc  
3
A2  
4
A1  
wAll inputs and outputs are TTL-  
compatible  
5
A0  
6
Vcc  
w FR4-PCB design  
7
A11  
/OE  
A10  
Vcc  
NC  
w Low profile 72-pin SIMM  
8
DQ15  
DQ14  
DQ13  
DQ12  
DQ11  
A18  
A15  
w Minimum 1,000,000 write/erase cycle  
w Sector erases architecture  
w Sector group protection  
9
A12  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
A7  
Vcc  
/CE_LL2  
NC  
A8  
w Temporary sector group unprotection  
DQ7  
DQ0  
DQ1  
DQ2  
DQ6  
DQ5  
DQ4  
DQ3  
/WE  
A17  
A14  
A13  
A9  
A16  
DQ24  
DQ25  
DQ26  
/CE_UU2  
NC  
Vss  
OPTIONS  
w Timing  
MARKING  
A6  
Vcc  
A5  
55ns access  
70ns access  
90ns access  
120ns access  
w Package  
- 55  
- 70  
A4  
DQ31  
DQ30  
DQ29  
DQ28  
DQ27  
Vss  
Vcc  
- 90  
/CE_UM2  
NC  
- 120  
DQ23  
DQ16  
72-pin SIMM  
M
72-PIN SIMM  
TOP VIEW  
FUNCTIONAL BLOCK DIAGRAM  
1
URL: www.hbe.co.kr  
REV.02(August,2002)  
HANBit Electronics Co., Ltd.  

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