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HMD8M32M16G-5 PDF预览

HMD8M32M16G-5

更新时间: 2024-11-19 03:28:39
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HANBIT /
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8页 78K
描述
32Mbyte(8Mx32) 72-pin F/P Mode 2K Ref. SIMM Design 5V

HMD8M32M16G-5 数据手册

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HANBit  
HMD8M32M16  
32Mbyte(8Mx32) 72-pin F/P Mode 2K Ref. SIMM Design 5V  
Part No. HMD8M32M16, HMD8M32M16G  
GENERAL DESCRIPTION  
The HMD8M32M16 is a 8M x 32 bit dynamic RAM high density memory module. The module consists of sixteen CMOS  
4M x 4bit DRAMs in 24-pin SOJ packages mounted on a 72-pin, double-sided, FR-4-printed circuit board. A 0.1 or  
0.22uF decoupling capacitor is mounted on the printed circuit board for each DRAM components. The module is a single  
In-line Memory Module with edge connections and is intended for mounting in to 72-pin edge connector sockets. 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 Part Identification  
PIN  
1
SYMBOL  
Vss  
PIN  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
SYMBOL  
A10  
PIN  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
SYMBOL  
NC  
PIN  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
SYMBOL  
DQ11  
DQ27  
DQ12  
DQ28  
Vcc  
HMD8M32M16--2048 Cycles/32ms Ref, Solder  
HMD8M32M16G--2048 Cycles/32ms Ref, Gold  
w Access times : 50, 60ns  
2
DQ0  
DQ16  
DQ1  
DQ17  
DQ2  
DQ18  
DQ3  
DQ19  
Vcc  
DQ4  
NC  
3
DQ20  
DQ5  
Vss  
w High-density 32MByte design  
w Single + 5V ±0.5V power supply  
w JEDEC standard pinout  
4
/CAS0  
/CAS2  
/CAS3  
/CAS1  
/RAS0  
/RAS1  
NC  
5
DQ21  
DQ6  
6
DQ29  
DQ13  
DQ30  
DQ14  
DQ31  
DQ15  
NC  
w FP(Fast Page) mode operation  
w TTL compatible inputs and outputs  
w FR4-PCB design  
7
DQ22  
DQ7  
8
9
DQ23  
A7  
10  
11  
12  
13  
14  
15  
16  
17  
18  
NC  
NC(A11) 47  
/W  
OPTIONS  
w Timing  
MARKING  
A0  
Vcc  
A8  
48  
49  
50  
51  
52  
53  
54  
NC  
A1  
DQ8  
PD1  
50ns access  
60ns access  
w Packages  
72-pin SIMM  
-5  
-6  
A2  
A9  
DQ24  
DQ9  
PD2  
A3  
/RAS1  
/RAS0  
NC  
PD3  
A4  
DQ25  
DQ10  
DQ26  
PD4  
M
A5  
NC  
A6  
NC  
Vss  
PERFORMANCE RANGE  
SIMM TOP VIEW  
SPEED  
tRAC  
50ns  
60ns  
tCAC  
13ns  
15ns  
tRC  
90ns  
110ns  
tPC  
-5  
-6  
35ns  
40ns  
Note: A11 is not used for HMD8M32M16  
PIN NAMES  
Pin Name  
A0-A10  
Function  
Pin Name  
Function  
Row Address Strobe  
Pin Name  
Vss  
Function  
Address Input(2K Ref)  
Address Input(4K Ref)  
Data In/Out  
/RAS0, /RAS1  
Ground  
A0-A11  
/CAS0 - /CAS3 Column Address Strobe  
PD1 - PD4 Presence Detect  
NC  
No Connection  
Power(+5V)  
DQ0-DQ31  
/W  
Vcc  
Read/Write Input  
URL:www.hbe.co.kr  
REV.1.0 (August.2002)  
HANBit Electronics Co.,Ltd.  
1

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