HANBit
HMD8M36M24EG
32Mbyte(8Mx36) 72-pin EDO with Parity MODE 2K Ref. SIMM Design 5V
Part No. HMD8M36M24EG
GENERAL DESCRIPTION
The HMD8M36M24EG is a 8M x 36bit dynamic RAM high density memory module. The module consists of twenty four
CMOS 4M x 4bit DRAM 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.
FEATURES
PIN ASSIGNMENT
w Part Identification
PIN SYMBOL PIN
SYMBOL
DQ24
DQ7
PIN SYMBOL
HMD8M36M24E---- 2048 Cycles/32ms Ref. Solder
HMD8M36M24EG- 2048 Cycles/32ms Ref. Gold
w Access times : 50, 60ns
1
2
Vss
DQ0
DQ18
DQ1
DQ19
DQ2
DQ20
DQ3
DQ21
Vcc
NC
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
DQ9
DQ27
DQ10
DQ28
DQ11
DQ29
DQ12
DQ30
DQ13
DQ31
Vcc
3
DQ25
A7
w High-density 32MByte design
w Single + 5V ±0.5V power supply
w JEDEC standard PDpin and pinout
w EDO mode operation
4
5
A11
6
Vcc
7
A8
w TTL compatible inputs and outputs
w FR4-PCB design
8
A9
9
NC
10
11
12
13
14
15
16
17
18
19
20
NC
OPTIONS
w Timing
MARKING
DQ26
DQ8
A0
DQ32
DQ14
DQ33
DQ15
DQ34
DQ16
NC
50ns access
60ns access
w Packages
72-pin SIMM
-5
-6
A1
DQ17
DQ35
Vss
A2
A3
M
A4
/CAS0
/CAS2
/CAS3
/CAS1
/RAS0
A5
PRESENCE DETECT PINS
A6
A10
DQ4
PD1
Pin
50ns
NC
60ns
NC
PD2
PD1
PD2
PD3
PD4
21
DQ22
45
/RAS1
69
PD3
Vss
Vss
Vss
Vss
Vss
NC
22
23
24
DQ5
DQ23
DQ6
46
47
48
NC
/WE
NC
70
71
72
PD4
NC
Vss
SIMM TOP VIEW
PERFORMANCE RANGE
Speed
tRAC
50ns
60ns
tCAC
13ns
15ns
TRC
tHPC
26ns
30ns
5
6
90ns
110ns
URL:www.hbe.co.kr
REV.1.0 (March.2004)
- 1 -
HANBit Electronics Co.,Ltd.