HMD4M32M8GL Datasheet, PDF (1/9 Pages) Hanbit Electronics Co.,Ltd – 16Mbyte(4Mx32) Fast Page Mode, 4K Refresh 72Pin SIMM

HANBit
HMD4M32M8GL
16Mbyte(4Mx32) Fast Page Mode, 4K Refresh 72Pin SIMM
Part No. HMD4M32M8GL
GENERAL DESCRIPTION
The HMD4M32M8GL is a 4M x 32bit dynamic RAM high-density memory module. The module consists of eight 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.
FEATURES
w Part Identification
HMD4M32M8GL- 4,096 Cycles/64ms Ref . Gold
w Access times : 50, 60ns
w High-density 16MByte design
w Single + 5V ±0.5V power supply
w JEDEC standard pinout
w FP(Fast Page) mode operation
w TTL compatible inputs and outputs
w FR4-PCB design
OPTIONS
w Timing
50ns access
60ns access
w Packages
72-pin SIMM
MARKING
-5
-6
M
PIN CONFIGURATION DESCRIPTION
Pin Name
A0 – A11
A0 – A10
FUNCTION
Address Input(4K Ref.)
Address Input(2K Ref.)
DQ0-31
Data In/Out
/WE0-/WE3
Read/Write Input
/OE
Data Output Enable
/CAS
Column Address Strobe
/RAS
Row Address Strobe
BD_IN
SIZE
Board Insertion Signal
Size Indentification
Vcc/ Vss
Power and Ground
NC
No Connection
URL: www.hbe.co.kr
REV.1.0. (August. 2002)
PIN ASSIGNMENT
PIN SYMBOL PIN SYMBOL PIN SYMBOL
1
Vss
25
DQ22
49
DQ8
2
DQ0
26
DQ7
50
DQ24
3
DQ16
27
DQ23
51
DQ9
4
DQ1
28
A8
52
DQ25
5
DQ17
29
A10
53
DQ10
6
DQ2
30
Vcc
54
DQ26
7
DQ18
31
/WE2
55
DQ11
8
DQ3
32
NC
56
DQ27
9
DQ19
33
Vss
57
DQ12
10
Vcc
34
/RAS
58
DQ28
11
/WE0
35
Vcc
59
/WE3
12
A0
36
NC
60
DQ29
13
A1
37
NC
61
DQ13
14
A2
38
/OE0
62
DQ30
15
A3
39
Vss
63
DQ14
16
A4
40
/CAS
64
DQ31
17
A5
41
Vcc
65
DQ15
18
A6
42
NC
66
Vss
19
A7
43
NC
67
NC
20
DQ4
44
NC
68
NC
21
DQ20
45
A9
22
DQ5
46
A11
69
BD_IN
70
NC
23
DQ21
47
/WE1
71
SIZE
24
DQ6
48
Vcc
72
Vss
1
HANBit Electronics Co.,Ltd.