HMD4M32M2G Datasheet, PDF (1/7 Pages) Hanbit Electronics Co.,Ltd – 16Mbyte(4Mx32) 72-pin SIMM Fast Page Mode, 4K Refresh, 5V

HANBit
HMD4M32M2G
16Mbyte(4Mx32) 72-pin SIMM Fast Page Mode, 4K Refresh, 5V
Part No. HMD4M32M2, HMD4M32M2G
GENERAL DESCRIPTION
The HMD4M32M2 is a 4M x 32 bit dynamic RAM high-density memory module. The module consists of two CMOS 4M x
16 bit DRAMs in 50-pin TSOP packages mounted on a 72-pin. 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. All inputs and outputs are TTL-compatible.
FEATURES
w Part Identification
HMD4M32M2----4K Cycles/64ms Ref. Solder
HMD4M32M2G- 4K Cycles/64ms Ref. Gold
w Access times : 50, 60ns
w High-density 16MByte design
w Single +5V± 0.5V power supply
wJEDEC standard pinout
w FP Mode operation
w TTL compatible inputs and outputs
w FR4-PCB design
OPTIONS
MARKING
w Timing
50ns access
-5
60ns access
-6
w Packages
72-pin SIMM
M
PRESENCE DETECT PINS
Pin
50ns
60ns
PD1
Vss
Vss
PD2
NC
NC
PD3
Vss
NC
PD4
Vss
NC
PERFORMANCE RANGE
Speed
tRAC
tCAC
5
50ns
13ns
6
60ns
URL:www.hbe.co.kr
REV.1.0 (August.2002)
15ns
tRC
90ns
110ns
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
A7
52
DQ25
5
DQ17 29
A11
53
DQ10
6
DQ2
30
Vcc
54
DQ26
7
DQ18 31
A8
55
DQ11
8
DQ3
32
A9
56
DQ27
9
DQ19 33
NC
57
DQ12
10
Vcc
34
NC
58
DQ28
11
NC
35
NC
59
Vcc
12
A0
36
NC
60
DQ29
13
A1
37
NC
61
DQ13
14
A2
38
NC
62
DQ30
15
A3
39
Vss
63
DQ14
16
A4
40
/CAS0
64
DQ31
17
A5
41
/CAS2
65
DQ15
18
A6
42 /CAS3 66
NC
19
A10
43 /CAS1
67
PD1
20
DQ4
44
/RAS0
68
PD2
21 DQ20 45
NC
69
PD3
22
DQ5
46
NC
70
PD4
23 DQ21 47
/WE
71
NC
24
DQ6
48
NC
72
Vss
tHPC
26ns
30ns
-1-
HANBit Electronics Co.,Ltd.