HMD8M32M4G Datasheet, PDF (1/7 Pages) Hanbit Electronics Co.,Ltd – 32Mbyte(8Mx32) 72-pin SIMM, FP Mode, 4K Ref. 5V

HANBit
HMD8M32M4G
32Mbyte(8Mx32) 72-pin SIMM, FP Mode, 4K Ref. 5V
Part No. HMD8M32M4, HMD8M32M4G
GENERAL DESCRIPTION
The HMD8M32M4 is a 8M x 32bit dynamic RAM high density memory module. The module consists of four CMOS 4M x
16 bit DRAMs in 50-pin TSOP packages mounted on a 72-pin, double-sided, FR-4-printed circuit board. A 0.1uF 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
HMD8M32M4----4K Cycles/64ms Ref, Solder
HMD8M32M4G- 4K Cycles/64ms Ref, Gold
w Access times : 50, 60ns
w High-density 32MByte design
w Single +5V ±0.5V power supply
w JEDEC Standard pinout
w Fast Page mode operation
w TTL compatible inputs and outputs
w FR4-PCB design
OPTIONS
w Timing
50ns access
60ns access
MARKING
-5
-6
w Packages
72-pin SIMM
M
PRESENCE DETECT PINS
Pin
50ns
PD1
NC
PD2
Vss
PD3
Vss
PD4
Vss
PERFORMANCE RANGE
Speed
tRAC
tCAC
5
50ns
13ns
6
60ns
15ns
60ns
NC
Vss
NC
NC
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 /RAS1 69
PD3
22
DQ5
46
NC
70
PD4
23 DQ21 47
/WE
71
NC
24
DQ6
48
NC
72
Vss
URL:www.hbe.co.kr
REV.1.0 (August.2002)
-1-
HANBit Electronics Co.,Ltd.