HANBit
HMD1M32M2EG
4Mbyte(1Mx32) EDO Mode, 1K Refresh, 72Pin SIMM, 5V Design
Part No. HMD1M32M2EG
DESCRIPTION
The HMD1M32M2EG is an 1M x 32 bits Dynamic RAM MODULE which is assembled 2 pieces of 1M x 16bit DRAMs in
42 pin SOJ package on single sides the printed circuit board with decoupling capacitors. The HMD1M32M2EG is
optimized for application to the systems, which are required high density and large capacity such as main memory of the
computers and an image memory systems, and to the others, which are, requested compact size.
The HMD1M32M2G provides common data and outputs.
Features
w
Part Indentification
-
HMD1M32M2EG
–
Gold plate Lead
w
72 pins Single In-Line Package
w
EDO Mode Capability
w
Single +5V± 0.5V power supply
w
Fast Access Time & Cycle Time
TRAC
HMD1M32M2EG-45
HMD1M32M2EG-50
HMD1M32M2EG-60
w
Low Power
Active: 1,870/1,650/1,430 mW(MAX)
Standby: 11mW(CMOS level : MAX)
w
/RAS Only Refresh, /CAS before /RAS Refresh,
Hidden Refresh Capability
w
All inputs and outputs TTL Compatible
w
1,024 Refresh Cycles/16ms
45
50
60
tCAC
13
15
17
tRC
69
84
104
tHPC
16
20
25
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
FUNCTION
Address Inputs
Data Input/Output
Row Address Strobe
Column Address Strobe
Read/Write Enable
PIN ASSIGNMENT
SYMBOL
Vss
DQ0
DQ16
DQ1
DQ17
DQ2
DQ18
DQ3
DQ19
Vcc
NC
A0
A1
A2
A3
A4
A5
A6
NC
DQ4
DQ20
DQ5
DQ21
DQ6
PIN
PD1
–
PD4
Vcc
Vss
NC
-
PIN
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
SYMBOL
DQ22
DQ7
DQ23
A7
NC
Vcc
A8
A9
NC
/RAS2
NC
NC
NC
NC
Vss
/CAS0
/CAS2
/CAS3
/CAS1
/RAS0
NC
NC
/WE
NC
PIN
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
FUNCTION
Presence Detect
Power (+5V)
Ground
No Connection
-
HANBiT Electronics Co., Ltd
.
SYMBOL
DQ8
DQ24
DQ9
DQ25
DQ10
DQ26
DQ11
DQ27
DQ12
DQ28
Vcc
DQ29
DQ13
DQ30
DQ14
DQ31
DQ15
NC
PD1
PD2
PD3
PD4
NC
Vss
PIN DESCRIPTION
Pin
A0
–
A9
DQ0
–
DQ31
/RAS0, /RAS2
/CAS0 - /CAS3
/WE
URL:www.hbe.co.kr
REV. 1.0 (August. 2002)
-1-
HANBIT [ HANBIT ELECTRONICS CO.,LTD ]
