HANBit
HMS12832M4G/Z4
SRAM MODULE 512KByte (128K x 32-Bit), 64PIN SIMM / ZIP
Part No. HMS12832M4G, HMS12832Z4
GENERAL DESCRIPTION
The HMS12832M4G/Z4 is a high-speed static random access memory (SRAM) module containing 131,072 words organized
in a x32-bit configuration. The module consists of four 128K x 8 SRAMs mounted on a 64-pin, single-sided, FR4-printed circuit
board.
PD0 and PD1 identify the module’s density allowing interchangeable use of alternate density, industry- standard modules. Four
chip enable inputs, (/CE1, /CE2, /CE3 and /CE4) are used to enable the module’s 4 bytes independently. Output enable(/OE)
and write enable(/WE) can set the memory input and output.
Data is written into the SRAM memory when write enable (/WE) and chip enable (/CE) inputs are both LOW.
accomplished when /WE remains HIGH and /CE and output enable (/OE) are LOW.
For reliability, this SRAM module is designed as multiple power and ground pin. All module components may be powered from
a single +5V DC power supply and all inputs and outputs are fully TTL-compatible.
Reading is
FEATURES
w
Access times : 10, 12, 15 and 20ns
w
High-density 512KByte design
w
High-reliability, high-speed design
w
Single + 5V
±0.5V
power supply
w
Easy memory expansion with /CE and
/OE functions
w
All inputs and outputs are TTL-compatible
w
Industry-standard pinout
w
FR4-PCB design
PIN
1
2
3
4
5
6
SYMBOL
Vss
NC
NC
DQ0
DQ8
DQ1
DQ9
DQ2
DQ10
DQ3
DQ11
Vcc
A0
A7
A1
A8
PIN
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
SYMBOL
A2
A9
DQ12
DQ4
DQ13
DQ5
DQ14
DQ6
DQ15
DQ7
Vss
/WE
A15
A14
/CE2
/CE1
PIN
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
SYMBOL
/CE4
/CE3
NC
A16
/OE
Vss
DQ24
DQ16
DQ25
DQ17
DQ26
DQ18
DQ27
DQ19
A3
A10
PIN
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
SYMBOL
A4
A11
A5
A12
Vcc
A13
A6
DQ20
DQ28
DQ21
DQ29
DQ22
DQ30
DQ23
DQ31
Vss
PIN ASSIGNMENT
OPTIONS MARKING
w
Timing
8ns access
10ns access
12ns access
15ns access
20ns access
w
Packages
64-pin SIMM
64-pin ZIP
M
Z
- 8
-10
-12
-15
-20
7
8
9
10
11
12
13
14
15
16
SIMM
TOP VIEW
URL: www.hbe.co.kr
Rev. 1.0 (September / 2002)
1
HANBit Electronics Co.,Ltd.
HANBIT [ HANBIT ELECTRONICS CO.,LTD ]
