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HMS12832M4-20 PDF预览

HMS12832M4-20

更新时间: 2024-11-11 03:42:19
品牌 Logo 应用领域
HANBIT 静态存储器
页数 文件大小 规格书
9页 196K
描述
SRAM MODULE 512KByte (128K x 32-Bit)

HMS12832M4-20 数据手册

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HANBit  
HMS12832M4  
H A N  
SRAM MODULE 512KByte (128K x 32-Bit)  
B I T  
HMS12832M4  
Part No.  
GENERAL DESCRIPTION  
The HMS12832M4 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.  
Reading is 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.  
PIN ASSIGNMENT  
FEATURES  
Vss  
PD0  
PD1  
DQ0  
DQ8  
DQ1  
DQ9  
DQ2  
DQ10  
DQ3  
DQ11  
Vcc  
1
/ CE4 33  
/ CE3 34  
NC 35  
2
3
Access times : 12, 15 and 20ns  
High-density 512KByte design  
High-reliability, high-speed design  
Single + 5V ±0.5V power supply  
Easy memory expansion with /CE and /OE functions  
All inputs and outputs are TTL-compatible  
Industry-standard pinout  
4
A16 36  
5
/ OE 37  
Vss 38  
6
7
DQ24 39  
DQ16 40  
DQ25 41  
DQ17 42  
DQ26 43  
DQ18 44  
DQ27 45  
DQ19 46  
A3 47  
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
A0  
A7  
FR4-PCB design  
A1  
A8  
A10 48  
A2  
A4 49  
OPTIONS  
MARKING  
A9  
A11 50  
DQ12  
DQ4  
DQ13  
DQ5  
DQ14  
DQ6  
DQ15  
DQ7  
Vss  
A5 51  
A12 52  
Timing  
Vcc 53  
8ns access  
10ns access  
12ns access  
15ns access  
20ns access  
Packages  
- 8  
-10  
-12  
-15  
-20  
A13 54  
A6 55  
DQ20 56  
DQ28 57  
DQ21 58  
DQ29 59  
DQ22 60  
DQ30 61  
DQ23 62  
DQ31 63  
Vss 64  
/ WE  
A15  
A14  
64-pin SIMM  
M
/ CE2  
/ CE1  
SIMM  
TOP VIEW  
PD0 = Open  
PD1 = Open  
1
HANBit Electronics Co.,Ltd.  

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