SIMM 30线内存条引脚定义图
SIMM 是 Single Inline Memory Module (单列直插) 的缩写，最高容量为 4MBx9，在无校验内存条中，QP 和 DP 引脚是空的，外观为：
|
引脚定义 |
|
Pin |
Name |
Description |
|---|---|---|
|
1 |
VCC |
+5 VDC |
|
2 |
/CAS |
Column Address Strobe |
|
3 |
DQ0 |
Data 0 |
|
4 |
A0 |
Address 0 |
|
5 |
A1 |
Address 1 |
|
6 |
DQ1 |
Data 1 |
|
7 |
A2 |
Address 2 |
|
8 |
A3 |
Address 3 |
|
9 |
GND |
Ground |
|
10 |
DQ2 |
Data 2 |
|
11 |
A4 |
Address 4 |
|
12 |
A5 |
Address 5 |
|
13 |
DQ3 |
Data 3 |
|
14 |
A6 |
Address 6 |
|
15 |
A7 |
Address 7 |
|
16 |
DQ4 |
Data 4 |
|
17 |
A8 |
Address 8 |
|
18 |
A9 |
Address 9 |
|
19 |
A10 |
Address 10 |
|
20 |
DQ5 |
Data 5 |
|
21 |
/WE |
Write Enable |
|
22 |
GND |
Ground |
|
23 |
DQ6 |
Data 6 |
|
24 |
A11 |
Address 11 |
|
25 |
DQ7 |
Data 7 |
|
26 |
QP |
Data Parity Out |
|
27 |
/RAS |
Row Address Strobe |
|
28 |
/CASP |
Something Parity ???? |
|
29 |
DP |
Data Parity In |
|
30 |
VCC |
+5 VDC |