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參數(shù)資料
| 型號(hào)： | MSM81C55-5 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | 2k-bit Static RAM (256 bytes) With Parallel I/O Ports And A Timer(擴(kuò)展CPU的RAM、定時(shí)器和I/O口) |
| 中文描述： | 的2K位靜態(tài)RAM（256字節(jié)）與并行I / O端口和一個(gè)計(jì)時(shí)器（擴(kuò)展的CPU的內(nèi)存，定時(shí)器和輸入/輸出口） |
| 文件頁數(shù)： | 2/19頁 |
| 文件大?。?/td> | 157K |
| 代理商： | MSM81C55-5 |
2/19
Semiconductor
MSM81C55-5RS/GS/JS
PIN CONFIGURATION (TOP VIEW)
40 pin Plastic DIP
44 pin Plastic QFP
16
17
15
14
13
PC
3
PC
4
TIMER IN
RESET
TIMER OUT
IO/
M
CE
RD
WR
ALE
AD
0
20
19
18
GND
PC
2
PC
1
PC
0
PB
7
PB
6
PB
5
PB
4
PB
3
PB
2
PB
1
PB
0
PA
7
PA
6
PA
5
PA
4
PA
3
PA
2
PA
1
PA
0
1
2
3
4
5
6
7
8
9
10
11
12
32
31
30
29
28
27
26
25
24
23
22
21
37
36
35
34
33
38
39
40
V
CC
AD
7
AD
6
AD
5
PC
5
AD
4
AD
3
AD
2
AD
1
39
38
37
36
35
34
33
32
PB
6
PB
5
PB
4
PB
3
PB
2
NC
PB
1
PB
0
PA
7
PA
6
PA
5
TIMER OUT
IO/
M
CE
RD
WR
NC
ALE
1
1
2
2
2
2
2
A
4
N
A
5
A
6
A
7
G
P
0
6
5
4
3
2
1
4
P
5
R
T
P
4
P
3
N
7
8
9
10
11
12
13
14
31
30
29
AD
0
AD
1
AD
2
AD
3
15
16
17
V
C
2
2
2
2
P
1
P
2
P
3
P
4
4
4
4
4
P
2
P
1
P
0
P
7
44 pin Plastic QFJ
33
32
31
30
29
28
27
26
PB
6
PB
5
PB
4
PB
3
PB
2
PB
1
PB
0
PA
7
PA
6
PA
5
PA
4
TIMEROUT
IO/
M
CE
RD
WR
ALE
AD
0
AD
1
AD
2
AD
3
NC
1
1
1
1
1
G
1
1
A
4
A
5
A
6
A
7
V
C
P
0
4
4
4
4
4
3
3
P
5
R
T
P
4
P
3
V
C
1
2
3
4
5
6
7
8
25
24
23
9
10
11
N
1
2
2
2
P
1
P
2
P
3
N
3
3
3
3
P
2
P
1
P
0
P
7
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PDF描述 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSM81C55-5GS | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:2048-Bit CMOS STATIC RAM WITH I/O PORTS AND TIMER |
| MSM81C55-5JS | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:2048-Bit CMOS STATIC RAM WITH I/O PORTS AND TIMER |
| MSM81C55-5RS | 制造商:ROHM Semiconductor 功能描述: 制造商:OK International 功能描述: |
| MSM82C37B-5GS | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:PROGRAMMABLE DMA CONTROLLER |
| MSM82C37B-5JS | 制造商:OK International 功能描述:4 CHANNEL(S), 5 MHZ, DMA CONTROLLER, PQCC44 |
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