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DS2251T(1995) 데이터 시트보기 (PDF) - Dallas Semiconductor -> Maxim Integrated
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DS2251T
(Rev.:1995)
128K Soft Microcontroller Module
Dallas Semiconductor -> Maxim Integrated
DS2251T Datasheet PDF : 19 Pages
First
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19
EXPANDED PROGRAM MEMORY READ CYCLE
2
ALE
PSEN
6
3
4
7
5
8
13
11
10
9
PORT 0
A7–A0
12
INSTR IN
PORT 2
A15–A8
EXPANDED DATA MEMORY READ CYCLE
27
ALE
DS2251T
A7–A0
A15–A8
PSEN
RD
PORT 0
PORT 2
19
21
14
16
3
4
26
A7–A0
(Rn OR DPL)
22
20
18
17
DATA IN
P2.7–P2.0 OR A15–A8 FROM DPH
A7–A0
(PCL)
INSTR
IN
A15–A8 FROM PCH
121395 11/19
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