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參數(shù)資料
| 型號(hào)： | CDP1871AE |
| 廠商： | HARRIS SEMICONDUCTOR |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | CMOS Keyboard Encoder |
| 中文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PDIP40 |
| 文件頁數(shù)： | 9/10頁 |
| 文件大?。?/td> | 56K |
| 代理商： | CDP1871AE |
4-74
FIGURE 3. CDP1871A DYNAMIC TIMING DIAGRAM (NON-REPEAT)
FIGURE 4. FIGURE 4. CDP1871A DYNAMIC TIMING DIAGRAM (REPEAT)
TPB
KEY
CLOSURE
DA
RPT
DEBOUNCE
D1-D11
CS
(NOTE)
BUS0-BUS7
PRESENT COUNT
R
N
C
X
t
DAL
t
CC
t
CWL
t
CWH
R
X
C
X
VALID
t
CDV
t
CDH
t
CD1
NEXT COUNT
t
DAH
OPEN
CLOSED
NOTE: CS = CS1
CS2
CS3
CS4
CS1, CS2, CS3 = (CPU N-LINES)
CS4 (MRD) is High for CPU Input Instruction
TPB
KEY
DEPRESSED
DA
RPT
DEBOUNCE
D1-D11
CS
(NOTE)
BUS0-BUS7
PRESENT COUNT
t
DAH
t
RPL
R
X
C
X
VALID
t
CDV
t
CDH
NEXT COUNT
OPEN
CLOSED
t
RPH
NOTE: CS = CS1
CS2
CS3
CS4
CS1, CS2, CS3 = (CPU N-LINES)
CS4 (MRD) is High for CPU Input Instruction
CDP1871A, CDP1871AC
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| CDP1872 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:High-Speed 8-Bit Input and Output Ports |
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| CDP1872CE | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| CDP1872CE WAF | 制造商:Harris Corporation 功能描述: |
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