參數(shù)資料
型號: CDP1851E
廠商: HARRIS SEMICONDUCTOR
元件分類: 微控制器/微處理器
英文描述: CMOS Programmable I/O Interface
中文描述: 20 I/O, PIA-GENERAL PURPOSE, PDIP40
文件頁數(shù): 11/14頁
文件大?。?/td> 56K
代理商: CDP1851E
4-15
Test Circuit and Waveforms
FIGURE 5. INTERRUPT SIGNAL PROPAGATION DELAY TIME TEST CIRCUIT AND WAVEFORMS
FIGURE 6. INPUT MODE TIMING WAVEFORMS
A
1k
B
1k
50pF
50pF
A INT
B INT
CDP1851
50%
50%
10%
50%
t
STINT
t
PINT
t
WINT
INPUT
SIGNAL
A, B
V
DD
t
HADOH
t
HATPB
t
ADA
VALID PORT ADDRESS
IO OR II
DATA BUS
RA1/RA0
WR/RE = (TPB)
RD/WE = (MRD)
I/O SPACE
RD/WE = (MWR)
WR/RE = (MRD)
MEMORY SPACE
CS
CLOCK = (TPA)
TPB
DATA-IN
STROBE
INT
RDY
t
STRDY
t
WST
t
STINT
t
DIST
t
HSTDI
t
PINT
t
TPRDY
t
WTPB
t
WCL
t
CSCL
t
HCSCL
t
WRCL
t
RWCL
CDP1851, CDP1851C
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