參數(shù)資料
型號(hào): 82C55A
廠商: Harris Corporation
英文描述: CMOS Programmable Peripheral Interface
中文描述: CMOS可編程外設(shè)接口
文件頁(yè)數(shù): 19/26頁(yè)
文件大?。?/td> 234K
代理商: 82C55A
19
Timing Waveforms
FIGURE 25. MODE 0 (BASIC INPUT)
FIGURE 26. MODE 0 (BASIC OUTPUT)
FIGURE 27. MODE 1 (STROBED INPUT)
tRA (2)
tHR (14)
tRR (3)
tIR (13)
tAR (1)
tRD (4)
tDF (5)
RD
INPUT
CS, A1, A0
D7-D0
tAW (7)
tWA (8)
tWS (12)
tWW (9)
tWD (11)
tDW
(10)
WR
D7-D0
CS, A1, A0
OUTPUT
tST (16)
STB
INTR
RD
INPUT FROM
PERIPHERAL
IBF
tSIB
(23)
tSIT
(26)
tPH
(18)
tPS (17)
tRIT
(25)
tRIB (24)
82C55A
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