82C54_05 Datasheet, PDF (16/22 Pages) Intersil Corporation – CMOS Programmable Intervel Timer

Timing Waveforms
A0 - A1
CS
DATA BUS
WR
A0 - A1
CS
RD
DATA BUS
RD, WR
82C54
(9)
tAW
(10)
tSW
tWA (11)
VALID
(13)
tDW
tWD (14)
(12)
tWW
FIGURE 17. WRITE
tAR (1)
tRA (3)
(2)
tSR
(4)
tRR
(5)
(7)
tRD
(6)
tDF
tAD
VALID
FIGURE 18. READ
(8) (15)
tRV
FIGURE 19. RECOVERY
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