Datasheet

TL16C451, TL16C452
ASYNCHRONOUS COMMUNICATIONS ELEMENTS
SLLS053C – MAY 1989 – REVISED AUGUST 1999
12
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
RI
IOR (RD MSR)
(MODEM)
INTRPT
CTS
, DSR, RLSD
RTS, DTR
IOW (WR MCR)
t
d15
t
d15
t
d16
t
d17
t
d16
90% 90%
90%
10%
10%
90%
50% 50%
50%
90%
Figure 6. Modem Control Timing Waveforms
INT2
ACK
LPTOE
PD0 – PD7
SLIN
, AFD,
STB
, INIT
IOW
t
d18
t
d19
t
d20
t
d21
t
d21
50%
50%
10%
10%
10%
10%
90%
90%
90%
10%
90%
50%
Figure 7. Parallel Port Timing Waveforms