Datasheet

TL16C552A, TL16C552AM
DUAL ASYNCHRONOUS COMMUNICATIONS ELEMENT
WITH FIFO
SLLS189D – NOVEMBER 1994 – REVISED JANUARY 1999
16
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
IOW
(WR MCR)
RTS
, DTR
CTS, DSR, DCD
INT0, INT1,
1 INT, 2 INT
IOR
(RD MSR)
RI
t
pd9
t
pd9
t
pd10
t
pd11
t
pd10
t
pd12
50% 50%
50%50%
50% 50% 50% 50%
50%
50%
50%50%
Figure 14. Modem Control Timing Waveforms
ACK
BUSY
t
su7
STB
DATA
Valid
t
d10
t
h6
t
w8
t
d11
t
w7
t
d12
t
w6
50%
50%
50% 50%
50%50%
50% 50% 50%
Figure 15. Parallel Port Timing Waveforms