Datasheet

TL16C552A, TL16C552AM
DUAL ASYNCHRONOUS COMMUNICATIONS ELEMENT
WITH FIFO
SLLS189D – NOVEMBER 1994 – REVISED JANUARY 1999
11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
Option
Jumpers
Data Bus
Address Bus
Control Bus
9-Pin D Connector
9-Pin D Connector
25-Pin D Connector
Serial
Channel 1
Buffers
Serial
Channel 2
Buffers
Parallel
Port
R/C
Network
Dual
ACE and
Printer
Port
TL16C552A
Figure 3. Basic Test Configuration
Valid
Valid
t
h1
t
su1
t
su2
t
h2
t
d1
t
d2
t
w4
t
pd1
t
pd1
t
dis
t
en
Valid Data
A2, A1, A0
CS0
, CS1, CS2
IOR
IOW
BDO
DB0–DB7
Active
Active
Active
50% 50%
50% 50%
50% 50%
50%
50% 50%
50%
or
Figure 4. Read Cycle Timing Waveforms