TL16C450 Datasheet, PDF (14/25 Pages) Texas Instruments – ASYNCHRONOUS COMMUNICATIONS ELEMENT

TL16C450
ASYNCHRONOUS COMMUNICATIONS ELEMENT
SLLS037B – MARCH 1988 – REVISED MARCH 1996
APPLICATION INFORMATION
TL16C450
XTAL1 ¹⁶
A16 – A23
CPU
ADS
RSI/ABT
AD0 – AD15
PHI1 PHI2
A16 – A23
Address
Decoder
12
CS0
13
CS1
14
CS2
Buffer
25
ADS
35
AD0 –
AD7
MR
A0 – A2
D0 – D7
XTAL2 ¹⁷
BAUDOUT ¹⁵
9
RCLK
33
DTR
RTS ³²
OUT1 ³⁴
OUT2 ³¹
RI ³⁹
38
DCD
37
DSR
CTS ³⁶
Alternate
Xtal Control
20
1
5V
8
6
5
PHI1 PHI2
TCU
ADS RSTO
RO
WR
21
DISTR
18
DOSTR
AD0 – AD15
22
DISTR
19
DOSTR
11
SOUT
10
SIN
INTRPT ³⁰
CSOUT ²⁴
DDIS ²³
NC ²⁹
20
GND
(VSS)
40
5V
(VCC)
Figure 9. Typical TL16C450 Connection to a CPU
2
3
7
1
EIA-232-D
Connector
14
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