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STARTECH - UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER

Numéro de référence ST16C450
Description UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER
Fabricant STARTECH 
Logo STARTECH 





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ST16C450 fiche technique
STARTECH
ST16C450
An Company
Printed June 19, 1996
UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER
DESCRIPTION
The ST16C450 is a universal asynchronous receiver
and transmitter. A programmable baud rate genera-
tor is provided to select transmit and receive clock
rates from 50Hz to 1.5 MHz.
The ST16C450 is an improved version of the
NS16C450 UART with higher operating speed and
lower access time. The ST16C450 on board status
registers provides the error conditions, type and
status of the transfer operation being performed.
Included is complete MODEM control capability, and
a processor interrupt system that may be software
tailored to the user’s requirements. The ST16C450
provides internal loop-back capability for on board
diagnostic testing.
The ST16C450 is fabricated in an advanced 1.2m
CMOS process to achieve low drain power and high
speed requirements.
PLCC Package
D5 7
D6 8
D7 9
RCLK 10
RX 11
N.C. 12
TX 13
CS0 14
CS1 15
CS2* 16
BAUDOUT* 17
ST16C450CJ44
39 RESET
38 OP1*
37 DTR*
36 RTS*
35 OP2*
34 N.C.
33 INT
32 N.C.
31 A0
30 A1
29 A2
Plastic-DIP Package
FEATURES
· Pin to pin and functional compatible to
NS16450,VL16C450,WD16C450
· Modem control signals (CTS*, RTS*, DSR*, DTR*,
RI*, CD*)
· Programmable character lengths (5, 6, 7, 8)
· Even, odd, or no parity bit generation and detection
· Status report register
· Independent transmit and receive control
· TTL compatible inputs, outputs
· 460.8 kHz transmit/receive operation with 7.372
MHz crystal or external clock source
ORDERING INFORMATION
Part number
Package
Operating temperature
ST16C450CP40 Plastic-DIP 0° C to + 70° C
ST16C450CJ44 PLCC
0° C to + 70° C
ST16C450CQ48 TQFP
0° C to + 70° C
* Industrial operating range are available.
Rev. 2.0
3-37
D0 1
D1 2
D2 3
D3 4
D4 5
D5 6
D6 7
D7 8
RCLK 9
RX 10
TX 11
CS0 12
CS1 13
CS2* 14
BAUDOUT* 15
XTAL1 16
XTAL2 17
IOW* 18
IOW 19
GND 20
40 VCC
39 RI*
38 CD*
37 DSR*
36 CTS*
35 RESET
34 OP1*
33 DTR*
32 RTS*
31 OP2*
30 INT
29 N.C.
28 A0
27 A1
26 A2
25 AS*
24 CSOUT
23 DDIS*
22 IOR
21 IOR*

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