IMP16C552 Datasheet, PDF (1/34 Pages) IMP, Inc – Dual Universal Asynchronous Receiver/Transmitter (UART) with 16-BYTE FIFO & Parallel Printer Port

IMP16C552
Data Communications
Dual Universal Asynchronous
Receiver/Transmitter (UART)
. _{with 16-BYTE FIFO & Parallel Printer Port}
Key Features
Two fully programmable serial 1/0
channels (DC TO^. 512K BAUD )
Tri-state TTL drive capabilities for
bi-directional data bus and control bus
on each channel
Loopback control for communications
link fault isolation for each UART
Line break generation and detection
for each UART
Complete status reporting capabilities
Generation and stripping of serial
asynchronous data control bits
(start ,stop parity )
Programmable baud rate generator
and modem control signals for each
channel
Pin Configuration
Fully prioritized independent interrupt
system controls for each channel
16byte FIFO buffers on both transmit
and receive of each channel to reduce
number of interrupts presented to the
CPU
Programmable FIFO threshold loves
of 1,4,8,or 14,bytes on each channel
Two modes of DMA signaling
available for transfer of data
characters to and from FIFO buffers
Fully bi-directional
centronics
compatible parallel port direct printer
interface
Advanced CMOS low power
technology with single +5voit supply
68-pin PLCC package
SOUT1 10
DTR1* 11
RTS1* 12
DSR1* 13
D0 14
D1 15
D2 16
D3 17
D4 18
D5 19
D6 20
D7 21
TXRdy0* 22
VCC 23
RTS0* 24
DTR0* 25
SOUT0 26
IMP 16C552
60 DSR*D
59 INT2
58 SLIN*+
57 INIT*+
56 AFD*+
55 STB*+
54 VSS
53 PD0
52 PD1
51 PD2
50 PD3
49 PD4
48 PD5
47 PD6
46 PD7
45 INT0
44 BDO
1
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© 2002 IMP, Inc.