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EI16C552 Datasheet دیتاشیت PDF دانلود

دیتاشیت - IMP - Dual FIFO UART and Parallel Port

شماره قطعه EI16C552
شرح مفصل Dual FIFO UART and Parallel Port
تولید کننده IMP 
آرم IMP 


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EI16C552 شرح
Ei16C552
Dual FIFO UART and
Parallel Port
FEATURES
IBM PC AT™ and PS/2™ compatible
• Dual channel version of Ei16C550 with
Centronics printer interface
• Independent control of transmit, receive, line
status and data set interrupts on each channel
• Programmable serial interface characteristics for
each channel:
-5, 6, 7 or 8 bit characters
-Even, odd or no parity bit generation and
dectection
-1, 1.5 or 2 stop bit generation
• Programmable baud rate generator divides
CLK input by a divisor between 1 and (216 -1)
• Tri-State® TTL drive capability for bidirectional
data bus and control bus on each channel
• 16 byte FIFO for receiver as well as for trans
mitter.
• Advanced CMOS low power technology with
single 5 volt supply
DESCRIPTION
The Ei16C552 is an enhanced dual channel version
of the Ei16C550 Universal Asynchronous Receiver
Transmitter (UART). The device serves two serial
input/output interfaces simultaneously in microcom-
puter or microprocessor based systems. Each chan-
nel performs a serial-to-parallel conversion on data
characters received from peripheral devices or
modems, and a parallel-to-serial conversion on data
characters transmitted by the CPU. The complete
status of each channel of the dual UART can be
read at any time during functional operation by the
CPU. The information obtained includes the type and
condition of the transfer operations being performed,
and error conditions. In addition to its dual commu-
nications interface capabilities, the Ei16C552 pro-
vides the user with a fully bidirectional parallel data
port that fully supports the parallel Centronics type
printer. The parallel port, together with the two serial
ports, provide IBM PC ATand PS2 compatible
computers with a single device to serve the three
system ports.
Part Numbers May Be Marked With "IMP" or "Ei."
PIN CONFIGURATION
SOUT1
DTR1•
RTS1•
CTS1•
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
TXRDY0•
VCC
RTS0•
DTR0•
SOUT0
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Ei16C552-CJ68
60 INT1
59 INT2
58 SLIN•
57 INIT•
56 AFD•
55 STB•
54 GND
53 PD0
52 PD1
51 PD2
50 PD3
49 PD4
48 PD5
47 PD6
46 PD7
45 INT0
44 BD0
5
For additional information, contact IMP, Inc. at 408.432.9100 or visit www.impweb.com
IMP, Inc. acquired Epic products on January 26, 2001. (see press release at http://www.impweb.com/PRESS/PR012601.htm)

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