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Renesas Electronics Components Datasheet

82C50A Datasheet

CMOS Asynchronous

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82C50A
CMOS Asynchronous
CMOS Asynchronous
The 82C50A Asynchronous Communication Element
(ACE) is a high performance programmable Universal
Asynchronous Receiver/Transmitter (UART) and Baud
Rate Generator (BRG) on a single chip. Using Intersil’s
advanced Scaled SAJI IV CMOS Process, the ACE will
support data rates from DC to 625K baud (0-10MHz clock).
The ACE’s receiver circuitry converts start, data, stop, and
parity bits into a parallel data word. The transmitter circuitry
converts a parallel data word into serial form and appends
the start, parity, and stop bits. The word length is
programmable to 5, 6, 7, or 8 data bits. Stop bit selection
provides a choice of 1,1.5, or 2 stop bits.
The Baud Rate Generator divides the clock by a divisor
programmable from 1 to 216-1 to provide standard RS-
232C baud rates when using any one of three industry
standard baud rate crystals (1.8432MHz, 2.4576MHz, or
3.072MHz). A programmable buffered clock output
(BAUDOUT) provides either a buffered oscillator or 16X (16
times the data rate) baud rate clock for general purpose
system use.
To meet the system requirements of a CPU interfacing to
an asynchronous channel, the modem control signals RTS,
CTS, DSR, DTR, RI, DCD are provided. Inputs and outputs
have been designed with full TTL/CMOS compatibility in
order to facilitate mixed TTL/NMOS/CMOS system design.
DATASHEET
FN2958
Rev.6.00
August 19, 2015
Features
• Single Chip UART/BRG
• DC to 625K Baud (DC to 10MHz Clock)
• Crystal or External Clock Input
• On Chip Baud Rate Generator 1 to 65535 Divisor
Generates 16X Clock
• Prioritized Interrupt Mode
• Fully TTL/CMOS Compatible
• Microprocessor Bus Oriented Interface
• 80C86/80C88 Compatible
• Scaled SAJI IV CMOS Process
• Low Power - 1mA/MHz Typical
• Modem Interface
• Line Break Generation and Detection
• Loopback and Echo Modes
• Doubled Buffered Transmitter and Receiver
• Single 5V Supply
• Pb-Free Plus Anneal Available (RoHS Compliant)
FN2958 Rev.6.00
August 19, 2015
Page 1 of 25


Renesas Electronics Components Datasheet

82C50A Datasheet

CMOS Asynchronous

No Preview Available !

82C50A
Ordering Information
625K BAUD
PART MARKING
TEMP RANGE (°C)
PACKAGE
PKG.
DWG. #
CP82C50A-5 (No longer available,
recommended replacement:
CS82C50A-5Z)
CP82C50A-5
0 to +70
40 Ld PDIP
E40.6
CP82C50A-5Z (Note) (No longer
available, recommended
replacement: CS82C50A-5Z)
CP82C50A-5Z
0 to +70
40 Ld PDIP (Pb-free)
E40.6
CS82C50A-5Z
(Note)
CS82C50A-5Z
0 to +70
44 Ld PLCC
(Pb-free)
N44.65
CS82C50A-5Z96
(Note)
CS82C50A-5Z
0 to +70
44 Ld PLCC Tape and Reel N44.65
(Pb-free)
IS82C50A-5Z (Note)
IS82C50A-5Z
-40 to +85
44 Ld PLCC (Pb-free)
N44.65
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
Functional Diagram
CSO 12
CS1 13
CS2 14
ADS 25
A0
28
A1
27
A2
26
MR
35
DISTR 22
DISTR 21
DOSTR 19
DOSTR 18
D0
1
D1
2
D2
3
D3
4
D4
5
D5
6
D6
7
D7
8
MICROPROCESSOR INTERFACE
24 CSOUT
23 DDIS
INTERRUPT
ENABLE,
30 INTRPT
ID, & CONTROL
UART
RECEIVER
LINE STATUS
AND CONTROL
DIVISOR LATCH
AND BAUD RATE
GENERATOR
TRANSMITTER
MODEM
MODEM CONTROL
MODEM STATUS
10
SIN
9
RCLK
15 BAUDOUT
16 XTAL1
17 XTAL2
11
SOUT
32
RTS
33
DTR
34
OUT1
31
OUT2
36
CTS
37
DSR
38
DCD
39
RI
FN2958 Rev.6.00
August 19, 2015
Page 2 of 25


Part Number 82C50A
Description CMOS Asynchronous
Maker Renesas
PDF Download

82C50A Datasheet PDF






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