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82C50A

Renesas
Part Number 82C50A
Manufacturer Renesas
Description CMOS Asynchronous
Published Feb 15, 2021
Detailed Description 82C50A CMOS Asynchronous CMOS Asynchronous The 82C50A Asynchronous Communication Element (ACE) is a high performance pro...
Datasheet PDF File 82C50A PDF File

82C50A
82C50A

Overview
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 RS232C 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 2...


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