SC28L202

SC28L202 Manufacturer

SC28L202 Description

SC28L202 Categories

SC28L202 Datasheet (PDF)

SC28L202 Price & Availability

SC28L202 Features

• Member of IMPACT family: 3.3 V to 5.0 V , ?40 Cel. to +85 Cel. and 68K for 80xxx bus interface for all devices.
• Bit-by-bit real time transmission error check for high data integrity systems.
• Dual full-duplex independent asynchronous receiver/transmitters
• 256 character FIFOs for each receiver and transmitter
• Powers up to 9600 baud, 1 stop bit, no parity, 1 stop bit, interrupt disabled, all I/O set to input.
• Pin programming to 68K or 80xxx bus interface
• Three character recognition system per channel, used as:
  • General purpose character recognition
  • Xon/Xoff character recognition
  • Address recognition Wake up (multi-drop or ?9 bit?) mode
  • System provides 4 levels of automation on a recognition event
• Programmable data format
  • 5 to 8 data bits plus parity and 9 bit mode
  • Odd, even, no parity or force parity
  • 9/16,1, 1.5 or 2 stop bits
• 16-bit programmable Counter/Timer
• Programmable baud rate for each receiver and transmitter selectable from:
  • 27 fixed rates: 50 to 2.0 Meg baud (includes MIDI® rate)
  • Other baud rates via external clocks and C/T
  • Programmable user-defined rates derived from a programmable Counter/timer
  • External 1X or 16X clock
• Parity, framing, and overrun error detection
• False start bit detection
• Line break detection and generation
• Programmable channel mode
  • Normal (full-duplex)
  • Automatic echo
  • Local loop back
  • Remote loop back
  • Multi-drop mode (also called ?wake-up? or ?9-bit?)
• Multi-function 8 bit I/O input port per channel loosely assigned to each channel.
  • Can serve as clock or control inputs
  • Change of state detection on eight inputs
  • Inputs have typically >100 M Ohm pull-up resistors
  • Modem and DMA interface
• Versatile arbitrating interrupt system
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