SCN68681

SCN68681 Manufacturer

SCN68681 Description

SCN68681 Categories

SCN68681 Datasheet (PDF)

SCN68681 Price & Availability

SCN68681 Features

• S68000 bus compatible
• Dual full-duplex asynchronous receiver/transmitter
• Quadruple buffered receiver data registers
• Programmable data format
  • 5 to 8 data bits plus parity
  • Odd, even, no parity or force parity
  • 1, 1.5 or 2 stop bits programmable in 1/16-bit increments
• Programmable baud rate for each receiver and transmitter selectable from:
  • 22 fixed rates: 50 to 115.2 k baud
  • Non-standard rates to 115.2 kb
  • Non-standard user-defined rate derived from programmable counter/timer
  • External 1X or 16X clock
• 16-bit programmable Counter/Timer
• Parity, framing, and overrun error detection
• False start bit detection
• Line break detection and generation
• Programmable channel mode
  • Normal (full-duplex)
  • Automatic echo
  • Local loopback
  • Remote loopback
• Multi-function programmable 16-bit counter/timer
• Multi-function 6-bit input port
  • Can serve as clock or control inputs
  • Change-of-state detection on four inputs
  • 100 k Ohm typical pull-up resistors
• Multi-function 8-bit output port
  • Individual bit set/reset capability
  • Outputs can be programmed to be status/interrupt signals
• Versatile interrupt system
  • Single interrupt output with eight maskable interrupting conditions
  • Interrupt vector output on interrupt acknowledge
  • Output port can be configured to provide a total of up to six separate wire-ORable interrupt outputs
• Maximum data transfer rates: 1X - 1 MB/sec, 16X - 125 kB/sec
• Automatic wake-up mode for multidrop applications
• Start-end break interrupt/status
• Detects break which originates in the middle of a character
• On-chip crystal oscillator
• Single +5 V power supply
• Commercial and industrial temperature ranges available
• DIP and PLCC p