SC28L91

SC28L91 Manufacturer

SC28L91 Description

SC28L91 Categories

SC28L91 Datasheet (PDF)

SC28L91 Price & Availability

SC28L91 Features

• Member of IMPACT family: 3.3 to 5.0 volt , -40°Cel to +85°Cel and
  
  68K for 80xxx bus interface for all devices.
• A full-duplex independent asynchronous receiver/transmitter
• 16 character FIFOs for each receiver and transmitter
• Pin programming selects 68K or 80xxx-bus interface
• 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
• 16-bit programmable Counter/Timer
• Programmable baud rate for each receiver and transmitter
  
  selectable from:
  
  -28 fixed rates: 50 to 230.4 k baud
  
  -Other baud rates to 1 MHz at 16X
  
  -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 7-bit input port (includes IACKN)
  
  -Can serve as clock or control inputs
  
  -Change of state detection on four inputs
  
  -Inputs have typically >100k pull-up resistors
  
  -Change of state detectors for modem control
• Multi-function 8-bit output port
  
  -Individual bit set/reset capability
  
  -Outputs can be programmed to be status/interrupt signals
  
  -FIFO status for DMA interface
• Versatile interrupt system
  
  -Single interrupt output with eight maskable interrupting
  
  conditions
  
  -Output port can be configured to provide a total of up to six
  
  separate interrupt outputs that may be wire ORed.
  
  -Each FIFO can be programmed for four different interrupt levels
  
  -Watch dog timer for the receiver
• Maximum data tra

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