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SC28L92 Datasheet PDF - Philips Electronics

Part NameDescriptionManufacturer
SC28L92 3.3V–5.0V Dual Universal Asynchronous Receiver/Transmitter (DUART) Philips
Philips Electronics Philips
Other PDF  no available.
SC28L92 Datasheet PDF : SC28L92 pdf   
SC28L92A1B image

DESCRIPTION
The SC28L92 is a pin and function replacement for the SCC2692 and SC26C92 operating at 3.3 or 5 volts supply with added features and deeper FIFOs. Its configuration on power up is that of the SC26C92. Its differences from the 2692 are: 16 character receiver, 16 character transmit FIFOs, watch dog timer for each receiver, mode register 0 is added, extended baud rate and overall faster speeds, programmable receiver and transmitter interrupts. (Neither the SC26C92 nor the SCC2692 is being discontinued.)

FEATURES
• Member of IMPACT family: 3.3 to 5.0 volt , –40°C to +85°C and 68K for 80xxx bus interface for all devices.
• Dual full-duplex independent asynchronous receiver/transmitters
• 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 230.4k baud
    – Other baud rates to 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 each receiver
• Maximum data transfer rates: 1X – 1Mb/sec, 16X – 1Mb/sec
• Automatic wake-up mode for multi-drop applications
• Start-end break interrupt/status
• Detects break which originates in the middle of a character
• On-chip crystal oscillator
• Power down mode
• Receiver time-out mode
• Single +3.3V or +5V power supply
• Powers up to emulate SC26C92

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