Description

The SC26C92C1N is an electronic component model in the category of UARTs (Universal Asynchronous Receiver Transmitter). It is a pin and function replacement for the SCC2692 and SCN2681 with added features and deeper FIFOs. The SC26C92C1N has an 8 character receiver and 8 character transmit FIFOs. It also has a watch dog timer for each receiver and a mode register 0. Additionally, it offers extended baud rate options and overall faster speeds. The SC26C92C1N supports programmable receiver and transmitter interrupts. It is important to note that the SCC2692 is not being discontinued.

Specifications and Features

• Dual full-duplex independent asynchronous receiver/transmitters
• 8 character FIFOs for each receiver and transmitter
• 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:
• 27 fixed rates: 50 to 230.4k baud
• Other baud rates to 230.4k baud 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 loopback
• Remote loopback
• Multidrop mode (also called ‘wake-up’ or ‘9-bit’)
• Multi-function 7-bit input port
• Can serve as clock, modem, or control inputs
• Change of state detection on four inputs
• Inputs have typically >100k pull-up resistors
• Multi-function 8-bit output port
• Individual bit set/reset capability
• Outputs can be programmed to be status/interrupt signals
• FIFO states for DMA and modem 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 wire-ORable interrupt outputs
• 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 multidrop applications
• Start-end break interrupt/status
• Detects break which originates in the middle of a character
• On-chip crystal oscillator
• Power down mode
• Receiver timeout mode
• Single +5V power supply
• Powers up to emulate SCC2692

Application Scenarios

The SC26C92C1N is commonly used in electronic devices that require UART functionality. It is suitable for various applications, including but not limited to:

• Embedded systems
• Serial communication interfaces
• Data transmission and reception
• Industrial automation
• Computer peripherals

Comparison

• Pin and function compatible replacement for SCC2692 and SCN2681
• Deeper FIFOs for improved data throughput
• Programmable baud rate for flexible communication
• Supports multiple data formats and stop bit options
• Versatile interrupt system with configurable outputs
• Wide range of applications in various industries
• Single +5V power supply for convenience

• Not a direct replacement for all previous UART models
• May require additional programming for specific applications
• Requires understanding of UART functionality for optimal use