SC26C92C1A,518

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The SC26C92C1A,518 is a dual universal asynchronous receiver/transmitter (DUART) manufactured by NXP USA Inc. It provides two independent full-duplex channels within a single package. The device features an 8-byte FIFO for both the receiver and transmitter to minimize overrun and underrun risks. It supports data rates up to 1 Mbps with programmable baud rate generators and includes a 16-bit counter/timer. The component operates on a single +5V supply and is housed in a 44-pin Plastic Leaded Chip Carrier (PLCC) package.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual independent asynchronous receiver/transmitter channels
• Eight-character FIFOs for both receive and transmit paths
• Programmable baud rate generation and 16-bit counter/timer
• Integrated multipurpose I/O ports and versatile interrupt system

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Microprocessor-based serial communication systems
• Clustered terminal systems requiring dual-speed channel operation
• Industrial control applications utilizing modem or DMA interfaces

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature range. Confirm RoHS compliance status as manufacturing processes may evolve. Ensure the PLCC-44 footprint matches the target PCB design requirements before finalizing procurement.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when dual-channel asynchronous communication is required within a single integrated circuit. The inclusion of hardware flow control via RTS/CTS signaling and deep FIFOs makes it suitable for high-throughput environments. Verify that the 44-pin PLCC package is compatible with the assembly capabilities of the production line.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the SC26C92 family of DUARTs produced by NXP Semiconductors. It serves as a pin-compatible replacement for legacy devices such as the SCC2692 and SCN2681 while offering enhanced performance through deeper buffers and extended baud rate capabilities. The device maintains backward compatibility with standard UART command sets.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

SC26C92C1N (DIP-40 variant)

UARTs (Universal Asynchronous Receiver Transmitter) FAQ

What is the maximum data transfer rate supported by the SC26C92?

The device supports maximum data transfer rates of 1 Mb/sec in both 1X and 16X clock modes.

How does the SC26C92 handle power consumption during idle states?

The device includes a dedicated power down mode to reduce current consumption when the unit is not actively processing data.

Can the receiver and transmitter operate at different speeds?

Yes, each channel can independently select its operating speed from fixed baud rates, a programmable counter/timer, or external clocks.