SC26C92A1A,529

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The SC26C92A1A,529 is a dual universal asynchronous receiver/transmitter (DUART) manufactured by NXP USA Inc. It provides two independent full-duplex asynchronous channels within a single package. The device features an 8-character FIFO for both the receiver and transmitter to minimize overrun and underrun errors. It supports a +5V power supply and operates within a temperature range of -40°C to +85°C. The maximum data transfer rate reaches 1 Mb/sec at both 1X and 16X clock speeds. The component utilizes a 44-pin Plastic Leaded Chip Carrier (PLCC) package.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual independent asynchronous receiver/transmitter channels with 8-byte FIFOs
• Programmable baud rates selectable from fixed rates or external clocks
• Integrated 16-bit programmable counter/timer and on-chip crystal oscillator
• Versatile interrupt system with maskable conditions and watchdog timers

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Clustered terminal systems requiring dual-speed channel operation
• Interrupt-driven microprocessor communication interfaces
• Systems utilizing DMA and modem control signaling

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific ordering suffix matches the required commercial or industrial temperature rating. Confirm the package type corresponds to the design footprint. Ensure the voltage supply aligns with the specified +5V requirement. Check for RoHS compliance status if environmental regulations apply to the final assembly.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when pin compatibility with the SCC2692 is required alongside deeper FIFO buffers. Consider the SC26C92A1A for applications needing independent baud rate programming per channel. Evaluate the available package options against board space constraints. Verify that the 44-pin PLCC configuration fits the target PCB layout.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the SC26C92 family of DUARTs produced by Philips Semiconductors, now NXP. It serves as a functional replacement for the SCC2692 and SCN2681 while offering enhanced performance through extended baud rates and additional control registers. The 'A' suffix typically denotes the industrial temperature grade variant.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

The SC26C92A1A is explicitly documented as a pin and function replacement for the SCC2692 and SCN2681. Designers migrating from these legacy parts should verify that the added features, such as Mode Register 0 and watchdog timers, do not conflict with existing firmware logic.