SC26C92A1B,557

Description：IC UART DUAL W/FIFO 44QFP
Series：-

SKU:dcbf1e69deff Category: UARTs (Universal Asynchronous Receiver Transmitter) Brand: NXP USA Inc.

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Product introduction

SC26C92A1B,557 is listed in the UARTs (Universal Asynchronous Receiver Transmitter) range at ChipApex. The manufacturer field lists NXP USA Inc.. Its product description is IC UART DUAL W/FIFO 44QFP. Review the specifications below when checking this part for your BOM.

UARTs (Universal Asynchronous Receiver Transmitter) specifications for SC26C92A1B,557

Description：IC UART DUAL W/FIFO 44QFP
Series：-
Mfr：NXP USA Inc.
Package：Tray
Features：Configurable GPIO, Internal Oscillator, Timer/Counter
Number of Channels：2, DUART
FIFO's：8 Byte
Protocol：-
Data Rate (Max)：1Mbps
Voltage - Supply：5V
With Auto Flow Control：Yes
With IrDA Encoder/Decoder：-
With False Start Bit Detection：Yes
With Modem Control：Yes
Mounting Type：Surface Mount
Package / Case：44-QFP
Supplier Device Package：44-PQFP (10x10)
Grade：-
Qualification：-

UARTs (Universal Asynchronous Receiver Transmitter) datasheet and documents for SC26C92A1B,557

SC26C92A1B,557

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The SC26C92A1B,557 is a dual universal asynchronous receiver/transmitter (DUART) manufactured by NXP Semiconductors. It provides two independent full-duplex channels within a single package. The device features an 8-byte receive FIFO and an 8-byte transmit FIFO for each channel to minimize overrun and underrun risks. It operates on a single +5V power supply with a voltage range of 4.5V to 5.5V. The maximum data transfer rate reaches 230.4 kb/s using fixed baud rates or up to 1 Mb/sec via external clocks. It supports programmable data formats including 5 to 8 data bits, parity options, and 1, 1.5, or 2 stop bits. The component is housed in a 44-pin PQFP package and is rated for industrial temperatures from -40°C to +85°C.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

Dual independent asynchronous receiver/transmitter channels
Eight-character FIFOs for both receiver and transmitter buffers
Programmable baud rate generation with multiple clock sources
Versatile interrupt system with maskable conditions and watchdog timers

UARTs (Universal Asynchronous Receiver Transmitter) Applications

Clustered terminal systems requiring dual-speed channel operation
Microprocessor-based serial communication interfaces
Modem interface applications with DMA support

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific ordering suffix against current NXP documentation to confirm package type and temperature grade. Confirm availability status as distribution channels may list this component as obsolete or end-of-life. Ensure the required PQFP-44 footprint matches the PCB design specifications before procurement.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when dual independent UART channels are required in a single package. Verify that the 44-pin PQFP package fits the available board space. Ensure the application requires a +5V logic level interface. Check if the 8-byte FIFO depth meets the system's interrupt handling requirements compared to standard 1-byte buffer alternatives.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

This part belongs to the SC26C92 family of DUARTs, which serves as a pin-compatible replacement for older SCC2692 and SCN2681 devices. The SC26C92A1B specifically denotes the industrial temperature grade variant packaged in a 44-pin plastic quad flat pack. It retains the configuration compatibility of its predecessors while offering enhanced FIFO capabilities.