SC26C92C1A,512

UARTs (Universal Asynchronous Receiver Transmitter) Overview

The SC26C92C1A,512 is a dual universal asynchronous receiver/transmitter (DUART) manufactured by NXP USA Inc. It provides two independent full-duplex channels within a 44-pin Plastic Leaded Chip Carrier (PLCC) package. The device features an 8-byte FIFO for both the receiver and transmitter to minimize overrun and underrun errors. It operates on a single +5V power supply and supports data transfer rates up to 1Mb/sec. Key electrical parameters include a maximum clock frequency of 8 MHz, an address bus width of 4 bits, and an external data bus width of 8 bits.

UARTs (Universal Asynchronous Receiver Transmitter) Feature Summary

• Dual independent asynchronous receiver/transmitter channels with 8-character FIFOs
• Programmable baud rate generation using internal crystal oscillator or external clocks
• Versatile interrupt system with maskable conditions and programmable output ports
• Multipurpose 7-bit input port and 8-bit output port with change-of-state detection

UARTs (Universal Asynchronous Receiver Transmitter) Applications

• Microprocessor-based serial communication systems
• Clustered terminal systems requiring dual-speed channel applications
• Modem interface and DMA interface implementations
• Interrupt-driven serial I/O control systems

UARTs (Universal Asynchronous Receiver Transmitter) Procurement Notes

Verify the specific ordering suffix against the manufacturer's current product status documentation. Confirm that the PLCC-44 package variant matches the design requirements. Ensure compliance with RoHS directives as indicated in the official specifications. Cross-reference the part number with authorized distributors to confirm availability and authenticity before finalizing procurement.

UARTs (Universal Asynchronous Receiver Transmitter) Selection Notes

Select this component when a dual-channel UART solution with integrated FIFOs is required for microprocessor interfacing. Consider the PLCC-44 package constraints for PCB layout. Evaluate the need for independent baud rate programming per channel. Verify that the 5V logic levels and CMOS interface are compatible with the target system architecture.

UARTs (Universal Asynchronous Receiver Transmitter) Part Context

The SC26C92 series serves as a pin-compatible replacement for legacy devices such as the SCC2692 and SCN2681. It retains the initial configuration of the SCC2692 upon power-up while offering enhanced features like deeper FIFOs and extended baud rate capabilities. This continuity allows for direct upgrades in existing designs without significant hardware modifications.

UARTs (Universal Asynchronous Receiver Transmitter) Replacement Considerations

SC26C92A1N is the industrial temperature version of this device family.