UPD1001-A/MQ

Overview

The UPD1001-A/MQ is a high-performance, single-chip CMOS universal synchronous/asynchronous receiver-transmitter (USART) manufactured by Microchip Technology. This component integrates a full-duplex asynchronous serial communication interface with support for standard baud rates and programmable data formats. It features an integrated clock generator, allowing operation in both synchronous and asynchronous modes without external timing components. The device is designed for reliable data transmission in embedded systems requiring serial connectivity.

Feature Summary

• Integrates a complete USART with synchronous and asynchronous operational modes on a single chip
• Includes an internal clock generator to eliminate the need for external timing circuitry
• Supports full-duplex data transmission with configurable data word lengths and parity options

Applications

• Embedded microcontroller serial communication interfaces
• Industrial control system data links
• Point-to-point serial data transfer modules

Procurement Notes

Verify the specific suffix 'A/MQ' against official Microchip documentation to confirm package type and temperature range. Ensure compatibility with voltage levels and pin configurations required by the target design. Cross-reference datasheet revisions for any updates to electrical characteristics or recommended operating conditions before finalizing procurement.

Selection Notes

Select this component when a dedicated USART solution is preferred over software-bit-banging for higher throughput and lower CPU overhead. Consider the MQ package variant if space constraints or thermal requirements dictate a specific footprint. Evaluate power consumption specifications relative to system battery life requirements.

Part Context

This part belongs to Microchip's family of serial communication controllers. It serves as a bridge between parallel microprocessor buses and serial communication lines. The UPD1001 series is typically utilized in legacy or specialized industrial applications where hardware-based serial handling reduces processor load.

Replacement Considerations

Consult Microchip's official obsolescence notices and cross-reference tools for direct replacements. Verify pinout compatibility and register-level code migration efforts if substituting with newer USART peripherals from other manufacturers.