C8051T614-GQR

Overview

The C8051T614-GQR is a mixed-signal microcontroller from the Silicon Labs C8051T61x family, featuring an 8051-compatible core operating at up to 25 MHz. It integrates 16 kB of byte-programmable EPROM and 1280 bytes of internal data RAM. The device operates on a supply voltage range of 1.8 V to 3.6 V and includes an on-chip LDO regulator. Key peripherals include four general-purpose 16-bit timers, a 16-bit Programmable Counter Array (PCA) with five capture/compare modules, and multiple serial communication interfaces such as UART, SMBus, and SPI.

Feature Summary

• Features a high-speed pipelined 8051 core capable of executing 70% of instructions in one or two system clocks for efficient processing.
• Includes on-chip debug circuitry that facilitates full-speed, non-intrusive in-system debugging with support for breakpoints and memory inspection.
• Integrates a programmable precision internal oscillator with ±2% accuracy, enabling crystal-less UART operation.
• Provides flexible port I/O configuration via a priority crossbar decoder, allowing digital pins to be assigned to various peripheral functions.

Applications

• Embedded systems requiring non-volatile code storage with field-updatable firmware capabilities
• Industrial control applications utilizing multiple serial communication protocols
• Sensor interface designs leveraging integrated timer and PCA functionality
• Cost-sensitive embedded controllers needing on-chip debug integration

Procurement Notes

Verify component authenticity through authorized distributors. Confirm package integrity upon receipt. Check datasheet revision history for any updates. Ensure design compatibility with existing development tools. Review end-of-life status before finalizing procurement plans.

Selection Notes

Select this MCU when byte-programmable EPROM is required for frequent code updates. Consider the 32-pin LQFP package for board layout constraints. Evaluate power consumption requirements against the 1.8 V to 3.6 V operating range. Assess peripheral needs against available timers and serial interfaces.

Part Context

This component belongs to the C8051T61x series of mixed-signal microcontrollers. It shares architectural similarities with other members of the T61x family but differs in memory size and package options. The series targets applications needing robust analog and digital integration within a compact footprint.

Replacement Considerations

Consult official documentation for direct substitutes. Verify pinout compatibility and electrical specifications. Ensure software migration paths are defined. Check availability of equivalent packages. Review manufacturer recommendations for legacy part transitions.

FAQ

What type of program memory does the C8051T614-GQR use?

It uses 16 kB of byte-programmable EPROM, allowing for in-system reprogramming.

Can the internal oscillator be used without an external crystal?

Yes, the programmable precision internal oscillator supports crystal-less UART operation due to its ±2% accuracy.

How many capture/compare modules are available in the PCA?

The 16-bit Programmable Counter Array includes five capture/compare modules.