C8051T612-GQR

Overview

The C8051T612-GQR is a mixed-signal microcontroller from the C8051T61x series, featuring an 8051-compatible CIP-51 core with up to 25 MIPS throughput at 25 MHz. It integrates 16 kB of byte-programmable EPROM and 1280 bytes of internal data RAM. The device includes a 10-bit ADC supporting up to 500 ksps conversion rates and up to 21 external inputs. It operates on a supply voltage range of 1.8 V to 3.6 V and supports an industrial temperature range of –40 °C to +85 °C.

Feature Summary

• Features a high-speed pipelined CIP-51 core that executes 70% of instructions in one or two system clocks for efficient processing.
• Integrates a 10-bit analog-to-digital converter (ADC) capable of high-speed sampling up to 500 ksps with multiple input channels.
• Includes on-chip debug circuitry facilitating full-speed, non-intrusive in-system debugging with breakpoint support.
• Provides flexible clock sources including a programmable internal oscillator with ±2% accuracy for crystal-less UART operation.

Applications

• Embedded systems requiring byte-programmable memory for field updates
• Industrial control applications needing mixed-signal processing
• Sensor interface circuits utilizing high-speed ADC capabilities
• Battery-powered devices operating within low voltage ranges

Procurement Notes

Verify component authenticity through authorized Silicon Labs distributors. Confirm package integrity upon receipt as surface-mount devices are sensitive to handling. Check datasheet revisions for any errata affecting specific silicon batches. Ensure design compliance with absolute maximum ratings to prevent damage. Validate pinout compatibility with existing PCB layouts before final assembly.

Selection Notes

Select this component when byte-programmable EPROM is required instead of Flash memory. Consider the 1.8 V to 3.6 V supply range for low-voltage designs. Evaluate the 21-channel ADC multiplexer against application signal requirements. Assess the 29-port I/O count for peripheral connectivity needs. Review the QFN-28 package dimensions for board space constraints.

Part Context

This part belongs to the C8051T61x family of mixed-signal microcontrollers. The series shares the CIP-51 core architecture but varies in memory size and package options. The GQR suffix indicates a specific tape-and-reel packaging configuration for automated assembly. Other variants in the family include different pin counts and memory capacities.

Replacement Considerations

Silicon Labs marks the C8051T61x series as Not Recommended for New Designs. No direct official replacement part numbers are listed in the provided documentation. Designers should evaluate newer Silicon Labs families such as EFM8 or C8051F for future projects.