C8051F334-GM

Overview

The C8051F334-GM is a mixed-signal ISP Flash microcontroller from Silicon Labs, featuring an 8051 core with up to 25 MIPS throughput at a 25 MHz clock. It includes 2 kB of in-system programmable Flash memory and 768 bytes of internal data RAM (256 + 512). The device integrates a 10-bit ADC supporting up to 200 ksps with up to 16 external inputs, a voltage comparator, and multiple digital peripherals including UART, SMBus, SPI, four timers, and a Programmable Counter Array. It operates on a supply voltage of 2.7 to 3.6 V within a temperature range of –40 to +85 °C.

Feature Summary

• Integrates a high-speed pipelined 8051 core capable of executing most instructions in one or two system clocks for improved throughput.
• Includes on-chip debug circuitry that facilitates full-speed, non-intrusive in-system debugging without requiring external emulation hardware.
• Features a programmable digital crossbar architecture that allows flexible configuration of peripheral pins to port I/O lines.
• Supports in-system programming of Flash memory in 512-byte sectors, enabling field upgrades and non-volatile data storage.

Applications

• Industrial control systems
• Portable instrumentation
• Sensor signal conditioning
• Embedded communication interfaces

Procurement Notes

Verify the specific suffix 'GM' corresponds to the QFN-20 package variant as documented in the datasheet. Confirm that the design intent aligns with the manufacturer's recommendation status for this series. Ensure power supply requirements match the specified 2.7V to 3.6V operating range. Check for any pinout compatibility needs with existing PCB layouts using the provided pin definitions.

Selection Notes

Select this component when a compact 20-pin solution is required for mixed-signal applications. It is suitable for designs needing moderate Flash capacity and analog input capabilities. Consider the 25 MHz maximum clock speed for processing requirements. Evaluate the integrated peripherals against interface needs to minimize external components.

Part Context

This part belongs to the C8051F33x family of mixed-signal microcontrollers. These devices are known for their high integration levels, combining analog and digital peripherals on a single chip. The family shares a common instruction set and development environment, facilitating migration between different memory sizes and peripheral configurations within the same product line.

Replacement Considerations

The C8051F330, C8051F331, C8051F332, C8051F333, and C8051F335 are pin-compatible members of the same family. Selection among these depends primarily on Flash memory size and the presence of specific analog peripherals like the DAC or ADC channels.