C8051F330D

Overview

The C8051F330D is an 8-bit microcontroller from Silicon Labs featuring a high-speed CIP-51 core with up to 25 MIPS throughput at a 25 MHz clock. It integrates 8 kB of ISP Flash memory and 768 bytes of internal data RAM. Key analog peripherals include a 10-bit ADC supporting up to 200 ksps with 16 external inputs, a 10-bit current output DAC, and a comparator. The device operates on a supply voltage of 2.7 V to 3.6 V and supports industrial temperature ranges from -40 °C to +85 °C.

Feature Summary

• Features a fully 8051-compatible CIP-51 core with pipelined architecture for high instruction throughput.
• Includes integrated on-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Provides flexible digital I/O via a programmable crossbar that allows dynamic assignment of peripheral functions to pins.
• Supports multiple clock sources including precise internal oscillators and external crystals for power-saving mode switching.

Applications

• Industrial control systems requiring mixed-signal processing
• Portable battery-powered devices utilizing low-power stop modes
• Data acquisition systems using the integrated ADC and temperature sensor
• Embedded communication interfaces such as UART, SMBus, and SPI

Procurement Notes

Verify the specific suffix 'D' indicates the DIP package variant when sourcing components. Confirm the revision level of the datasheet matches the production batch requirements. Check for any obsolescence notices or recommended replacement parts from Silicon Labs prior to finalizing procurement plans.

Selection Notes

Select this component for applications needing a robust 8051 architecture with significant on-chip analog capabilities. Ensure the design accommodates the 2.7 V to 3.6 V operating range. Consider the available I/O count and timer resources against system complexity before choosing between this model and other members of the C8051F33x family.

Part Context

This part belongs to the C8051F330/1 and C8051F330D ISP Flash MCU family produced by Silicon Laboratories. It shares the same core architecture and peripheral set as the C8051F330, differing primarily in package configuration. The family is designed for cost-sensitive embedded applications requiring mixed-signal functionality.

Replacement Considerations

Consult official Silicon Labs documentation for direct pin-to-pin replacements within the C8051F33x series. Verify compatibility of software drivers and peripheral configurations when migrating to alternative packages or updated revisions of the same silicon.

FAQ

What is the maximum sampling rate of the ADC on the C8051F330D?

The 10-bit ADC supports a maximum sampling rate of up to 200 ksps.

Does the C8051F330D support in-system programming?

Yes, it features 8 kB of Flash memory that is In-System Programmable (ISP) in 512-byte sectors.

How many general-purpose I/O ports are available?

The device provides 17 Port I/O lines, all of which are 5 V tolerant with high sink current capability.