C8051F133

Overview

The C8051F133 is a mixed-signal System-on-Chip microcontroller from Silicon Labs, featuring a high-speed CIP-51 core with 100 MIPS throughput. It integrates 64 kB of in-system programmable Flash memory and 8448 bytes of internal RAM. Key analog peripherals include a 10-bit SAR ADC with up to 100 ksps throughput, two 12-bit DACs, and two analog comparators. The device supports 5 V tolerant I/O, on-chip JTAG debug, and operates within a 2.7–3.6 V supply range.

Feature Summary

• Integrated high-speed CIP-51 microcontroller core with pipelined architecture for efficient instruction execution.
• On-chip mixed-signal capabilities including a 10-bit ADC, dual 12-bit DACs, and analog comparators.
• In-system programmable Flash memory allowing for field updates without external programming hardware.
• Comprehensive digital connectivity with SMBus, SPI, and dual UART interfaces alongside a programmable crossbar.

Applications

• Industrial control systems requiring precise analog signal acquisition and processing
• Data acquisition systems utilizing the integrated ADC and DAC peripherals
• Embedded applications needing robust in-circuit debugging and non-volatile memory management

Procurement Notes

Verify the specific package variant and temperature rating against project requirements before ordering. Confirm that the selected component matches the exact part number suffix for voltage and packaging specifications. Ensure compatibility with existing development tools and debug interfaces. Check for RoHS compliance status if required by regulatory standards. Validate supply chain authenticity through authorized distributors.

Selection Notes

Select this model when a balance of processing speed and analog precision is required. The 10-bit ADC resolution suits moderate accuracy applications compared to higher-resolution alternatives. Consider the 64 kB Flash size for firmware complexity constraints. Evaluate power consumption profiles against available supply voltages. Ensure pin count fits the mechanical design constraints of the target enclosure.

Part Context

This component belongs to the C8051F12x/13x family of mixed-signal microcontrollers. It shares architectural similarities with the C8051F12x series but differs in specific analog peripheral configurations, such as the ADC bit depth. The family emphasizes full silicon interoperability and shared development resources across variants.

Replacement Considerations

Compatible substitutes within the same family include C8051F130, C8051F131, and C8051F132. These parts share identical pinouts and core functionality but may vary in Flash capacity or analog peripheral availability. Verify specific feature sets before substitution.

FAQ

What is the maximum throughput of the ADC on the C8051F133?

The 10-bit SAR ADC supports a programmable throughput of up to 100 ksps.

Does the C8051F133 support in-system programming?

Yes, it features 64 kB of in-system programmable (ISP) Flash memory.

How many 12-bit DACs are included in this device?

The C8051F133 includes two 12-bit Digital-to-Analog Converters.