C8051F230

Overview

The C8051F230 is a mixed-signal System on a Chip MCU featuring an 8051-compatible core with 8 kB of in-system programmable Flash memory and 256 bytes of internal data RAM. It operates at up to 25 MIPS with a 25 MHz clock, supporting a supply voltage range of 2.7 V to 3.6 V. The device includes hardware UART and SPI interfaces, three 16-bit counter/timers, and a dedicated watchdog timer. It provides 32 general-purpose I/O pins that are 5 V tolerant and supports full-speed non-intrusive JTAG debugging.

Feature Summary

• Integrated hardware serial communication interfaces including UART and SPI bus for reliable data transfer without software bit-banging.
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging via JTAG without requiring external emulation hardware.
• High-performance pipelined instruction architecture that executes the majority of instructions in one or two system clocks.

Applications

• Industrial control systems requiring robust digital I/O and serial communication
• Embedded sensor interface applications utilizing hardware timers and reset sources
• General-purpose microcontroller designs needing in-circuit reprogrammable flash memory

Procurement Notes

Verify the specific package variant, as the C8051F2xx family offers both 48-pin TQFP and 32-pin LQFP options. Confirm the operating temperature range requirements against the standard -40 °C to +85 °C specification. Ensure development tools support the CIP-51 core architecture for proper programming and debugging integration.

Selection Notes

Select this model when ADC functionality is not required, distinguishing it from other members of the C8051F2xx family. It is suitable for applications prioritizing digital I/O count and serial peripherals over analog signal acquisition. Consider the 5 V tolerant I/O capability if interfacing with legacy logic levels directly.

Part Context

The C8051F230 belongs to the C8051F2xx family of fully integrated mixed-signal System on a Chip MCUs manufactured by Silicon Laboratories. This family shares a common high-speed 8051 core and ISP Flash technology, differentiating models primarily through the inclusion or exclusion of analog peripherals like multi-channel ADCs and comparators.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.