C8051F006

Overview

The C8051F006 is a mixed-signal System-on-a-Chip microcontroller from Silicon Labs, featuring a high-speed 8051 core operating at up to 25 MIPS with a 25 MHz clock. It integrates 32 KB of ISP Flash memory and 2304 bytes of internal data RAM. The device includes a 12-bit SAR ADC with programmable throughput up to 100 ksps, two 12-bit DACs, two analog comparators, and a precision voltage reference. Digital peripherals include hardware SMBus, SPI, UART, a Programmable Counter Array (PCA), and four general-purpose timers. It supports on-chip JTAG debug and operates within a supply voltage range of 2.7 V to 3.6 V across an industrial temperature range of –40°C to +85°C.

Feature Summary

• High-performance pipelined 8051 CPU executing 70% of instructions in one or two system clocks for up to 25 MIPS throughput.
• Integrated 12-bit SAR ADC with programmable gain amplifier and windowed interrupt generator for precise analog monitoring.
• On-chip JTAG debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulation hardware.
• Programmable digital crossbar allows flexible configuration of peripheral pins to available I/O ports.

Applications

• Data acquisition systems requiring high-resolution analog-to-digital conversion
• Industrial control applications utilizing integrated communication interfaces
• Portable instruments benefiting from low-power sleep modes
• Sensor interface circuits leveraging built-in temperature sensors

Procurement Notes

Verify the specific package variant required, as the C8051F006 family is available in 64-pin TQFP, 48-pin TQFP, and 32-pin LQFP configurations. Confirm that the design environment supports the CIP-51 instruction set and utilizes compatible development tools such as Silicon Labs IDE or Keil C51. Ensure power supply constraints align with the specified 2.7 V to 3.6 V operating range before finalizing component selection.

Selection Notes

Select the C8051F006 when a fully integrated mixed-signal solution is needed, eliminating external ADCs and DACs. The device is suitable for designs requiring simultaneous operation of multiple serial protocols like SMBus, SPI, and UART. Consider this part for applications needing robust analog features, including programmable comparators and a precision voltage reference, all managed by a fast 8051 core.

Part Context

The C8051F006 belongs to the C8051F00x/01x series of mixed-signal MCUs, which are distinguished by their direct silicon competition approach against discrete solutions. This family emphasizes high integration by combining a fast 8051 processor with extensive analog and digital peripherals on a single chip. The C8051F006 specifically targets applications demanding precise analog signal processing alongside complex digital control logic.

Replacement Considerations

Consult official Silicon Labs documentation for current end-of-life status and recommended alternatives. Verify pin compatibility and software migration requirements if substituting with other members of the C8051F0xx series or newer EFM8 families.

FAQ

Does the C8051F006 require external components for USB connectivity?

No, the C8051F006 does not include a USB controller; it relies on standard serial interfaces like UART, SMBus, and SPI for communication.

What is the maximum sampling rate of the integrated ADC?

The 12-bit SAR ADC supports a programmable throughput of up to 100 ksps.

Can the device be debugged without an emulator?

Yes, the on-chip JTAG debug circuitry facilitates full-speed, non-intrusive in-system debugging without the need for external emulation chips or sockets.