C8051F206 - 25MHz 8KB Flash Mixed-Signal MCU | Silicon Labs
MPN: C8051F206 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
C8051F206 Overview
A microcontroller is a programmable integrated circuit that executes embedded software, reads inputs, controls outputs, and manages system timing. The C8051F206 belongs to the C8051F2xx family of 8-bit MCUs and occupies the MCU hierarchy above the processor core while integrating Flash memory, RAM, analog-to-digital conversion, timers, and serial communications on one package.
The supplied data identifies 25 MIPS performance, 8 kB Flash, 1.25 kB RAM, a 12-bit ADC, 32 I/O pins, three 16-bit timers, and a 2.7 V to 3.6 V supply range. Its 48-TQFP package provides more external connections than smaller 32-pin devices, supporting projects that need parallel digital I/O alongside analog measurement and serial communications. The package is surface-mount technology, but dimensions, pin assignments, and thermal details beyond the supplied 7 mm by 7 mm indication remain to be confirmed from the manufacturer documentation.
Technically, the part combines an 8051 core with mixed-signal peripherals. The 12-bit ADC suits sensor acquisition, while the three 16-bit timers support timing, pulse measurement, and periodic control tasks. The 8 KB Flash limits firmware complexity, so code size, boot code, library size, and update requirements should be checked early. The 25 MHz maximum clock supports faster control-loop and communication handling than lower-speed members of the same family, provided the firmware and peripherals remain within documented timing limits.
Typical uses include industrial sensor controllers, compact data-acquisition modules, embedded instrumentation, communications equipment, and general mixed-signal control boards. A design can place analog sensing and digital control in one device, reducing the need for a separate ADC or controller when the 32 available I/O pins and specified RAM are sufficient.
Design planning should begin with the manufacturer's datasheet rather than distributor summaries. Confirm the exact 48-pin assignments, exposed versus non-exposed thermal arrangements, oscillator requirements, reset behavior, ADC reference limits, and peripheral multiplexing. Because Flash and RAM are modest for many contemporary workloads, prototype firmware should be compiled early and measured for code and data-memory margins.
This page combines verified distributor specifications, source links, application guidance, and replacement-screening criteria. It also distinguishes confirmed values from missing parameters, avoiding unsupported electrical claims while highlighting where a PCB or firmware revision may be required before substitution.
Drop-in alternatives for C8051F206 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with C8051F206 (same form factor and footprint) — differing in ADC Resolution, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
Request AlternativesC8051F206 Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit mixed-signal microcontroller |
| Series | C8051F2xx |
| Maximum Clock Frequency | 25 MHz |
| Maximum Performance | 25 MIPS |
| Program Memory | 8 KB (8K x 8) Flash |
| RAM | 1.25 KB (1.25K x 8) |
| ADC Resolution | 12 bit |
| General-Purpose I/O | 32 pins |
| Timer Count | 3 timers |
| Timer Resolution | 16 bit per timer |
| Supply Voltage Range | 2.7 V to 3.6 V |
| Package | 48-TQFP (7 mm x 7 mm) |
| Mounting Type | Surface mount |
| Architecture | 8051 |
| In-System Programming | Supported |
C8051F206 48-tqfp (7 mm x 7 mm) Pin Configuration Guide
Pin configuration for C8051F206 (48-tqfp (7 mm x 7 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for C8051F206.
Refer to the datasheet for full pin configuration.
Typical Applications
C8051F206 is suitable for 6 applications: Industrial Sensor Controller, Portable Data-Acquisition Module, Embedded Instrumentation, Communications Equipment, Compact Control Board, Educational Embedded-Control Platform.
Industrial Sensor Controller
The C8051F206 fits compact industrial sensing modules because it combines a 12-bit ADC with 32 I/O pins and three 16-bit timers on a 2.7 V to 3.6 V supply. The MCU can sample external sensors, implement threshold logic, and drive control outputs without a separate ADC when the integrated converter meets the accuracy requirement. The 25 MHz clock supports responsive control tasks, while 8 KB Flash and 1.25 KB RAM keep the design compact. Verify ADC timing and industrial temperature requirements in the manufacturer datasheet.
Recommended
Portable Data-Acquisition Module
The C8051F206 can form the control core of a small data-acquisition module with its 12-bit ADC, 25 MHz operating speed, and 32 I/O pins. A portable design operating from a 3.3 V rail falls within the verified 2.7 V to 3.6 V supply range. The MCU can sequence measurements, timestamp events with its timers, and communicate results through an available serial interface. The small memory footprint makes external buffering or nonvolatile storage advisable for long records.
Recommended
Embedded Instrumentation
The C8051F206 is suitable for compact instrumentation that combines analog measurement with digital control. Its 12-bit ADC provides a clear conversion-resolution specification, while 32 I/O pins can support displays, buttons, relays, or status indicators. Three 16-bit timers are useful for sampling intervals, pulse-width measurement, and periodic control. Because only 8 KB Flash and 1.25 KB RAM are confirmed, keep firmware modular and use external memory or storage when instrument data storage is substantial.
Recommended
Communications Equipment
The C8051F206 can support compact communications equipment where an 8-bit controller, timers, and mixed-signal inputs are needed in one device. Its 25 MHz clock provides processing headroom for protocol handling and supervisory logic, while the 32 I/O pins can connect status signals, control lines, and indicators. The integrated 12-bit ADC can monitor supply, signal level, or sensor feedback. Exact UART, SPI, or other interface assignments must be confirmed from the complete manufacturer datasheet before layout.
Recommended
Compact Control Board
The C8051F206 is appropriate for a compact control board that must combine digital I/O, analog monitoring, and timing functions. Its 48-TQFP package provides 48 physical positions, while the verified 32 I/O count reduces the need for a separate expander in suitable designs. The three 16-bit timers support periodic actuation and input timing, and the 3.3 V-compatible supply range simplifies integration with modern low-voltage logic. Confirm pin multiplexing and exposed-pad requirements before layout.
Recommended
Educational Embedded-Control Platform
The C8051F206 provides a practical platform for learning embedded control because it combines an 8051 core, Flash program memory, RAM, timers, ADC, and digital I/O in one package. Students can develop acquisition, timing, communications, and control examples on a single board, while the 2.7 V to 3.6 V range simplifies 3.3 V laboratory rails. The limited 8 KB Flash and 1.25 KB RAM encourage disciplined firmware design. Toolchain and debugger availability should be checked before committing to a course platform.
Recommended
Recommended Products Summary
Engineering reference data for C8051F206 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Package | 48-TQFP (7 mm x 7 mm) |
| Brand | Silicon Labs |
| Maximum Clock | 25 MHz |
| Program Memory | 8 KB Flash |
| RAM | 1.25 KB |
| ADC | 12-bit ADC |
| General-Purpose I/O | 32 pins |
| Supply Voltage | 2.7 V to 3.6 V |
Key Differentiators
- Integrated mixed-signal control (vs A discrete 8051 controller plus external ADC)
- Timing resources for control applications (vs A basic 8-bit MCU with fewer specified timer resources)
- Compact 3.3 V-compatible integration (vs A higher-voltage or more demanding mixed-signal controller)
Design Notes
Design the C8051F206 supply rail for the verified 2.7 V to 3.6 V device range, with the 3.3 V system rail positioned inside that range. Place local decoupling capacitors close to the supply and ground pins according to the manufacturer layout guidance. Confirm whether the 48-TQFP thermal or exposed pad is electrically connected and must be tied to ground; the supplied search snippets do not establish that package detail.
Use the manufacturer package drawing and pin table before routing because the verified data confirms a 48-TQFP package but not the complete pin mapping. Treat analog inputs, oscillator pins, reset, programming signals, and multiplexed digital I/O as placement-critical. Maintain short return paths for analog and digital ground connections, and check the land pattern against the exact ordering suffix rather than relying only on the generic TQFP48 name.
The 8 KB Flash and 1.25 KB RAM are the most important design constraints. Compile the complete firmware, interrupt code, startup routines, drivers, and calibration data early, then measure actual utilization. Do not assume that a distributor comparison page proves replacement compatibility: package, pinout, clock, peripherals, programming, and software model must all be verified.
Compliance Information
The supplied verified data does not provide compliance statements for RoHS, REACH, lead-free status, halogen-free status, conflict minerals, or automotive qualification. Do not infer these values from distributor listings.
