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Product Detailed Parameters
- Description：IC MCU 8BIT 4KB FLASH 16SOIC
- Series：C8051F86x
- Mfr：Silicon Labs
- Package：Tube
- Core Processor：8051
- Core Size：8-Bit
- Speed：25MHz
- Connectivity：I2C, SPI, UART/USART
- Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O：13
- Program Memory Size：4KB (4K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：512 x 8
- Voltage - Supply (Vcc/Vdd)：2.2V ~ 3.6V
- Data Converters：A/D 12x12b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：-
- Package / Case：16-SOIC (0.154", 3.90mm Width)
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Overview
The C8051F861-C-GS is an 8-bit microcontroller from the Silicon Labs C8051F85x/86x family, featuring a high-speed CIP-51 core with up to 25 MIPS throughput at a 25 MHz clock. It integrates 8 kB of in-system programmable Flash memory and 512 bytes of RAM (256 + 256). The device includes a 12-bit ADC with up to 16 input channels, two analog comparators, and multiple communication peripherals including UART, I2C/SMBus, and SPI. It operates on a supply voltage of 2.2 to 3.6 V and is available in a 16-pin SOIC package.
Feature Summary
- High-Speed CIP-51 Core: Pipelined instruction architecture delivering up to 25 MIPS throughput using the standard 8051 instruction set.
- On-Chip Debug Circuitry: Facilitates full-speed, non-intrusive in-system debug without requiring an external emulator.
- Mixed-Signal Integration: Includes a 12-bit ADC with up to 16 channels, two analog comparators, and internal oscillators.
- Flexible I/O Configuration: Up to 18 pins with 5 V tolerance and crossbar-enabled routing for peripheral assignment.
Applications
- Industrial control systems
- Consumer electronics
- Sensor interface modules
Procurement Notes
Verify the specific suffix -GS corresponds to the commercial temperature range (-40°C to +85°C) and SOIC-16 package as defined in the datasheet ordering information. Confirm that the component status is noted as Not Recommended for New Designs before initiating procurement for new projects.
Selection Notes
Select this model when a cost-effective 8-bit MCU with mixed-signal capabilities is required. Ensure the application fits within the 2.2V to 3.6V supply voltage range. Consider the limited pin count and memory size against project requirements, noting the device is not recommended for new designs.
Part Context
This component belongs to the C8051F85x/86x low-cost 8-bit MCU family. It shares architectural similarities with other members like the C8051F860 but differs in memory configuration and package options. The series emphasizes integration of analog peripherals with a standard 8051-compatible core.
Replacement Considerations
The datasheet explicitly states this family is Not Recommended for New Designs. Consult official Silicon Labs documentation for current recommended replacements or alternative product lines suitable for new designs.
