PIC16F886-I/SO - 8-Bit 20MHz Flash MCU | Microchip
MPN： PIC16F886-I/SO ✓ 啟用中PIC16F886-I/SO 概覽
A PIC16-family microcontroller is a small RISC-based embedded controller that combines a CPU core, nonvolatile program memory, data memory, and peripherals on one integrated circuit. It belongs to the hierarchy microcontroller, embedded processor, integrated circuit, and semiconductor. The PIC16 architecture is commonly used for industrial controls, instrumentation, sensor interfaces, and compact automation products because it provides deterministic peripherals, flexible internal oscillators, and simple programming workflows.
Program memory is organized as 8K by 14 words, providing 14 KB of flash memory for firmware and application code. The device also provides 368 bytes of data RAM and 256 bytes of EEPROM for configuration values, calibration coefficients, counters, or other data that must survive a power interruption. Its 35 single-word instruction set supports compact code generation, while self-programming allows applications to update stored data or firmware through supported programming mechanisms.
The PIC16F886 integrates an 11-channel, 10-bit analog-to-digital converter for reading sensors and potentiometers, along with two comparators for threshold and low-voltage detection. Its communication and timing resources include enhanced capture, compare, and PWM functions, plus a synchronous serial interface. These integrated resources can reduce the need for external analog, timing, and interface components in embedded control designs.
Typical applications include industrial sensor acquisition, motor and actuator control, instrumentation, environmental monitoring, compact power conversion, and embedded control in commercial equipment. The 20 MHz operating speed is suitable for moderate control-loop and communications workloads, while the 28-pin package supports conventional PCB assembly and external connection of sensors, displays, switches, and power stages.
Design around the complete device pinout and the manufacturer's recommended decoupling and oscillator arrangements. Confirm analog-input voltage limits, select the appropriate external or internal clock configuration, and reserve programming access before finalizing the PCB. Review the electrical characteristics and absolute maximum ratings in the manufacturer datasheet before connecting external power or signal sources.
This page combines the PIC16F886-I/SO device specifications, sourcing guidance, same-package alternatives, and application-focused engineering notes to support faster component selection and board-level design. It also highlights the distinctions among industrial-temperature, extended-temperature, and closely related PIC16 family devices that can otherwise appear interchangeable in package listings.
直接替換替代品，適用於 PIC16F886-I/SO — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16F886-I/SO （相同外形與佔位） — 差異在於 Package, Timers, Core Architecture, ADC, Serial Interfaces.
PIC16F886-E/SO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F887-I/SO
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC16F883-I/SO
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16F884-I/SO
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC16F882-I/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC16F886-I/SO 最大額定值與電氣特性
| Product Type | 8-bit CMOS Flash microcontroller |
| 最大時脈頻率 | 20 MHz |
| Program Memory | 14 KB Flash |
| Program Memory Organization | 8K x 14 words |
| Data RAM | 368 bytes |
| EEPROM Data Memory | 256 bytes |
| Digital I/O | 25 I/O |
| ADC Resolution | 10 bits |
| ADC Channels | 11 channels |
| Comparators | 2 |
| Instruction Set | 35 single-word instructions |
| Program Memory Type | Self-programmable Flash |
| 封裝 | 28-pin SOIC |
| 安裝類型 | Surface Mount |
| Temperature Grade | -I industrial grade |
PIC16F886-I/SO 28-pin soic 腳位配置指南
PIC16F886-I/SO（28-pin soic 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： PIC16F886-I/SO.
請參閱 資料表 以查看完整腳位配置。
典型應用
PIC16F886-I/SO 適用於 6 應用s: Industrial Sensor Acquisition, Compact Motor and Actuator Control, Environmental Monitoring Stations, Programmable Instrumentation, Power Conversion and Battery Systems, Embedded Access and Control Panels.
Industrial Sensor Acquisition
The PIC16F886-I/SO is well suited to multi-channel industrial sensing because it combines an 11-channel, 10-bit ADC with 25 digital I/O pins and 20 MHz processing in a 28-pin SOIC package. Engineers can connect analog pressure, temperature, level, or position sensors and perform filtering, calibration, thresholding, and control logic in one controller. The 368-byte RAM supports working buffers and peripheral state, while 256 bytes of EEPROM can retain calibration constants or configuration records. Place input protection and conditioning ahead of the ADC pins, and verify that each analog signal remains within the limits stated in the family data sheet.
推薦
Compact Motor and Actuator Control
The PIC16F886-I/SO can supervise small motors, solenoids, valves, and relays where a dedicated motor controller would add unnecessary complexity. Its 20 MHz clock supports responsive timing, while the enhanced capture, compare, and PWM resources suit duty-cycle and edge-sensitive control tasks. Twenty-five available I/O pins leave room for direction, enable, feedback, and interlock signals. The microcontroller should not drive high-current loads directly; use suitable driver transistors or driver ICs, add flyback protection for inductive loads, and enforce hardware shutdown paths for safety-critical outputs.
推薦
Environmental Monitoring Stations
The PIC16F886-I/SO fits compact environmental monitors that combine several analog sensors with local status indicators and periodic data transfer. Its 11 ADC channels can monitor temperature, humidity, light, soil moisture, or analog gas-sensor outputs without requiring multiple converter ICs. The 14 KB Flash area accommodates sampling routines, sensor compensation, threshold logic, and communication handlers, while EEPROM can preserve calibration values. For battery-powered deployments, evaluate the device's low-power operating modes, disable unused peripherals, and use the internal oscillator when suitable to reduce external clock-component requirements.
推薦
Programmable Instrumentation
The PIC16F886-I/SO is appropriate for programmable measurement instruments that must combine analog input conditioning, digital controls, and a simple operator interface. Ten-bit ADC resolution supports many process-monitoring and bench-instrument applications, while 25 I/O pins can support switches, indicators, relays, and display-control signals. The 20 MHz PIC16 core and compact instruction set allow measurement sequencing, averaging, linearization, and limit handling in one controller. For laboratory accuracy requirements, evaluate the complete analog signal chain rather than relying on ADC resolution alone, including reference-voltage error, noise, source impedance, and calibration method.
推薦
Power Conversion and Battery Systems
The PIC16F886-I/SO can serve as the supervisory controller in small power-conversion or battery-managed products. Its ADC channels can monitor supply voltage, load current, temperature, or converter feedback, while its digital I/O can coordinate enables, fault flags, and sequencing signals. The 20 MHz operating speed is sufficient for supervisory loops and protection logic, but the MCU should remain separate from high-power switching stages. Use resistor-divider or current-sense networks with appropriately rated components, and program safe shutdown behavior for undervoltage, overtemperature, and communication-loss conditions.
推薦
Embedded Access and Control Panels
The PIC16F886-I/SO supports compact access-control and equipment panels that combine digital inputs, indicator outputs, credential or sensor interfaces, and local status reporting. Its 25 I/O pins offer practical headroom for buttons, LEDs, relays, and communication signals, while the 14 KB Flash memory accommodates protocol handling and application logic. The 11-channel ADC can additionally monitor analog input modules when required. Design the firmware around debounce, watchdog recovery, event logging, and controlled outputs, and keep programming access available for configuration, diagnostics, and field updates.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16F886-I/SO — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC16F886-E/SO | PIC16F887-I/SO | PIC16F883-I/SO | PIC16F884-I/SO | PIC16F882-I/SO |
|---|---|---|---|---|---|---|
| Package | 28-pin SOIC | 28-pin SOIC | 28-pin SOIC | 28-pin SOIC | 28-pin SOIC | 28-pin SOIC |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Temperature Grade | -I industrial grade | -E grade, lower limit 0°C versus -40°C | -I industrial grade | -I industrial grade | -I industrial grade | -I industrial grade |
主要差異化特點
- Broader analog-input capacity within the same 28-pin SOIC family (對比PIC16F882-I/SO)
- Retains full PIC16F886 resources when changing temperature grade (對比PIC16F886-E/SO)
- Selectable resource levels within one pin-compatible PIC16 family (對比PIC16F883-I/SO)
設計說明
Assign the PCB footprint from the exact 28-pin SOIC package drawing in the Microchip family data sheet, including lead pitch, lead width, and body dimensions. Confirm that every selected alternative uses the same 28-pin SOIC configuration before approving a drop-in substitution. Keep the programming interface accessible, place decoupling capacitors near the supply pins, and maintain the manufacturer-recommended analog grounding and return-current arrangement.
Do not treat a shared 28-pin package as proof of identical firmware behavior. Check ADC channel availability, peripheral assignments, interrupt vectors, configuration bits, and register differences between PIC16F886, PIC16F887, PIC16F884, PIC16F883, and PIC16F882 devices. Reassemble and retest the complete firmware after any substitution, particularly when the original design uses all 11 ADC channels or enhanced PWM resources.
Route analog inputs away from switching nodes, high-current return paths, and digital timing edges. Where a sensor output cannot drive the ADC sampling network directly, add suitable buffering and ensure the source impedance remains within the electrical limits defined in the family data sheet. A low-noise reference and correctly placed bypass capacitors are important because converter resolution does not remove errors introduced by the external analog front end.
Use the exact operating and absolute-maximum voltage limits from the family data sheet when designing the 5 V, 3.3 V, or other supported supply arrangement. Do not infer a complete electrical limit from the 2.5 V to 5 V classification shown in comparison listings. Provide local decoupling, maintain a defined power-up sequence for attached loads, and verify brownout or reset behavior before releasing the product to production.
Confirm the temperature range when changing from the -I suffix to the -E suffix. The -I option supports industrial temperature conditions, while the -E option reduces low-temperature capability to 0°C. This 40°C difference can make the otherwise identical package unsuitable for cold industrial, outdoor, or automotive-adjacent installations. Record the approved suffix in the BOM and mechanical inspection documentation to prevent mixed-grade assembly.
合規資訊
A distributor listing mentions RoHS, but the exact certification status and supporting declaration are not stated. Obtain the current compliance documentation from Microchip Technology before production release. The microcontroller is not identified as an AEC-Q100-qualified automotive device.
