PIC16F886-I/SP - 20MHz 8-Bit Flash MCU | Microchip Technology
MPN: PIC16F886-I/SP ✓ Hoạt độngPIC16F886-I/SP Tóm tắt
A microcontroller is a programmable system-on-chip that integrates a CPU, Flash program memory, data memory, timers, analog converters, communication peripherals, and I/O pins. Within the product hierarchy, the PIC16F886 is a PIC16 8-bit MCU, a CMOS embedded-control semiconductor commonly used in industrial controllers, instrumentation, consumer products, and compact automation systems. Its 35 single-word instructions simplify firmware development while retaining self-programming and in-circuit debugging support.
The PIC16F886-I/SP provides 11 channels of 10-bit analog-to-digital conversion, two comparators, one conventional capture/compare/PWM module, and one enhanced capture/compare/PWM module. These resources allow a single device to acquire analog sensor data, perform closed-loop control, generate PWM outputs, and communicate with external peripherals. The manufacturer also identifies 24 I/O pins in the device family, making the part suitable for mixed analog and digital control boards.
Communication features include I2C, SPI, and UART/USART, as identified in the product listing, allowing the MCU to interface with sensors, displays, transceivers, data converters, and other embedded systems. The 368-byte RAM supports working variables and stack operations, while 256 bytes of EEPROM preserves calibration data, configuration values, counters, or serial numbers when the supply is removed. Self-programming supports field updates in applications where firmware changes must be retained in Flash.
Typical applications include temperature controllers, motor and valve controllers, panel meters, programmable logic controllers, sensor nodes, power-supply controllers, and compact industrial automation equipment. The 28-pin through-hole package also makes the MCU practical for prototypes, education systems, and legacy control boards that require a socketed DIP rather than a fine-pitch surface-mount package.
For reliable designs, verify every pin function against the manufacturer pin-description table and preserve the required MCLR and decoupling connections. Use the device's application guidance to configure oscillator, analog-reference, comparator, communications, and brown-out functions. This page combines the device specifications, package information, drop-in alternatives, comparison guidance, and practical design notes needed for component selection and PCB planning.
Bộ thay thế dễ dàng lắp đặt cho PIC16F886-I/SP — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16F886-I/SP (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Timers, ADC, Self-Programming.
PIC16F882-I/SP
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F883-I/SP
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F884-I/SP
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F887-I/SP
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F876A-I/SP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F886-I/SP Tỷ lệ tối đa & tính chất điện
| Microcontroller Type | 8-bit CMOS Flash microcontroller |
| Maximum CPU Frequency | 20 MHz |
| Program Memory | 14 KB (8K x 14 words) Flash |
| Data RAM | 368 bytes |
| EEPROM | 256 bytes (256 x 8 bits) |
| Programmable Instruction Set | 35 single-word instructions |
| I/O Pin Count | 24 pins |
| ADC Resolution | 10 bits |
| ADC Channels | 11 channels |
| Comparator Count | 2 comparators |
| Capture/Compare/PWM Modules | 1 standard CCP and 1 enhanced CCP |
| Serial Interfaces | I2C, SPI, and UART/USART |
| Self-Programming | Supported |
| In-Circuit Debug | ICD supported |
| Hộp | 28-pin SPDIP |
| Kiểu lắp đặt | Through-hole |
| Trạng thái vòng đời | Active |
| Programming | In-circuit serial programming |
Cấu hình chân PIC16F886-I/SP
| Chân 1 | MCLR/VPP/RE3 — Programmable voltage input and reset input; also digital port RE3 on devices with extended I/O |
| Chân 2 | RA0/AN0/C12IN0-/C2OUT — Analog input and multiplexed digital I/O |
| Chân 3 | RA1/AN1/C12IN1- — Analog input and multiplexed digital I/O |
| Chân 4 | RA2/AN2/VREF-/CVREF — Analog input, voltage reference, and multiplexed digital I/O |
| Chân 5 | RA3/AN3/VREF+ — Analog input and positive voltage reference |
| Chân 6 | RA4/T0CKI/C1OUT — Timer clock input, comparator output, and digital I/O |
| Chân 7 | RA5/AN4/SS/C2OUT — Analog input, synchronous serial clock, comparator output, and digital I/O |
| Chân 8 | VSS — Ground connection |
| Chân 9 | RA7/OSC1/CLKIN — Oscillator input and digital I/O |
| Chân 10 | RA6/OSC2/CLKOUT — Oscillator output, clock output, and digital I/O |
| Chân 11 | RC0/T1OSO/T1CKI — Timer oscillator and timer clock input |
| Chân 12 | RC1/T1OSI/CCP2 — Timer oscillator input and capture/compare/PWM output |
| Chân 13 | RC2/CCP1 — Capture/compare/PWM output and digital I/O |
| Chân 14 | RC3/SCK/SCL — Synchronous serial clock and digital I/O |
| Chân 15 | RC4/SDI/SDA — Synchronous serial data input and digital I/O |
| Chân 16 | RC5/SDO — Synchronous serial data output and digital I/O |
| Chân 17 | RC6 — Digital I/O |
| Chân 18 | RC7 — Digital I/O |
| Chân 19 | VSS — Ground connection |
| Chân 20 | VDD — Positive power supply connection |
| Chân 21 | RA8 — Digital I/O |
| Chân 22 | RA9 — Digital I/O |
| Chân 23 | RB0/INT — Digital I/O and external interrupt input |
| Chân 24 | RB1 — Digital I/O |
| Chân 25 | RB2 — Digital I/O |
| Chân 26 | RB3 — Digital I/O |
| Chân 27 | RB4 — Digital I/O |
| Chân 28 | RB5 — Digital I/O |
Ứng dụng tiêu biểu
PIC16F886-I/SP phù hợp cho 6 Áp dụngs: Industrial Sensor and Control Node, Temperature and Environmental Controller, Motor and Valve Control, Power-Supply Controller, Programmable Logic Controller, Instrumentation and Data Logger.
Industrial Sensor and Control Node
PIC16F886-I/SP suits compact sensor-and-control nodes that must measure multiple analog inputs and retain local configuration. Its 11-channel, 10-bit ADC can sample pressure, temperature, level, or process inputs, while 256 bytes of EEPROM preserves calibration coefficients and device settings. The two comparators support threshold detection, while standard and enhanced CCP modules provide timing, capture, and PWM functions. I2C and SPI permit connection to sensors and digital converters, and UART/USART supports commissioning or supervisory communications. At 20 MHz, the device offers more timing margin than required for many slow control loops while keeping the firmware model simple for the 35-instruction PIC16 architecture.
Được đề xuất
Temperature and Environmental Controller
PIC16F886-I/SP provides enough analog and timer capacity for a dedicated environmental controller. The 11-channel 10-bit ADC can support multiple temperature, humidity, or air-quality sensors, while comparator inputs can handle simple limit thresholds without relying entirely on software conversion. The enhanced CCP module is useful for driving heaters, fans, or other PWM-controlled loads, and the standard CCP module can manage an additional timing or output function. EEPROM can retain calibration curves and set points, and self-programming can support controlled firmware revisions. The 28-pin SPDIP package is especially convenient for panel-mount and through-hole control boards.
Được đề xuất
Motor and Valve Control
PIC16F886-I/SP can act as the central controller in small motor, actuator, or proportional-valve systems. Its enhanced CCP module supports precise period and duty-cycle generation, while the standard CCP module adds another independent timing resource. The 20 MHz CPU provides deterministic timing for debouncing, ramping, and closed-loop updates, and the 11 ADC channels can monitor current, position, or analog feedback. Two comparators can perform fast hardware threshold detection for limit or fault signals. I2C, SPI, and UART/USART allow the controller to connect to drivers, position sensors, and supervisory electronics without requiring a separate communication controller.
Được đề xuất
Power-Supply Controller
PIC16F886-I/SP is appropriate for supervisory and programmable power-system control because it combines 10-bit analog measurement with two comparators, multiple timers, and serial interfaces. The ADC can monitor output voltage, input voltage, or current-shunt signals, while the comparators provide fast threshold actions for overvoltage or undervoltage conditions. CCP outputs can support synchronization, boost, or fan-control functions, and UART/USART can report operating data to a host. EEPROM preserves configuration parameters across power cycles. Firmware must enforce safe states during startup, fault detection, and firmware updates so that control outputs remain deterministic.
Được đề xuất
Programmable Logic Controller
PIC16F886-I/SP fits small PLC and relay-control boards where a 28-pin through-hole package, EEPROM, and flexible I/O are useful. The 24 I/O pins can distribute digital inputs and outputs, while the 11 analog channels can simplify mixed signal control panels without adding a separate ADC. Two comparators can handle high-speed limit inputs, and the timer modules can perform pulse counting, timing, and PWM generation. I2C and SPI can connect to expanders or field-bus modules, while UART/USART simplifies programming and diagnostic communication. Its 20 MHz operation provides useful timing headroom for multi-loop control and debounce handling.
Được đề xuất
Instrumentation and Data Logger
PIC16F886-I/SP can serve as the acquisition controller in compact instrumentation where 10-bit measurement resolution and nonvolatile configuration storage are sufficient. The 11 ADC channels reduce the need for multiplexer hardware, and the 368-byte RAM provides space for buffers, calibration tables, and communication framing. UART/USART can stream sampled data to a host, while I2C or SPI can connect to external memory, real-time-clock components, or precision converters. The 256-byte EEPROM is appropriate for serial numbers, calibration offsets, and operating counters. For long acquisition runs, add external nonvolatile storage if the application requires more capacity than the internal EEPROM provides.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F886-I/SP — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16F882-I/SP | PIC16F883-I/SP | PIC16F884-I/SP | PIC16F887-I/SP | PIC16F876A-I/SP |
|---|---|---|---|---|---|---|
| Package | 28-pin SPDIP | 28-pin SPDIP | 28-pin SPDIP | 28-pin SPDIP | 28-pin SPDIP | 28-pin SPDIP |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Architecture | 8-bit PIC16 | 8-bit PIC16 | 8-bit PIC16 | 8-bit PIC16 | 8-bit PIC16 | 8-bit PIC16 |
| Maximum CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Program Memory | 14 KB Flash | 14 KB Flash | 14 KB Flash | 14 KB Flash | 14 KB Flash | 14 KB Flash |
| RAM | 368 bytes | 128 bytes | 256 bytes | 256 bytes | 368 bytes | 368 bytes |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| ADC Channels | 11 channels at 10 bits | 8 channels at 10 bits | 11 channels at 10 bits | 11 channels at 10 bits | 11 channels at 10 bits | 8 channels at 10 bits |
| Comparator Count | 2 comparators | 2 comparators | 2 comparators | 2 comparators | 2 comparators | 2 comparators |
| Serial Interfaces | I2C, SPI, UART/USART | I2C, SPI | I2C, SPI, UART/USART | I2C, SPI, UART/USART | I2C, SPI, UART/USART | I2C, SPI, UART/USART |
Bảo phân biệt quan trọng
- Broader analog conversion capability (vsPIC16F876A-I/SP)
- Full UART/USART and SPI communications (vsPIC16F882-I/SP)
- Matched RAM and program-memory capacity (vsPIC16F884-I/SP)
- Enhanced CCP and comparator integration (vsPIC16F883-I/SP)
Ghi chú thiết kế
Place the VDD bypass capacitor at the 28-pin device's supply pins and provide adequate return-path copper to both VSS connections. Use the manufacturer-recommended decoupling network and keep sensitive analog and comparator traces away from switching nodes. Where MCLR is used, add the specified pull-up arrangement and keep the reset net short and free from capacitive loading that could cause false resets.
Assign every net from the 28-pin pin-description table rather than treating each port pin as a dedicated function. The device multiplexes oscillator, timer, comparator, serial, and analog functions onto the same leads. For through-hole construction, observe the manufacturer DIP footprint and pin-1 marking, and avoid placing tall components or sockets where they interfere with adjacent component access.
Route analog inputs with short traces, guard spacing from switching outputs, and connect VREF+/VREF- according to the selected analog configuration. If the ADC and comparators share an input pin, establish whether the pin must remain configured for analog use to prevent interference between converters. Keep oscillator traces short and away from analog inputs and high-current switching paths.
Do not assume that identical SPDIP packages imply identical peripheral functions. Before substituting another PIC16 device, compare MCLR behavior, oscillator pins, ADC inputs, comparator outputs, CCP assignments, and serial functions. Also check that the replacement supports the existing programming configuration and operating voltage range, then run boundary tests across input voltage and temperature.
Thông tin tuân thủ
The device is listed as active. RoHS, REACH, lead-free, halogen-free, and conflict-minerals declarations are not stated in the product information used for this record.
