PIC16F883-I/ML - 8-bit 20MHz 7KB Flash MCU 28-QFN | Microchip
MPN: PIC16F883-I/ML ✓ Hoạt độngPIC16F883-I/ML Tóm tắt
An 8-bit flash microcontroller is a single-chip computer that integrates a CPU, non-volatile program memory, RAM, EEPROM, and configurable peripherals into one package. The PIC16F883 fits the hierarchy: microcontroller -> embedded processor -> integrated circuit. Compared to 16/32-bit MCUs, an 8-bit part offers the best price/performance fit for simple control loops, sensor interfacing, and user-interface logic where instruction efficiency and low power matter more than raw computational throughput.
Key features include 14 channels of 10-bit ADC, two 8-bit timers plus one 16-bit timer, an enhanced USART, an MSSP (SPI/I2C) peripheral, a 5-bit DAC, a comparator module, and nanoWatt power management with multiple idle and sleep modes. The 28-QFN footprint gives the device a compact 6x6 mm PCB area, making it suitable for space-constrained designs. Self-programming support allows in-application firmware upgrades without an external programmer.
Typical applications include consumer white goods and small appliance controls, low-cost sensor hubs with I2C/SPI devices, battery-powered handheld instruments, automotive body electronics modules (non-safety), LED lighting controllers, and hobbyist/educational platforms. The wide -40C to +85C industrial range and nanoWatt sleep currents extend the part to energy-harvesting and remote-sensor designs. The device is supported by MPLAB X IDE, XC8 compiler, and the full PICkit/debug toolchain.
When designing with this part, confirm the 28-QFN layout has adequate ground copper for thermal dissipation at high I/O toggle rates, and reserve an ICSP header footprint even if not populated, to simplify in-field firmware updates. Always check that 25 available I/O lines are sufficient for the target application; if more are needed, migrate to a 40/44-pin PIC16F884/7 variant in the same family.
Bộ thay thế dễ dàng lắp đặt cho PIC16F883-I/ML — 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 PIC16F883-I/ML (cùng hình factor và footprint) — khác nhau ở Package, Timers, Program Memory (Flash), ADC, Operating Temperature.
PIC16F882-I/ML
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F886-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F884-I/ML
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F883-I/SP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F883-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F883-I/ML Tỷ lệ tối đa & tính chất điện
| Architecture | PIC16 8-bit RISC |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| RAM | 256 B (data sheet snippet says 256 RAM) |
| EEPROM | 256 B |
| Maximum CPU Frequency | 20 MHz |
| Operating Voltage (VDD) | 2.0 V to 5.5 V |
| Digital I/O Pins | 25 |
| ADC | 10-bit, 14 channels |
| Timers | 2 x 8-bit + 1 x 16-bit |
| Capture/Compare/PWM (CCP) | 1 enhanced CCP + 1 CCP |
| Communication Peripherals | 1 x EUSART, 1 x MSSP (SPI / I2C) |
| Comparators | 2 |
| DAC | 5-bit (1 channel, per PIC16F88x family) |
| Instruction Set | 35 single-word instructions |
| Nhiệt độ hoạt động | -40C to +85C (industrial, 'I' suffix) |
| Hộp | 28-pin QFN (6x6 mm), 'ML' suffix |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | MSL1 (per Microchip QFN handling note) |
| Trạng thái RoHS | Compliant |
| Self-Programming | Yes (in-application programming) |
| Power-Saving Modes | nanoWatt technology (idle, sleep, low-power modes) |
Cấu hình chân PIC16F883-I/ML
| Chân 1 | RA0/AN0 — Digital I/O / analog input 0 |
| Chân 2 | RA1/AN1 — Digital I/O / analog input 1 |
| Chân 3 | RA2/AN2 — Digital I/O / analog input 2 |
| Chân 4 | RA3/AN3 — Digital I/O / analog input 3 / VREF+ |
| Chân 5 | RA4/AN4 — Digital I/O / analog input 4 / Timer0 clock |
| Chân 6 | RA5/AN5 — Digital I/O / analog input 5 |
| Chân 7 | RA6/OSC2 — Digital I/O / oscillator output |
| Chân 8 | RA7/OSC1 — Digital I/O / oscillator input |
| Chân 9 | VSS — Ground |
| Chân 10 | VDD — Positive supply (2.0-5.5 V) |
| Chân 11 | RB0/INT — Digital I/O / external interrupt |
| Chân 12 | RB1 — Digital I/O |
| Chân 13 | RB2 — Digital I/O |
| Chân 14 | RB3/PGM — Digital I/O / LVP programming |
| Chân 15 | RB4 — Digital I/O / interrupt-on-change |
| Chân 16 | RB5 — Digital I/O / interrupt-on-change |
| Chân 17 | RB6/PGC — Digital I/O / ICSP clock |
| Chân 18 | RB7/PGD — Digital I/O / ICSP data |
| Chân 19 | RC0 — Digital I/O |
| Chân 20 | RC1 — Digital I/O |
| Chân 21 | RC2 — Digital I/O |
| Chân 22 | RC3 — Digital I/O |
| Chân 23 | RC4 — Digital I/O |
| Chân 24 | RC5 — Digital I/O |
| Chân 25 | RC6 — Digital I/O / TX |
| Chân 26 | RC7 — Digital I/O / RX |
| Chân 27 | MCLR/VPP — Master clear / programming voltage |
| Chân 28 | NC — Not connected on QFN package, internally floating |
Ứng dụng tiêu biểu
PIC16F883-I/ML phù hợp cho 6 Áp dụngs: Consumer Appliance Control, Battery-Powered Sensor Hub, LED Lighting Controller, Automotive Body Electronics, Industrial Control Panel, Educational / Hobbyist Platform.
Consumer Appliance Control
The PIC16F883-I/ML fits consumer appliance controllers (coffee machines, washing-machine sub-boards, microwave keypads, small kitchen appliances) where 25 I/O pins drive segment LEDs, key matrices, triac-driven heaters, and buzzer PWM. Its 20 MHz core handles FSM control plus time-multiplexed display scanning, and the 7 KB flash is enough for menu logic, fault handling, and EEPROM-stored user preferences. The 14-channel 10-bit ADC reads NTC temperature sensors and mains-voltage zero-cross detectors without external signal conditioning. nanoWatt sleep drops standby current below 100 uA so Energy Star idle rules are met.
Được đề xuất
Battery-Powered Sensor Hub
In battery-powered sensor hubs (wireless thermostats, environmental monitors, IoT edge nodes), the PIC16F883-I/ML acts as the always-on controller that wakes on interrupt, samples I2C sensors through its MSSP port, and forwards results to a co-processor over EUSART. The 2.0 V minimum VDD lets the design run from a single CR2032 or 2x AA down to end-of-life, and nanoWatt sleep currents under 1 uA extend battery life to multi-year levels. The 25 I/O give plenty of headroom for indicator LEDs, pushbuttons, and a wake-up accelerometer interrupt without external glue logic.
Được đề xuất
LED Lighting Controller
The PIC16F883-I/ML drives mid-power LED lighting fixtures where its enhanced CCP module produces a 10-bit PWM at up to 20 kHz, well above the flicker-fusion threshold and inside the analog dimming band. The 5-bit on-chip DAC plus two comparators enable constant-current regulation by modulating the PWM duty cycle against a sense-resistor feedback - no external op-amp required. The 14 ADC channels can read multiple RGB+W channels and a thermistor for thermal foldback, while 25 I/O lines manage DMX-style address switches and status LEDs in architectural installations.
Được đề xuất
Automotive Body Electronics
In non-safety automotive body modules (window switches, seat controllers, mirror adjusters, HVAC panel boards) the PIC16F883-I/ML supplies 25 I/O for switch matrix scanning, relay drivers, and LIN/EUSART comms. Its -40C to +85C industrial range meets cabin temperature requirements, while the 14-channel ADC monitors rheostat dimmers and position-feedback pots. nanoWalt sleep below 1 uA is critical for quiescent-current budgets on body-control ECUs. Note: PIC16F88x parts are not AEC-Q100 qualified, so for safety-relevant or under-hood designs migrate to PIC16F1xxx or dsPIC variants.
Được đề xuất
Industrial Control Panel
The PIC16F883-I/ML sits in industrial control panels (small PLCs, HMI pushbutton boards, motor starters, instrumentation front-ends) where its enhanced USART connects to an HMI display or Modbus RTU master while the MSSP links to SPI ADC or DAC chips. The 25 I/O drive status LEDs, keypads, and 24 V optically-isolated inputs through resistor dividers. The 28-QFN footprint keeps the panel board small enough for DIN-rail enclosures, and the -40C to +85C range covers factory-floor temperature swings. Self-programming lets field firmware updates run over the panel's own UART without opening the enclosure.
Được đề xuất
Educational / Hobbyist Platform
The PIC16F883-I/ML is a popular choice for education and hobby projects because only 35 single-word instructions must be learned, MPLAB X IDE and the XC8 compiler are free, and the PICkit 3/4 starter kits debug at 5 V with no external power supply. The 25 I/O plus 14 ADC inputs expose students to digital I/O, PWM, ADC, I2C, SPI, and UART in a single chip. The 7 KB flash fits moderate C projects, and the 28-QFN breakout boards sold by hobby vendors make hand-soldering accessible for learners transitioning from PDIP PICs.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F883-I/ML — 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/ML | PIC16F886-I/ML | PIC16F884-I/ML | PIC16F883-I/SP | PIC16F883-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | QFN-28 (6x6) | QFN-28 (6x6) - same | QFN-28 (6x6) - same | QFN-28 (6x6) - same | SPDIP-28 - pin-equivalent, through-hole | SOIC-28 - pin-equivalent, wide SO |
| Program Flash | 7 KB | 3.5 KB | 14 KB | 7 KB | 7 KB | 7 KB |
| RAM | 256 B | 128 B | 368 B | 256 B | 256 B | 256 B |
| EEPROM | 256 B | 128 B | 256 B | 256 B | 256 B | 256 B |
| Maximum Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| I/O Pins | 25 | 25 | 25 | 25 (28-QFN variant) | 25 | 25 |
| ADC Channels | 14 x 10-bit | 11 x 10-bit | 11 x 10-bit | 14 x 10-bit | 14 x 10-bit | 14 x 10-bit |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- More ADC channels than lower-tier PIC16F88x siblings (vsPIC16F882-I/ML)
- Half the flash of the PIC16F886, useful when code barely fits 7 KB (vsPIC16F886-I/ML)
- Pin-compatible QFN with PIC16F884 for upgrade to 40/44-pin family (vsPIC16F884-I/ML)
Ghi chú thiết kế
The 28-pin QFN (6x6) has a center exposed thermal pad that MUST be soldered to a PCB pad tied to VSS for mechanical reliability and thermal dissipation. Per Microchip QFN handling guidelines (DS41291 section 'Package Marking'), failure to solder the thermal pad risks board-flex fractures and reduced thermal performance. Place a via-array under the pad to ground and flood the top layer with ground copper to spread heat. Keep high-speed traces (USART, MSSP clock) at least 5x trace-width away from analog ADC traces to minimize crosstalk.
Place a 100 nF ceramic decoupling capacitor as close as possible to VDD (pin 11) and a bulk 10 uF tantalum or ceramic at the board's power entry. nanoWalt sleep currents are sensitive to VDD ripple; per the PIC16F88x datasheet, a noisy supply raises sleep current from under 1 uA to tens of microamps. For battery applications, add a 100 kohm + 100 nF RC on MCLR/VPP to prevent spurious resets, and tie unused I/O to defined logic levels (not floating) to avoid shoot-through current.
Three common pitfalls with the PIC16F883-I/ML: (1) Do not connect RC3/RC4 to I2C without 4.7 kohm pull-ups - the MSSP open-drain outputs require external pull-ups for reliable I2C; (2) When using the internal oscillator, ensure OSCCON is locked before timing-critical peripherals to avoid drift on first power-up; (3) The ICSP pins RB6/RB7 cannot be repurposed as plain GPIO in LVP mode - use high-voltage programming in production or ensure firmware never drives these pins as outputs during reset. Refer to Microchip's PICkit 3 baseline tool note for further debug-pin caveats.
Keep the analog VREF+ rail (RA3) star-routed with a 10 uF + 100 nF decoupling pair, and avoid running digital return currents under the analog section. For ADC accuracy better than 8 ENOB, drive the ADC from a low-impedance source (op-amp buffer such as MCP6002) and average 16+ samples. Place the 32.768 kHz crystal (if used for Timer1) within 1 cm of the MCU with a guard ground to keep noise out of the timebase.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - use PIC16F1xxx/dsPIC automotive parts for AEC-Q100 designs. Lead-free matte-tin finish per Microchip package marking note. Halogen-free status not explicitly stated on the verified product page.
