PIC16F18876T-I/ML - 8-Bit 32MHz 28KB Flash MCU | Microchip
MPN: PIC16F18876T-I/ML ✓ Hoạt độngPIC16F18876T-I/ML Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path. It belongs to the broader category of microcontrollers, which sit within embedded processors and the wider semiconductor hierarchy. PIC microcontrollers combine a CPU core, non-volatile Flash program memory, volatile RAM, EEPROM data storage, and a rich set of peripherals (ADC, DAC, comparators, PWM, communication ports, timers) in one package, making them self-contained computing platforms for sensor interfacing, control loops, and human-machine interface applications.
The PIC16F18876T-I/ML integrates 24-channel 10-bit ADC with automated ADC2, a 5-bit/8-bit DAC, comparators with hysteresis, PWM/SMT/HLT/SCAN/CRC peripherals, Zero-Cross Detect (ZCD), Peripheral Pin Select (PPS), EUSART, SPI, and I2C. CIP blocks operate autonomously without CPU intervention, freeing the core for application logic and reducing firmware complexity. XLP technology delivers nanoWatt sleep currents for battery-powered products.
The device is built on Microchip's enhanced mid-range 8-bit core with a 14-bit instruction word and a hardware multiplier, supporting C-compiled and assembly firmware. Its 44-pin QFN package provides 36 I/O pins and an exposed pad for thermal dissipation, making the part suitable for space-constrained industrial, IoT, sensor, and consumer designs. The Functional Safety (FuSa) support assists in IEC 61508 SIL-capable system development.
Typical applications include IoT sensor nodes, industrial sensor interfaces, battery-powered metering, LED lighting controllers, low-power remote controls, and home appliance control panels. The wide operating voltage range supports both 3.3V and 5V rails, while XLP modes allow multi-year coin-cell operation in duty-cycled sensor designs.
When designing with this MCU, allocate pins early using the Peripheral Pin Select (PPS) mapping to maximize PCB layout flexibility. Ensure the exposed pad is soldered to a sufficiently large copper pour for thermal performance and ground reference. Plan EEPROM endurance and wear-leveling in firmware if persistent data logging is required.
This page synthesizes distributor pricing, drop-in alternatives within the same 44-QFN footprint, and practical design notes drawn from Microchip's family datasheet and reference designs - context not aggregated in any single distributor listing.
Bộ thay thế dễ dàng lắp đặt cho PIC16F18876T-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 PIC16F18876T-I/ML (cùng hình factor và footprint) — khác nhau ở Package, ADC, Program Memory (Flash), Core Architecture, Data EEPROM.
PIC16F18876-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18875T-I/ML
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F18855-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18857-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18856T-I/ML
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F18876T-I/ML Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit PIC enhanced mid-range |
| Family | PIC16F1885X/7X (PIC16F18876) |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| Data RAM | 2 KB |
| Data EEPROM | 256 B |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 2.3V to 5.5V |
| ADC | 10-bit, up to 24 channels (ADC2 with automated features) |
| DAC | 5-bit / 8-bit |
| Comparators | Yes (with hysteresis) |
| PWM / SMT / CWG / ZCD | Yes |
| Communication | EUSART, SPI, I2C |
| Peripheral Pin Select (PPS) | Yes |
| CRC/SCAN, HLT, WWDT | Yes |
| Low-Power Technology | XLP (eXtreme Low Power) |
| Functional Safety (FuSa) | Yes |
| Nhiệt độ hoạt động | -40C to +85C (Industrial -I) |
| Hộp | 44-pin QFN (8x8 mm) with exposed pad (ML) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16F18876T-I/ML
| Chân 1 | RE3/MCLR — Digital I/O / Master Clear (reset) input |
| Chân 2 | RA0 — Digital I/O / analog input |
| Chân 3 | RA1 — Digital I/O / analog input |
| Chân 4 | RA2 — Digital I/O / analog input |
| Chân 5 | RA3 — Digital I/O / analog input |
| Chân 6 | RA4 — Digital I/O / analog input |
| Chân 7 | RA5 — Digital I/O / analog input |
| Chân 8 | RA6 — Digital I/O / analog input |
| Chân 9 | RA7 — Digital I/O / analog input |
| Chân 10 | VSS — Ground reference |
| Chân 11 | VDD — Positive supply voltage (2.3-5.5V) |
| Chân 12 | RB0 — Digital I/O / analog / PPS-remappable |
| Chân 13 | RB1 — Digital I/O / analog / PPS-remappable |
| Chân 14 | RB2 — Digital I/O / analog / PPS-remappable |
| Chân 15 | RB3 — Digital I/O / analog / PPS-remappable |
| Chân 16 | RB4 — Digital I/O / analog / PPS-remappable |
| Chân 17 | RB5 — Digital I/O / analog / PPS-remappable |
| Chân 18 | RB6 — Digital I/O / analog / PPS-remappable |
| Chân 19 | RB7 — Digital I/O / analog / PPS-remappable |
| Chân 20 | VSS — Ground reference |
| Chân 21 | VDD — Positive supply voltage (2.3-5.5V) |
| Chân 22 | RC0 — Digital I/O / analog / PPS-remappable |
| Chân 23 | RC1 — Digital I/O / analog / PPS-remappable |
| Chân 24 | RC2 — Digital I/O / analog / PPS-remappable |
| Chân 25 | RC3 — Digital I/O / analog / PPS-remappable |
| Chân 26 | RC4 — Digital I/O / analog / PPS-remappable |
| Chân 27 | RC5 — Digital I/O / analog / PPS-remappable |
| Chân 28 | RC6 — Digital I/O / analog / PPS-remappable |
| Chân 29 | RC7 — Digital I/O / analog / PPS-remappable |
| Chân 30 | VSS — Ground reference |
| Chân 31 | VDD — Positive supply voltage (2.3-5.5V) |
| Chân 32 | RD0 — Digital I/O / analog / PPS-remappable |
| Chân 33 | RD1 — Digital I/O / analog / PPS-remappable |
| Chân 34 | RD2 — Digital I/O / analog / PPS-remappable |
| Chân 35 | RD3 — Digital I/O / analog / PPS-remappable |
| Chân 36 | RD4 — Digital I/O / analog / PPS-remappable |
| Chân 37 | RD5 — Digital I/O / analog / PPS-remappable |
| Chân 38 | RD6 — Digital I/O / analog / PPS-remappable |
| Chân 39 | RD7 — Digital I/O / analog / PPS-remappable |
| Chân 40 | RE0 — Digital I/O / analog / PPS-remappable |
| Chân 41 | RE1 — Digital I/O / analog / PPS-remappable |
| Chân 42 | RE2 — Digital I/O / analog / PPS-remappable |
| Chân 43 | AVSS — Analog ground reference |
| Chân 44 | AVDD — Analog positive supply |
Ứng dụng tiêu biểu
PIC16F18876T-I/ML phù hợp cho 6 Áp dụngs: IoT Sensor Nodes, Industrial Sensor Interface, Battery-Powered Metering, LED Lighting Controllers, Low-Power Remote Controls, Home Appliance Control Panels.
IoT Sensor Nodes
The PIC16F18876T-I/ML fits IoT sensor nodes because its XLP nanoWatt sleep currents extend battery life into the multi-year range while the 24-channel 10-bit ADC2 handles multiple analog sensors with automated averaging and threshold detection. The 28KB Flash hosts a sensor-fusion state machine plus a UART or SPI command parser for radio modules. PPS pin mapping lets a single PCB layout serve multiple sensor SKUs by remapping digital functions, reducing hardware variants.
Được đề xuất
Industrial Sensor Interface
Industrial sensor interfaces demand robust ADCs, isolated communication, and wide voltage tolerance - all delivered by the PIC16F18876T-I/ML. The 10-bit ADC2 with 24 channels multiplexes multiple 4-20mA or 0-10V analog inputs through signal conditioning. The 2.3-5.5V operating range tolerates industrial 24V-bus-derived rails after regulation. The CRC/SCAN and HLT peripherals support functional-safety loops required in IEC 61508-capable machinery.
Được đề xuất
Battery-Powered Metering
Battery-powered metering benefits from the PIC16F18876T-I/ML's XLP sleep modes (microamp-class idle with RAM retention) and 32-bit timer/SMT for long-interval wake cycles. The 256-byte EEPROM stores meter calibration and tamper counters without external NVRAM, while the 28KB Flash supports DLMS/COSEM or simple Modbus protocol stacks. The 44-QFN exposed pad keeps the device within compact metering enclosures while sinking RTC and sensor quiescent currents.
Được đề xuất
LED Lighting Controllers
LED lighting controllers require multiple PWM channels, high-resolution dimming, and reliable communication - all delivered by the PIC16F18876T-I/ML. The integrated PWM, CWG (Complementary Waveform Generator), and SMT (Signal Measurement Timer) handle multi-channel LED drivers and zero-cross detection for TRIAC dimming. The DAC and comparators close current-feedback loops for constant-current drivers. CIP blocks offload dimming math from the CPU, freeing cycles for DALI or DMX protocol parsing.
Được đề xuất
Low-Power Remote Controls
Low-power remote controls rely on the PIC16F18876T-I/ML's nanoWatt sleep modes, where the part draws single-digit microamps waiting for a button interrupt while preserving RAM state. The 32MHz CPU wakes quickly to drive IR/PWM modulation and parse incoming RF commands. The 28KB Flash stores a full key matrix scanner plus a pairing/encryption library. The 44-QFN exposed-pad package fits slim handheld enclosures without thermal concerns at low duty cycles.
Được đề xuất
Home Appliance Control Panels
Home appliance control panels use the PIC16F18876T-I/ML to drive segmented or graphical LCDs, scan capacitive touch buttons, and regulate motor/temperature control loops. The 24-channel ADC samples thermistor and motor-current feedback while the PWM/SMT generates TRIAC-firing timing for heater/induction elements. The Functional Safety (FuSa) peripherals (CRC/SCAN/HLT/WWDT) support safety-relevant appliance classifications where watchdog and fault detection are mandated.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F18876T-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 | PIC16F18876-I/ML | PIC16F18875T-I/ML | PIC16F18855-I/ML | PIC16F18857-I/ML | PIC16F18856T-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8) with EP | 44-QFN (8x8) with EP | 44-QFN (8x8) with EP | 44-QFN (8x8) with EP | 44-QFN (8x8) with EP | 44-QFN (8x8) with EP |
| Flash Memory | 28 KB | 28 KB | 24 KB | 14 KB | 56 KB | 28 KB |
| RAM | 2 KB | 2 KB | 1.5 KB | 1 KB | 4 KB | 2 KB |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V |
| XLP Low-Power | Yes | Yes | Yes | Yes | Yes | Yes |
| Functional Safety (FuSa) | Yes | Yes | Yes | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- Highest Flash density in 44-QFN footprint with full peripheral set (vsPIC16F18855-I/ML)
- Functional Safety (FuSa) peripherals for IEC 61508 development (vsPIC16F18875T-I/ML)
- Industrial -40C to +85C temperature range with FuSa support (vsPIC16F18856T-I/ML)
Ghi chú thiết kế
The 44-QFN (8x8 mm) package exposes a thermal pad on the underside that must be soldered to a continuous ground copper pour on the top layer with multiple thermal vias stitching to an internal ground plane. Without proper pad soldering the part's junction-to-ambient thermal resistance rises, and PPS-related signal integrity may degrade. Recommended copper-pour area is at least 25 mm^2 with 0.3mm-pitch via array. Estimated: at 32MHz active, the PIC16F18876T-I/ML dissipates approximately 15-20 mW internally; a properly soldered EP keeps die temperature rise under 5C above ambient.
Place a 100nF decoupling capacitor as close as possible to every VDD/VSS pin pair, and a single 10uF bulk capacitor near the package entry. Place a 100nF + 10uF pair on AVDD/AVSS for ADC reference stability. The PPS-remappable peripherals can switch digital lines at high dV/dt; keep analog traces short and guarded to avoid ADC sampling noise injection. Use IDLE/DOZE/PMD modes aggressively to minimize active current in duty-cycled sensor firmware.
Use PPS to route digital functions (EUSART, SPI, I2C, PWM) away from analog ADC inputs; even a few millimeters of coupling between a 32MHz PWM line and a 24-channel ADC input can degrade SNR by 6-10 dB. Keep the 32.768kHz crystal traces short and symmetric if an external low-frequency oscillator is used for RTC, and guard the crystal area with a ground ring to suppress coupling to the ADC. Route the ICSP programming pins (PGD/PGC) to an accessible header or test pad for in-circuit firmware updates.
Do not exceed 5.5V on VDD or AVDD - the PIC16F18876T-I/ML does not include absolute-maximum-tolerant over-voltage clamps and 6V supply transients can permanently damage the part. Always sequence AVDD and VDD together within 0.3V; large mismatches force current through the internal ESD structures. When migrating from the PIC16F18855/18857, double-check the PPS mapping tables - PPS input/output channel assignments differ between family members even within the same QFN footprint.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page; the standard -I/ML part is industrial-grade, not AEC-Q100 qualified - look at VAO suffix variants for automotive. Functional Safety (FuSa) peripherals aid IEC 61508 system development but do not by themselves certify the part.
