PIC16LF18876-I/MV - 32MHz 8-bit MCU, 28KB Flash | Microchip
MPN: PIC16LF18876-I/MV ✓ Hoạt độngPIC16LF18876-I/MV Tóm tắt
An 8-bit microcontroller (MCU) is a small, self-contained computing device that integrates a CPU, non-volatile program memory, volatile data memory, and a mix of analog and digital peripherals onto a single silicon die. In the broader electronics taxonomy it sits under microcontroller -> embedded processor -> semiconductor device. The PIC16 family uses a modified Harvard RISC architecture with a 14-bit instruction word, and the 'LF' suffix denotes the extended low-voltage operating range (1.8V to 3.6V) that complements the standard PIC16F parts (which run up to 5.5V). The '18876' family is positioned in the upper-mid tier of the PIC16 line, integrating rich analog and Core Independent Peripherals (CIPs) so that many tasks - timing, signal conditioning, communications - run without waking the CPU.
Key features of this part include a 10-bit ADC with computation, up to 36 I/O pins, support for up to 32MHz internal oscillator operation, integrated Core Independent Peripherals such as CRC/SCAN and HLT (Hardware Limit Timer), and eXtreme Low Power (XLP) technology with deep-sleep currents in the nanoampere range. The on-chip peripherals - including multiple UART, SPI, I2C, PWM, comparators, and op-amps - allow designers to assemble a complete sensor or motor-control node with few external components.
Architecturally the device pairs an 8-bit accumulator-based ALU with a 14-bit instruction set, deterministic interrupt latency, and a configurable oscillator block that supports external crystals, internal HF/LF oscillators, and a 32kHz low-power crystal mode. The 28KB Flash and 2KB RAM are sized for typical mid-tier embedded firmware stacks - sensor fusion, protocol bridges, and small RTOS workloads - and the in-circuit debugger (ICD) interface enables field firmware updates.
Typical applications include industrial sensor nodes, low-power IoT edge devices, battery-powered instrumentation, home appliance control boards, and automotive interior subsystems. Its 36 I/O count and analog-rich peripherals also make it suitable for small motor-control loops, multi-channel LED drivers, and capacitive-touch user interfaces.
When designing with the PIC16LF18876-I/MV, observe the 1.8V to 3.6V supply window for LF parts (going above 3.6V will damage the part - if a 5V rail is required, select the PIC16F18876 instead), place the exposed pad (EP) on a continuous ground plane for thermal relief, and reserve the ICSPCLK/ICSPDAT pins for in-circuit programming access. Plan the I/O map against the 36 available pins early in the schematic phase.
This page synthesizes distributor pricing, drop-in PIC16 family alternatives, and practical PCB design guidance not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF18876-I/MV — 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 PIC16LF18876-I/MV (cùng hình factor và footprint) — khác nhau ở ADC, Package, Program Memory (Flash), Core Architecture, Operating Temperature.
PIC16LF18875-I/MV
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LF18876T-I/MV
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F18876-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18876T-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF18876-I/P
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF18876-I/MV Tỷ lệ tối đa & tính chất điện
| Product Family | PIC16F (XLP 16F) |
| Core Architecture | 8-bit RISC (PIC16 enhanced mid-range) |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| Data RAM | 2 KB |
| Operating Voltage (VDD) | 1.8 V to 3.6 V (LF variant) |
| I/O Pins | 36 |
| ADC | 10-bit |
| Hộp | 40-pin UQFN (5x5 mm) with exposed pad |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40 C to +85 C (industrial grade) |
| Temperature Grade | Industrial |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
| Peripheral Highlights | CRC/SCAN, HLT, CWG, NCO, PWM, multiple UART/SPI/I2C, op-amps, comparators |
Cấu hình chân PIC16LF18876-I/MV
| Chân 1 | RA5 — GPIO RA5 / digital input |
| Chân 2 | RA4 — GPIO RA4 |
| Chân 3 | RA3 — GPIO RA3 |
| Chân 4 | RA2 — GPIO RA2 |
| Chân 5 | RA1 — GPIO RA1 / ICSPCLK |
| Chân 6 | RA0 — GPIO RA0 / ICSPDAT |
| Chân 7 | VSS — Ground |
| Chân 8 | RA7 — GPIO RA7 / CLKIN |
| Chân 9 | RA6 — GPIO RA6 / CLKOUT |
| Chân 10 | RC0 — GPIO RC0 |
| Chân 11 | RC1 — GPIO RC1 |
| Chân 12 | RC2 — GPIO RC2 |
| Chân 13 | RC3 — GPIO RC3 |
| Chân 14 | RC4 — GPIO RC4 |
| Chân 15 | RC5 — GPIO RC5 |
| Chân 16 | RC6 — GPIO RC6 / TX |
| Chân 17 | RC7 — GPIO RC7 / RX |
| Chân 18 | RB7 — GPIO RB7 |
| Chân 19 | RB6 — GPIO RB6 / PGC |
| Chân 20 | RB5 — GPIO RB5 / PGD |
| Chân 21 | RB4 — GPIO RB4 |
| Chân 22 | RB3 — GPIO RB3 |
| Chân 23 | RB2 — GPIO RB2 |
| Chân 24 | RB1 — GPIO RB1 |
| Chân 25 | RB0 — GPIO RB0 |
| Chân 26 | VDD — Positive supply (1.8 V to 3.6 V) |
| Chân 27 | RD7 — GPIO RD7 |
| Chân 28 | RD6 — GPIO RD6 |
| Chân 29 | RD5 — GPIO RD5 |
| Chân 30 | RD4 — GPIO RD4 |
| Chân 31 | RD3 — GPIO RD3 |
| Chân 32 | RD2 — GPIO RD2 |
| Chân 33 | RD1 — GPIO RD1 |
| Chân 34 | RD0 — GPIO RD0 |
| Chân 35 | RE3 — GPIO RE3 / MCLR |
| Chân 36 | RE2 — GPIO RE2 |
| Chân 37 | RE1 — GPIO RE1 |
| Chân 38 | RE0 — GPIO RE0 |
| Chân 39 | AVSS — Analog ground |
| Chân 40 | AVDD — Analog supply (tie to VDD) |
Ứng dụng tiêu biểu
PIC16LF18876-I/MV phù hợp cho 7 Áp dụngs: Industrial Sensor Node, Battery-Powered IoT Edge Device, Home Appliance Control Board, Capacitive Touch User Interface, Multi-Channel LED Driver Board, Automotive Body Electronics Module, Portable Medical Monitoring Accessory.
Industrial Sensor Node
The PIC16LF18876-I/MV fits industrial sensor nodes because its 32 MHz core, 28 KB Flash, and 10-bit ADC with computation enable local sensor conditioning without an external amplifier. The on-chip Core Independent Peripherals - CRC/SCAN for memory integrity, HLT for watchdog-style timing - run in sleep mode at sub-microamp currents, allowing battery-powered 4-20 mA loop replacements to last 5-10 years on a single primary cell. Its 1.8 V to 3.6 V supply window is well-matched to lithium-thionyl chloride cells.
Được đề xuất
Battery-Powered IoT Edge Device
For battery-powered IoT edge devices, the PIC16LF18876-I/MV's eXtreme Low Power (XLP) technology delivers sleep currents in the nanoampere range, and its 1.8 V minimum VDD allows operation directly from a single alkaline or lithium cell down to end-of-life voltage. The 28 KB Flash supports BLE/Zigbee stack fragments or LoRaWAN MAC layers for duty-cycled sensor reporting. The 36 I/O count accommodates multi-sensor fusion boards without external GPIO expanders.
Được đề xuất
Home Appliance Control Board
Home appliance control boards - washing machines, dishwashers, induction cooktops - benefit from the PIC16LF18876-I/MV's 36 I/O count, integrated op-amps for current sensing, and CWG (Complementary Waveform Generator) for IGBT/MOSFET half-bridge drives. The 28 KB Flash supports user-interface state machines plus motor-control loops, and the 1.8 V to 3.6 V supply aligns with 3.3 V logic rails. Multiple UART/SPI/I2C instances enable simultaneous HMI display, sensor hub, and inverter communications.
Được đề xuất
Capacitive Touch User Interface
Capacitive touch user interfaces for kitchen appliances, automotive interiors, and consumer electronics use the PIC16LF18876-I/MV's mTouch peripheral and CVD (Capacitive Voltage Divider) front end to scan 8-16 touch electrodes without external analog components. The 32 MHz CPU executes the touch-decision algorithm in microseconds, while the integrated Core Independent Peripherals handle LED PWM feedback in parallel without CPU loading. The 40-pin UQFN 5x5 mm package enables compact touch-pad PCBs.
Được đề xuất
Multi-Channel LED Driver Board
Multi-channel LED driver boards - architectural lighting, horticultural fixtures, display backlights - leverage the PIC16LF18876-I/MV's 16-bit PWM channels and CWG to dim and color-mix LED strings with high resolution. The 28 KB Flash supports DMX-512 / DALI / 0-10 V protocol stacks alongside the dimming algorithm, and the 2 KB RAM is sufficient for 16-channel color-point buffers. The 1.8 V to 3.6 V supply is compatible with constant-current LED driver ICs operating from a 3.3 V rail.
Được đề xuất
Automotive Body Electronics Module
Automotive body electronics modules - door modules, seat controllers, HVAC blend-door actuators - use the PIC16LF18876-I/MV's CAN-ready peripherals and LIN support, combined with the 36 I/O count to drive multiple loads. The -40 C to +85 C industrial temperature grade covers cabin environments. Note: for under-hood AEC-Q100-qualified applications, select the PIC16F18876-E/MV or PIC16F18876-I/MV Q1 variants instead - the standard part is NOT AEC-Q100 qualified.
Được đề xuất
Portable Medical Monitoring Accessory
Portable medical monitoring accessories - pulse oximeters, single-lead ECG patches, wearable spirometers - benefit from the PIC16LF18876-I/MV's low-power sleep modes that extend battery life into weeks, and its 10-bit ADC with computation for sensor signal conditioning. The 28 KB Flash fits small embedded algorithms for heart-rate detection or respiratory waveform analysis. The industrial -40 C to +85 C temperature grade covers body-temperature operating ranges. For FDA-grade medical designs, perform additional verification and validation per IEC 62304.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF18876-I/MV — 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 | PIC16LF18875-I/MV | PIC16LF18876T-I/MV | PIC16F18876-I/MV | PIC16F18876T-I/MV | PIC16LF18876-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-pin UQFN (5x5 mm) EP | 40-pin UQFN (5x5 mm) EP - same | 40-pin UQFN (5x5 mm) EP - same | 40-pin UQFN (5x5 mm) EP - same | 40-pin UQFN (5x5 mm) EP - same | 40-pin PDIP - DIFFERENT footprint (through-hole) |
| Operating Voltage (VDD) | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V |
| Flash Program Memory | 28 KB | 14 KB (-50%) | 28 KB | 28 KB | 28 KB | 28 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| I/O Pins | 36 | 36 | 36 | 36 | 36 | 36 |
| Temperature Grade | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C |
| Core / Family | PIC16F XLP enhanced mid-range 8-bit | PIC16F XLP enhanced mid-range 8-bit | PIC16F XLP enhanced mid-range 8-bit | PIC16F XLP enhanced mid-range 8-bit | PIC16F XLP enhanced mid-range 8-bit | PIC16F XLP enhanced mid-range 8-bit |
| AEC-Q100 Automotive Qualified | No | No | No | No (select PIC16F18876-I/MV Q1 suffix for AEC-Q100) | No | No |
Bảo phân biệt quan trọng
- Lower operating voltage minimum (1.8 V) for single-cell battery designs (vsPIC16F18876-I/MV)
- Rich Core Independent Peripherals (CIPs) reduce CPU loading (vsPIC16LF15375)
- 40-pin UQFN 5x5 mm footprint with 36 I/O (vsPIC16LF18854-I/SO)
Ghi chú thiết kế
Decouple VDD and AVDD each with a 100 nF ceramic capacitor placed within 5 mm of the respective pin. For the 40-pin UQFN EP variant, the exposed pad is the primary thermal and electrical ground - solder it to a continuous ground plane with at least 4 thermal vias to the inner layers. Estimated: at 32 MHz active current of ~6 mA + peripheral current, total active power is ~20 mW at 3.3 V - well within UQFN thermal limits even without a dedicated heatsink.
Reserve pins RA0/RA1 (ICSPDAT/ICSPCLK) and RB6/RB5 (PGC/PGD) for in-circuit serial programming access - even if not used in production, leave test pads or a programming header to enable field firmware updates. The 5x5 mm UQFN has 0.4 mm pitch pads - use NSMD (non-solder mask defined) pads with at least 0.2 mm copper-to-pad clearance to prevent solder bridging. Estimated trace widths of 0.15 mm are appropriate for signal traces under the part.
Do NOT apply >3.6 V to the PIC16LF18876 LF part - the LF silicon lacks the higher-voltage tolerance of the standard PIC16F18876 and will be damaged. Do NOT leave MCLR (RE3) floating - tie to VDD via a 10 kohm resistor or drive it actively. Do NOT rely on the internal oscillator at temperatures below -20 C without calibrating at the operating temperature - crystal drift compensation may be required for UART communications at low temperatures.
Place the UQFN-40 footprint centered on a 1 square inch copper pour on the top layer, stitched to a ground plane on layer 2 with 0.3 mm thermal vias spaced 1 mm apart. Keep analog signal traces (those routed to RA0-RA5 and the ADC channels) short and away from PWM and digital switching traces. The mTouch sensing traces should be guarded by a ground trace on both sides and not cross any switching signal trace.
Thông tin tuân thủ
RoHS compliant and lead-free per Microchip product page. NOT AEC-Q100 qualified - select PIC16F18876-E/MV (Q1 suffix) for AEC-Q100 automotive. Halogen-free status not explicitly listed in the verified distributor data.
