PIC16LF18875-E/PT - 8-Bit MCU, 14KB Flash, 32MHz, 44-TQFP | Microchip
MPN: PIC16LF18875-E/PT ✓ Hoạt độngPIC16LF18875-E/PT Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path and integrated CPU, memory, and peripherals. Within the system hierarchy it sits below 16-bit and 32-bit MCUs and is widely used in cost-sensitive, deterministic, low-power applications such as sensor nodes, consumer appliances, and IoT edge devices. The PIC16LF18875-E/PT belongs to the PIC® XLP™ 16F family, which extends the broader 8-bit PIC® line by adding hardware CIPs, multiple communication peripherals and ultra-low-power sleep modes for battery-powered products.
Key features include 36 general-purpose I/O pins, multiple 10-bit ADC channels, comparators, PWMs, a hardware CRC/SCAN engine, HLT (Hardware Limit Timer), and communication peripherals such as EUSART, I2C and SPI. The on-board 32 MHz internal oscillator eliminates the need for an external crystal in many designs, while the XLP sleep current extends battery life in always-on IoT and wearable applications. The 44-pin TQFP package provides a 10x10 mm footprint with ample routing for analog and digital interfaces.
The architecture integrates a RISC core with deterministic single-cycle instruction execution, configurable clock sources from 31 kHz LFINTOSC up to 32 MHz HFINTOSC, and a flexible peripheral pin-select (PPS) system that allows remapping of digital functions to almost any I/O pin. This simplifies PCB layout, shortens design cycles and supports migration between PIC16 family members without re-routing the board.
Typical applications include IoT sensor nodes, battery-powered consumer devices, industrial control, automotive body and lighting modules, smart home edge controllers, and low-power wireless sensor hubs. Designers choose this part for cost-sensitive designs that still require robust analog integration, hardware CIPs and ultra-low-power sleep current.
Designers should note the LF prefix designates the 1.8V-3.6V wide operating voltage range and XLP low-power modes; pair the device with a properly decoupled VDD/AVDD pair (typically 100 nF + 1 µF) and reserve ICSP™ pins (ICSPCLK/ICSPDAT) for in-circuit programming and debugging.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF18875-E/PT — 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 PIC16LF18875-E/PT (cùng hình factor và footprint) — khác nhau ở Package, ADC, DAC, Communication, Core.
PIC16LF18876-E/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LF18877-E/PT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF18857-E/PT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF18855-E/PT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF18856-E/PT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF18875-E/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF18875-E/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit PIC® RISC |
| CPU Speed (max) | 32 MHz |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data Memory (RAM) | 1 KB |
| EEPROM | 256 bytes |
| I/O Pins | 36 |
| Hộp | 44-pin TQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Operating Voltage Range | 1.8 V to 3.6 V (LF variant) |
| Khoảng nhiệt độ hoạt động | -40C to +125C (E suffix) |
| A/D Converter | 10-bit |
| Communication Interfaces | EUSART, I2C, SPI |
| Timers/PWM | Multiple 8/16-bit timers, PWM outputs |
| Core Independent Peripherals (CIP) | CRC/SCAN, HLT, CWG, NCO |
| Low-Power Technology | XLP™ (eXtreme Low Power) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16LF18875-E/PT
| Chân 1 | VDD — Digital supply voltage |
| Chân 2 | RA5 — I/O port A bit 5 |
| Chân 3 | RA4 — I/O port A bit 4 |
| Chân 4 | RA3 — I/O port A bit 3 |
| Chân 5 | RC5 — I/O port C bit 5 |
| Chân 6 | RC4 — I/O port C bit 4 |
| Chân 7 | RC3 — I/O port C bit 3 |
| Chân 8 | RC2 — I/O port C bit 2 |
| Chân 9 | RC1 — I/O port C bit 1 |
| Chân 10 | RC0 — I/O port C bit 0 |
| Chân 11 | OSC1 — External oscillator input |
| Chân 12 | OSC2 — External oscillator output |
| Chân 13 | RB0 — I/O port B bit 0 |
| Chân 14 | RB1 — I/O port B bit 1 |
| Chân 15 | RB2 — I/O port B bit 2 |
| Chân 16 | RB3 — I/O port B bit 3 |
| Chân 17 | RB4 — I/O port B bit 4 |
| Chân 18 | RB5 — I/O port B bit 5 |
| Chân 19 | RB6/ICSPCLK — I/O port B bit 6 / ICSP programming clock |
| Chân 20 | RB7/ICSPDAT — I/O port B bit 7 / ICSP programming data |
| Chân 21 | RE3 — I/O port E bit 3 (MCLR optional) |
| Chân 22 | RD0 — I/O port D bit 0 |
| Chân 23 | RD1 — I/O port D bit 1 |
| Chân 24 | RD2 — I/O port D bit 2 |
| Chân 25 | RD3 — I/O port D bit 3 |
| Chân 26 | RD4 — I/O port D bit 4 |
| Chân 27 | RD5 — I/O port D bit 5 |
| Chân 28 | RD6 — I/O port D bit 6 |
| Chân 29 | RD7 — I/O port D bit 7 |
| Chân 30 | AVSS — Analog ground |
| Chân 31 | AVDD — Analog supply voltage |
| Chân 32 | RA2 — I/O port A bit 2 |
| Chân 33 | RA1 — I/O port A bit 1 |
| Chân 34 | RA0 — I/O port A bit 0 |
| Chân 35 | RE2 — I/O port E bit 2 |
| Chân 36 | RE1 — I/O port E bit 1 |
| Chân 37 | RE0 — I/O port E bit 0 |
| Chân 38 | RC7 — I/O port C bit 7 |
| Chân 39 | RC6 — I/O port C bit 6 |
| Chân 40 | RA7 — I/O port A bit 7 |
| Chân 41 | RA6 — I/O port A bit 6 |
| Chân 42 | VSS — Digital ground |
| Chân 43 | NC — Not connected (per datasheet) |
| Chân 44 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
PIC16LF18875-E/PT phù hợp cho 6 Áp dụngs: Battery-Powered IoT Sensor Node, Consumer Appliance HMI Control, Automotive Body and Lighting Module, Industrial Sensor and Process Control, Smart Home Edge Controller, Wearables and Health Patch.
Battery-Powered IoT Sensor Node
The PIC16LF18875-E/PT suits coin-cell or 2x AA powered IoT sensor nodes because it operates 1.8-3.6 V with XLP™ sleep currents below 100 nA in DeepSleep with peripheral retention. Its 32 MHz HFINTOSC delivers enough MIPS to run sensor reads and a sub-gHz radio wake-up protocol, while the 14 KB Flash and 1 KB RAM fit typical TinyML lite, periodic sampling, and BLE/Zigbee host drivers. Place the part on a 4-layer PCB with VDD/AVDD 100 nF + 1 µF decoupling to suppress noise and avoid spurious ADC reads on battery attach.
Được đề xuất
Consumer Appliance HMI Control
The PIC16LF18875-E/PT powers user interfaces in washing machines, microwaves, and coffee makers by driving segmented LCD or LED displays, scanning keypads, and running BLDC/PWM motor profiles. Its 10-bit ADC reads temperature and humidity sensors directly, while multiple PWM channels handle triac-based AC control and DC brushless motor commutation. The wide 1.8-3.6 V range simplifies 2-3 cell alkaline designs, and the 32 MHz core keeps control loops responsive under 10 ms for smooth user feedback.
Được đề xuất
Automotive Body and Lighting Module
The PIC16LF18875-E/PT with its -40C to +125C operating range (E suffix) targets automotive body controllers, interior lighting, and accessory modules. CIPs like CRC/SCAN and HLT detect stuck outputs and watchdog faults without CPU load, while EUSART/SPI talk to CAN transceivers and LIN slaves. Its 36 GPIO drive RGB-LED chains, segment displays, and LED matrix panels; combined with XLP sleep below 1 µA, it keeps quiescent current low on always-on body modules.
Được đề xuất
Industrial Sensor and Process Control
Industrial sensor nodes and 4-20 mA loop-powered instruments benefit from the PIC16LF18875-E/PT's analog integration: 10-bit ADC, comparators, and op-amps interface directly with strain gauges, RTDs, and pressure sensors. The 32 MHz core runs PID loops at 10 kHz, while EUSART/I2C drive 4-20 mA DACs and HMI displays. The 1.8-3.6 V range supports solar/battery field installations, and -40C to +125C operation meets outdoor cabinet specifications.
Được đề xuất
Smart Home Edge Controller
Smart-home edge controllers use the PIC16LF18875-E/PT as a sub-MCU bridging mains-powered sensors, occupancy detectors, and HVAC actuators. The XLP platform keeps standby power below ENERGY STAR limits, while 14 KB Flash fits Z-Wave/Zigbee host glue logic, OTA bootloaders, and tamper detection. PPS remapping lets one PCB footprint serve multiple SKUs by reassigning I2C/SPI to different pins without board rework.
Được đề xuất
Wearables and Health Patch
Wearable fitness bands and disposable biosensor patches use the PIC16LF18875-E/PT because its DeepSleep current is below 50 nA with RTC running, extending coin-cell life to months. The 10-bit ADC with internal 1.024 V reference reads PPG/heart-rate photodiode signals accurately, while 32 MHz burst mode processes samples between sleeps. The 44-TQFP keeps the design compact and the -40C to +125C range supports body-worn applications in cold or hot environments.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF18875-E/PT — 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 | PIC16LF18876-E/PT | PIC16LF18877-E/PT | PIC16LF18857-E/PT | PIC16LF18855-E/PT | PIC16LF18856-E/PT |
|---|---|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 14 KB | 28 KB | 56 KB | 8 KB | 8 KB | 14 KB |
| RAM | 1 KB | 2 KB | 4 KB | 1 KB | 1 KB | 1 KB |
| CPU Speed (max) | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 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 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| I/O Pins | 36 | 36 | 36 | 36 | 36 | 36 |
| Temperature Range | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| XLP Low-Power Technology | Yes | Yes | Yes | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- Balance of Flash/RAM and peripherals for general-purpose 8-bit designs (vsPIC16LF18855-E/PT)
- Lower cost than larger 28KB/56KB Flash siblings (vsPIC16LF18876-E/PT and PIC16LF18877-E/PT)
- Lower-voltage operating range than F-variant (vsPIC16F18875-E/PT)
Ghi chú thiết kế
Decouple VDD/AVDD with both a 100 nF ceramic (high-frequency) and a 1 µF ceramic (bulk) capacitor placed within 5 mm of the respective pins. Connect VSS/AVSS to a single low-impedance ground plane to prevent ADC reference drift. For battery applications, place a 10 µF bulk cap on VDD to ride out transmit bursts from co-located radios and avoid brown-out resets.
Reserve ICSPCLK (RB6) and ICSPDAT (RB7) as programming pins accessible to an ICSP header or test pad. Keep MCLR/RE3 (pin 21) accessible for in-circuit debugging if used as a reset input. Place the 32.768 kHz crystal or resonator within 5 mm of OSC1/OSC2 if used; otherwise leave HFINTOSC enabled and disable external oscillator to reduce BOM cost.
Route analog traces (ADC inputs, comparators, op-amp inputs) on a separate analog island, away from switching signals and clock lines. Use guard rings around sensitive analog pins tied to AVSS to reduce leakage. Configure the A/D with an acquisition time of at least 8 µs for high-impedance sources (>5 kΩ) to prevent ADC sampling errors at 32 MHz CPU clock.
Do not exceed the absolute maximum voltage of 4.0 V on VDD/AVDD - the LF device's 3.6 V max operating range has only 400 mV margin and is the most common damage source during hot-plug or Li-Ion transient events. Ensure Configuration Words are properly programmed (BOR enabled, WDT enabled for safety-critical apps) before code execution to prevent unintended CPU lockups.
Estimated: at 32 MHz CPU and 3.6 V supply, active current is approximately 5.5 mA typical; in DeepSleep with WDT disabled the device draws below 50 nA. For battery life calculations, profile duty cycle including peripheral wake-up currents - EUSART reception can add ~1 mA, ADC active adds ~250 µA. Use the XLP Current Calculator spreadsheet published by Microchip for accurate system-level budgeting.
Thông tin tuân thủ
RoHS compliant per Microchip product page. E suffix denotes -40C to +125C industrial/automotive operating temperature range but is NOT AEC-Q100 qualified; for AEC-Q100 automotive applications contact Microchip for Q-graded variants. Lead-free packaging is standard; halogen-free status not explicitly stated in the verified web data.