PIC16LF18875-I/MV - 8-Bit 32MHz XLP MCU 14KB Flash 40-UQFN
MPN: PIC16LF18875-I/MV ✓ Hoạt độngPIC16LF18875-I/MV Tóm tắt
An 8-bit microcontroller (MCU) is a self-contained computing subsystem on a single silicon die that integrates a CPU, non-volatile program memory (Flash), volatile data memory (RAM), EEPROM, and a mix of analog and digital peripherals. The PIC16F188xx family sits at the intersection of the PIC microcontroller hierarchy: PIC16 -> mid-range 8-bit MCU -> Microchip 8-bit portfolio -> Microcontrollers -> Integrated Circuits. The "XLP" designation indicates eXtreme Low Power peripheral design, including nanoWatt XLP technology that lets the device sleep in the nanoamp range while retaining state.
Key features include a 10-bit ADC with computation (ADC2), a 5-bit/8-bit DAC, comparators, PWM, CWG (Complementary Waveform Generator), SMT (Signal Measurement Timer), HLT (Hardware Limit Timer), WWDT (Windowed Watchdog Timer), SCAN/CRC, ZCD (Zero-Cross Detect), PPS (Peripheral Pin Select), EUSART, and SPI/I2C. The wide peripheral set reduces external component count and BOM complexity.
This part is suited for ultra-low power 4-20 mA analog, electronics metering, low-power wireless power system control, energy harvesting, and general-purpose 8-bit embedded systems. The active NV meter buffer and pin select offer both active-high enable.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF18875-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 PIC16LF18875-I/MV (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, ADC, Core Architecture, DAC.
PIC16LF18875T-I/MV
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF18875-E/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF18875-E/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LF18854-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF18857-I/MV
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF18875-I/MV Tỷ lệ tối đa & tính chất điện
| Core | PIC16 8-bit |
| Series | PIC® XLP™ 16F |
| Program Memory Size | 14 KB (8K x 14) |
| RAM Size | 1 KB |
| EEPROM Size | 256 B |
| CPU Speed | 32 MHz |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Khoảng nhiệt độ hoạt động | -40 °C to +85 °C (Industrial, "I") |
| Hộp | 40-pin UQFN (5x5 mm) |
| Số chân | 40 |
| ADC | 10-bit ADC2 (computation) |
| DAC | 5-bit/8-bit DAC |
| Communication Interfaces | EUSART, SPI, I2C |
| Key Peripherals | PWM, CWG, SMT, HLT, WWDT, SCAN/CRC, ZCD, PPS, Comparator |
| Low-Power Technology | nanoWatt XLP |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16LF18875-I/MV
| Chân 1 | RA0 — Bidirectional I/O / analog input |
| Chân 2 | RA1 — Bidirectional I/O / analog input |
| Chân 3 | RA2 — Bidirectional I/O / analog input |
| Chân 4 | RA3 — Bidirectional I/O / analog input |
| Chân 5 | RA4 — Bidirectional I/O / analog input |
| Chân 6 | RA5 — Bidirectional I/O / analog input |
| Chân 7 | RA6 — Bidirectional I/O / analog input |
| Chân 8 | RA7 — Bidirectional I/O / analog input |
| Chân 9 | VSS — Ground reference |
| Chân 10 | RA8 — Bidirectional I/O / analog input |
| Chân 11 | RA9 — Bidirectional I/O / analog input |
| Chân 12 | RA10 — Bidirectional I/O / analog input |
| Chân 13 | RA11 — Bidirectional I/O / analog input |
| Chân 14 | VDD — Positive supply voltage (1.8-3.6 V) |
| Chân 15 | RA12 — Bidirectional I/O / analog input |
| Chân 16 | RA13 — Bidirectional I/O / analog input |
| Chân 17 | RA14 — Bidirectional I/O / analog input |
| Chân 18 | RB0 — Bidirectional I/O / ICSPCLK |
| Chân 19 | RB1 — Bidirectional I/O / AN |
| Chân 20 | RB2 — Bidirectional I/O / AN |
| Chân 21 | RB3 — Bidirectional I/O / AN |
| Chân 22 | RB4 — Bidirectional I/O / AN |
| Chân 23 | RB5 — Bidirectional I/O / AN |
| Chân 24 | RB6 — Bidirectional I/O / AN |
| Chân 25 | RB7 — Bidirectional I/O / AN |
| Chân 26 | RB8 — Bidirectional I/O / AN |
| Chân 27 | RB9 — Bidirectional I/O / AN |
| Chân 28 | RB10 — Bidirectional I/O / AN |
| Chân 29 | RB11 — Bidirectional I/O / AN |
| Chân 30 | VSS — Ground reference |
| Chân 31 | RB12 — Bidirectional I/O / AN |
| Chân 32 | RB13 — Bidirectional I/O / AN |
| Chân 33 | RB14 — Bidirectional I/O / AN |
| Chân 34 | RB15 — Bidirectional I/O / AN |
| Chân 35 | RC0 — Bidirectional I/O / AN |
| Chân 36 | RC1 — Bidirectional I/O / AN |
| Chân 37 | RC2 — Bidirectional I/O / AN |
| Chân 38 | RC3 — Bidirectional I/O / AN |
| Chân 39 | RC4 — Bidirectional I/O / AN |
| Chân 40 | RC5 — Bidirectional I/O / AN |
Ứng dụng tiêu biểu
PIC16LF18875-I/MV phù hợp cho 7 Áp dụngs: Battery-Powered IoT Sensor Nodes, Electronic Metering and 4-20 mA Loops, Low-Power Motor Control, Energy-Harvesting and Remote Controls, LED Lighting and Smart Lighting, Industrial Sensing and Process Control, Consumer Electronics and Appliance Control.
Battery-Powered IoT Sensor Nodes
The PIC16LF18875-I/MV is ideal for battery-powered wireless sensor nodes because of its 1.8-3.6 V supply range, nanoWatt XLP sleep currents below 50 nA, and integrated 10-bit ADC2 with computation that offloads filtering from the CPU. The 14 KB Flash and 1 KB RAM comfortably fit BLE/Zigbee stack fragments plus sensor calibration data, and the EUSART/SPI/I2C peripherals directly interface common sub-GHz or BLE modules. With PPS flexibility, designers can remap peripheral I/O to any pin to optimize PCB routing while preserving the 40-pin UQFN footprint shared with the rest of the family.
Được đề xuất
Electronic Metering and 4-20 mA Loops
In electronic metering applications, the PIC16LF18875-I/MV delivers precise analog measurement via its 10-bit ADC2 with oversampling, hardware accumulators, and zero-cross detect (ZCD) for AC line frequency monitoring. The 14 KB Flash supports metering algorithms plus calibration constants, while the 256 B EEPROM stores non-volatile trim and tamper logs. The CWG (Complementary Waveform Generator) and PWM peripherals drive isolated commutation in power-metering front-ends, and PPS allows the SPI to be routed directly to an external energy-measurement AFE without remapping glue logic.
Được đề xuất
Low-Power Motor Control
The PIC16LF18875-I/MV is well suited to low-power brushless DC and stepper motor control through its PWM and Complementary Waveform Generator (CWG) peripherals, which generate dead-band-corrected complementary gate-drive waveforms. With 32 MHz CPU, the MCU closes torque-control loops at high update rates while leaving headroom for housekeeping. The comparator, ZCD, and ADC2 channels synchronize back-EMF sensing and current measurement with hardware triggers, minimizing software latency. The 40-pin UQFN footprint provides enough I/O for three-phase gate drivers plus encoder or Hall-sensor feedback.
Được đề xuất
Energy-Harvesting and Remote Controls
For energy-harvesting designs such as self-powered remote controls or wireless light switches, the PIC16LF18875-I/MV's nanoWatt XLP sleep current (sub-100 nA typical) extends harvested-energy budgets to years of standby. The integrated SMT (Signal Measurement Timer) captures timing events during deep sleep without waking the CPU, and the WWDT/PMD power-management modules let peripherals run independently. PPS routing enables direct connection to a piezoelectric harvester or RF transmitter without external logic, and the wide 1.8-3.6 V supply tolerates the variable output of rectified harvesters.
Được đề xuất
LED Lighting and Smart Lighting
The PIC16LF18875-I/MV powers smart LED drivers using its 16-bit PWM and CWG peripherals to drive constant-current LED strings with smooth dimming and flicker-free operation. The 10-bit ADC2 monitors ambient light and LED current for closed-loop brightness control, while I2C interfaces the lighting fixture to BLE/Zigbee modules for wireless control. The 5/8-bit DAC provides reference voltages for analog dimming interfaces. PPS flexibility reassigns PWM outputs to any pin to simplify multi-channel driver layout while staying within the same 40-pin UQFN footprint across product variants.
Được đề xuất
Industrial Sensing and Process Control
In industrial sensor transmitters and process-control peripherals, the PIC16LF18875-I/MV provides reliable operation across -40 to +85 °C with industrial-grade EMI/ESD robustness. Its 10-bit ADC2 with hardware averaging delivers stable measurements for thermocouples, RTDs, and 4-20 mA loops, while the SCAN/CRC module validates firmware integrity in safety-critical applications. The EUSART supports RS-485 half-duplex industrial protocols, and the CWG/PWM peripherals drive solenoid and relay outputs. The 14 KB Flash hosts Modbus/RTU stack plus application logic, and PPS flexibility simplifies mixed-signal PCB layout.
Được đề xuất
Consumer Electronics and Appliance Control
The PIC16LF18875-I/MV is a strong fit for consumer appliances such as coffee machines, washing machines, and kitchen hoods because of its integrated peripherals - comparators for water-level sensing, ADC2 for temperature, and PWM for motor control. The 14 KB Flash holds graphical UI state machines plus housekeeping, and PPS flexibility simplifies mixed-signal board layouts. The 1.8-3.6 V supply range supports direct Li-ion battery operation, while the 40-pin UQFN footprint offers enough I/O for keypad, sensors, and triac drives in a compact 5x5 mm package.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF18875-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 | PIC16LF18875T-I/MV | PIC16LF18875-E/MV | PIC16LF18875-E/PT | PIC16LF18854-I/MV | PIC16LF18857-I/MV |
|---|---|---|---|---|---|---|
| Package | 40-UQFN (5x5 mm) | 40-UQFN (5x5 mm) | 40-UQFN (5x5 mm) | 44-TQFP | 40-UQFN (5x5 mm) | 40-UQFN (5x5 mm) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 14 KB | 14 KB | 14 KB | 14 KB | 7 KB | 28 KB |
| RAM Size | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 2 KB |
| EEPROM Size | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| CPU Speed | 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 |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +85 °C | -40 °C to +85 °C |
| ADC Resolution | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC2 |
| Pricing (qty 1, USD) | $2.71 | $2.71 (est.) | $2.95 (est.) | $3.05 (est.) | $2.55 (est.) | $3.10 (est.) |
Bảo phân biệt quan trọng
- Larger Flash than PIC16LF18854-I/MV (vsPIC16LF18854-I/MV)
- Lower cost than PIC16LF18857-I/MV (vsPIC16LF18857-I/MV)
- Same package, same die as tape-and-reel variant (vsPIC16LF18875T-I/MV)
Ghi chú thiết kế
Estimated: at VDD = 3.3 V and active CPU at 32 MHz, the PIC16LF18875 draws approximately 6 mA; in sleep with retention, nanoWatt XLP mode drops this to < 50 nA. Decouple VDD with a 100 nF X7R ceramic placed within 5 mm of the VDD pin and add a 10 uF bulk capacitor near the regulator. Avoid routing high-speed digital signals over the analog VDD trace to prevent ADC2 noise injection.
The 40-pin UQFN package has a low thermal resistance (~30 C/W) thanks to the exposed pad. Solder the EP to a 3x3 mm copper pour on the top layer for best heat dissipation. For battery applications where the MCU spends most of its life in sleep, junction self-heating is negligible, but in active motor-control loops at 32 MHz with all peripherals on, ensure the EP is fully soldered to keep Tj below 125 C.
Use Microchip's recommended 5x5 mm UQFN-40 land pattern with NSMD pads and 0.4 mm pitch. Route PPS-remappable signals on inner layers to keep the top side reserved for analog input routing. Place the ICSP programming header (ICSPDAT/ICSPCLK on RB7/RB6 by default, but PPS-reassignable) near the board edge for in-circuit programming access during manufacturing test.
Do not exceed 3.6 V on VDD - the PIC16LF18875 is the low-voltage LF variant and will be damaged above 3.6 V. The PIC16F18875 (non-LF) is required for 5 V designs. Also remember to configure PPS before assigning peripheral functions to pins; leaving PPS at default after reset routes peripherals to fixed pins and may collide with your pinout.
When routing SPI at > 4 MHz or I2C at > 400 kHz, keep trace lengths under 50 mm and add 22-33 ohm series resistors at the driver pins to dampen ringing. The SCAN/CRC peripheral can validate code integrity at boot - configure it in production firmware to detect Flash corruption from ESD events, especially in industrial installations.
Thông tin tuân thủ
RoHS and REACH compliance per Microchip product page. The PIC16LF18875-I/MV is the industrial temperature grade (-40 to +85 C) and is not AEC-Q100 qualified; for automotive applications use the AEC-Q100-qualified PIC16F equivalent where available.
