PIC16LF18875-I/MV - 8-Bit 32MHz XLP MCU 14KB Flash 40-UQFN
MPN： PIC16LF18875-I/MV ✓ 啟用中PIC16LF18875-I/MV 概覽
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.
直接替換替代品，適用於 PIC16LF18875-I/MV — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16LF18875-I/MV （相同外形與佔位） — 差異在於 Package, Operating Temperature, ADC, Core Architecture, DAC.
PIC16LF18875T-I/MV
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16LF18875-E/MV
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF18875-E/PT
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16LF18854-I/MV
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF18857-I/MV
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC16LF18875-I/MV 最大額定值與電氣特性
| 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 |
| 工作溫度範圍 | -40 °C to +85 °C (Industrial, "I") |
| 封裝 | 40-pin UQFN (5x5 mm) |
| 腳位數 | 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 |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
PIC16LF18875-I/MV 腳位配置
| 腳位 1 | RA0 — Bidirectional I/O / analog input |
| 腳位 2 | RA1 — Bidirectional I/O / analog input |
| 腳位 3 | RA2 — Bidirectional I/O / analog input |
| 腳位 4 | RA3 — Bidirectional I/O / analog input |
| 腳位 5 | RA4 — Bidirectional I/O / analog input |
| 腳位 6 | RA5 — Bidirectional I/O / analog input |
| 腳位 7 | RA6 — Bidirectional I/O / analog input |
| 腳位 8 | RA7 — Bidirectional I/O / analog input |
| 腳位 9 | VSS — Ground reference |
| 腳位 10 | RA8 — Bidirectional I/O / analog input |
| 腳位 11 | RA9 — Bidirectional I/O / analog input |
| 腳位 12 | RA10 — Bidirectional I/O / analog input |
| 腳位 13 | RA11 — Bidirectional I/O / analog input |
| 腳位 14 | VDD — Positive supply voltage (1.8-3.6 V) |
| 腳位 15 | RA12 — Bidirectional I/O / analog input |
| 腳位 16 | RA13 — Bidirectional I/O / analog input |
| 腳位 17 | RA14 — Bidirectional I/O / analog input |
| 腳位 18 | RB0 — Bidirectional I/O / ICSPCLK |
| 腳位 19 | RB1 — Bidirectional I/O / AN |
| 腳位 20 | RB2 — Bidirectional I/O / AN |
| 腳位 21 | RB3 — Bidirectional I/O / AN |
| 腳位 22 | RB4 — Bidirectional I/O / AN |
| 腳位 23 | RB5 — Bidirectional I/O / AN |
| 腳位 24 | RB6 — Bidirectional I/O / AN |
| 腳位 25 | RB7 — Bidirectional I/O / AN |
| 腳位 26 | RB8 — Bidirectional I/O / AN |
| 腳位 27 | RB9 — Bidirectional I/O / AN |
| 腳位 28 | RB10 — Bidirectional I/O / AN |
| 腳位 29 | RB11 — Bidirectional I/O / AN |
| 腳位 30 | VSS — Ground reference |
| 腳位 31 | RB12 — Bidirectional I/O / AN |
| 腳位 32 | RB13 — Bidirectional I/O / AN |
| 腳位 33 | RB14 — Bidirectional I/O / AN |
| 腳位 34 | RB15 — Bidirectional I/O / AN |
| 腳位 35 | RC0 — Bidirectional I/O / AN |
| 腳位 36 | RC1 — Bidirectional I/O / AN |
| 腳位 37 | RC2 — Bidirectional I/O / AN |
| 腳位 38 | RC3 — Bidirectional I/O / AN |
| 腳位 39 | RC4 — Bidirectional I/O / AN |
| 腳位 40 | RC5 — Bidirectional I/O / AN |
典型應用
PIC16LF18875-I/MV 適用於 7 應用s: 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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16LF18875-I/MV — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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.) |
主要差異化特點
- Larger Flash than PIC16LF18854-I/MV (對比PIC16LF18854-I/MV)
- Lower cost than PIC16LF18857-I/MV (對比PIC16LF18857-I/MV)
- Same package, same die as tape-and-reel variant (對比PIC16LF18875T-I/MV)
設計說明
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.
合規資訊
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.
