PIC16F18875-E/MV - 8-Bit MCU 32MHz 14KB Flash 40-UQFN | Microchip
MPN： PIC16F18875-E/MV ✓ 啟用中PIC16F18875-E/MV 概覽
An 8-bit microcontroller (MCU) is a single-chip processor whose data path is 8 bits wide, optimized for low-cost, low-power, and deterministic control tasks. The 8-bit MCU hierarchy sits beneath the broader semiconductor and embedded processor taxonomy, and the PIC16F18875 belongs to Microchip's enhanced mid-range PIC16 core family, offering richer peripherals than legacy PIC16F parts while preserving the familiar instruction set. This positions the part between simple 8-bit controllers and 32-bit ARM Cortex-M devices, balancing code density, ease of use, and peripheral integration.
Communication peripherals include EUSART with LIN support, SPI, and I2C, while power management features eXtreme Low Power (XLP) technology with IDLE and DOZE modes plus Peripheral Module Disable (PMD) for fine-grained current control. Functional Safety (FuSa) features simplify IEC 60730 Class B compliance for appliance and industrial designs, making this MCU well-suited for safety-critical and regulated end products.
The 40-UQFN package provides 36 I/O pins across multiple ports with PPS remapping, allowing designers to assign digital peripherals to almost any pin for simplified PCB routing. The exposed thermal pad improves power dissipation for sustained MIPS operation. Typical applications include consumer appliances, industrial sensor interfaces, IoT edge nodes, lighting controls, motor control loops, and battery-powered portable devices where low sleep current and rich analog peripherals reduce BOM cost.
When designing with this device, allocate budget for the ICD 3 or PICkit 4 programming/debug header and ensure the 5x5 mm UQFN land pattern uses NSMD pads with via-in-pad for the thermal pad to maximize heat sinking. The PPS system must be configured before peripheral use, so allow extra code space and runtime for the configuration lock.
直接替換替代品，適用於 PIC16F18875-E/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： PIC16F18875-E/MV （相同外形與佔位） — 差異在於 Package, ADC, Operating Temperature, Program Memory (Flash), DAC.
PIC16F18876-E/MV
✅ 直接替換聯絡詢價
查看資料表 →PIC16F18874-E/MV
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F18877-E/MV
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F18854-E/MV
✅ 直接替換聯絡詢價
查看資料表 →PIC16F18856-E/MV
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F18855-I/MV
✅ 直接替換聯絡詢價
查看資料表 →PIC16F18875-E/MV 最大額定值與電氣特性
| Core Processor | PIC |
| Core Size | 8-Bit |
| Maximum Clock Speed | 32 MHz |
| Program Memory (Flash) | 14 KB (8K x 14) |
| RAM Size | 1 KB |
| EEPROM Size | 256 B |
| Operating Voltage Range | 2.3 V to 5.5 V |
| 封裝 | 40-UQFN (5x5 mm) Exposed Pad |
| Number of I/O Pins | 36 |
| ADC | 10-bit ADC2 (Computation) |
| DAC | 5-bit / 8-bit |
| Comparators | Yes |
| PWM Modules | Yes (with CWG) |
| Communication Interfaces | EUSART (LIN), SPI, I2C |
| 工作溫度範圍 | -40C to +125C (Extended, -E suffix) |
| Peripheral Pin Select (PPS) | Yes |
| Watchdog Timer | WWDT (Windowed) |
| Low-Power Modes | XLP, IDLE, DOZE, PMD |
| Functional Safety (FuSa) | Yes (IEC 60730 Class B support) |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
PIC16F18875-E/MV 腳位配置
| 腳位 1 | RA3/SS1 — I/O / SPI Slave Select |
| 腳位 2 | RA4 — I/O / CPP |
| 腳位 3 | RA5 — I/O / Vcap |
| 腳位 4 | RA6 — I/O |
| 腳位 5 | RA7 — I/O |
| 腳位 6 | RB0 — I/O / Interrupt-on-change |
| 腳位 7 | RB1 — I/O / Interrupt-on-change |
| 腳位 8 | RB2 — I/O / Interrupt-on-change |
| 腳位 9 | RB3 — I/O / Interrupt-on-change |
| 腳位 10 | RB4 — I/O / Interrupt-on-change |
| 腳位 11 | RB5 — I/O / Interrupt-on-change |
| 腳位 12 | RB6 — I/O / PGC |
| 腳位 13 | RB7 — I/O / PGD |
| 腳位 14 | VDD — Positive Supply (2.3V-5.5V) |
| 腳位 15 | VSS — Ground |
| 腳位 16 | RC0 — I/O |
| 腳位 17 | RC1 — I/O |
| 腳位 18 | RC2 — I/O |
| 腳位 19 | RC3 — I/O / SCL |
| 腳位 20 | RC4 — I/O / SDA |
| 腳位 21 | RC5 — I/O |
| 腳位 22 | RC6 — I/O / TX |
| 腳位 23 | RC7 — I/O / RX |
| 腳位 24 | RE3/MCLR — Reset / Master Clear (input) |
| 腳位 25 | RD0 — I/O |
| 腳位 26 | RD1 — I/O |
| 腳位 27 | RD2 — I/O |
| 腳位 28 | RD3 — I/O |
| 腳位 29 | RD4 — I/O |
| 腳位 30 | RD5 — I/O |
| 腳位 31 | RD6 — I/O |
| 腳位 32 | RD7 — I/O |
| 腳位 33 | RE0 — I/O |
| 腳位 34 | RE1 — I/O |
| 腳位 35 | RE2 — I/O |
| 腳位 36 | RA0 — I/O / AN0 |
| 腳位 37 | RA1 — I/O / AN1 |
| 腳位 38 | RA2 — I/O / AN2 |
| 腳位 39 | NC — Not connected (per datasheet) |
| 腳位 40 | NC — Not connected (per datasheet) |
典型應用
PIC16F18875-E/MV 適用於 6 應用s: Consumer Appliance Control, Industrial Sensor Interface Node, IoT Edge Node and Wearable Hub, LED Lighting and Color Control, Automotive Body Electronics (LIN Sub-Nodes), Battery-Operated Handheld Instruments.
Consumer Appliance Control
The PIC16F18875-E/MV suits consumer appliances such as washing machines, dishwashers, and induction cooktops thanks to Functional Safety (FuSa) IEC 60730 Class B support and rich Core Independent Peripherals. The 10-bit ADC2 with Computation captures sensor inputs (temperature, current, water level) without CPU overhead, while the CWG and PWM modules drive motor control loops for pumps and fans. The 36 I/O pins and PPS routing handle multiple HMI keypads, LED indicators, and rotary encoders in a single chip.
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Industrial Sensor Interface Node
The PIC16F18875-E/MV is ideal for industrial 4-20 mA loop-powered sensor transmitters and Modbus RTU slave nodes, leveraging its EUSART (LIN/RS-485 capable) and SPI/I2C peripherals. The 2.3 V to 5.5 V operating range supports both 3.3 V and 5 V analog front-ends, while the on-chip comparators and ZCD enable zero-cross detection for AC line-powered designs. XLP low-power modes with sub-microamp sleep current extend battery life in remote or wireless sensor nodes.
推薦
IoT Edge Node and Wearable Hub
The PIC16F18875-E/MV serves as an edge-processing MCU for IoT wearable hubs and Bluetooth/BLE bridge nodes, where the 14 KB Flash can run local decision logic before forwarding to a higher-level radio module. PPS lets the designer route SPI signals to the BLE module on any convenient pin, simplifying small-form-factor PCB layout. With XLP nanoWatt sleep and IDLE/DOZE modes, the device achieves years of battery life on a single coin cell in periodic-sensing applications.
推薦
LED Lighting and Color Control
The PIC16F18875-E/MV drives multi-channel LED lighting controllers and DMX512-compatible fixtures using its PWM, CWG, and 10-bit ADC2 peripherals. The 5/8-bit DAC and comparators enable smooth dimming curves and analog current feedback loops for constant-current LED drivers. With up to 36 I/O pins and PPS flexibility, the MCU easily handles RGBW strips, addressable LED protocols, and capacitive touch UI for smart lighting applications.
推薦
Automotive Body Electronics (LIN Sub-Nodes)
The PIC16F18875-E/MV fits automotive body-electronics sub-nodes such as window lift, seat control, and mirror adjustment modules thanks to on-chip EUSART with LIN 1.3/2.0/2.1 host and client support. The CRC/SCAN and Windowed Watchdog Timer (WWDT) provide the safety primitives required for ISO 26262-ready subsystems. The 32 MHz core runs LIN scheduling and actuator PWM loops in a single deterministic thread.
推薦
Battery-Operated Handheld Instruments
The PIC16F18875-E/MV is well-suited for portable test instruments, handheld scanners, and medical point-of-care devices where its XLP low-power modes minimize battery drain. The 32 MHz performance runs user-interface graphics, ADC2-based sensor reads, and USB-to-UART bridges through EUSART, while the 1 KB SRAM buffers measurement data. The wide 2.3 V to 5.5 V supply range supports direct Li-Ion battery operation without external regulation.
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推薦產品摘要
工程參考資料，適用於 PIC16F18875-E/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 | PIC16F18876-E/MV | PIC16F18874-E/MV | PIC16F18854-E/MV | PIC16F18856-E/MV | PIC16F18855-I/MV |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-UQFN (5x5) | 40-UQFN (5x5) - same | 40-UQFN (5x5) - same | 40-UQFN (5x5) - same | 40-UQFN (5x5) - same | 40-UQFN (5x5) - same |
| Flash Memory | 14 KB | 28 KB | 7 KB | 7 KB | 28 KB | 14 KB |
| RAM | 1 KB | 2 KB | 512 B | 512 B | 2 KB | 1 KB |
| Clock Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| I/O Pins | 36 | 36 | 36 | 36 | 36 | 36 |
| Operating Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Temperature Grade | -40C to +125C (Extended) | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +85C (Industrial) |
| Peripheral Pin Select (PPS) | Yes | Yes | Yes | Yes | Yes | Yes |
主要差異化特點
- Functional Safety (FuSa) IEC 60730 Class B support (對比PIC16F18854-E/MV)
- 40-UQFN (5x5) package option preserves more I/O than 28-pin siblings (對比PIC16F18855-I/MV)
- Peripheral Pin Select (PPS) on all digital peripherals (對比Legacy PIC16F877A)
設計說明
The 40-UQFN (5x5) package has an exposed thermal pad that must be soldered to a 5x5 mm copper pad with via-in-pad stitching to maximize heat dissipation. Use Non-Solder Mask Defined (NSMD) land patterns with 0.2 mm pad pitch and 0.4 mm via diameter. Place decoupling capacitors (100 nF + 1 uF) within 2 mm of VDD/VSS pins to minimize switching noise on 32 MHz core transitions.
Enable the on-board Voltage Regulator (VCAP) and place a 1 uF ceramic capacitor at the VCAP pin (RA5) when using the device without an external regulator. For battery applications, leverage the XLP sleep mode with Watchdog Timer (WDT) wake-up for currents below 1 uA typical. Always ramp VDD monotonically and respect the minimum rise-time specification to avoid malfunction during power-on.
Always configure Peripheral Pin Select (PPS) before enabling peripherals; PPS registers are unlocked after a reset and must be written with the unlock sequence (PPSLOCKED bit). Unused I/O pins should be configured as outputs low or inputs with internal pull-ups to minimize power consumption and avoid floating inputs. The ICD 3 / PICkit 4 debugger must connect to RB6 (PGC) and RB7 (PGD) - reserve these pins or remap debug via PPS only with caution.
合規資訊
RoHS compliant per Microchip product page. AEC-Q100 not qualified - use PIC16F15356 or PIC18F K-series for automotive-grade. Functional Safety IEC 60730 Class B supported but requires firmware library (AN2744).
