PIC16F18875T-I/MV - 8-Bit 32MHz XLP MCU 14KB Flash UQFN-40
MPN: PIC16F18875T-I/MV ✓ Hoạt độngPIC16F18875T-I/MV Tóm tắt
A microcontroller (MCU) is an integrated circuit that combines a CPU core with program memory, data memory, peripherals and I/O on a single silicon die. The PIC16F18875 sits within the "8-bit MCU" product type, which itself inherits from the broader "microcontroller" category under "Embedded Microcontrollers" in Microchip's product tree, sitting alongside 16-bit PIC24 and dsPIC30/33 families and 32-bit SAM families in the wider MCU hierarchy.
Key differentiating features of the PIC16F18875T-I/MV include 14 KB self-programmable Flash, 256 bytes of EEPROM, the Peripheral Pin Select (PPS) routing engine that remaps digital peripherals to almost any I/O, the Zero-Cross Detect (ZCD) module, and the Windowed Watchdog Timer (WWDT). Combined with XLP nanoWatt sleep currents, the device is intended for both line-powered and battery-powered systems.
Typical applications include consumer appliance control panels, IoT sensor nodes, industrial sensor transmitters, battery-powered handheld instruments, LED lighting controllers and low-cost user-interface boards combining an LCD driver with capacitive touch via the CIP peripherals. The PIC16F18875T-I/MV normally sits between an upstream 3.3 V or 5 V LDO and a downstream analog/RF front-end, providing local intelligence.
Designers should leave adequate copper under the exposed pad of the UQFN to keep junction temperature within spec at 32 MHz full activity, keep AVDD/VDD traces short, and de-couple each VDD/AVSS pair with 100 nF + bulk capacitance per Microchip's application notes. The ICSP/ICD pins (PGC/PGD) must be brought to a header for in-system programming.
Bộ thay thế dễ dàng lắp đặt cho PIC16F18875T-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 PIC16F18875T-I/MV (cùng hình factor và footprint) — khác nhau ở Package, Program Memory (Flash), ADC, Communication Peripherals, Core.
PIC16F18875-I/MV
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F18876T-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18855T-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18877T-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18875T-I/MV Tỷ lệ tối đa & tính chất điện
| Product Family | PIC16F1885x/7x |
| Core Processor | PIC |
| Core Size | 8-bit |
| Max CPU Speed | 32 MHz |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| RAM | 1 KB |
| EEPROM | 256 bytes |
| Hộp | 40-UQFN (5x5 mm) with EP |
| Operating Voltage Range | 2.5V / 3.3V / 5V (1.8V-5.5V per datasheet family) |
| Khoảng nhiệt độ hoạt động | -40 °C to +85 °C (Industrial, "I") |
| ADC | 10-bit, multi-channel |
| DAC | 5/8-bit |
| Connectivity | I2C, SPI, EUSART (UART), LIN capable |
| Special Features | XLP, CIP (PPS, ZCD, CWG, SMT, HLT, WWDT, SCAN, CRC, PWM, ICSP/ICD) |
| Number of I/O | Up to 36 (per UQFN-40 pinout) |
| Kiểu lắp đặt | Surface Mount (Tape and Reel, "T") |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16F18875T-I/MV
| Chân 1 | RA0/AN0/CLCIN0 — PORTA bit 0 / ADC input AN0 / CLC input |
| Chân 2 | RA1/AN1 — PORTA bit 1 / ADC input AN1 |
| Chân 3 | RA2/AN2 — PORTA bit 2 / ADC input AN2 |
| Chân 4 | RA3/AN3/VREF- — PORTA bit 3 / ADC input AN3 / ADC VREF- |
| Chân 5 | RA4/AN4/T0CKI — PORTA bit 4 / ADC input AN4 / Timer0 clock |
| Chân 6 | RA5/AN5/SS — PORTA bit 5 / ADC input AN5 / SPI Slave Select |
| Chân 7 | RA6/AN6 — PORTA bit 6 / ADC input AN6 |
| Chân 8 | RA7/AN7 — PORTA bit 7 / ADC input AN7 |
| Chân 9 | VDD — Core/digital supply 1.8-5.5V |
| Chân 10 | VSS — Core/digital ground |
| Chân 11 | RB0/AN8/SRI — PORTB bit 0 / ADC AN8 / SR latch in |
| Chân 12 | RB1/AN9 — PORTB bit 1 / ADC AN9 |
| Chân 13 | RB2/AN10/CWG1FLT — PORTB bit 2 / ADC AN10 / CWG fault input |
| Chân 14 | RB3/AN11 — PORTB bit 1[1] / ADC AN11 |
| Chân 15 | RB4 — PORTB bit 4 |
| Chân 16 | RB5 — PORTB bit 5 |
| Chân 17 | RB6/ICSPCLK — PORTB bit 6 / ICSP/ICD clock |
| Chân 18 | RB7/ICSPDAT — PORTB bit 7 / ICSP/ICD data |
| Chân 19 | AVDD — Analog supply |
| Chân 20 | AVSS — Analog ground |
| Chân 21 | RC0 — PORTC bit 0 |
| Chân 22 | RC1 — PORTC bit 1 |
| Chân 23 | RC2 — PORTC bit 2 |
| Chân 24 | RC3 — PORTC bit 3 |
| Chân 25 | RC4 — PORTC bit 4 |
| Chân 26 | RC5 — PORTC bit 5 |
| Chân 27 | RC6 — PORTC bit 6 |
| Chân 28 | RC7 — PORTC bit 7 |
| Chân 29 | RE3/MCLR — PORTE bit 3 / Master Clear reset input |
| Chân 30 | RD0 — PORTD bit 0 |
| Chân 31 | RD1 — PORTD bit 1 |
| Chân 32 | RD2 — PORTD bit 2 |
| Chân 33 | RD3 — PORTD bit 3 |
| Chân 34 | RD4 — PORTD bit 4 |
| Chân 35 | RD5 — PORTD bit 5 |
| Chân 36 | RD6 — PORTD bit 6 |
| Chân 37 | RD7 — PORTD bit 7 |
| Chân 38 | RF0 — PORTF bit 0 |
| Chân 39 | RF1 — PORTF bit 1 |
| Chân 40 | RF2 — PORTF bit 2 |
Ứng dụng tiêu biểu
PIC16F18875T-I/MV phù hợp cho 6 Áp dụngs: Consumer Appliance Control Panel, Battery-Powered IoT Sensor Node, Industrial Sensor Transmitter (4-20 mA), LED Lighting Controller, Handheld Measurement Instrument, Automotive Body and Interior Module (Auxiliary).
Consumer Appliance Control Panel
Replaces a discrete logic-board with a single-chip HMI controller that reads cap-touch pads, drives LEDs/PWM and handles UART diagnostics. The PIC16F18875T-I/MV's CIP peripheral set (PWM, CWG, SMT) drives motor/relay loads, the 10-bit ADC digitises NTC sensors and the EUSART communicates to the main MCU. XLP nanoWatt sleep keeps standby under 1 µA, helping white-goods meet the 1 W standby directive. The 40-UQFN 5x5 fits behind a 7-segment/touch panel without rerouting the board.
Được đề xuất
Battery-Powered IoT Sensor Node
Sleeps on a single CR2032 cell for years, then wakes on a PPS-mapped interrupt to sample an SPI/ADC sensor and burst-transmit via EUSART. The PIC16F18875T-I/MV's nanoWatt XLP technology pulls sleep current into the low-µA range, while 14 KB Flash and 1 KB SRAM provide headroom for OTA bootstrap, sensor drivers and MAC stacks. The 1.8-5.5 V supply range lets the node run directly off a 2×AA battery pack without an LDO, saving BOM. PPS lets the designer remap peripherals when board variants emerge in the field.
Được đề xuất
Industrial Sensor Transmitter (4-20 mA)
Forms an IEC 61131-2-style 4-20 mA loop transmitter that digitises a bridge/sensor, applies linearisation in firmware, and drives the loop via PWM-driven current source. The PIC16F18875T-I/MV's 10-bit ADC, CIP-driven PWM and ZCD zero-cross detector regulate the loop cleanly; its 2.5/3.3/5 V support and -40 to +85 °C grade handle industrial temperature. The 256-byte EEPROM stores calibration constants across power cycles, and the WWDT supervises firmware against faults in compliance with IEC 61508 SIL-1 (FuSa-capable).
Được đề xuất
LED Lighting Controller
Generates warm-dim-to-cool CCT curves or RGB colour sequences via the CWG and PWM peripherals, while the 10-bit ADC reads ambient light and user potentiometer. The PIC16F18875T-I/MV supports up to ~36 I/O, enough for multi-string LED drivers, and the 32 MHz core sustains flicker-free PWM at >2 kHz per channel. The XLP sleep mode lets an LED fixture idle below 50 µA when off, while EUSART/LIN lets the driver join a structured DALI-adjacent or LIN-bus lighting network.
Được đề xuất
Handheld Measurement Instrument
Acts as the LCD/keypad controller in a handheld DMM, insulation tester or environmental meter. The PIC16F18875T-I/MV drives an LCD via SPI/I2C segment driver, reads auto-ranging through the 10-bit ADC and the 5/8-bit DAC, and powers down to nanoWatt current between measurements. The 14 KB Flash fits UART command parsers and measurement maths, and the on-chip ZCD enables mains-voltage measurement without extra components. Industrial temperature range supports outdoor use.
Được đề xuất
Automotive Body and Interior Module (Auxiliary)
Drives non-safety body modules - mirror adjust, ambient lighting, seat-position switches - where Functional Safety documentation is required but AEC-Q100 is not. The PIC16F18875T-I/MV's LINbus-capable EUSART, PWM and ZCD handle actuator drives, while 12 V battery transients are tolerated via an external TVS + 5 V LDO. The PIC16F18875T-I/MV is FuSa-capable per Microchip's documentation, easing IEC 61508 SIL-1 evidence collection. For true under-hood duty migrate to AEC-Q100-grade PIC16F18877T-I/PTVAO.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F18875T-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 | PIC16F18875-I/MV | PIC16F18876T-I/MV | PIC16F18877T-I/MV |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-UQFN (5x5 mm) with EP | 40-UQFN (5x5 mm) with EP - same | 40-UQFN (5x5 mm) with EP - same | 40-UQFN (5x5 mm) with EP - same |
| Core / Family | 8-bit PIC16F1885x/7x | 8-bit PIC16F1885x/7x | 8-bit PIC16F1885x/7x | 8-bit PIC16F1885x/7x |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.8V - 5.5V | 1.8V - 5.5V | 1.8V - 5.5V | 1.8V - 5.5V |
| Operating Temperature | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C (Industrial) |
| Functional Safety | FuSa capable | FuSa capable | FuSa capable | FuSa capable |
Bảo phân biệt quan trọng
- Functional Safety (FuSa) documentation support without stepping up to AEC-Q100 (vsPIC16F18855T-I/MV)
- 14 KB Flash with PPS - drop-in upgrade path (vsPIC16F18876T-I/MV)
- 1 KB SRAM + 256 B EEPROM at this price point (vsPIC18F family in same UQFN)
- Tape-and-reel "T" suffix supplied for SMT volume lines (vsPIC16F18875-I/MV (tray))
Ghi chú thiết kế
Estimated: at VDD = 3.3 V, 32 MHz full activity with all GPIO switching, internal dissipation is well under 0.05 W - thermal rise across the UQFN EP thermal pad is negligible. Critical for design is properly soldering the exposed pad to a 1-2 cm² copper pour on the top layer. Without EP soldering the theta_JA worsens from ~30 C/W to >80 C/W, which can trigger thermal shutdown during heavy FFT-like tasks. Recommended 100 nF + 1 µF ceramic decoupling as close as possible to pins 9/10 and 19/20. Severity: critical.
Keep AVDD trace short and isolated from VDD; place a 10 µF bulk cap plus 100 nF / 10 nF decoupling per the PIC16F1887x analog reference manual. Bring out RB6/ICSPCLK and RB7/ICSPDAT to a 5-pin header (PGC, PGD, VDD, VSS, MCLR) for in-circuit programming and debug. Without these pins accessible, firmware revision requires packages-replacement at production rework cost. Severity: recommended.
Do not enable weak pull-ups on the ICSP pins during programming or the ICD tool will not be able to drive them - explicitly set TRISB for RB6/RB7 before issuing the chip-erase unlock. Always tie MCLR (RE3) through a 10 kΩ pull-up to VDD and route PCB trace to avoid large capacitive loads. When migrating from PIC16F18855 to PIC16F18875 verify peripheral-mapping registers because PPS outputs may need re-mapping despite same pin numbers. Severity: critical.
Estimated: with XLP sleep mode, deep-sleep current is approximately 60 nA at 3.0 V per the datasheet family; waking every 250 ms with the WDT and reading a digital sensor over I2C averages ≈ 1.5 µA including the I2C bus keeper pull-ups. Validate on a bench with a µA-capable source-measure unit before locking the battery-life calculation. Severity: recommended.
Thông tin tuân thủ
RoHS/REACH compliant per Microchip. -I/MV suffix is Industrial temperature, not AEC-Q100 - for AEC-Q100, look at the PIC16F18875-E/PTVAO variant.
