PIC16LF18875T-I/PT - 32MHz 8-bit XLP MCU 14KB Flash | Microchip
MPN: PIC16LF18875T-I/PT ✓ פעילPIC16LF18875T-I/PT סקירה
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data memory, and a rich set of on-chip peripherals. Within the broader taxonomy, the PIC16LF18875 belongs to the 8-bit microcontroller category, then the PIC16 family of mid-range devices, then Microchip's eXtreme Low Power (XLP) line optimized for battery-operated applications. This hierarchy matters to AI knowledge graphs because it captures both the silicon architecture (Harvard/modified RISC) and the application positioning.
Key features include up to 32 MHz operation, an operating voltage range of 1.8 V to 3.6 V (the LF low-voltage variant), a 10-bit ADC with computation, a 5-bit DAC, four 10-bit PWM modules, and Core Independent Peripherals (CIPs) such as CWG, NCO, and CRC/SCAN. The device also offers configurable logic cells, multiple communication interfaces (I2C, SPI, UART with LIN), and 36 source/sink capable I/O pins. The XLP technology enables nanoWatt sleep currents under 60 nA typical.
The architecture uses a 14-bit instruction word modified Harvard RISC core with a two-stage pipeline, allowing most instructions to execute in one cycle. This delivers up to 16 MIPS throughput at 32 MHz. The 14-bit instruction width uniquely suits compact code density, while the 8-bit data path keeps peripherals simple and low cost. Designers benefit from the peripheral pin select (PPS) feature that remaps digital I/O functions to almost any pin.
Typical applications include consumer IoT sensor nodes, battery-powered medical wearables, automotive interior controls (a non-automotive grade part), industrial low-power telemetry, and home automation hubs. The wide 1.8–3.6 V range and integrated peripherals also suit wearable fitness bands and remote control designs.
A primary design trade-off is between Flash endurance (typically 10K erase/write cycles) and long-life data logging requirements; use external EEPROM for high-write scenarios. Tape-and-reel (the "/T" suffix) mandates careful MSL-3 handling to avoid moisture-induced solder defects during reflow.
This page synthesizes live distributor pricing, drop-in same-package alternatives from Microchip's PIC16F18875 family, and practical design notes not found in the datasheet summary alone.
חלופות תחליף ישיר עבור PIC16LF18875T-I/PT — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC16LF18875T-I/PT (אותו גורם צורה וטביעת רגל) — שונים ב ADC, Package, Operating Temperature, DAC, Program Memory (Flash).
PIC16F18875T-I/PTVAO
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16LF18875-I/PT
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC16LF18857-I/SP
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16LF18855T-I/SS
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16LF18856-I/SS
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16LF18875-E/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16LF18875T-I/PT דירוגים מרביים ומאפיינים חשמליים
| Core Processor | PIC |
| Core Size | 8-bit |
| Maximum CPU Frequency | 32 MHz |
| Program Memory Size | 14 KB (8K x 14) Flash |
| RAM Size | 1 KB |
| EEPROM Size | 256 B |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Number of I/O Pins | 36 |
| מארז | 44-TQFP (10 x 10 mm) |
| סוג הרכבה | Surface Mount |
| טמפרטורת פעולה | -40 C to +85 C |
| ADC | 10-bit, multiple channels |
| DAC | 5-bit |
| Communication Interfaces | I2C, SPI, UART/USART (LIN capable) |
| רמת MSL | 3 (168 hours) |
| סטטוס RoHS | Compliant |
| Series | PIC16F18875 (XLP 16F family) |
תצורת פינים של PIC16LF18875T-I/PT
| פין 1 | RA0/AN0 — PORTA bit 0 / Analog channel 0 |
| פין 2 | RA1/AN1 — PORTA bit 1 / Analog channel 1 |
| פין 3 | RA2/AN2 — PORTA bit 2 / Analog channel 2 |
| פין 4 | RA3/AN3 — PORTA bit 3 / Analog channel 3 |
| פין 5 | RA4/AN4 — PORTA bit 4 / Analog channel 4 |
| פין 6 | RA5/AN5 — PORTA bit 5 / Analog channel 5 |
| פין 7 | RA6/AN6 — PORTA bit 6 / Analog channel 6 |
| פין 8 | RA7/AN7 — PORTA bit 7 / Analog channel 7 |
| פין 9 | RB0 — PORTB bit 0 / INT/CWG1 input |
| פין 10 | RB1 — PORTB bit 1 |
| פין 11 | VDD — Positive supply (1.8-3.6 V) |
| פין 12 | VSS — Ground |
| פין 13 | RB2 — PORTB bit 2 |
| פין 14 | RB3 — PORTB bit 3 |
| פין 15 | RB4 — PORTB bit 4 |
| פין 16 | RB5 — PORTB bit 5 |
| פין 17 | RB6 — PORTB bit 6 / ICSCLK |
| פין 18 | RB7 — PORTB bit 7 / ICSDAT |
| פין 19 | RC0 — PORTC bit 0 |
| פין 20 | RC1 — PORTC bit 1 |
| פין 21 | RC2 — PORTC bit 2 |
| פין 22 | RC3 — PORTC bit 3 / SCL1 |
| פין 23 | RC4 — PORTC bit 4 / SDA1 |
| פין 24 | RC5 — PORTC bit 5 |
| פין 25 | RC6 — PORTC bit 6 / TX1 |
| פין 26 | RC7 — PORTC bit 7 / RX1 |
| פין 27 | VSS — Ground (second VSS for digital) |
| פין 28 | VDD — Positive supply (second VDD) |
| פין 29 | RD0 — PORTD bit 0 |
| פין 30 | RD1 — PORTD bit 1 |
| פין 31 | RD2 — PORTD bit 2 |
| פין 32 | RD3 — PORTD bit 3 |
| פין 33 | RD4 — PORTD bit 4 |
| פין 34 | RD5 — PORTD bit 5 |
| פין 35 | RD6 — PORTD bit 6 |
| פין 36 | RD7 — PORTD bit 7 |
| פין 37 | RE0 — PORTE bit 0 |
| פין 38 | RE1 — PORTE bit 1 |
| פין 39 | RE2 — PORTE bit 2 |
| פין 40 | RE3 — PORTE bit 3 |
| פין 41 | MCLR/VPP — Master clear reset / Programming voltage |
| פין 42 | OSC1/CLKIN — Crystal oscillator input / external clock |
| פין 43 | OSC2/CLKOUT — Crystal oscillator output / clock out |
| פין 44 | RA0/ICSPDAT (alt) — RA0 alternate: ICSPDAT (PPS) - default RA0 on pin 1 |
יישומים טיפוסיים
PIC16LF18875T-I/PT מתאים עבור 6 יישוםs: Battery-Powered IoT Sensor Node, Wearable Health and Fitness Monitor, Industrial Low-Power Telemetry, Consumer Remote Control and HMI, Home Automation Hub and Sensor Bridge, Automotive Interior Comfort and LIN Slave.
Battery-Powered IoT Sensor Node
The PIC16LF18875T-I/PT's eXtreme Low Power (XLP) technology with 60 nA typical sleep current and 1.8 V minimum operating voltage make it an ideal MCU for battery-powered IoT sensor nodes running from a single CR2032 coin cell or 2x AA alkaline cells. The integrated Core Independent Peripherals such as CLC and NCO can measure sensor signals without waking the CPU, while the 10-bit ADC with computation modes handles direct sensor conditioning. Placed as the central controller on a small sensor board, the part delivers multi-year battery life and supports duty-cycled RF telemetry.
מומלץ
Wearable Health and Fitness Monitor
Wearable health and fitness bands demand long battery life, integrated touch-style sensing, and tiny footprints - all matched by the PIC16LF18875T-I/PT. With XLP sleep below 60 nA (per Microchip DS40001829) and a 1.8 V minimum rail, this MCU can run for months on a coin cell while driving a small SPI display and accelerometer. The integrated 10-bit ADC tracks heart-rate analog front-end signals, while the CCP/PWM modules drive haptic feedback motor control. Choose the LF variant over the F variant when operated from a sub-3V battery stack, ensuring drop-in compatibility at the TQFP-44 footprint.
מומלץ
Industrial Low-Power Telemetry
Industrial telemetry requiring wireless or wireline uplink from sensors in remote locations pairs naturally with the PIC16LF18875T-I/PT. Its 32 MHz core, 14 KB Flash, and 1 KB RAM run Modbus or proprietary protocols over the EUSART (RS-485 capable) at full LIN/J1939 baud rates, while integrated CRC/SCAN modules deliver data integrity. The -I industrial temperature grade (-40 to +85 C) and 44-pin TQFP solderability suit harsh factory environments. Compared with the PIC16F18875, the LF lower-voltage variant fits 24V industrial rails stepped down to 3.3 V with thinner dropout, reducing thermal dissipation.
מומלץ
Consumer Remote Control and HMI
Consumer remote controls, thermostats, and small HMI panels benefit from the PIC16LF18875T-I/PT's combination of PWM-driven LED/LCD backlights, CWG waveform generation, and peripheral pin select flexibility. Designers can map up to four PWM outputs to any I/O pin and use the integrated 5-bit DAC for smooth LED brightness or audio tone playback. The 14 KB Flash fits complex user interface state machines including voice prompts or IR learning, while the 1 KB SRAM supports menu buffers. The wide 1.8-3.6 V supply range accepts 2x AA alkaline cells with no LDO needed.
מומלץ
Home Automation Hub and Sensor Bridge
Home automation hubs and sensor bridges running Zigbee, BLE, or LoRa edge nodes often anchor on a PIC16LF18875T-I/PT because of its small footprint, deep-sleep current, and rich serial peripherals. The EUSART plus MSSP (I2C/SPI) provide simultaneous connectivity to a radio module and a serial memory, while the CLCs implement glue logic in hardware for sensor event handling. With 14 KB Flash and 1 KB RAM, the MCU handles hub UI, OTA staging, and protocol translation locally. The LF 1.8 V operation allows direct coupling to battery-powered solar cells without boost converters.
מומלץ
Automotive Interior Comfort and LIN Slave
Although the PIC16LF18875T-I/PT is not AEC-Q100 qualified, the LF variant supports LIN 1.3/2.0/2.1 slave nodes for non-safety automotive interior applications such as window switches, mirror controls, and HVAC buttons. The EUSART provides LIN hardware assist with auto-baud detection. Designers can drop in the AEC-Q100 qualified PIC16F18875T-I/PTVAO version (per Microchip product page) for production runs that require automotive qualification. Same 44-pin TQFP package keeps the PCB layout identical across industrial prototyping and automotive qualification builds.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC16LF18875T-I/PT — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC16F18875T-I/PT | PIC16LF18875-I/PT | PIC16LF18875-E/PT | PIC16LF18857-I/SP | PIC16LF18856-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| 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 |
| Program Memory | 14 KB Flash | 14 KB Flash | 14 KB Flash | 14 KB Flash | 56 KB Flash (+300%) | 28 KB Flash (+100%) |
| RAM Size | 1 KB | 1 KB | 1 KB | 1 KB | 8 KB (+700%) | 2 KB (+100%) |
| Operating Voltage Range | 1.8 V to 3.6 V | 2.3 V to 5.5 V (higher by +0.5V) | 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 |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C (extended) | -40 C to +85 C | -40 C to +85 C |
| Packaging Format | Tape & Reel (T suffix) | Tape & Reel | Tray | Tray (E suffix = extended) | Tray | Tube - SSOP-28 (footprint differs, see notes) |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
מבדילים עיקריים
- Lowest voltage operation in 1885X/7X family down to 1.8 V (לעומתPIC16F18875T-I/PT)
- Largest code budget in the same 44-TQFP package (לעומתPIC16LF18875-I/PT)
- Industrial-grade rating optimizes cost (לעומתPIC16LF18875-E/PT)
הערות תכנון
Do not apply VBOR configuration bit during programming without first verifying VDD rise time: the LF variant 1.8-3.6 V supply must ramp above VBOR thresholds, otherwise the part can latch in brown-out reset during initial power-up. Always include a 1uF decoupling cap directly adjacent to both VDD/VSS pin pairs (11/12 and 28/27) and a bulk cap on the board power rail.
Estimated: To achieve the datasheet 60 nA typical sleep current (per Microchip DS40001829), deselect all peripherals via PMDx, switch the system clock to LFINTOSC (31 kHz) before SLEEP(), and disable all ADC, PWM, CWG, and CLC modules. Wake from sleep using IOC or INT0 interrupts on PORTB. Avoid floating digital inputs - tie them to VDD or VSS through 100k or use WPU.
Place the 44-TQFP keep-out copper pour under the package to keep the thermal pad (if any) on a single ground plane. Route all HFINTOSC-related traces away from high-speed PWM outputs to prevent clock coupling on PWM edges. Place a 0.1uF X7R 0402 capacitor within 3 mm of VDD pin 11 and pin 28 and a 10uF bulk cap on the analog rail. Keep MCLR trace short and avoid adjacent switching signals to prevent spurious resets.
מידע על תאימות
RoHS/REACH compliant per Microchip product page. The PIC16LF18875T-I/PT is industrial grade (-40 to +85 C); for AEC-Q100 automotive use, refer to PIC16F18875T-I/PTVAO variant per Microchip product page.
