PIC16LF18876-E/P - 8-Bit 32MHz MCU 28KB Flash 40-PDIP | Microchip
MPN: PIC16LF18876-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.1 | $3.10 |
| 10 | $2.78 | $27.80 |
| 100 | $2.45 | $245.00 |
| 500 | $2.18 | $1,090.00 |
| 1,000 | $1.92 | $1,920.00 |
PIC16LF18876-E/P Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, Flash program memory, SRAM data memory, EEPROM, and configurable peripherals around a Harvard or modified-Harvard architecture. The PIC16F family from Microchip uses a RISC instruction set optimized for deterministic interrupt latency and small code footprint, and the PIC16LF sub-family targets low-voltage (1.8V–3.6V) operation, suitable for battery-powered and energy-harvesting products.
The PIC16LF18876-E/P's headline features include its 32 MHz core providing 8 MIPS throughput, 28 KB self-programmable Flash with code protection, and CIPs (Core Independent Peripherals) such as the CWG, SMT, and ZCD that operate autonomously from the CPU, offloading timing-critical tasks and enabling low active CPU duty cycles for XLP operation. The PPS module allows on-the-fly remapping of digital peripheral pins, simplifying PCB layout when peripherals need to be repositioned. ADC2 adds averaging, filtering, and threshold compare functions to the ADC, useful for sensor conditioning without CPU intervention.
Architecturally, the device uses a 14-bit instruction word with a hardware stack of 16 levels, an internal 32 MHz oscillator (HFINTOSC) with PLL, and supports an external clock up to 32 MHz. The XLP feature set adds deep sleep, ultra-low-power wake sources (WWDT, RTC, IOC), and voltage regulator low-power modes, enabling typical sleep currents in the sub-microamp range and active currents near 100 µA/MHz.
Typical applications for the PIC16LF18876-E/P include industrial sensor conditioning nodes, battery-powered IoT endpoints with measurement duties, home-automation controllers, low-power motor control using the CWG and PWM, smart metering, lighting controls, and portable medical accessories where the 40-pin PDIP footprint simplifies hand-prototyping and field-rework. The 40-pin count exposes up to 36 I/O lines, ample for multi-sensor hubs.
When designing with the PIC16LF18876-E/P, ensure the chosen XLP peripheral wake sources match the application duty cycle - for example, RTC-tick wake versus WWDT-periodic wake. Place decoupling capacitors (100 nF and 1 µF) adjacent to every VDD/VSS pair, and verify the MCLR pull-up when using low-voltage programming mode.
This page synthesizes Microchip XLP-family parametric data, distributor pricing as of 2026-09-24, drop-in compatible same-package PIC16 alternatives, and practical low-power design notes that are not collated in a single datasheet reference.
Drop-in alternatives for PIC16LF18876-E/P — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC16LF18876-E/P (same form factor and footprint) — differing in Package, ADC, Mounting Type, Program Memory (Flash), RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18876-E/P
✅ Drop-In✓ In Stock
$2.04 / Unit
View Datasheet →PIC16LF18877-E/P
✅ Drop-In✓ In Stock
$1.14 / Unit
View Datasheet →PIC16LF18875-E/PT
✅ Drop-In✓ In Stock
$1.4 / Unit
View Datasheet →PIC16LF18855-E/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF18876-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.18 / Unit
View Datasheet →PIC16LF18876-E/P Maximum Ratings & Electrical Characteristics
| Core | PIC 8-bit RISC |
| Instruction Set | 14-bit instruction word |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| Data SRAM | 2 KB |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz (8 MIPS) |
| Operating Voltage Range | 1.8 V to 3.6 V (LF variant) |
| Package | 40-pin PDIP (P) |
| I/O Pins | 36 |
| ADC | 10-bit ADC2 (with Computation) |
| DAC | 5-bit and 10-bit DAC |
| Comparators | Yes |
| PWM Channels | Yes (multiple) |
| Communication | EUSART, 2x SPI, 2x I2C |
| Special Peripherals | CWG, SMT, HLT, WWDT, SCAN/CRC, ZCD, PPS |
| Low-Power Modes | IDLE, DOZE, PMD (XLP) |
| Operating Temperature | -40C to +125C (E grade) |
| Mounting Type | Through-Hole (DIP) |
| RoHS Status | Compliant (PDIP lead-free) |
PIC16LF18876-E/P Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active low; pulled high via external 10k resistor for normal operation |
| Pin 2 | RA0 — PORTA bit 0, digital I/O or analog input AN0 |
| Pin 3 | RA1 — PORTA bit 1, digital I/O or analog input AN1 |
| Pin 4 | RA2 — PORTA bit 2, digital I/O or analog input AN2 |
| Pin 5 | RA3 — PORTA bit 3, digital I/O or analog input AN3; can serve as VREF+ |
| Pin 6 | RA4 — PORTA bit 4, digital I/O or analog input AN4 |
| Pin 7 | RA5 — PORTA bit 5, digital I/O or analog input AN5 |
| Pin 8 | RE0 — PORTE bit 0, digital I/O |
| Pin 9 | RE1 — PORTE bit 1, digital I/O |
| Pin 10 | RE2 — PORTE bit 2, digital I/O |
| Pin 11 | VDD — Positive supply voltage, 1.8V-3.6V for LF variant |
| Pin 12 | VSS — Ground reference |
| Pin 13 | RA7 — PORTA bit 7, digital I/O or oscillator input |
| Pin 14 | RA6 — PORTA bit 6, digital I/O or oscillator output |
| Pin 15 | RC0 — PORTC bit 0, digital I/O |
| Pin 16 | RC1 — PORTC bit 1, digital I/O |
| Pin 17 | RC2 — PORTC bit 2, digital I/O |
| Pin 18 | RC3 — PORTC bit 3, digital I/O |
| Pin 19 | RD0 — PORTD bit 0, digital I/O |
| Pin 20 | RD1 — PORTD bit 1, digital I/O |
| Pin 21 | RD2 — PORTD bit 2, digital I/O |
| Pin 22 | RD3 — PORTD bit 3, digital I/O |
| Pin 23 | RC4 — PORTC bit 4, digital I/O |
| Pin 24 | RC5 — PORTC bit 5, digital I/O |
| Pin 25 | RC6 — PORTC bit 6, digital I/O or TX/CK |
| Pin 26 | RC7 — PORTC bit 7, digital I/O or RX/DT |
| Pin 27 | RD4 — PORTD bit 4, digital I/O |
| Pin 28 | RD5 — PORTD bit 5, digital I/O |
| Pin 29 | RD6 — PORTD bit 6, digital I/O |
| Pin 30 | RD7 — PORTD bit 7, digital I/O |
| Pin 31 | VSS — Ground reference (second pair) |
| Pin 32 | VDD — Positive supply (second pair) |
| Pin 33 | RB0 — PORTB bit 0, digital I/O or analog input AN12 |
| Pin 34 | RB1 — PORTB bit 1, digital I/O or analog input AN10 |
| Pin 35 | RB2 — PORTB bit 2, digital I/O or analog input AN8 |
| Pin 36 | RB3 — PORTB bit 3, digital I/O or analog input AN9 |
| Pin 37 | RB4 — PORTB bit 4, digital I/O |
| Pin 38 | RB5 — PORTB bit 5, digital I/O |
| Pin 39 | RB6 — PORTB bit 6, ICSPCLK / digital I/O |
| Pin 40 | RB7 — PORTB bit 7, ICSPDAT / digital I/O |
Typical Applications
PIC16LF18876-E/P is suitable for 7 applications: Industrial Sensor Conditioning Node, Battery-Powered IoT Endpoint, Home-Automation Lighting Controller, Low-Power Motor Control (BLDC / Stepper), Smart Electricity Meter, Portable Medical Accessory, HVAC Climate Control Module.
Industrial Sensor Conditioning Node
The PIC16LF18876-E/P is well-suited for industrial sensor conditioning nodes because it integrates the ADC2 with hardware averaging and threshold comparison, allowing the CPU to remain in Sleep while the ADC autonomously scans multiple analog channels. With 28 KB Flash, 2 KB SRAM, and 32 MHz core speed, it can run calibration routines, linearization, and Modbus RTU over EUSART. XLP sub-µA sleep current enables multi-year battery life on a 3.6V Li-SOCl2 cell, while the 40-pin PDIP through-hole package simplifies field service and hand-prototyping.
Recommended
Battery-Powered IoT Endpoint
The PIC16LF18876-E/P is ideal for battery-powered IoT endpoints because its XLP deep-sleep current of sub-µA, combined with ultra-low-power wake sources like WWDT, IOC, and RTC, enables multi-year coin-cell operation. Its 32 MHz MIPS throughput can drive LoRaWAN or sub-GHz radio driver code, while ADC2 with on-chip temperature sensor supports battery-health telemetry. The 36 I/O pins accommodate multiple sensors, pushbuttons, and LEDs without external mux, and the 1.8-3.6V VDD range matches single-cell Li-ion/2x AA chemistries directly.
Recommended
Home-Automation Lighting Controller
The PIC16LF18876-E/P fits home-automation lighting controllers because its CWG (Complementary Waveform Generator) produces zero-crossing-aware dimming signals with hardware dead-time insertion, offloading PWM tasks from the CPU. ZCD (Zero-Cross Detect) senses AC mains zero crossings to trigger TRIAC phase-angle control, while PPS remaps digital functions to optimize PCB routing. 28 KB Flash holds ZigBee/Matter stack proxy logic, 2 KB SRAM buffers OTA update images, and 36 I/O pins support multi-channel lighting banks, dimmer knobs, and status LEDs.
Recommended
Low-Power Motor Control (BLDC / Stepper)
The PIC16LF18876-E/P supports low-power BLDC and stepper motor control because its PWM module, CWG with dead-time control, and SMT (Signal Measurement Timer) deliver precise commutation timing for sensorless trapezoidal commutation. The 32 MHz core computes speed PI loops in <2 µs, leaving bandwidth for CAN or LIN communication. ADC2 reads back-EMF on unpowered phases for sensorless operation. 28 KB Flash fits closed-loop FOC or trapezoidal control code; 40-pin PDIP package exposes enough I/O for 3-phase inverter gate drive and Hall-sensor inputs.
Recommended
Smart Electricity Meter
The PIC16LF18876-E/P is suitable for smart electricity meter designs because its 32 MHz MIPS throughput can run metrology algorithms on ADC2 samples while the CWG drives calibration pulse outputs. The ZCD detects AC mains zero crossings for accurate active/reactive power integration, and the WWDT ensures compliance with metrology safety standards. With 28 KB Flash, the device stores tariff tables, time-of-use schedules, and DLMS/COSEM protocol stacks; 2 KB RAM buffers measurement records between communications cycles. 40-pin PDIP package is preferred for utility-grade meters requiring through-hole assembly.
Recommended
Portable Medical Accessory
The PIC16LF18876-E/P enables portable medical accessories because its XLP feature set, wide 1.8-3.6V VDD range, and integrated 10-bit ADC2 with hardware averaging are ideal for battery-powered vital-sign monitoring peripherals such as pulse oximeters, glucose meters, and inhaler trackers. The 28 KB Flash fits FDA-style firmware bootloaders and BLE host stack proxy code, while 2 KB SRAM buffers sensor data between transmissions. PPS remaps the EUSART/SPI to interface with sensors like MAX30102 (PPG) or BMP280 (pressure) without PCB rework, and the 40-pin PDIP footprint accelerates clinical-prototype assembly.
Recommended
HVAC Climate Control Module
The PIC16LF18876-E/P is appropriate for HVAC climate-control modules because its EUSART interfaces with Modbus RTU thermostats while the ADC2 reads thermistor bridges from multiple zones. The CWG generates PWM for variable-speed fan drivers, and the HLT (Hardware Limit Timer) enforces safety shutdown on temperature excursions without CPU intervention. 28 KB Flash holds PID control loops, fault logging, and UI menu code; 36 I/O accommodate keypad, LCD, and relay outputs. The 40-pin PDIP package survives thermal cycling in equipment enclosures better than smaller SMD equivalents, improving field reliability.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18876-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18876-E/P | PIC16LF18877-E/P | PIC16LF18875-E/P | PIC16LF18855-E/P |
|---|---|---|---|---|---|
| Package | 40-pin PDIP (P) | 40-pin PDIP (P) - same | 40-pin PDIP (P) - same | 40-pin PDIP (P) - same | 40-pin PDIP (P) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 28 KB | 28 KB | 56 KB | 14 KB | 14 KB |
| SRAM | 2 KB | 2 KB | 4 KB | 1 KB | 1 KB |
| Operating Voltage | 1.8 V - 3.6 V | 2.3 V - 5.5 V | 1.8 V - 3.6 V | 1.8 V - 3.6 V | 1.8 V - 3.6 V |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| I/O Pins | 36 | 36 | 36 | 36 | 36 |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| ADC2 (10-bit) | Yes | Yes | Yes | Yes | Yes |
| AEC-Q100 Automotive | No (E grade = industrial -40 to +125C) | No | No | No | No |
Key Differentiators
- Largest memory in PIC16LF1885x/7x 40-pin PDIP family (vs PIC16LF18875-E/P)
- Low-voltage (LF) operation down to 1.8V for battery designs (vs PIC16F18876-E/P)
- Upgrade path to PIC16LF18877-E/P for 56 KB Flash without PCB rework (vs PIC16LF18877-E/P)
Design Notes
Place a 100 nF decoupling capacitor adjacent to each VDD/VSS pair (4 pairs in 40-pin PDIP) and a single 1 µF to 10 µF bulk capacitor at the MCU supply pin. For battery-powered designs, the VDD rail should be sourced through a ferrite bead to suppress noise from radio modules. The XLP deep-sleep current is sub-µA only when unused peripherals are gated via PMD and the HFINTOSC is disabled before Sleep; leaving the ADC or comparator active can raise idle current by an order of magnitude.
Avoid relying on the internal weak pull-ups (IPR) for buttons or straps - they are typically 20-100 kΩ and susceptible to EMI. Use external 10 kΩ pull-ups on MCLR and any pin serving as a wake source. Do not connect AC mains-referenced signals directly to the MCU; use optocouplers (e.g., MOC3021 for triac drive) for galvanic isolation. The 40-pin PDIP variant is preferred for hand-prototyping but requires socket headers or careful soldering for production-grade reliability.
Route the analog AVdd/AVss traces symmetrically and keep analog inputs away from PWM outputs and switching-node traces. The PPS module lets you remap digital peripherals to optimize layout, but ADC2 channels are tied to fixed analog pins - reserve AVdd/AVss pair exclusively for analog. Place the 32.768 kHz crystal (if used for RTCC) close to the SOSC1/SOSC2 pins with a ground guard ring, and verify load-capacitor values against the crystal's CL specification to minimize frequency error.
When using EUSART at high baud rates (e.g., 921600 baud) with long PCB traces, add 22-33 pF series capacitors to break DC and prevent reflections; consider a small common-mode choke if traces cross noisy power regions. For SPI at 8 MHz+ with multiple slaves, place a 100 Ω series resistor at each CLK line to dampen ringing and add a small buffer (e.g., 74LVC1G34) if fanout exceeds 4 slaves. PPS reassignment does not change timing characteristics - verify worst-case propagation in the device datasheet.
Compliance Information
RoHS-compliant PDIP lead-free packaging per Microchip product page. E temperature grade = industrial -40C to +125C, NOT AEC-Q100 qualified; for automotive, choose the -I or -V automotive variants of the PIC16F18876 family. Conflict-minerals compliance per Microchip supply-chain disclosure.
