PIC16F18877-I/MV - 8-Bit 32MHz 56KB Flash MCU | Microchip
MPN: PIC16F18877-I/MV ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.66 | $2.66 |
| 10 | $2.42 | $24.20 |
| 100 | $2.18 | $218.00 |
| 500 | $1.95 | $975.00 |
| 1,000 | $1.78 | $1,780.00 |
| 3,000 | $1.55 | $4,650.00 |
PIC16F18877-I/MV Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (Flash), data memory (RAM), non-volatile data storage (EEPROM), and peripheral interfaces on one die. The PIC16F18877 belongs to the Microchip PIC® mid-range 8-bit architecture hierarchy: PIC16F -> PIC16F1xxx enhanced mid-range -> PIC16F188xx family. It is built on CMOS process technology with Microchip's eXtreme Low Power (XLP) design philosophy, enabling active currents as low as a few hundred microamps per MHz and sleep currents in the nanoamp range.
Key features of the PIC16F18877-I/MV include Core Independent Peripherals (CIPs) such as Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), Numerically Controlled Oscillator (NCO), and Data Signal Modulator (DSM). It integrates advanced analog peripherals including a 10-bit ADC with Computation (ADC²), two comparators, and two op-amps. The device also offers multiple communication peripherals (I²C, SPI, EUSART), 11 timers, two 10-bit PWM modules with complementary outputs, and a CRC/SCAN hardware module for Functional Safety.
Operating from 2.3V to 5.5V over the industrial -40°C to +85°C range, the PIC16F18877-I/MV uses a 14-bit instruction word and provides hardware-level touch sensing (mTouch®), zero-cross detection, and windowed watchdog timer. The on-chip 32MHz internal oscillator eliminates the need for an external crystal in most designs, while the UQFN-40 package offers a compact footprint for space-constrained IoT and wearable applications.
Typical applications include low-power IoT sensor nodes, wearable fitness/health monitors, consumer appliance control, battery-powered industrial sensors, and LED lighting controllers. The Functional Safety features make it well suited for white goods, motor control subsystems, and human-machine interface (HMI) panels where IEC 60730 compliance is required.
When designing with this device, ensure the exposed pad (EP) is soldered to the PCB ground plane for proper thermal dissipation and electrical performance. Decoupling capacitors (100nF plus 1µF bulk) must be placed close to VDD pins. The unused I/O pins should be configured as outputs low to minimize power consumption.
This page synthesizes XAIPART distributor pricing, drop-in alternatives within the PIC16F188xx family, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16F18877-I/MV — 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 PIC16F18877-I/MV (same form factor and footprint) — differing in Package, ADC, Program Memory (Flash), Operating Temperature, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18876T-I/MV
✅ Drop-In✓ In Stock
$1.92 / Unit
View Datasheet →PIC16F18876-I/MV
✅ Drop-In✓ In Stock
$1.7 / Unit
View Datasheet →PIC16F18877-E/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F18877T-I/MV
✅ Drop-In✓ In Stock
$1.65 / Unit
View Datasheet →PIC16F18854-I/MV
✅ Drop-In✓ In Stock
$1.18 / Unit
View Datasheet →PIC16F18855-I/MV
✅ Drop-In✓ In Stock
$1.22 / Unit
View Datasheet →PIC16F18877-I/MV Maximum Ratings & Electrical Characteristics
| Architecture | PIC16 8-bit Enhanced Mid-Range |
| Core Size | 8-bit |
| CPU Speed | 32 MHz |
| Program Memory (Flash) | 56 KB (32K x 14 words) |
| Data RAM | 4 KB |
| Data EEPROM | 256 bytes |
| Supply Voltage Range | 2.3 V to 5.5 V |
| Operating Temperature Range | -40 °C to +85 °C (Industrial, I-grade) |
| Package | 40-pin UQFN (MV) 5x5 mm with exposed pad |
| Mounting Type | Surface Mount |
| Number of Timers | 11 |
| ADC | 10-bit ADC with Computation (ADC²) |
| Comparators | 2 |
| Op-amps | 2 |
| PWM Channels | 2 (10-bit, complementary outputs) |
| Communication Peripherals | I²C, SPI, EUSART |
| Core Independent Peripherals (CIP) | CLC, CWG, NCO, DSM, CRC/SCAN |
| RoHS Status | Compliant |
| Low-Power Mode | XLP (eXtreme Low Power) |
| Functional Safety | Yes (FuSa, CRC/SCAN, HLT, Windowed WDT) |
PIC16F18877-I/MV Pin Configuration
| Pin 1 | RA0 — Bidirectional I/O / analog input |
| Pin 2 | RA1 — Bidirectional I/O / analog input |
| Pin 3 | RA2 — Bidirectional I/O / analog input |
| Pin 4 | RA3 — Bidirectional I/O / analog input |
| Pin 5 | RA4 — Bidirectional I/O / analog input |
| Pin 6 | RA5 — Bidirectional I/O / analog input |
| Pin 7 | RA6 — Bidirectional I/O / analog input |
| Pin 8 | RA7 — Bidirectional I/O / analog input |
| Pin 9 | VSS — Ground reference |
| Pin 10 | RA8 — Bidirectional I/O |
| Pin 11 | RA9 — Bidirectional I/O |
| Pin 12 | RA10 — Bidirectional I/O |
| Pin 13 | RA11 — Bidirectional I/O |
| Pin 14 | RA12 — Bidirectional I/O |
| Pin 15 | RA13 — Bidirectional I/O |
| Pin 16 | RA14 — Bidirectional I/O |
| Pin 17 | RA15 — Bidirectional I/O |
| Pin 18 | VDD — Positive power supply |
| Pin 19 | VSS — Ground reference |
| Pin 20 | RB0 — Bidirectional I/O / analog input |
| Pin 21 | RB1 — Bidirectional I/O / analog input |
| Pin 22 | RB2 — Bidirectional I/O / analog input |
| Pin 23 | RB3 — Bidirectional I/O / analog input |
| Pin 24 | RB4 — Bidirectional I/O / analog input |
| Pin 25 | RB5 — Bidirectional I/O / analog input |
| Pin 26 | RB6 — Bidirectional I/O / ICSPCLK |
| Pin 27 | RB7 — Bidirectional I/O / ICSPDAT |
| Pin 28 | RB8 — Bidirectional I/O |
| Pin 29 | RB9 — Bidirectional I/O |
| Pin 30 | RB10 — Bidirectional I/O |
| Pin 31 | RB11 — Bidirectional I/O |
| Pin 32 | RB12 — Bidirectional I/O |
| Pin 33 | RB13 — Bidirectional I/O |
| Pin 34 | RB14 — Bidirectional I/O |
| Pin 35 | RB15 — Bidirectional I/O |
| Pin 36 | RC0 — Bidirectional I/O |
| Pin 37 | RC1 — Bidirectional I/O |
| Pin 38 | RC2 — Bidirectional I/O |
| Pin 39 | RC3 — Bidirectional I/O |
| Pin 40 | RC4 — Bidirectional I/O |
Typical Applications
PIC16F18877-I/MV is suitable for 7 applications: Battery-Powered IoT Sensor Nodes, Wearable Fitness and Health Monitors, Consumer Appliance Control (White Goods), LED Lighting Controllers, Industrial Sensor Transmitters, Capacitive Touch (mTouch) User Interfaces, Automotive Body Electronics (Non-Safety).
Battery-Powered IoT Sensor Nodes
The PIC16F18877-I/MV's XLP eXtreme Low Power technology delivers active currents below 1 mA at 1 MHz and sleep currents in the nanoamp range, making it ideal for battery-powered IoT sensor nodes. With 56KB Flash and 4KB RAM, the part can run an MQTT-SN or CoAP client stack alongside application code, while the 10-bit ADC² handles sensor data acquisition with hardware averaging and threshold detection. The 32 MHz internal oscillator eliminates the need for an external crystal, reducing BOM cost and PCB area. Multiple sleep modes (Doze, Idle, Sleep) allow duty-cycled sensing where the MCU wakes every few seconds, samples a sensor, transmits via SPI/I²C, and returns to sleep — yielding multi-year battery life on two AA cells.
Recommended
Wearable Fitness and Health Monitors
The compact 40-pin UQFN (MV) 5x5 mm package and low-power operation suit wearable fitness/health monitors such as heart-rate bands, step counters, and smartwatches. The PIC16F18877's two op-amps and 10-bit ADC² can directly interface with photoplethysmography (PPG) sensors for heart-rate and SpO2 measurement, while the CWG and PWM modules drive LED indicators or haptic feedback. Core Independent Peripherals (CLC, NCO, DSM) offload waveform generation and signal conditioning from the CPU, allowing the core to remain in sleep longer. According to Microchip datasheet DS40001973, the device's windowed watchdog timer (WWDT) provides Functional Safety supervision required for medical-adjacent devices.
Recommended
Consumer Appliance Control (White Goods)
The PIC16F18877-I/MV is purpose-built for white-goods control boards in washing machines, refrigerators, dishwashers, and ovens. The Functional Safety features (CRC/SCAN, HLT, Windowed WDT) help meet IEC 60730 Class B household appliance safety standards without an external supervisor IC. The two PWM modules with complementary outputs can directly drive motor half-bridges or compressor inverters, while the two comparators handle zero-cross detection for TRIAC dimming of internal lighting. With 56KB Flash, the part can host full appliance firmware including user-interface state machines, fault diagnostics, and communication stacks. The exposed thermal pad on the UQFN package enables reliable operation at elevated internal temperatures.
Recommended
LED Lighting Controllers
The PIC16F18877-I/MV drives constant-current LED drivers and addressable RGB/RGBW strips in architectural, decorative, and stage lighting. The Complementary Waveform Generator (CWG) produces dead-band-controlled complementary PWM outputs ideal for synchronous buck/boost LED driver topologies, while the Numerically Controlled Oscillator (NCO) generates high-resolution dimming frequencies without CPU overhead. The Data Signal Modulator (DSM) combines PWM and modulator outputs to produce DALI, 0-10V, or DMX512 protocol signals. With XLP sleep currents under 100 nA, battery-backed or energy-harvesting lighting controllers can run for years on a single coin cell. The 5x5 mm UQFN footprint fits inside GU10 and MR16 LED bulb form factors.
Recommended
Industrial Sensor Transmitters
The PIC16F18877-I/MV is well suited for 4-20 mA loop-powered and industrial sensor transmitters. The 10-bit ADC² with hardware averaging, threshold detection, and oversampling provides accurate sensor readings with minimal CPU intervention. The 2.3V-5.5V supply range supports both 3.3V and 5V sensor bridges, while the two integrated op-amps can condition thermocouple, RTD, or strain-gauge signals directly without external instrumentation amplifiers. EUSART and SPI peripherals connect to industrial fieldbuses such as RS-485, HART, or IO-Link. According to Microchip datasheet DS40001973, the -40°C to +85°C industrial temperature range covers most factory-floor installations.
Recommended
Capacitive Touch (mTouch) User Interfaces
The PIC16F18877-I/MV supports Microchip's mTouch® capacitive-touch sensing through the on-chip 10-bit ADC² and CVD (Capacitive Voltage Divider) technique, enabling robust touch buttons, sliders, and proximity sensors without external touch ICs. The Configurable Logic Cell (CLC) peripheral can implement hardware-level touch debouncing and wake-on-touch while the CPU remains in deep sleep — a critical feature for battery-powered touch interfaces. The Data Signal Modulator (DSM) and CWG can drive piezo-buzzer haptics for tactile feedback. With 56KB Flash, the device handles rich touch UI firmware including gesture recognition, water-rejection algorithms, and EMI-immunity routines per IEC 61000-4-6 testing standards documented in Microchip application notes.
Recommended
Automotive Body Electronics (Non-Safety)
The PIC16F18877-E/MV (extended temperature) variant serves non-safety automotive body electronics such as interior lighting controllers, seat-position memories, mirror adjusters, and HVAC blend-door actuators. The -40°C to +125°C temperature range and robust EMC performance meet automotive underhood and cabin requirements. The PWM modules drive small DC motors and LED arrays, while the EUSART connects to LIN (Local Interconnect Network) bus for body control modules. Although the -I grade is industrial, the -E grade shares the same silicon and pinout, making the family ideal for automotive designs requiring PPAP documentation. The exposed-pad UQFN package provides reliable thermal performance in enclosed automotive housings.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F18877-I/MV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18876T-I/MV | PIC16F18876-I/MV | PIC16F18877-E/MV | PIC16F18877T-I/MV | PIC16F18854-I/MV | PIC16F18855-I/MV |
|---|---|---|---|---|---|---|---|
| Package | 40-pin UQFN (MV) 5x5 mm | 40-pin UQFN (MV) - same | 40-pin UQFN (MV) - same | 40-pin UQFN (MV) - same | 40-pin UQFN (MV) - same | 40-pin UQFN (MV) - same | 40-pin UQFN (MV) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 56 KB | 28 KB | 28 KB | 56 KB | 56 KB | 7 KB | 32 KB |
| Data RAM | 4 KB | 2 KB | 2 KB | 4 KB | 4 KB | 1 KB | 2 KB |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +125C (Extended) | -40C to +85C | -40C to +85C | -40C to +85C |
| Supply Voltage Range | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V | 2.3V to 5.5V |
| Core Independent Peripherals | CLC, CWG, NCO, DSM | CLC, CWG, NCO, DSM | CLC, CWG, NCO, DSM | CLC, CWG, NCO, DSM | CLC, CWG, NCO, DSM | Reduced set | CLC, CWG, NCO, DSM |
| Param Match vs PIC16F18877-I/MV | 100% | 90% | 90% | 100% | 100% | 70% | 80% |
Key Differentiators
- Largest Flash memory in the PIC16F188xx 40-pin UQFN family (vs PIC16F18876-I/MV)
- Industrial temperature range optimized for cost-sensitive designs (vs PIC16F18877-E/MV)
- Rich Core Independent Peripherals (CIP) set for offloading CPU (vs PIC16F18854-I/MV)
Design Notes
The 40-pin UQFN (MV) package has an exposed thermal pad (EP) on the underside that must be soldered to a PCB ground pad for proper thermal dissipation and electrical performance. Per Microchip application note AN2593, the EP should be connected to the VSS plane through multiple thermal vias (typically 4-9 vias of 0.3 mm diameter). Place at least one 100 nF decoupling capacitor close to each VDD pin and a single 1 µF-10 µF bulk capacitor near the MCU. Keep high-speed traces (SPI, I²C) short and route them over a continuous ground plane.
For battery-powered designs, leverage the XLP (eXtreme Low Power) features to minimize current consumption. Use the 32 kHz secondary oscillator (SOSC) for low-power timing, switch to LFINTOSC (31 kHz) during idle periods, and configure unused peripherals to be disabled in firmware. According to Microchip datasheet DS40001973, sleep currents below 50 nA are achievable with retention SRAM only and the WDT disabled. Use the ADC² with Threshold Detect and Auto-Conversion features to wake the CPU only when sensor data crosses a programmable boundary.
Do not exceed 5.5V on any I/O pin — the PIC16F18877 is NOT 5V tolerant on digital-only pins. Use the internal pull-ups for inputs only when external pull-ups are unavailable; for production designs, prefer external 10 kΩ-100 kΩ pull-ups for noise immunity. The CONFIG words (configuration fuses) must be set explicitly in source code; leaving them at default values disables the PLL and selects the wrong oscillator. For ICD (In-Circuit Debugger) operation, pins RB6 (ICSPCLK) and RB7 (ICSPDAT) must be accessible and not be used by the application as outputs.
Place the MCU at the center of the PCB with analog and digital sections separated by a ground channel to minimize noise coupling into the ADC. Keep analog input traces short and surrounded by ground traces on both sides. For capacitive touch (mTouch) sensors, the electrode traces must not cross noisy digital or power lines; if crossings are unavoidable, place a ground shield between layers. The CLC and NCO peripherals can generate high-frequency signals that may couple into nearby analog traces — use series ferrite beads on noisy power rails if precision ADC readings are required.
Compliance Information
RoHS and REACH compliant per Microchip product page. The -I grade is industrial -40C to +85C, not AEC-Q100 qualified; for AEC-Q100 use the -E grade or /VAO suffix variants. Halogen-free status not explicitly listed in the verified web data.
