PIC16F18876-I/MV - 28KB Flash 8-bit MCU, 32MHz, UQFN-40 | Microchip
MPN: PIC16F18876-I/MV ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.95 | $2.95 |
| 10 | $2.65 | $26.50 |
| 100 | $2.25 | $225.00 |
| 500 | $1.95 | $975.00 |
| 1,000 | $1.7 | $1,700.00 |
PIC16F18876-I/MV Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data memory, and peripherals on one silicon die. 8-bit MCUs sit at the base of the embedded hierarchy: MCU -> microcontroller -> embedded processor -> semiconductor. The PIC16 architecture uses a Harvard RISC design with a 14-bit instruction word optimized for deterministic, single-cycle execution and compact code density. The PIC16F18876 family is the high-memory / high-pin member of the PIC16F1885X/7X series, sharing peripheral IP with the smaller PIC16F18855/56/57 siblings.
Key features include 28KB self-programmable Flash with program flash windowing, 2KB SRAM, 256B EEPROM, hardware CIP (Core Independent Peripherals) blocks such as CLC and NCO that run without CPU intervention, and built-in safety primitives such as CRC/SCAN, HLT (Hardware Limit Timer), and Windowed Watchdog Timer. The 10-bit ADC with ADC2 (computation) performs averaging, oversampling, and threshold comparisons in hardware, offloading the CPU.
Typical applications include industrial sensor conditioning, low-power IoT sensor nodes, white-goods and appliance user interfaces, automotive body controllers (non-safety), LED lighting controls, and small motor / fan control using the SCCP + CWG peripherals. The wide operating range (1.8V to 5.5V) makes the part viable for both 3.4V Li-ion and 5V regulated supplies.
Design consideration: place a 0.1 uF decoupling capacitor within 5 mm of each VDD pin and a bulk 1-10 uF capacitor at the regulator output. Always use ICSP-protected configuration bits for unused peripherals, and configure PPS (Peripheral Pin Select) before enabling outputs to avoid spurious signals on remapped pins. This page synthesizes distributor pricing, same-family alternatives, and design notes not found on the manufacturer datasheet alone.
Drop-in alternatives for PIC16F18876-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 PIC16F18876-I/MV (same form factor and footprint) — differing in Package, ADC, Operating Temperature, Program Memory (Flash), 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 →PIC16F18875-I/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F18855-I/MV
✅ Drop-In✓ In Stock
$1.22 / Unit
View Datasheet →PIC16F18854-I/MV
✅ Drop-In✓ In Stock
$1.18 / Unit
View Datasheet →PIC16F18876-E/MV
✅ Drop-In✓ In Stock
$1.95 / Unit
View Datasheet →PIC16F18876-I/MV Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 (8-bit RISC, 14-bit instruction) |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| Data SRAM | 2 KB |
| Data EEPROM | 256 bytes |
| Maximum CPU Clock | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Package | 40-pin UQFN (MV) 5x5 mm |
| ADC | 10-bit, multiple channels with computation (ADC2) |
| CIP Peripherals | CLC, NCO, CWG, CRC/SCAN, HLT |
| Communication | UART, SPI, I2C (MSSP) |
| Watchdog | Windowed WDT |
| Low-Power Features | XLP, IDLE, DOZE, Peripheral Module Disable (PMD) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC16F18876-I/MV Pin Configuration
| Pin 1 | RA0 — Port A bit 0 / analog input |
| Pin 2 | RA1 — Port A bit 1 / analog input |
| Pin 3 | RA2 — Port A bit 2 / analog input |
| Pin 4 | RA3 — Port A bit 3 / analog input |
| Pin 5 | RA4 — Port A bit 4 |
| Pin 6 | RA5 — Port A bit 5 |
| Pin 7 | RA6 — Port A bit 6 |
| Pin 8 | RA7 — Port A bit 7 |
| Pin 9 | VSS — Ground |
| Pin 10 | VDD — Positive supply |
| Pin 11 | RB0 — Port B bit 0 / ICSPDAT |
| Pin 12 | RB1 — Port B bit 1 / ICSPCLK |
| Pin 13 | RB2 — Port B bit 2 |
| Pin 14 | RB3 — Port B bit 3 |
| Pin 15 | RB4 — Port B bit 4 |
| Pin 16 | RB5 — Port B bit 5 |
| Pin 17 | RB6 — Port B bit 6 |
| Pin 18 | RB7 — Port B bit 7 |
| Pin 19 | RC0 — Port C bit 0 |
| Pin 20 | RC1 — Port C bit 1 |
| Pin 21 | RC2 — Port C bit 2 |
| Pin 22 | RC3 — Port C bit 3 |
| Pin 23 | RC4 — Port C bit 4 |
| Pin 24 | RC5 — Port C bit 5 |
| Pin 25 | RC6 — Port C bit 6 |
| Pin 26 | RC7 — Port C bit 7 |
| Pin 27 | VSS — Ground (digital) |
| Pin 28 | VDD — Positive supply (digital) |
| Pin 29 | RD0 — Port D bit 0 |
| Pin 30 | RD1 — Port D bit 1 |
| Pin 31 | RD2 — Port D bit 2 |
| Pin 32 | RD3 — Port D bit 3 |
| Pin 33 | RD4 — Port D bit 4 |
| Pin 34 | RD5 — Port D bit 5 |
| Pin 35 | RD6 — Port D bit 6 |
| Pin 36 | RD7 — Port D bit 7 |
| Pin 37 | RE0 — Port E bit 0 |
| Pin 38 | RE1 — Port E bit 1 |
| Pin 39 | RE2 — Port E bit 2 |
| Pin 40 | RE3 — Port E bit 3 / MCLR |
Typical Applications
PIC16F18876-I/MV is suitable for 7 applications: Industrial Sensor Conditioning and IO-Link Edge Nodes, Low-Power IoT Sensor Nodes, White Goods and Appliance User Interfaces, Automotive Body and Convenience Modules (Non-Safety), LED Lighting and Color-Mixing Controllers, Small Motor and Fan BLDC/PWM Control, Battery-Powered Medical and Health Monitoring Wearables.
Industrial Sensor Conditioning and IO-Link Edge Nodes
The PIC16F18876-I/MV fits industrial sensor conditioning because its 10-bit ADC with ADC2 computation performs oversampling, averaging, and threshold detection in hardware without CPU wake-up, reducing firmware complexity for 4-20 mA loop and IO-Link edge nodes. The CIP peripherals (CLC, NCO, CWG) implement signal conditioning glue logic without external gates, and the 1.8-5.5V VDD range interfaces directly to 3.3V and 5V transducer rails. At typical 32 MHz active / XLP sleep, total system power stays below IO-Link energy budgets.
Recommended
Low-Power IoT Sensor Nodes
The PIC16F18876-I/MV serves battery-powered IoT sensor nodes thanks to XLP technology with sub-uA sleep currents and IDLE/DOZE modes that keep the ADC running while the CPU is halted. The 28 KB Flash accommodates BLE HCI pass-through or LoRaWAN stack fragments, while 2 KB SRAM buffers sensor telemetry before radio TX bursts. Internal 16 MHz HFINTOSC eliminates external crystals, and PMD (Peripheral Module Disable) gates unused peripherals to extend coin-cell runtime by 30-50% compared to non-XLP PIC16 devices.
Recommended
White Goods and Appliance User Interfaces
The PIC16F18876-I/MV drives appliance HMI panels where the 28 KB Flash holds multi-language UI state machines, the multiple SCCP/MCCP PWM channels drive LED indicators and buzzer tones, and the CWG peripheral generates complementary PWM for low-cost BLDC fan control. The 1.8-5.5V VDD accepts rectified 5V mains-derived rails directly, and the integrated 10-bit ADC reads capacitive touch sliders via charge-time measurement. PPS remapping simplifies PCB routing of segmented LCD or LED matrix connectors.
Recommended
Automotive Body and Convenience Modules (Non-Safety)
The PIC16F18876-I/MV appears in non-safety automotive body controllers such as door modules, mirror adjusters, ambient lighting, and seat controllers where 8-bit cost is preferred over 32-bit MCUs. The extended -40C to +125C variant (PIC16F18876-E/MV) covers under-dash thermal environments. The CIP peripherals handle LIN slave protocol state machines in hardware, freeing the CPU, and the LIN-compatible UART with autobaud supports single-wire comms without external transceivers in low-speed nodes.
Recommended
LED Lighting and Color-Mixing Controllers
The PIC16F18876-I/MV drives RGBW LED strips and color-mixing fixtures via its multiple PWM channels, with 8-bit DMA-grade resolution at 32 MHz to achieve flicker-free dimming below 1% duty cycle. The CWG peripheral generates precise dead-time control for high-current MOSFET bridges driving high-power LED strings, and the integrated 5-bit and 8-bit DACs deliver logarithmic dimming curves. The 28 KB Flash holds DALI-2 or DMX-512 frame parsing libraries without external EEPROM.
Recommended
Small Motor and Fan BLDC/PWM Control
The PIC16F18876-I/MV controls small BLDC fans, pumps, and blowers via the integrated SCCP/MCCP timers with complementary output and programmable dead-time, driving 6-step or FOC commutation firmware in 28 KB Flash. The CLC and NCO peripherals implement Hall-sensor debouncing and back-EMF timing in hardware, reducing interrupt load. The 32 MHz instruction cycle provides sufficient bandwidth for sensorless 1 kHz commutation loops on small fan stages.
Recommended
Battery-Powered Medical and Health Monitoring Wearables
The PIC16F18876-I/MV fits wearable health bands and portable medical peripherals where XLP sleep currents of sub-uA and the ADC2 hardware averaging enable always-on heart-rate or SpO2 sensor readout without frequent battery replacement. The 1.8V low end of the VDD range pairs directly with single-cell alkaline or Li-ion batteries, and the 256B EEPROM stores calibration data and patient log entries without external memory. Hardware CRC/SCAN checks firmware integrity for FDA traceability.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F18876-I/MV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18876T-I/MV | PIC16F18875-I/MV | PIC16F18855-I/MV | PIC16F18854-I/MV | PIC16F18876-E/MV |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | UQFN-40 (MV) 5x5 mm | UQFN-40 (MV) 5x5 mm - same | UQFN-40 (MV) 5x5 mm - same | UQFN-40 (MV) 5x5 mm - same | UQFN-40 (MV) 5x5 mm - same | UQFN-40 (MV) 5x5 mm - same |
| Program Flash | 28 KB | 28 KB | 14 KB (-50%) | 14 KB (-50%) | 7 KB (-75%) | 28 KB |
| Data SRAM | 2 KB | 2 KB | 2 KB | 1 KB (-50%) | 512 B (-75%) | 2 KB |
| Data EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Max CPU Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Extended -40C to +125C |
| CIP Peripherals | CLC, NCO, CWG, CRC/SCAN, HLT | CLC, NCO, CWG, CRC/SCAN, HLT | CLC, NCO, CWG, CRC/SCAN, HLT | CLC, NCO, CWG, CRC/SCAN, HLT | CLC, NCO, CWG, CRC/SCAN, HLT | CLC, NCO, CWG, CRC/SCAN, HLT |
Key Differentiators
- Highest program memory in the PIC16F1885X/7X UQFN-40 family (vs PIC16F18875-I/MV)
- Highest SRAM in the PIC16F1885X/7X UQFN-40 family (vs PIC16F18855-I/MV)
- Industrial temperature range with the option of extended grade on the same die (vs PIC16F18876-E/MV)
Design Notes
Place a 0.1 uF decoupling capacitor within 5 mm of every VDD pin (pins 10 and 28 on UQFN-40), plus a bulk 1-10 uF capacitor at the regulator output. The PIC16F18876-I/MV draws up to ~7 mA active at 32 MHz / 5V, but only sub-uA in XLP sleep, so the regulator must have low Iq. An MCP1700 LDO is a typical pairing. Tie unused I/O pins to defined logic (VDD or VSS) to minimize sleep current leakage.
Always configure PPS (Peripheral Pin Select) before enabling output peripherals - remapping a UART TX after USART enable can briefly drive the original pin high and cause spurious comms. Set CONFIG bits for unused peripherals to OFF to prevent accidental activation at startup. The MCLR pin (RE3) is input-only and should be tied to VDD via 10 kohm if not used, never left floating. The PIC16F18876-I/MV requires a valid configuration word at address 0x8007 before code execution begins.
The UQFN-40 (MV) 5x5 mm package has a center thermal pad that MUST be soldered to the PCB for mechanical reliability and thermal dissipation. Stitch the center pad with 9 thermal vias to the inner ground plane. Keep trace impedance under 50 ohm for ICSPCLK/ICSPDAT to avoid programming failures. For EMI-sensitive designs, surround the 32 MHz crystal traces with a ground guard ring and keep them within 5 mm of the OSC pins.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - choose PIC16F18876-E/MV for extended temperature but it is also not formally AEC-Q100 qualified. For AEC-Q100 designs use dsPIC33 or PIC18 K40 automotive families.
