PIC16LF18876-I/MV - 32MHz 8-bit MCU, 28KB Flash | Microchip
MPN: PIC16LF18876-I/MV ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.45 | $3.45 |
| 10 | $3.05 | $30.50 |
| 100 | $2.62 | $262.00 |
| 500 | $2.28 | $1,140.00 |
| 1,000 | $1.95 | $1,950.00 |
PIC16LF18876-I/MV Overview
An 8-bit microcontroller (MCU) is a small, self-contained computing device that integrates a CPU, non-volatile program memory, volatile data memory, and a mix of analog and digital peripherals onto a single silicon die. In the broader electronics taxonomy it sits under microcontroller -> embedded processor -> semiconductor device. The PIC16 family uses a modified Harvard RISC architecture with a 14-bit instruction word, and the 'LF' suffix denotes the extended low-voltage operating range (1.8V to 3.6V) that complements the standard PIC16F parts (which run up to 5.5V). The '18876' family is positioned in the upper-mid tier of the PIC16 line, integrating rich analog and Core Independent Peripherals (CIPs) so that many tasks - timing, signal conditioning, communications - run without waking the CPU.
Key features of this part include a 10-bit ADC with computation, up to 36 I/O pins, support for up to 32MHz internal oscillator operation, integrated Core Independent Peripherals such as CRC/SCAN and HLT (Hardware Limit Timer), and eXtreme Low Power (XLP) technology with deep-sleep currents in the nanoampere range. The on-chip peripherals - including multiple UART, SPI, I2C, PWM, comparators, and op-amps - allow designers to assemble a complete sensor or motor-control node with few external components.
Architecturally the device pairs an 8-bit accumulator-based ALU with a 14-bit instruction set, deterministic interrupt latency, and a configurable oscillator block that supports external crystals, internal HF/LF oscillators, and a 32kHz low-power crystal mode. The 28KB Flash and 2KB RAM are sized for typical mid-tier embedded firmware stacks - sensor fusion, protocol bridges, and small RTOS workloads - and the in-circuit debugger (ICD) interface enables field firmware updates.
Typical applications include industrial sensor nodes, low-power IoT edge devices, battery-powered instrumentation, home appliance control boards, and automotive interior subsystems. Its 36 I/O count and analog-rich peripherals also make it suitable for small motor-control loops, multi-channel LED drivers, and capacitive-touch user interfaces.
When designing with the PIC16LF18876-I/MV, observe the 1.8V to 3.6V supply window for LF parts (going above 3.6V will damage the part - if a 5V rail is required, select the PIC16F18876 instead), place the exposed pad (EP) on a continuous ground plane for thermal relief, and reserve the ICSPCLK/ICSPDAT pins for in-circuit programming access. Plan the I/O map against the 36 available pins early in the schematic phase.
This page synthesizes distributor pricing, drop-in PIC16 family alternatives, and practical PCB design guidance not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16LF18876-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 PIC16LF18876-I/MV (same form factor and footprint) — differing in ADC, Package, Core, DAC, Operating Temperature Range.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF18875-I/MV
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.52 / Unit
View Datasheet →PIC16LF18876T-I/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F18876-I/MV
✅ Drop-In✓ In Stock
$1.7 / Unit
View Datasheet →PIC16F18876T-I/MV
✅ Drop-In✓ In Stock
$1.92 / Unit
View Datasheet →PIC16LF18876-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF18876-I/MV Maximum Ratings & Electrical Characteristics
| Product Family | PIC16F (XLP 16F) |
| Core Architecture | 8-bit RISC (PIC16 enhanced mid-range) |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| Data RAM | 2 KB |
| Operating Voltage (VDD) | 1.8 V to 3.6 V (LF variant) |
| I/O Pins | 36 |
| ADC | 10-bit |
| Package | 40-pin UQFN (5x5 mm) with exposed pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +85 C (industrial grade) |
| Temperature Grade | Industrial |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Peripheral Highlights | CRC/SCAN, HLT, CWG, NCO, PWM, multiple UART/SPI/I2C, op-amps, comparators |
PIC16LF18876-I/MV Pin Configuration
| Pin 1 | RA5 — GPIO RA5 / digital input |
| Pin 2 | RA4 — GPIO RA4 |
| Pin 3 | RA3 — GPIO RA3 |
| Pin 4 | RA2 — GPIO RA2 |
| Pin 5 | RA1 — GPIO RA1 / ICSPCLK |
| Pin 6 | RA0 — GPIO RA0 / ICSPDAT |
| Pin 7 | VSS — Ground |
| Pin 8 | RA7 — GPIO RA7 / CLKIN |
| Pin 9 | RA6 — GPIO RA6 / CLKOUT |
| Pin 10 | RC0 — GPIO RC0 |
| Pin 11 | RC1 — GPIO RC1 |
| Pin 12 | RC2 — GPIO RC2 |
| Pin 13 | RC3 — GPIO RC3 |
| Pin 14 | RC4 — GPIO RC4 |
| Pin 15 | RC5 — GPIO RC5 |
| Pin 16 | RC6 — GPIO RC6 / TX |
| Pin 17 | RC7 — GPIO RC7 / RX |
| Pin 18 | RB7 — GPIO RB7 |
| Pin 19 | RB6 — GPIO RB6 / PGC |
| Pin 20 | RB5 — GPIO RB5 / PGD |
| Pin 21 | RB4 — GPIO RB4 |
| Pin 22 | RB3 — GPIO RB3 |
| Pin 23 | RB2 — GPIO RB2 |
| Pin 24 | RB1 — GPIO RB1 |
| Pin 25 | RB0 — GPIO RB0 |
| Pin 26 | VDD — Positive supply (1.8 V to 3.6 V) |
| Pin 27 | RD7 — GPIO RD7 |
| Pin 28 | RD6 — GPIO RD6 |
| Pin 29 | RD5 — GPIO RD5 |
| Pin 30 | RD4 — GPIO RD4 |
| Pin 31 | RD3 — GPIO RD3 |
| Pin 32 | RD2 — GPIO RD2 |
| Pin 33 | RD1 — GPIO RD1 |
| Pin 34 | RD0 — GPIO RD0 |
| Pin 35 | RE3 — GPIO RE3 / MCLR |
| Pin 36 | RE2 — GPIO RE2 |
| Pin 37 | RE1 — GPIO RE1 |
| Pin 38 | RE0 — GPIO RE0 |
| Pin 39 | AVSS — Analog ground |
| Pin 40 | AVDD — Analog supply (tie to VDD) |
Typical Applications
PIC16LF18876-I/MV is suitable for 7 applications: Industrial Sensor Node, Battery-Powered IoT Edge Device, Home Appliance Control Board, Capacitive Touch User Interface, Multi-Channel LED Driver Board, Automotive Body Electronics Module, Portable Medical Monitoring Accessory.
Industrial Sensor Node
The PIC16LF18876-I/MV fits industrial sensor nodes because its 32 MHz core, 28 KB Flash, and 10-bit ADC with computation enable local sensor conditioning without an external amplifier. The on-chip Core Independent Peripherals - CRC/SCAN for memory integrity, HLT for watchdog-style timing - run in sleep mode at sub-microamp currents, allowing battery-powered 4-20 mA loop replacements to last 5-10 years on a single primary cell. Its 1.8 V to 3.6 V supply window is well-matched to lithium-thionyl chloride cells.
Recommended
Battery-Powered IoT Edge Device
For battery-powered IoT edge devices, the PIC16LF18876-I/MV's eXtreme Low Power (XLP) technology delivers sleep currents in the nanoampere range, and its 1.8 V minimum VDD allows operation directly from a single alkaline or lithium cell down to end-of-life voltage. The 28 KB Flash supports BLE/Zigbee stack fragments or LoRaWAN MAC layers for duty-cycled sensor reporting. The 36 I/O count accommodates multi-sensor fusion boards without external GPIO expanders.
Recommended
Home Appliance Control Board
Home appliance control boards - washing machines, dishwashers, induction cooktops - benefit from the PIC16LF18876-I/MV's 36 I/O count, integrated op-amps for current sensing, and CWG (Complementary Waveform Generator) for IGBT/MOSFET half-bridge drives. The 28 KB Flash supports user-interface state machines plus motor-control loops, and the 1.8 V to 3.6 V supply aligns with 3.3 V logic rails. Multiple UART/SPI/I2C instances enable simultaneous HMI display, sensor hub, and inverter communications.
Recommended
Capacitive Touch User Interface
Capacitive touch user interfaces for kitchen appliances, automotive interiors, and consumer electronics use the PIC16LF18876-I/MV's mTouch peripheral and CVD (Capacitive Voltage Divider) front end to scan 8-16 touch electrodes without external analog components. The 32 MHz CPU executes the touch-decision algorithm in microseconds, while the integrated Core Independent Peripherals handle LED PWM feedback in parallel without CPU loading. The 40-pin UQFN 5x5 mm package enables compact touch-pad PCBs.
Recommended
Multi-Channel LED Driver Board
Multi-channel LED driver boards - architectural lighting, horticultural fixtures, display backlights - leverage the PIC16LF18876-I/MV's 16-bit PWM channels and CWG to dim and color-mix LED strings with high resolution. The 28 KB Flash supports DMX-512 / DALI / 0-10 V protocol stacks alongside the dimming algorithm, and the 2 KB RAM is sufficient for 16-channel color-point buffers. The 1.8 V to 3.6 V supply is compatible with constant-current LED driver ICs operating from a 3.3 V rail.
Recommended
Automotive Body Electronics Module
Automotive body electronics modules - door modules, seat controllers, HVAC blend-door actuators - use the PIC16LF18876-I/MV's CAN-ready peripherals and LIN support, combined with the 36 I/O count to drive multiple loads. The -40 C to +85 C industrial temperature grade covers cabin environments. Note: for under-hood AEC-Q100-qualified applications, select the PIC16F18876-E/MV or PIC16F18876-I/MV Q1 variants instead - the standard part is NOT AEC-Q100 qualified.
Recommended
Portable Medical Monitoring Accessory
Portable medical monitoring accessories - pulse oximeters, single-lead ECG patches, wearable spirometers - benefit from the PIC16LF18876-I/MV's low-power sleep modes that extend battery life into weeks, and its 10-bit ADC with computation for sensor signal conditioning. The 28 KB Flash fits small embedded algorithms for heart-rate detection or respiratory waveform analysis. The industrial -40 C to +85 C temperature grade covers body-temperature operating ranges. For FDA-grade medical designs, perform additional verification and validation per IEC 62304.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18876-I/MV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF18875-I/MV | PIC16LF18876T-I/MV | PIC16F18876-I/MV | PIC16F18876T-I/MV | PIC16LF18876-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-pin UQFN (5x5 mm) EP | 40-pin UQFN (5x5 mm) EP - same | 40-pin UQFN (5x5 mm) EP - same | 40-pin UQFN (5x5 mm) EP - same | 40-pin UQFN (5x5 mm) EP - same | 40-pin PDIP - DIFFERENT footprint (through-hole) |
| Operating Voltage (VDD) | 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 5.5 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V |
| Flash Program Memory | 28 KB | 14 KB (-50%) | 28 KB | 28 KB | 28 KB | 28 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| I/O Pins | 36 | 36 | 36 | 36 | 36 | 36 |
| Temperature Grade | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C |
| Core / Family | PIC16F XLP enhanced mid-range 8-bit | PIC16F XLP enhanced mid-range 8-bit | PIC16F XLP enhanced mid-range 8-bit | PIC16F XLP enhanced mid-range 8-bit | PIC16F XLP enhanced mid-range 8-bit | PIC16F XLP enhanced mid-range 8-bit |
| AEC-Q100 Automotive Qualified | No | No | No | No (select PIC16F18876-I/MV Q1 suffix for AEC-Q100) | No | No |
Key Differentiators
- Lower operating voltage minimum (1.8 V) for single-cell battery designs (vs PIC16F18876-I/MV)
- Rich Core Independent Peripherals (CIPs) reduce CPU loading (vs PIC16LF15375)
- 40-pin UQFN 5x5 mm footprint with 36 I/O (vs PIC16LF18854-I/SO)
Design Notes
Decouple VDD and AVDD each with a 100 nF ceramic capacitor placed within 5 mm of the respective pin. For the 40-pin UQFN EP variant, the exposed pad is the primary thermal and electrical ground - solder it to a continuous ground plane with at least 4 thermal vias to the inner layers. Estimated: at 32 MHz active current of ~6 mA + peripheral current, total active power is ~20 mW at 3.3 V - well within UQFN thermal limits even without a dedicated heatsink.
Reserve pins RA0/RA1 (ICSPDAT/ICSPCLK) and RB6/RB5 (PGC/PGD) for in-circuit serial programming access - even if not used in production, leave test pads or a programming header to enable field firmware updates. The 5x5 mm UQFN has 0.4 mm pitch pads - use NSMD (non-solder mask defined) pads with at least 0.2 mm copper-to-pad clearance to prevent solder bridging. Estimated trace widths of 0.15 mm are appropriate for signal traces under the part.
Do NOT apply >3.6 V to the PIC16LF18876 LF part - the LF silicon lacks the higher-voltage tolerance of the standard PIC16F18876 and will be damaged. Do NOT leave MCLR (RE3) floating - tie to VDD via a 10 kohm resistor or drive it actively. Do NOT rely on the internal oscillator at temperatures below -20 C without calibrating at the operating temperature - crystal drift compensation may be required for UART communications at low temperatures.
Place the UQFN-40 footprint centered on a 1 square inch copper pour on the top layer, stitched to a ground plane on layer 2 with 0.3 mm thermal vias spaced 1 mm apart. Keep analog signal traces (those routed to RA0-RA5 and the ADC channels) short and away from PWM and digital switching traces. The mTouch sensing traces should be guarded by a ground trace on both sides and not cross any switching signal trace.
Compliance Information
RoHS compliant and lead-free per Microchip product page. NOT AEC-Q100 qualified - select PIC16F18876-E/MV (Q1 suffix) for AEC-Q100 automotive. Halogen-free status not explicitly listed in the verified distributor data.
