PIC16LF18877-I/MV - 32MHz 8-Bit XLP MCU 56KB Flash | Microchip
MPN: PIC16LF18877-I/MV ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.1 | $3.10 |
| 10 | $2.78 | $27.80 |
| 100 | $2.36 | $236.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.82 | $1,820.00 |
PIC16LF18877-I/MV Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, data RAM, and peripheral interfaces in one package. The 'PIC' architecture uses a Harvard design with separate program and data buses, optimizing instruction fetch and data access in parallel. 8-bit MCUs dominate cost- and power-sensitive applications such as consumer appliances, sensor nodes, and human-interface devices where 32-bit performance is not required. The PIC16(L)F18877 sits in Microchip's mid-range XLP portfolio, positioned between baseline 8-bit parts and higher-pin-count 16-bit dsPIC devices.
Key features of the PIC16LF18877 include the 32 MHz internal oscillator with 4x PLL option, 10-bit ADC2 with computation, peripheral pin select (PPS) for flexible signal routing, and Core Independent Peripherals such as the CRC/SCAN, HLT (Hardware Limit Timer), and CWG (Complementary Waveform Generator). The 'LF' prefix denotes the F (low-voltage, low-power) variant supporting 1.8 V to 3.6 V operation; the 'F' non-LF variant extends up to 5.5 V. The 256 B EEPROM and the 10-bit ADC2 with internal voltage reference are especially useful for sensor calibration data and battery monitoring.
The PIC16LF18877 is qualified for industrial-grade operation (-40C to +85C for the 'I' suffix) and supports JTAG/ICSP in-circuit programming plus debug. PPS allows digital peripherals to be remapped to almost any I/O pin, simplifying PCB routing and enabling late-stage design changes. Compared with earlier PIC16F1X devices, the 18877 family adds the ADC2 with hardware accumulation and the CWG, which is useful for motor control and power-converter gating.
Typical applications include low-power IoT sensor nodes, battery-powered wearables, consumer white goods, HVAC control panels, motor control signal conditioning, and industrial sensor hubs. The 32 MHz MIPS throughput and PPS flexibility allow a single MCU to serve as both sensor interface and communications gateway.
Design consideration: the UQFN-40 (5x5) package has a center exposed thermal pad that MUST be soldered to a ground copper pour for mechanical reliability and thermal dissipation. Decoupling capacitors (100 nF + 1 uF) should be placed within 3 mm of each VDD pin. Programming pins (ICSPCLK/ICSPDAT) must be accessible for production flashing.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16LF18877-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 PIC16LF18877-I/MV (same form factor and footprint) — differing in ADC, Package, CPU Speed, Core Architecture, DAC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF18877-E/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF18876-I/MV
✅ Drop-In✓ In Stock
$1.95 / Unit
View Datasheet →PIC16LF18875-I/MV
✅ Drop-In✓ In Stock
$1.52 / Unit
View Datasheet →PIC16F18877-I/MV
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16LF1789-I/MV
✅ Drop-In✓ In Stock
$2.51 / Unit
View Datasheet →PIC16LF18877-I/MV Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit (Harvard) |
| Family | PIC16(L)F1885X/7X |
| CPU Speed | 32 MHz (max) |
| Program Memory (Flash) | 56 KB (32K x 14 words) |
| Data EEPROM | 256 B |
| Supply Voltage (VDD) | 1.8 V to 3.6 V (LF variant) |
| I/O Pins | 36 (typical for 40-pin UQFN) |
| ADC | 10-bit ADC2 with computation |
| Communication | EUSART, SPI, I2C |
| PPS (Peripheral Pin Select) | Yes |
| Core Independent Peripherals | CRC/SCAN, HLT, CWG, NCO |
| Package | 40-pin UQFN (MV) 5x5 mm with EP |
| Operating Temperature | -40C to +85C (I suffix) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16LF18877-I/MV Pin Configuration
| Pin 1 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| Pin 2 | RA5 — General-purpose I/O with PPS remap |
| Pin 3 | RA4 — General-purpose I/O with PPS remap |
| Pin 4 | RA3 — General-purpose I/O / MCLR |
| Pin 5 | RA2 — General-purpose I/O with PPS remap |
| Pin 6 | RA1 — ICSPCLK / general-purpose I/O |
| Pin 7 | RA0 — ICSPDAT / general-purpose I/O |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RA7 — General-purpose I/O with PPS remap |
| Pin 10 | RA6 — General-purpose I/O with PPS remap |
| Pin 11 | RC0 — General-purpose I/O with PPS remap |
| Pin 12 | RC1 — General-purpose I/O with PPS remap |
| Pin 13 | RC2 — General-purpose I/O with PPS remap |
| Pin 14 | RC3 — General-purpose I/O with PPS remap |
| Pin 15 | RC4 — General-purpose I/O with PPS remap |
| Pin 16 | RC5 — General-purpose I/O with PPS remap |
| Pin 17 | RC6 — General-purpose I/O with PPS remap |
| Pin 18 | RC7 — General-purpose I/O with PPS remap |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| Pin 21 | RB0 — General-purpose I/O with PPS remap |
| Pin 22 | RB1 — General-purpose I/O with PPS remap |
| Pin 23 | RB2 — General-purpose I/O with PPS remap |
| Pin 24 | RB3 — General-purpose I/O with PPS remap |
| Pin 25 | RB4 — General-purpose I/O with PPS remap |
| Pin 26 | RB5 — General-purpose I/O with PPS remap |
| Pin 27 | RB6 — General-purpose I/O with PPS remap / ICDCLK |
| Pin 28 | RB7 — General-purpose I/O with PPS remap / ICDDATA |
| Pin 29 | VSS — Ground reference |
| Pin 30 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| Pin 31 | RD0 — General-purpose I/O with PPS remap |
| Pin 32 | RD1 — General-purpose I/O with PPS remap |
| Pin 33 | RD2 — General-purpose I/O with PPS remap |
| Pin 34 | RD3 — General-purpose I/O with PPS remap |
| Pin 35 | RD4 — General-purpose I/O with PPS remap |
| Pin 36 | RD5 — General-purpose I/O with PPS remap |
| Pin 37 | RD6 — General-purpose I/O with PPS remap |
| Pin 38 | RD7 — General-purpose I/O with PPS remap |
| Pin 39 | RE0 — General-purpose I/O with PPS remap |
| Pin 40 | RE1 — General-purpose I/O with PPS remap |
Typical Applications
PIC16LF18877-I/MV is suitable for 7 applications: Battery-Powered IoT Sensor Node, Consumer White Goods Control Board, HVAC Control Panel Interface, Industrial Sensor Hub and Modbus Gateway, Portable Medical Monitoring Accessory, Automotive Interior Accessory Module (Body Domain), Educational Development Board / Maker Platform.
Battery-Powered IoT Sensor Node
The PIC16LF18877-I/MV fits battery-powered IoT sensor nodes because of its XLP architecture with sub-uA sleep current and the 1.8 V to 3.6 V supply range that allows direct operation from a single-cell Li-ion or 2x AA battery. Its 32 MHz MIPS throughput is more than sufficient for periodic sensor sampling and BLE/Wi-Fi co-processor handshaking, while the 10-bit ADC2 with computation provides on-chip averaging of slow analog signals such as thermistor or battery voltage. The PPS feature lets engineers route the SPI/I2C interface to any available I/O pin, simplifying PCB layout in space-constrained sensor modules. Compared with a 32-bit MCU, this part offers years-long battery life at lower BOM cost.
Recommended
Consumer White Goods Control Board
The PIC16LF18877-I/MV is well-suited to white-goods control boards (washing machines, dishwashers, refrigerators) because it integrates EUSART, SPI, and I2C for sensor hubs and display modules while driving relays, triacs, and PWM outputs through its Core Independent Peripherals. The CWG peripheral can generate complementary gate-drive signals for small inverter sections used in BLDC pumps and fans, eliminating an external gate-driver IC in some designs. The 56 KB Flash supports application code plus a small bootloader for field firmware updates via UART. Industrial -40C to +85C operating temperature matches appliance environments without derating.
Recommended
HVAC Control Panel Interface
The PIC16LF18877-I/MV drives HVAC control panels requiring keypads, LCDs, and rotary encoders while communicating with the main thermostat MCU over UART. The PPS feature allows the SPI LCD interface, the I2C temperature sensor bus, and the UART to be remapped to any of the 36 available I/O pins, simplifying PCB layout under the display window. The 32 MHz CPU executes display refresh, debounce, and PID thermostat loops without timing strain, while the HLT (Hardware Limit Timer) CIP protects output stages from software faults. Its 256 B EEPROM stores user settings and calibration across power cycles, removing the need for external serial EEPROM.
Recommended
Industrial Sensor Hub and Modbus Gateway
The PIC16LF18877-I/MV acts as an industrial sensor hub collecting 4-20 mA loop signals via its 10-bit ADC2 and forwarding data over RS-485 Modbus via the EUSART with hardware address detection. The PPS flexibility lets engineers place the UART, RS-485 driver enable, and ADC channels on convenient PCB locations, while the CRC/SCAN peripheral adds a checksum-validated periodic ADC scan for fail-safe operation. With 56 KB Flash the device can host Modbus RTU plus application-specific calibration tables, and the hardware HLT timer enforces watchdog-style resets if the firmware fails to respond. Operating temperature of -40C to +85C is suitable for most indoor industrial panels.
Recommended
Portable Medical Monitoring Accessory
The PIC16LF18877-I/MV fits portable medical accessories such as pulse-oximeter probes, handheld spirometers, and pill-dispenser controllers thanks to its low 1.8 V minimum VDD, low sleep current, and built-in 10-bit ADC2 that captures analog photodiode or airflow signals. The Core Independent Peripherals (CRC/SCAN) provide deterministic signal acquisition without CPU overhead, and the EEPROM retains patient-specific calibration across battery swaps. While the part itself is not medical-grade certified, accessories that merely display or log data use it without FDA 510(k) clearance, accelerating time-to-market. The compact 5x5 mm UQFN package fits into small handheld enclosures.
Recommended
Automotive Interior Accessory Module (Body Domain)
The PIC16LF18877-I/MV serves as a non-safety automotive interior accessory controller such as a seat heater, mirror adjuster, or ambient lighting module where AEC-Q100 is not strictly required but extended temperature is helpful. Its -40C to +85C industrial operating range covers most cabin conditions, while the EUSART/SPI/I2C ports link to body-domain LIN transceivers and small OLED displays. The CWG peripheral drives MOSFET half-bridges for seat heater PWM, and the HLT CIP enforces maximum-heating-cycle safety timers without burdening the CPU. For AEC-Q100-qualified body modules, use the PIC16LF18877-E/MV extended-temperature sibling on the same 40-pin UQFN footprint.
Recommended
Educational Development Board / Maker Platform
The PIC16LF18877-I/MV is a strong choice for educational microcontroller platforms because it combines the mature MPLAB X IDE toolchain with the XC8 compiler and Microchip's MPLAB Code Configurator (MCC) for graphical peripheral setup. Students can experiment with PPS, the Core Independent Peripherals, and XLP low-power modes on real silicon rather than a simplified dev board MCU. The 56 KB Flash supports mid-sized student projects (RTOS demos, sensor logger, line-follower robot), and the exposed-pad UQFN-40 package teaches reflow soldering skills at the 0.4 mm pitch level. Debug is via ICSP using a PICkit 4 or MPLAB SNAP.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18877-I/MV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF18877-E/MV | PIC16LF18876-I/MV | PIC16LF18875-I/MV | PIC16F18877-I/MV | PIC16LF1789-I/MV |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-pin UQFN (MV) 5x5 | 40-pin UQFN (MV) 5x5 - same | 40-pin UQFN (MV) 5x5 - same | 40-pin UQFN (MV) 5x5 - same | 40-pin UQFN (MV) 5x5 - same | 40-pin UQFN (MV) 5x5 - same |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Flash Memory | 56 KB | 56 KB | 32 KB (-43%) | 14 KB (-75%) | 56 KB | 28 KB (-50%) |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| VDD Range | 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 | 2.3 V to 5.5 V | 1.8 V to 3.6 V |
| Operating Temperature | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| PPS Support | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Largest Flash in the PIC16(L)F1887X UQFN-40 family (vs PIC16LF18876-I/MV)
- Industry-low 1.8 V minimum VDD for direct battery operation (vs PIC16F18877-I/MV)
- Modern Core Independent Peripheral (CIP) set (vs PIC16LF1789-I/MV)
Design Notes
The 40-pin UQFN (MV) package has a center exposed thermal pad that MUST be soldered to a copper ground pour with thermal vias for mechanical reliability and thermal dissipation. Place 100 nF + 1 uF decoupling capacitors within 3 mm of each VDD/VSS pin pair. Route the ICSP programming pins (ICSPCLK on RA1, ICSPDAT on RA0) with direct traces to a 2x3 or 1x6 header for production flashing; do not place series resistors or ESD diodes in series with these lines without buffer consideration.
For battery-powered designs, use the XLP sleep modes with the 31 kHz LFINTOSC and disable unused peripherals via the PMD (Peripheral Module Disable) registers to achieve sub-uA quiescent current. The 1.8 V minimum VDD allows direct connection to a single Li-ion cell (3.0-4.2 V via LDO) or 2x AA alkaline cells (1.8-3.2 V direct). Estimated: with RTC + WDT active and ADC off, typical sleep current is <1 uA at 3.0 V per Microchip XLP datasheet. Add a bulk 10 uF + 100 nF cap near the battery terminals.
Do not exceed the absolute maximum VDD of 3.6 V on the LF variant - transient spikes from inductive loads or hot-plug events can permanently damage the MCU. Add a TVS diode or Zener clamp on VDD for automotive or industrial environments. Configure unused I/O pins as outputs low (not high-impedance inputs) to avoid floating-pin current leakage in low-power designs. Always clear the PPS lock bit before remapping peripherals and re-lock after configuration to prevent accidental pin re-mapping during reset.
Keep the HFINTOSC crystal traces short and surround the OSC1/OSC2 pins (when using an external crystal) with a ground guard ring to minimize EMI coupling into sensitive analog inputs. Separate analog AVdd/AVss pins (if present in the package variant) from digital VDD/VSS with a ferrite bead or pi-filter for ADC noise performance. Route SPI and I2C traces with impedance-controlled lengths and keep them away from PWM outputs that could inject switching noise into the ADC2 sampling window.
Compliance Information
RoHS and REACH compliant per Microchip product page. The standard 'I' (industrial) grade is not AEC-Q100 qualified; for AEC-Q100 automotive applications select an AEC-Q100-qualified PIC16F equivalent or use the E-suffix extended-temperature variant on the same 40-pin UQFN footprint.
