PIC16LF1782-I/MV - 3.5KB Flash 8-bit MCU | Microchip XLP 28-UQFN
MPN: PIC16LF1782-I/MV ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.27 | $227.00 |
| 500 | $2.04 | $1,020.00 |
| 1,000 | $1.82 | $1,820.00 |
PIC16LF1782-I/MV Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, and peripherals such as ADC, timers, and communication interfaces. PIC microcontrollers use a RISC-based Harvard architecture with separate program and data buses, providing deterministic instruction execution. The PIC16LF1782 family belongs to Microchip's mid-range enhanced core, bridging the PIC10/12/14 baseline line and the PIC18 high-performance line, and is widely used in consumer, industrial, and IoT edge-node applications.
Key features include a 12-bit ADC with up to 11 channels, an 8-bit DAC, three op-amps, two comparators, two 10-bit PWM modules, a Programmable Switch Mode Controller (PSMC), and communication peripherals such as EUSART, I2C/SPI, and CCP. The nanoWatt XLP technology delivers typical sleep currents below 50 nA, making the part suitable for energy-harvesting and battery-powered sensor nodes. The 28-UQFN package is one of the smallest in the PIC16 mid-range portfolio, enabling dense PCB layouts.
The device operates from 1.8V to 3.6V (LF variant), supports industrial temperature ranges (-40C to +85C), and integrates a wide array of capacitive-touch-ready I/O and mTouch peripherals. Designers benefit from MPLAB X IDE support, XC8 compiler compatibility, and a documented pin/code compatibility roadmap that simplifies migration across the PIC16LF178x family.
Typical applications include portable medical monitors, IoT sensor hubs, smart-home control panels, low-power wireless sensor nodes, and battery-backed industrial instruments. When designing with this MCU, ensure the exposed pad (EP) is soldered to a sufficiently large copper pour to meet thermal and electrical grounding requirements, and follow Microchip's in-circuit programming (ICSP) layout guidelines to retain field-update capability.
Drop-in alternatives for PIC16LF1782-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 PIC16LF1782-I/MV (same form factor and footprint) — differing in Package, Data EEPROM, Data SRAM, Program Memory (Flash), Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1782T-I/MV
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16LF1782-E/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1782-I/MV
✅ Drop-In✓ In Stock
$1.18 / Unit
View Datasheet →PIC16F18856-I/MV
✅ Drop-In✓ In Stock
$1.83 / Unit
View Datasheet →PIC16LF15355-I/MV
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16LF15354-I/MV
✅ Drop-In✓ In Stock
$0.89 / Unit
View Datasheet →PIC16LF1782-I/MV Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 Enhanced Mid-Range 8-bit RISC |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| Data SRAM | 256 B |
| Data EEPROM | 256 B |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 1.8 V to 3.6 V |
| ADC | 12-bit, up to 11 channels |
| DAC | 8-bit, 1 channel |
| Op-Amps | 3 on-chip |
| Comparators | 2 |
| PWM | 2 x 10-bit |
| Communication | EUSART, I2C/SPI, CCP |
| PSMC | Programmable Switch Mode Controller |
| I/O Pins | 24 |
| Package | 28-pin UQFN (4x4 mm) with EP |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Low-Power Technology | nanoWatt XLP |
| RoHS Status | Compliant |
PIC16LF1782-I/MV Pin Configuration
| Pin 1 | RA5 — I/O port A bit 5 / ICD |
| Pin 2 | RA4 — I/O port A bit 4 |
| Pin 3 | RA3 — I/O port A bit 3 |
| Pin 4 | RC5 — I/O port C bit 5 |
| Pin 5 | RC4 — I/O port C bit 4 |
| Pin 6 | RC3 — I/O port C bit 3 |
| Pin 7 | RC2 — I/O port C bit 2 |
| Pin 8 | RC1 — I/O port C bit 1 |
| Pin 9 | RC0 — I/O port C bit 0 |
| Pin 10 | VSS — Ground reference |
| Pin 11 | RA2 — I/O port A bit 2 |
| Pin 12 | RA1 — I/O port A bit 1 / ICPCK |
| Pin 13 | RA0 — I/O port A bit 0 / ICPDA |
| Pin 14 | VDD — Positive supply voltage (1.8-3.6V) |
| Pin 15 | RB7 — I/O port B bit 7 |
| Pin 16 | RB6 — I/O port B bit 6 / PGC |
| Pin 17 | RB5 — I/O port B bit 5 / PGD |
| Pin 18 | RB4 — I/O port B bit 4 |
| Pin 19 | RB3 — I/O port B bit 3 |
| Pin 20 | RB2 — I/O port B bit 2 |
| Pin 21 | RB1 — I/O port B bit 1 |
| Pin 22 | RB0 — I/O port B bit 0 |
| Pin 23 | RC7 — I/O port C bit 7 |
| Pin 24 | RC6 — I/O port C bit 6 |
| Pin 25 | RE3 — I/O port E bit 3 / MCLR |
| Pin 26 | RA7 — I/O port A bit 7 / OSC1 |
| Pin 27 | RA6 — I/O port A bit 6 / OSC2 |
| Pin 28 | EP — Exposed thermal pad (must be soldered to ground pour) |
Typical Applications
PIC16LF1782-I/MV is suitable for 6 applications: Portable Medical Monitoring Device, IoT Sensor Hub Node, Smart Home Control Panel, Low-Power Wireless Sensor Node, Battery-Backed Industrial Instrument, Consumer Wearable Fitness Tracker.
Portable Medical Monitoring Device
The PIC16LF1782-I/MV fits portable medical monitors because its nanoWatt XLP technology holds sleep current below 50 nA, extending battery life on coin-cell or Li-ion packs. The 12-bit ADC delivers accurate readings from bio-sensors such as pulse oximeters and temperature probes, while the integrated op-amps condition transducer signals without external amplifiers. With 3.5 KB Flash and 256B SRAM, the MCU runs lightweight RTOS-free firmware for heart-rate, SpO2, or glucose-monitor front-ends. The 28-UQFN 4x4 mm footprint enables wearable form factors where PCB area is at a premium. Engineers benefit from documented IEC 60730 class-B safety support and MPLAB X IDE code generation.
Recommended
IoT Sensor Hub Node
For battery-powered IoT sensor hubs, the PIC16LF1782-I/MV provides deep-sleep currents below 50 nA combined with a fast wake-up from interrupt, making it ideal for duty-cycled environmental sensors. Its three on-chip op-amps interface directly with thermistor bridges, photodiodes, and gas-sensor Wheatstone bridges without external signal conditioning. EUSART, I2C, and SPI peripherals connect to sub-GHz radios (RN2483) or BLE modules for edge-to-cloud telemetry. The 28-UQFN package allows the node to fit inside IP65 enclosures for outdoor deployments, and the 32 MHz core supports on-device pre-processing to reduce radio airtime.
Recommended
Smart Home Control Panel
The PIC16LF1782-I/MV drives smart-home control panels by leveraging its 24 GPIO and rich analog mix to interface capacitive touch buttons, LED indicators, and relay drivers. The 12-bit ADC reads ambient light and potentiometers for HVAC or lighting control, while the 8-bit DAC generates bias voltages for sensor calibration. mTouch capacitive-touch hardware eliminates mechanical buttons, improving panel longevity. With 1.8-3.6V operation, the MCU shares a rail with Wi-Fi/BLE modules without level shifters, and the 28-UQFN package keeps the PCB compact for wall-mount form factors.
Recommended
Low-Power Wireless Sensor Node
In low-power wireless sensor nodes, the PIC16LF1782-I/MV acts as a low-duty-cycle sensor aggregator for mesh networks such as 6LoWPAN or Thread. Its PSMC peripheral drives power-conversion stages for energy harvesting, while the comparator provides zero-crossing detection on AC-derived supplies. Sleep currents below 50 nA enable multi-year operation from a single CR2032 cell when paired with an external radio in deep sleep. The 28-UQFN 4x4 mm footprint fits inside sensor housings, and the 32 MHz core handles local data fusion before RF transmission.
Recommended
Battery-Backed Industrial Instrument
The PIC16LF1782-I/MV powers battery-backed industrial instruments that must operate through brownouts and voltage transients. Its 1.8-3.6V operating range tolerates Li-ion discharge curves, while internal EEPROM stores calibration data through power cycles. The 12-bit ADC and three op-amps handle 4-20 mA loop sensors, RTD conditioning, or strain-gauge amplification. EUSART plus RS-485 transceivers communicate with PLCs, and the 28-UQFN package withstands conformal coating for harsh environments. The industrial -40C to +85C temperature grade ensures reliable operation in factory automation panels.
Recommended
Consumer Wearable Fitness Tracker
The PIC16LF1782-I/MV enables consumer fitness trackers with its nanoWatt XLP technology for multi-day battery life, 12-bit ADC for heart-rate and step-counter analog front-ends, and on-chip op-amps for photoplethysmography (PPG) signal conditioning. Its 28-UQFN 4x4 mm footprint fits inside slim wristbands, and the integrated 8-bit DAC drives haptic-feedback drivers. With 32 MHz performance, the MCU runs light activity-recognition algorithms locally, and the rich peripheral set supports BLE modules over UART for phone-pairing workflows.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1782-I/MV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1782T-I/MV | PIC16LF1782-E/MV | PIC16F1782-I/MV | PIC16F18856-I/MV | PIC16LF15355-I/MV |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-UQFN (4x4 mm) | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same | 28-UQFN (4x4 mm) - same |
| Program Memory (Flash) | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 28 KB | 14 KB |
| Data SRAM | 256 B | 256 B | 256 B | 256 B | 2 KB | 1 KB |
| Operating Voltage | 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 | 2.3 V to 5.5 V | 1.8 V to 3.6 V |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| ADC | 12-bit, 11 ch | 12-bit, 11 ch | 12-bit, 11 ch | 12-bit, 11 ch | 12-bit, 24 ch | 10-bit, 22 ch |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C |
Key Differentiators
- Richest analog peripheral mix in the 28-pin PIC16LF family (vs PIC16LF15355-I/MV)
- Smallest form factor in the PIC16LF1782 family (vs PIC16LF1782-I/ML)
- NanoWatt XLP deep-sleep current under 50 nA (vs PIC16F1782-I/MV)
Design Notes
The 28-UQFN package has an exposed thermal pad (pin 28) that must be soldered to a continuous ground copper pour for both thermal dissipation and electrical reference. Per Microchip datasheet 41579B layout guidelines, use at least 16 thermal vias in the EP land pattern to the inner ground plane; missing vias will increase junction temperature and degrade ADC accuracy at high ambient temperatures.
Place a 0.1 uF decoupling capacitor as close as possible to the VDD pin (pin 14) with a short trace to the ground plane. Add a bulk 1 uF to 10 uF capacitor near the MCU to support nanoWatt XLP peak-load transitions when peripherals wake from sleep. Estimated: at 32 MHz active, the PIC16LF1782 draws up to ~2 mA from a 3.3 V supply, but wake-up transients require local bulk capacitance.
For ICSP programming and debugging via PGD/PGC (RB5/RB6), keep series resistors out of those signal paths. Per Microchip datasheet 41579B, isolate the ICSP lines from high-current switching traces to prevent programming errors. Reserve a 6-pin header footprint or edge-connector pads to enable field firmware updates without rework.
Do not exceed 3.6 V on VDD - the LF variant is not 5V tolerant and over-voltage damages the silicon. When migrating from PIC16F1782-I/MV to PIC16LF1782-I/MV, verify all peripherals operate below 3.6 V; the F variant's higher VDD range allows 5V interfaces that the LF variant does not. Confirm oscillator configuration bits in the configuration word match the chosen crystal or resonator.
Compliance Information
RoHS and REACH compliant per Microchip product page. Industrial temperature grade; AEC-Q100 qualification not specified - choose automotive-qualified PIC16LF1782 variants for vehicle applications.
