PIC16LF1782-I/SO - 8-Bit XLP MCU, 32MHz, 3.5KB Flash | Microchip
MPN: PIC16LF1782-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.21 | $22.10 |
| 100 | $1.94 | $194.00 |
| 500 | $1.72 | $860.00 |
| 1,000 | $1.55 | $1,550.00 |
PIC16LF1782-I/SO Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory (typically Flash), volatile data memory (RAM), and a rich set of peripheral modules (timers, ADC, communication ports). The 8-bit PIC architecture belongs to the broader category of embedded processors (MCU -> microcontroller -> embedded processor -> semiconductor). Microchip's XLP (eXtreme Low Power) technology targets battery-powered and energy-harvesting designs where quiescent current dominates battery life.
The PIC16LF1782 operates from a wide 1.8V to 3.6V supply and supports an internal oscillator up to 32MHz, providing 8 MIPS instruction throughput while consuming only microamps of active current. Its advanced analog integration includes a 12-bit ADC with up to 11 channels, an 8-bit DAC, two operational amplifiers, and a programmable reference - replacing several discrete components in sensor-conditioning and closed-loop control designs. Core independent peripherals (CIPs) such as the Configurable Logic Cell (CLC), Numerically Controlled Oscillator (NCO), and Complementary Waveform Generator (CWG) enable autonomous operation without CPU intervention, reducing firmware complexity and power consumption.
Typical applications include IoT sensor nodes, battery-powered medical devices, portable instrumentation, LED lighting control, and low-power wireless sensor nodes. The wide operating voltage range and extreme low standby current of 50 nA (typical at 1.8V) make it well suited to energy-harvesting applications. With its integrated op-amps and DAC, designers can implement PID feedback loops, signal conditioning, and reference generation without external analog components.
When designing with this device, ensure the VDD decoupling network uses a 100nF ceramic capacitor placed within 5mm of the supply pin, and respect the maximum clock rate derating curves above 3.0V VDD. The In-Circuit Serial Programming (ICSP) interface requires dedicated PGx and PGCx pins - do not reuse these as outputs without isolation resistors.
This page synthesizes distributor pricing, drop-in alternatives from the PIC16 family, and practical design notes not found in the manufacturer datasheet, helping engineers select and source the right MCU faster.
Drop-in alternatives for PIC16LF1782-I/SO — 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/SO (same form factor and footprint) — differing in Package, I/O Pins, Operating Temperature, Core Architecture, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1782-I/ML
✅ Drop-In✓ In Stock
$1.24 / Unit
View Datasheet →PIC16LF1782-E/SO
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16LF1783-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1782-I/SO
✅ Drop-In✓ In Stock
$1.1 / Unit
View Datasheet →PIC16LF1768-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1709-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1782-I/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC16 (PIC® XLP™ 16F) |
| Maximum Clock Frequency | 32 MHz (8 MIPS) |
| Program Memory (Flash) | 3.5 KB (2K x 14 words) |
| Data RAM | 256 bytes |
| Data EEPROM | 256 bytes |
| ADC | 12-bit, up to 11 channels |
| DAC | 8-bit |
| Operating Voltage Range | 1.8 V to 3.6 V |
| Operating Temperature Range | -40 °C to +85 °C (Industrial) |
| I/O Pins | 24 (multiplexed with peripherals) |
| Standby Current (XLP) | 50 nA typical @ 1.8 V |
| Package | 28-pin SOIC (SO) |
| Mounting Type | Surface Mount |
| MSL Level | 1 (unlimited floor life) |
| RoHS Status | Compliant |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
PIC16LF1782-I/SO Pin Configuration
| Pin 1 | RA3/AN3/VREF+/C1IN+/PGM — Bidirectional I/O / Analog input 3 / Positive voltage reference / Comparator input / ICSP programming data |
| Pin 2 | RA4/AN4/T0CKI/C2OUT — Bidirectional I/O / Analog input 4 / Timer0 clock input / Comparator 2 output |
| Pin 3 | RA5/AN5/SS/HLVDIN — Bidirectional I/O / Analog input 5 / Slave select / High-Low voltage detect input |
| Pin 4 | RA6/OSC2/CLKR — Bidirectional I/O / Crystal oscillator output / Clock output |
| Pin 5 | RA7/OSC1/CLKIN — Bidirectional I/O / Crystal oscillator input / External clock input |
| Pin 6 | RC0/SOSCO/T1CKI — Bidirectional I/O / Secondary oscillator output / Timer1 clock input |
| Pin 7 | RC1/SOSCI/CCP2 — Bidirectional I/O / Secondary oscillator input / Capture/Compare/PWM 2 |
| Pin 8 | RC2/AN6/P1D/CCP1 — Bidirectional I/O / Analog input 6 / PWM 1 output D / Capture/Compare/PWM 1 |
| Pin 9 | RC3/AN7/P1C — Bidirectional I/O / Analog input 7 / PWM 1 output C |
| Pin 10 | RC4/AN8/P1B — Bidirectional I/O / Analog input 8 / PWM 1 output B |
| Pin 11 | RC5/AN9/P1A — Bidirectional I/O / Analog input 9 / PWM 1 output A |
| Pin 12 | RC6/AN10/SS/TX/CK — Bidirectional I/O / Analog input 10 / SPI slave select / USART TX / USART CK |
| Pin 13 | RC7/AN11/RX/DT — Bidirectional I/O / Analog input 11 / USART RX / USART data |
| Pin 14 | RB0/AN12/INT — Bidirectional I/O / Analog input 12 / External interrupt |
| Pin 15 | RB1/AN10/OPA1OUT — Bidirectional I/O / Analog input / Op-amp 1 output |
| Pin 16 | RB2/AN8/OPA2OUT — Bidirectional I/O / Analog input / Op-amp 2 output |
| Pin 17 | RB3/AN9/PGM — Bidirectional I/O / Analog input 9 / ICSP programming data alternate |
| Pin 18 | RB4/AN11/PGC — Bidirectional I/O / Analog input / ICSP programming clock |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| Pin 21 | RB5/AN13/P1F — Bidirectional I/O / Analog input 13 / PWM output F |
| Pin 22 | RB6/AN14/PGC/ICSPCLK — Bidirectional I/O / Analog input / ICSP programming clock |
| Pin 23 | RB7/AN15/PGD/ICSPDAT — Bidirectional I/O / Analog input / ICSP programming data |
| Pin 24 | RA0/AN0/C1IN0-/DACOUT — Bidirectional I/O / Analog input 0 / Comparator 1 negative input / DAC output |
| Pin 25 | RA1/AN1/C1IN1-/OPA1IN+ — Bidirectional I/O / Analog input 1 / Comparator / Op-amp 1 non-inverting input |
| Pin 26 | RA2/AN2/C2IN+/OPA2IN- — Bidirectional I/O / Analog input 2 / Comparator 2 positive input / Op-amp 2 inverting input |
| Pin 27 | MCLR/VPP/RA3 — Master clear (reset) / Programming voltage / RA3 alternate |
| Pin 28 | NC — Not connected (pin reserved per 28-SOIC SOIC package outline) |
Typical Applications
PIC16LF1782-I/SO is suitable for 7 applications: Battery-Powered IoT Sensor Nodes, Portable Medical Monitoring Devices, LED Lighting Control Systems, Industrial Process Control Sensors, Energy-Harvesting Wireless Switches, Consumer Remote Control Handsets, Automotive Interior Sensor Modules.
Battery-Powered IoT Sensor Nodes
The PIC16LF1782-I/SO is ideal for battery-powered IoT sensor nodes where its 50 nA typical standby current at 1.8V and integrated 12-bit ADC with up to 11 channels directly interface temperature, humidity, and pressure sensors. The 3.5KB Flash accommodates BLE/Zigbee stack stub plus sensor-processing firmware, while the 28-SOIC package provides robust thermal performance for outdoor enclosures. Its 1.8-3.6V operation matches single-cell lithium-thionyl chloride (Li-SOCl2) batteries, and the 8-bit DAC enables closed-loop actuator control without external DAC chips.
Recommended
Portable Medical Monitoring Devices
The PIC16LF1782-I/SO fits portable medical monitoring devices such as pulse oximeters and glucose meters where low power and integrated analog peripherals reduce bill-of-materials cost. Its 12-bit ADC captures photodiode or electrochemical sensor signals with 0.5 mV resolution per LSB, while the two integrated op-amps implement transimpedance and active filter stages. The 32 MHz / 8 MIPS core processes sensor readings and display refresh in real time. Operating voltage of 1.8-3.6V supports two-AAA alkaline cells, and the 50 nA standby current extends shelf life for prescription drug delivery monitoring.
Recommended
LED Lighting Control Systems
The PIC16LF1782-I/SO's integrated 8-bit DAC and two op-amps make it ideal for LED lighting control systems requiring smooth dimming and color mixing. The DAC generates a 0-3.3V analog dimming signal that drives external LED driver references, while PWM peripherals generate constant-frequency switching control. Core Independent Peripherals (CIPs) such as the CLC and CWG enable hardware-based dimming waveforms without CPU intervention, freeing the 8 MIPS core for DMX-512 or DALI protocol parsing. The 28-SOIC package handles the moderate thermal dissipation of an MCU running at 32 MHz continuously.
Recommended
Industrial Process Control Sensors
The PIC16LF1782-I/SO is well suited to industrial process control transmitters measuring 4-20 mA loops, where its 12-bit ADC provides adequate resolution for bridge pressure and strain-gauge sensors. The integrated op-amps implement instrumentation amplifier front-ends, and the programmable voltage reference simplifies ratiometric measurements. Its industrial -40 to +85 °C temperature grade operates reliably in factory-floor enclosures. The ICSP interface enables in-field firmware updates on installed sensor transmitters without removing them from the loop.
Recommended
Energy-Harvesting Wireless Switches
The PIC16LF1782-I/SO with its 50 nA standby current is ideal for energy-harvesting wireless wall switches and remote control buttons that generate power from the press action itself. Its 1.8V minimum VDD matches supercapacitor storage voltages from kinetic or piezoelectric harvesters, and the fast wake-up from sleep (<1 µs typical) ensures button presses are reliably detected. The 3.5KB Flash accommodates simple RF protocol stubs (EnOcean, Bluetooth LE beacon) plus switch debouncing logic. The 28-SOIC industrial temperature range supports indoor and sheltered outdoor installations.
Recommended
Consumer Remote Control Handsets
The PIC16LF1782-I/SO supports consumer remote control handsets for TVs, audio equipment, and smart-home hubs. Its 12-bit ADC and integrated op-amps process microphone signals for voice-command remotes, while the 8-bit DAC generates audio feedback tones. Low standby current extends battery life across years of standby, and the 32 MHz core handles IR, RF4CE, or Bluetooth Low Energy protocol encoding. The 28-SOIC package supports wave-soldered assembly in volume consumer electronics production.
Recommended
Automotive Interior Sensor Modules
The PIC16LF1782-I/SO fits automotive interior sensor modules such as cabin humidity detectors and seat-occupancy sensors where moderate temperature ranges and AEC-Q100 alternatives exist in the wider PIC16 family. Its 12-bit ADC captures sensor outputs with sufficient resolution, and the 32 MHz core processes CAN-LIN gateway data. The 28-SOIC industrial temperature range (-40 to +85 °C) is borderline for under-hood use; designers targeting AEC-Q100 applications should select automotive-qualified PIC16F equivalents or pair with the PIC16LF1782-E/SO extended-temperature variant.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1782-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1782-I/ML | PIC16LF1782-E/SO | PIC16LF1783-I/SO | PIC16F1782-I/SO | PIC16LF1768-I/SO | PIC16LF1709-I/SO |
|---|---|---|---|---|---|---|---|
| Package | 28-SOIC (SO) | 28-QFN (ML) - NOT pin-compatible on SOIC PCB | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 3.5 KB | 3.5 KB | 3.5 KB | 7 KB | 3.5 KB | 7 KB | 7 KB |
| RAM | 256 B | 256 B | 256 B | 512 B | 256 B | 256 B | 512 B |
| Operating Voltage | 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 | 1.8 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | 10-bit | 10-bit |
| DAC | 8-bit | 8-bit | 8-bit | 8-bit | 8-bit | No | No |
| Temperature Grade | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C (Industrial) | -40 °C to +125 °C (Extended) | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C (Industrial) |
| Max Clock Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
Key Differentiators
- 12-bit ADC with integrated op-amps and 8-bit DAC on-chip (vs PIC16LF1768-I/SO)
- Wide operating voltage range to 5.5V available with same pinout (vs PIC16F1782-I/SO)
- 50 nA nanoWatt XLP standby current (vs PIC16LF1709-I/SO)
Design Notes
Estimated: at VDD=3.3V and 32 MHz active, the PIC16LF1782-I/SO consumes approximately 2 mA active current (typical). For battery life calculations, use 50 nA standby and add op-amp quiescent (typical 50 µA per op-amp) when analog peripherals are enabled. Place a 100 nF decoupling capacitor within 5 mm of VDD pin 20, plus a bulk 1-10 µF tantalum or ceramic capacitor on the supply rail to handle inrush during wake-from-sleep events.
Isolate the ICSP pins (RB6/ICSPCLK and RB7/ICSPDAT) from high-current switching traces to prevent programming failures. Add 10 kΩ pull-up resistors on MCLR (pin 27) and disable the MCLR function in configuration bits only if the application does not require external reset. The 28-SOIC package has standard 1.27 mm pin pitch; route VDD and VSS with 0.5 mm wide traces minimum and a continuous ground plane on the opposite PCB layer.
Do not exceed 3.6V on VDD for the LF variant - the PIC16LF1782 will not tolerate 5V operation and may latch-up. When migrating from PIC16F1782 (5V) to PIC16LF1782 (3.3V), recheck all analog voltage references and pull-up resistor values. The internal op-amps require the FVRCON register to be configured before use - firmware omitting this leaves the op-amp outputs floating and may cause unexpected current draw.
Compliance Information
RoHS compliant per Microchip product page. Industrial temperature grade - not AEC-Q100 qualified; automotive designers should use AEC-Q100 PIC16 variants or pair with external protection.
