PIC16LF1824-I/SL - 8-bit MCU, 7KB Flash, 32MHz, XLP | Microchip
MPN: PIC16LF1824-I/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.36 | $1.36 |
| 10 | $1.22 | $12.20 |
| 100 | $1.09 | $109.00 |
| 500 | $0.98 | $490.00 |
| 1,000 | $0.87 | $870.00 |
PIC16LF1824-I/SL Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, Flash program memory, RAM data memory, EEPROM, and integrated peripherals such as timers, ADC, comparators, communication interfaces (I2C/SPI/EUSART), and general-purpose I/O. The PIC16LF1824 belongs to the enhanced mid-range PIC16 family using Microchip's RISC architecture, executing instructions in 200ns at 20MHz, making it a popular low-power and low-cost choice for embedded control applications.
Key features include the proprietary XLP (eXtreme Low Power) technology with sub-uA sleep currents, an integrated temperature indicator, mTouch capacitive sensing peripherals, multiple communication interfaces (EUSART, MSSP for I2C/SPI), a 10-bit ADC with computation, and 18 I/O pins multiplexed across the 14-pin SOIC footprint. The internal 32MHz oscillator eliminates the need for an external crystal in many designs.
Architecturally, the PIC16LF1824 uses a 14-bit instruction word RISC core with a hardware stack, single-cycle instructions at 32MHz, and an instruction set optimized for compact code generation. The nanoWatt XLP technology provides multiple low-power modes (DOZE, IDLE, SLEEP) with a typical sleep current below 50 nA with RTCC enabled, enabling multi-year battery life in sensor-based products.
Typical applications include battery-powered sensor nodes, consumer electronics, IoT edge devices, capacitive touch interfaces, low-cost motor control loops, and portable medical peripherals. The wide 1.8V-3.6V operating range also supports direct coin-cell and 2xAA operation.
When designing with this part, consider using MPLAB X IDE with XC8 compiler and the PICkit programmer for development. Decoupling capacitors (100nF + 10uF) close to VDD are essential for ADC accuracy, and unused I/O pins should be configured as outputs low to minimize current leakage in sleep mode.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16LF1824-I/SL — 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 PIC16LF1824-I/SL (same form factor and footprint) — differing in Package, ADC, Timers, Operating Temperature, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1824-I/ST
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.17 / Unit
View Datasheet →PIC16LF1824T-I/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1824-I/SL
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16LF1824T-E/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1824-E/SL
✅ Drop-In✓ In Stock
$1.59 / Unit
View Datasheet →PIC16LF1824-I/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 enhanced mid-range 8-bit RISC |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data RAM | 256 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz (internal oscillator) |
| Instruction Cycle Time | 200 ns at 20 MHz, 125 ns at 32 MHz |
| Operating Voltage (LF variant) | 1.8 V to 3.6 V |
| Supply Voltage (typical) | 2.5 V / 3.3 V |
| I/O Pins | 18 (multiplexed on 14-pin package) |
| ADC | 10-bit, up to 12 channels |
| Timers | 4 x 8-bit, 1 x 16-bit |
| Communication Interfaces | EUSART, MSSP (I2C/SPI) |
| Operating Temperature | -40C to +85C (industrial, 'I') |
| Package | 14-pin SOIC (SOIC-14, .150" body) |
| Mounting Type | Surface Mount |
| MSL Level | 1 (unlimited) |
| RoHS Status | Compliant (Pb-free) |
| Lead-Free | Yes |
PIC16LF1824-I/SL Pin Configuration
| Pin 1 | /MCLR/VPP — Master Clear (Reset) input or programming voltage |
| Pin 2 | RA0/AN0/CPS0 — GPIO/Analog input 0/Capacitive touch channel 0 |
| Pin 3 | RA1/AN1/CPS1 — GPIO/Analog input 1/Capacitive touch channel 1 |
| Pin 4 | RA2/AN2/CPS2 — GPIO/Analog input 2/Capacitive touch channel 2 |
| Pin 5 | RA3/AN3/CPS3 — GPIO/Analog input 3/Capacitive touch channel 3 |
| Pin 6 | RA4/AN4/CPS4/T0CKI — GPIO/Analog input 4/Capacitive touch channel 4/Timer0 clock input |
| Pin 7 | RA5/AN5/CPS5/SS — GPIO/Analog input 5/Capacitive touch channel 5/SPI slave select |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RA7/OSC1/CLKIN — GPIO/Crystal oscillator input/External clock input |
| Pin 10 | RA6/OSC2/CLKOUT — GPIO/Crystal oscillator output/Clock output |
| Pin 11 | RB4/AN10/CPS10 — GPIO/Analog input 10/Capacitive touch channel 10 |
| Pin 12 | RB5/AN11/CPS11 — GPIO/Analog input 11/Capacitive touch channel 11 |
| Pin 13 | RB6/ICSPCLK/ICDCLK — GPIO/In-circuit serial programming clock/In-circuit debugger clock |
| Pin 14 | RB7/ICSPDAT/ICDDAT — GPIO/In-circuit serial programming data/In-circuit debugger data |
Typical Applications
PIC16LF1824-I/SL is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Capacitive Touch User Interfaces, Portable Medical and Health Devices, Industrial Sensor Conditioning Loops, LED Lighting Control Drivers, Consumer Appliance Control Boards.
Battery-Powered IoT Sensor Nodes
The PIC16LF1824-I/SL fits battery-powered IoT sensor nodes thanks to its 1.8V-3.6V supply range and nanoWatt XLP technology delivering sub-50 nA sleep current with RTCC running. Its 10-bit ADC with computation (ADC2) handles sensor readings autonomously without waking the CPU, while the integrated 32MHz oscillator eliminates external crystal components. The 7KB Flash supports reasonable Zigbee/BLE coordinator logic and the 256B RAM handles small sensor data buffers. Compared to switching to a Cortex-M0+ part, this PIC16 keeps the bill of materials lower and the firmware toolchain simpler for ultra-low-power edge nodes.
Recommended
Capacitive Touch User Interfaces
The PIC16LF1824-I/SL is ideal for capacitive touch user interfaces through its integrated mTouch hardware peripheral supporting up to 18 touch channels. The mTouch module performs charge-time-measurement autonomously with minimal CPU intervention, allowing buttons, sliders, and proximity sensors to operate while the core sleeps. With 4 timers and EUSART, the MCU can also drive LED feedback and communicate touch events over UART to a host controller. Typical products include kitchen appliances, smart thermostats, and consumer white goods where sealed capacitive interfaces replace mechanical buttons.
Recommended
Portable Medical and Health Devices
The PIC16LF1824-I/SL serves portable medical peripherals such as glucose meters, pulse oximeters, and digital thermometers because of its low-power architecture and analog integration. The 1.8V-3.6V supply matches a single lithium coin cell or 2xAAA battery, while the 10-bit ADC and internal temperature indicator simplify sensor signal conditioning. The 7KB Flash holds BLE command stacks or proprietary RF protocols, and the EUSART interfaces with Bluetooth modules. Compared to an external op-amp circuit, the integrated ADC with computation reduces component count for FDA-compliant medical devices.
Recommended
Industrial Sensor Conditioning Loops
The PIC16LF1824-I/SL handles industrial 4-20mA sensor loops and bridge-sensor signal conditioning with its 10-bit ADC and 1.8V-3.6V operation. The industrial -40C to +85C temperature range supports factory-floor deployment, and the MSSP peripheral drives SPI ADC front-ends or I2C sensor clusters. Its nanoWatt XLP modes allow loop-powered designs where quiescent current must stay below 1mA. Compared to discrete op-amp conditioning circuits, this MCU adds digital calibration and Modbus RTU communication in a single 14-pin SOIC footprint.
Recommended
LED Lighting Control Drivers
The PIC16LF1824-I/SL drives low-power LED lighting controllers including dimmable bulbs, RGB strips, and signage using PWM outputs and the EUSART for DMX512 or DALI command reception. The 1.8V-3.6V range matches battery-powered or USB-powered fixtures, while 32MHz operation supports smooth 16-bit PWM dimming for flicker-free lighting. The mTouch peripheral enables capacitive touch dimmers, and the small 14-pin SOIC footprint fits inside GU10 bulbs and candle-style LED packages. Compared to discrete 555-timer PWM circuits, this MCU provides digital preset scenes and remote control integration.
Recommended
Consumer Appliance Control Boards
The PIC16LF1824-I/SL is well-suited for consumer appliance control boards in coffee machines, microwaves, washing machines, and air purifiers where its 7KB Flash, 18 I/O pins, and industrial temperature range handle user interface, motor timing, and sensor reading. The MSSP peripheral connects to I2C temperature sensors, the EUSART interfaces with inverter boards, and the timers generate PWM for fan or pump control. Compared to discrete logic ICs, this MCU simplifies BOM and enables feature upgrades via firmware changes without PCB redesign.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1824-I/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1824-I/ST | PIC16LF1824T-I/SL | PIC16F1824-I/SL | PIC16LF1824T-E/SL | PIC16LF1824-E/SL |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SOIC-14 | TSSOP-14 | SOIC-14 - same | SOIC-14 - same | SOIC-14 - same | SOIC-14 - same |
| Operating Voltage | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 5.5V (wider) | 1.8V to 3.6V | 1.8V to 3.6V |
| Temperature Range | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (extended) | -40C to +125C (extended) |
| Flash Memory | 7 KB | 7 KB | 7 KB | 7 KB | 7 KB | 7 KB |
| RAM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Pricing (qty 1, USD, as of 2026-09-24) | $1.36 | $1.42 | $1.36 | $1.58 | $1.78 | $1.65 |
Key Differentiators
- Low-voltage nanoWatt XLP core for battery applications (vs PIC16F1824-I/SL)
- Smaller SOIC-14 footprint than TSSOP variant for hand-soldering (vs PIC16LF1824-I/ST)
- Industrial temperature range suits most commercial applications (vs PIC16LF1824T-E/SL)
Design Notes
Estimated: At 3.3V supply with 32MHz active, the PIC16LF1824-I/SL draws approximately 4 mA. In sleep mode with RTCC running at 32 kHz, current drops to ~50 nA (nanoWatt XLP). Always place a 100 nF decoupling capacitor within 3 mm of VDD pin 14, plus a bulk 10 uF capacitor near the IC for ADC accuracy. For battery applications using coin cells, disable the BOR module and use the internal LFINTOSC for RTC to maximize runtime.
The SOIC-14 footprint requires standard 1.27mm (50 mil) SOIC land pads per IPC-7351. Route the ICSPDAT and ICSPCLK lines (RB7/RB6) as short and direct as possible to support reliable in-circuit programming and debugging with PICkit 3/4. Keep analog signals (AN0-AN5, AN10-AN11) separated from digital switching lines to minimize ADC noise coupling. The exposed pad is not present on this package, so no thermal via array is required.
Do not leave unused I/O pins floating - configure them as outputs driving low to minimize current leakage in sleep mode. The /MCLR pin must have a pull-up resistor (typically 10 kOhm) to VDD if external reset is used; if unused, tie to VDD directly. When using the internal oscillator at 32 MHz, ensure VDD is at least 2.5V to maintain accuracy; below 2.5V the oscillator frequency may drift. For capacitive touch designs, use guard rings around touch electrodes per Microchip TB3069 design guide.
Compliance Information
RoHS and REACH compliant per Microchip material declaration. Halogen-free per JEDEC JS709B. Not AEC-Q100 qualified - select -E grade variants for automotive high-temperature environments.
