Microchip Technology PIC16LF18424-I/SL

Overview

PIC16LF18424-I/SL from Microchip Technology is a 14-pin, 8-bit XLP microcontroller with 4 KB Flash, 512 bytes SRAM, and 256 bytes EEPROM. It integrates a 12-bit ADC with computation (ADC2), 5-bit DAC, two comparators, two CWGs, four CLCs, one EUSART, one MSSP (I²C/SPI), and Peripheral Pin Select (PPS) in a SOIC-14 package. Designed for ultra-low-power sensor interface and motor control in battery-powered industrial monitoring systems.

For engineers reviewing the PIC16LF18424-I/SL datasheet, PIC16LF18424-I/SL pinout, PIC16LF18424-I/SL application, or PIC16LF18424-I/SL equivalent, key selection criteria include its 1.8–3.6 V operating range, 50 nA sleep current, PPS-enabled I/O flexibility, and integrated analog peripherals enabling single-chip signal conditioning without external op-amps or ADC drivers.

Technical Context

This device implements a RISC core with 48 instructions and supports up to 32 MHz operation via internal oscillator or external crystal. Its Core Independent Peripherals-including configurable logic cells (CLCs), complementary waveform generators (CWGs), and numerically controlled oscillators (NCO)-enable autonomous analog and timing functions without CPU intervention.

The architecture includes Memory Access Partitioning (MAP) for code/data write protection, Device Information Area (DIA) for factory-trimmed calibration data, and Power-on Reset (POR), Brown-out Reset (BOR), and Windowed Watchdog Timer (WWDT) for robust system reliability in unattended deployments.

Key Specifications

Pinout & Package

Package: 14-pin SOIC (Small Outline Integrated Circuit), 3.9 mm × 8.7 mm body, 1.27 mm pitch, RoHS-compliant, industrial temperature grade (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit ultra-low-power microcontroller applications.

Compared with PIC16LF18444-I/SL, the PIC16LF18424-I/SL offers identical analog/peripheral functionality in a smaller 14-pin package-ideal for space-constrained designs where 11 ADC channels suffice. Versus STM32L011F4P6, it delivers superior hardware-accelerated motor control and lower active power per analog function, but lacks 32-bit processing headroom.

Availability

PIC16LF18424-I/SL is available at Aetrix Electronics and suitable for battery-powered sensor nodes, compact motor drives, and industrial I/O modules requiring stable component supply and long-term manufacturability.

Supply support for PIC16LF18424-I/SL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology Inc. is a leading provider of microcontrollers, analog, FPGA, and connectivity solutions, headquartered in Chandler, Arizona, with ISO/TS 16949-certified manufacturing.

The PIC16(L)F184XX family targets cost-sensitive, ultra-low-power embedded applications-designed to replace discrete analog and timing circuits with integrated CIPs while maintaining 8-bit simplicity and XLP efficiency.

FAQ

What is the maximum operating frequency of the PIC16LF18424-I/SL?

The PIC16LF18424-I/SL supports up to 32 MHz operation using its internal HFINTOSC with 4× PLL or an external crystal up to 20 MHz. At 32 MHz, the instruction cycle is 125 ns. The device maintains full functionality across its 1.8–3.6 V supply range, with oscillator calibration ensuring ±2% accuracy at nominal conditions. This frequency capability enables real-time control loops with sub-microsecond response in motor and sensor applications using the PIC16LF18424-I/SL.

Does the PIC16LF18424-I/SL support in-circuit serial programming (ICSP)?

Yes, the PIC16LF18424-I/SL supports standard ICSP via RA0/ICSPDAT and RA1/ICSPCLK pins. These dual-function pins serve as general-purpose I/O during normal operation and automatically switch to programming mode when 13 V is applied to MCLR/VPP. No external programming circuitry is required-only a 10 kΩ pull-up on MCLR and proper VDD/VSS decoupling. The PIC16LF18424-I/SL is fully compatible with Microchip's PICkit™ 3/4 and MPLAB® ICD 4 debuggers.

How many analog input channels does the PIC16LF18424-I/SL support?

The PIC16LF18424-I/SL supports 11 external analog input channels (ANA0–ANA5, ANC0–ANC5) mapped across its 12 I/O pins. All channels connect to the 12-bit ADC2 module, which supports automated post-processing including averaging, oversampling, and threshold comparison. Channel selection is software-configurable, and conversions can occur during Sleep mode-enabling low-power wake-on-threshold operation. This channel count is confirmed in Table 1 of DS40001894B for the PIC16(L)F18424 variant, and applies directly to the PIC16LF18424-I/SL.

What communication interfaces are integrated into the PIC16LF18424-I/SL?

The PIC16LF18424-I/SL integrates one EUSART (supporting RS-232/RS-485/LIN with auto-baud detect) and one Master Synchronous Serial Port (MSSP) configurable as either I²C or SPI. Notably, MSSP2 is not available on this variant per DS40001894B-page 9 Note 5. Both interfaces support Peripheral Pin Select (PPS), allowing flexible remapping of TX/RX/SCK/SDA pins to optimize PCB layout. The EUSART also features auto-wake-up on Start bit detection-critical for low-power polling architectures using the PIC16LF18424-I/SL.

Is the PIC16LF18424-I/SL qualified for industrial temperature operation?

Yes, the PIC16LF18424-I/SL is rated for industrial temperature operation from –40°C to +85°C, as indicated by the "I" suffix in its part number. This qualification is supported by Microchip's characterization across voltage (1.8–3.6 V) and temperature extremes, including guaranteed 50 nA Sleep current and functional operation of all peripherals-including ADC2, CWG, and CLC-at full temperature range. The SOIC-14 package (SL suffix) meets JEDEC MS-012 standards and is suitable for reflow soldering in industrial assembly processes using the PIC16LF18424-I/SL.