PIC16LF18424-I/P - 8-Bit XLP MCU, 7KB Flash, 14-PDIP | Microchip
MPN: PIC16LF18424-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.62 | $1.62 |
| 10 | $1.49 | $14.90 |
| 100 | $1.31 | $131.00 |
| 500 | $1.14 | $570.00 |
| 1,000 | $1.02 | $1,020.00 |
PIC16LF18424-I/P Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile data memory, and on-chip peripherals. It sits at the heart of an embedded system, executing firmware that interacts with sensors, actuators, and communication buses. The PIC16 LF family belongs to the 8-bit microcontroller category, which trades raw clock speed for predictable instruction timing, low power draw, and deterministic interrupt response. Microchip's eXtreme Low Power (XLP) technology further positions these parts for battery-powered and energy-harvesting applications.
Key features include a 12-bit Analog-to-Digital Converter with Computation (ADC2), two 10-bit PWMs with complementary outputs, a 5-bit DAC, a comparator, a Complementary Waveform Generator (CWG), and configurable logic cells. Communication peripherals include EUSART, SPI, and I2C, all available on remappable pins. The device supports up to 12 I/O pins, three timers, and a wide operating temperature range of -40C to +85C for the industrial-grade variant.
Architecturally, the PIC16LF18424 uses a Harvard-style modified RISC core with a hardware stack and 49 single-word instructions, achieving near-1 MIPS/MHz efficiency. The ADC2 peripheral performs automated averaging, threshold comparison, and accumulation in hardware, offloading signal-conditioning routines from the CPU. Combined with Core Independent Peripherals (CIPs), these features let the chip handle complex timing and analog tasks while the CPU sleeps.
Typical applications include low-power sensor nodes, IoT edge devices, battery-powered instrumentation, LED lighting controllers, and consumer appliance interfaces. The 14-PDIP package suits breadboard prototyping, educational platforms, and through-hole production runs where rework or field replacement may be required.
When designing with this device, ensure decoupling capacitors (100 nF plus 1-10 uF bulk) are placed within a few millimeters of VDD, and that unused I/O pins are configured as outputs low or inputs with internal pull-ups to minimize sleep current. Migration to the SOIC-14 (PIC16LF18424-I/SL) or TSSOP-14 footprint is straightforward when transitioning from prototype to surface-mount production.
This page synthesizes distributor pricing, drop-in 14-PDIP alternatives, and practical design notes curated from the manufacturer datasheet and Microchip's CIP application notes - information that complements the datasheet without duplicating it.
Drop-in alternatives for PIC16LF18424-I/P — 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 PIC16LF18424-I/P (same form factor and footprint) — differing in ADC, Package, DAC, Data SRAM, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18424-I/P
✅ Drop-In✓ In Stock
$0.81 / Unit
View Datasheet →PIC16LF18424-E/P
✅ Drop-In✓ In Stock
$1.28 / Unit
View Datasheet →PIC16LF18324-I/P
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16LF1824-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1826-I/P
✅ Drop-In✓ In Stock
$1.38 / Unit
View Datasheet →PIC16LF18424-I/P Maximum Ratings & Electrical Characteristics
| Product Family | PIC16(L)F184xx |
| CPU Core | PIC16 8-bit enhanced mid-range |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data SRAM | 512 B |
| Data EEPROM | 256 B |
| Maximum CPU Speed | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Operating Temperature (I grade) | -40 C to +85 C |
| Package | 14-pin PDIP (through-hole) |
| I/O Pins | 12 |
| ADC | 12-bit ADC2 with Computation, up to 12 channels |
| DAC | 5-bit DAC |
| PWM | 2 x 10-bit PWM (complementary outputs) |
| Communication | EUSART, SPI, I2C (all on PPS) |
| Timers | 3 (Timer0, Timer1/3, Timer2/4/6) |
| Core Independent Peripherals | CWG, NCO, Configurable Logic Cells, CLC |
| RoHS Status | Compliant |
PIC16LF18424-I/P Pin Configuration
| Pin 1 | RA5/MCLR/VPP — Digital I/O / Master Clear reset (active-low) / programming voltage input |
| Pin 2 | RA0/ICDDAT — Digital I/O / ICSP data |
| Pin 3 | RA1/ICSPCLK — Digital I/O / ICSP clock |
| Pin 4 | RA2 — Digital I/O (PPS-capable) |
| Pin 5 | RA3 — Digital I/O (input only) |
| Pin 6 | RA4 — Digital I/O (PPS-capable) |
| Pin 7 | VDD — Positive supply (1.8 V to 3.6 V) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RB4 — Digital I/O (PPS-capable, interrupt-on-change) |
| Pin 10 | RB5 — Digital I/O (PPS-capable, interrupt-on-change) |
| Pin 11 | RB6/ADC10 — Digital I/O / analog input |
| Pin 12 | RB7/ADC11 — Digital I/O / analog input |
| Pin 13 | RA6/OSC2 — Digital I/O / crystal oscillator output |
| Pin 14 | RA7/OSC1 — Digital I/O / crystal oscillator input |
Typical Applications
PIC16LF18424-I/P is suitable for 6 applications: Battery-Powered Sensor Node, IoT Edge Controller with UART/SPI/I2C, LED Lighting Controller, Consumer Appliance Interface, Educational and Prototyping Platform, Industrial Monitoring and Control Module.
Battery-Powered Sensor Node
The PIC16LF18424-I/P is well-suited for battery-powered sensor nodes because its eXtreme Low Power (XLP) technology keeps deep-sleep current in the nanoamp range while the 12-bit ADC2 with Computation handles sensor reads autonomously. Operating from 1.8-3.6 V lets it run directly from a single CR2032 coin cell or 2xAA alkaline pack, eliminating boost regulators. The 7 KB Flash comfortably hosts state-machine firmware plus small protocol stacks (e.g., Modbus RTU slave) for HVAC, environmental, or asset-tracking sensors, and the CWG/NCO peripherals generate precise excitation waveforms for piezoelectric or resistive sensors without waking the CPU.
Recommended
IoT Edge Controller with UART/SPI/I2C
With EUSART, SPI, and I2C all on Peripheral Pin Select (PPS), the PIC16LF18424-I/P serves as a flexible edge controller bridging sensors to an upstream host MCU or wireless module (LoRa, BLE, Wi-Fi). The 32 MHz CPU delivers 8 MIPS, enough to run small protocol stacks and pre-process sensor data before forwarding, while the 12 ADC channels multiplex multiple analog inputs through one MCU. PPS remapping is especially valuable in the 14-PDIP footprint because it lets the engineer route SPI or I2C to non-adjacent pins, simplifying two-layer PCB layout.
Recommended
LED Lighting Controller
The PIC16LF18424-I/P integrates two 10-bit PWM channels with complementary outputs and a Complementary Waveform Generator (CWG), enabling flicker-free dimming of high-brightness LED strings, RGB strips, or small backlight panels. Hardware dead-band control from the CWG prevents shoot-through in half-bridge LED drivers, while the 32 MHz CPU provides deterministic 125 ns timing for color-mixing and thermal-foldback algorithms. The 1.8-3.6 V supply simplifies driver design when the LED string is powered from a separate 12-24 V bus regulated down by an MCP16323 or similar switcher.
Recommended
Consumer Appliance Interface
For washing machines, microwaves, coffee makers, and other white goods, the PIC16LF18424-I/P offers 12 I/O pins, robust ESD-rated interfaces, and a 14-PDIP package that simplifies through-hole production and field-replaceable control modules. The 12-bit ADC2 reads multiple potentiometers and thermistors for user-input and feedback, while the 5-bit DAC drives audio cues or reference voltages. Hardware comparators and the CWG let the MCU implement zero-cross detection and triac timing directly, eliminating external timer ICs and shrinking BOM cost.
Recommended
Educational and Prototyping Platform
The 14-PDIP through-hole package makes the PIC16LF18424-I/P ideal for breadboard-based learning, university embedded courses, and rapid prototyping. Students can swap chips between PIC16LF1824, PIC16LF18324, and PIC16LF18424 to observe incremental feature additions (CIPs, ADC2, XLP) without changing hardware. The free MPLAB X IDE, XC8 compiler, and MPLAB Code Configurator (MCC) graphical setup tool reduce onboarding time, while the robust 7 KB Flash accommodates full-featured firmware examples and lab exercises.
Recommended
Industrial Monitoring and Control Module
In industrial 4-20 mA loop-powered or 24 V PLC backplane systems, the PIC16LF18424-I/P operates as a low-cost data-acquisition front-end, thanks to its 12-bit ADC2 with Computation (hardware oversampling) and a wide -40 C to +85 C industrial temperature range. The EUSART supports RS-485 Modbus RTU via a transceiver like the ISL3179, while CLCs implement custom logic for safety interlocks without external gates. The CIP-driven architecture lets the CPU remain in sleep for most of the scan cycle, critical for heat-constrained enclosures.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF18424-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18424-I/P | PIC16LF18424-E/P | PIC16LF18324-I/P | PIC16LF1824-I/P | PIC16LF1826-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-PDIP | 14-PDIP (same) | 14-PDIP (same) | 14-PDIP (same) | 14-PDIP (same) | 14-PDIP (same) |
| Supply Voltage | 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 | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Flash Program Memory | 7 KB | 7 KB | 7 KB | 7 KB | 3.5 KB | 3.5 KB |
| Data SRAM | 512 B | 512 B | 512 B | 256 B | 128 B | 128 B |
| Data EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| ADC Resolution | 12-bit ADC2 with Computation | 12-bit ADC2 with Computation | 12-bit ADC2 with Computation | 10-bit ADC | 10-bit ADC | 10-bit ADC |
| Operating Temperature | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +125 C (E) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) |
| Core Independent Peripherals (CWG/NCO/CLC) | Yes (CWG + NCO + CLC) | Yes (CWG + NCO + CLC) | Yes (CWG + NCO + CLC) | Limited (no NCO/CLC) | No | No |
Key Differentiators
- Smaller supply range (1.8-3.6 V) optimized for low-power battery designs (vs PIC16F18424-I/P)
- Wider operating temperature for harsh environments (vs PIC16LF18424-I/P (this product))
- Larger Flash and richer Core Independent Peripherals than PIC16LF18324-I/P (vs PIC16LF18324-I/P)
Design Notes
Place a 0.1 uF ceramic decoupling capacitor within 5 mm of VDD (pin 1) and a 1-10 uF bulk capacitor on the same rail. Estimated: the LF18424 typically draws 1.8 mA active at 32 MHz and under 100 nA in deep sleep (per Microchip XLP datasheet curves), so the bulk cap must sustain VDD during sleep-wake cycles. For battery applications, use a 100 kOhm or larger MCLR pull-up to minimize leakage.
On 14-PDIP, route ICSP signals (ICSPDAT/ICSPCLK, pins 2/3) to a 2x3 0.1 inch header with VPP, VDD, VSS, and PGM on the remaining pads so a PICkit 4 or Snap programmer can attach in-circuit. Keep the ICSP traces short (<=50 mm) and avoid running them parallel to switching signals to minimize noise coupling during debug sessions.
Configure all unused I/O pins as outputs low (not inputs with pull-ups) to minimize sleep current, and disable unused peripherals in firmware using the PMD registers. Ensure the CONFIG words set the watchdog timer (WDT) and brown-out reset (BOR) appropriately - leaving WDT disabled on a prototype board may hide code lock-ups that emerge in production.
If using an external crystal on OSC1/OSC2 (pins 14/13), place the load capacitors within 5 mm of the IC pins and keep the crystal trace loop area under 10 mm squared. For HFINTOSC-only designs (32 MHz internal), leave OSC1/OSC2 as RA7/RA6 general-purpose I/O to gain two extra GPIO pins.
Compliance Information
RoHS and REACH compliant per Microchip product page; not AEC-Q100 qualified (use automotive-grade PIC16F version or visit Microchip automotive portfolio). Conflict-minerals statement available from Microchip corporate compliance.
