PIC16F18424-I/P - 8-bit 32MHz 7KB Flash XLP MCU | Microchip
MPN: PIC16F18424-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.48 | $1.48 |
| 10 | $1.34 | $13.40 |
| 100 | $1.12 | $112.00 |
| 500 | $0.94 | $470.00 |
| 1,000 | $0.81 | $810.00 |
PIC16F18424-I/P Overview
An 8-bit microcontroller is a small computing system on a single IC that combines a CPU, non-volatile program memory (Flash), volatile working memory (RAM), and a configurable set of peripheral interfaces. PIC16F18424-I/P belongs to the PIC16F184xx family, sitting inside the broader 8-bit PIC microcontroller hierarchy, which in turn falls under the wider taxonomy of microcontrollers (MCU) and embedded processors. Its 14-bit instruction word architecture provides deterministic execution, while the ADCC and Core Independent Peripherals (CIPs) handle sensor and signal-conditioning tasks without CPU intervention.
Key features include active current consumption in the microamp range with XLP sleep modes down to sub-1µA typical, four direct-drive LED PWM outputs, and an integrated temperature indicator. The 14-pin PDIP package offers easy through-hole prototyping, breadboarding, and educational use, while the same die is also available in 14-pin SOIC, 16-pin QFN, and 20-pin variants for production. The ADCC supports automated averaging, threshold comparison, and burst accumulation for low-noise sensor reads.
The PIC16F18424-I/P is supported by Microchip's MPLAB X IDE, the XC8 C compiler, and the MPLAB Code Configurator (MCC) which generates peripheral initialization code and pin manager diagrams. Functional Safety (FuSa) documentation, IEC 60730 class B software libraries, and a documented baseline of safety-relevant peripherals make this part suitable for safety-critical consumer and appliance applications.
Typical applications include battery-powered IoT sensor nodes, white goods and appliance user interfaces, LED lighting control, low-cost consumer electronics, and general-purpose replacement of legacy PIC16F and PIC16LF designs. The wide 1.8V to 5.5V supply range supports both lithium battery and 5V regulated rails.
When designing with this MCU, reserve adequate decoupling on VDD/AVDD/VBAT (a 0.1µF ceramic adjacent to each pin) and configure unused I/O as outputs to minimize sleep current. The ICSP/ICD pins (RB6, RB7) require series resistors or careful trace layout if they are also used as general I/O.
This page synthesizes distributor pricing as of 2026-09-20, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone. Sources include Microchip's product page, DigiKey, Mouser, and Octopart.
Drop-in alternatives for PIC16F18424-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 PIC16F18424-I/P (same form factor and footprint) — differing in ADC, Package, Comparators, Data EEPROM, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F18425-I/P
✅ Drop-In✓ In Stock
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View Datasheet →PIC16F18426-I/P
✅ Drop-In✓ In Stock
$1.18 / Unit
View Datasheet →PIC16F18324-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1824-I/P
✅ Drop-In✓ In Stock
$1.48 / Unit
View Datasheet →PIC16F1825-I/P
✅ Drop-In✓ In Stock
$1.23 / Unit
View Datasheet →PIC16F15324-I/P
✅ Drop-In✓ In Stock
$0.58 / Unit
View Datasheet →PIC16F1454-I/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F18424-I/P Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC16, 14-bit instruction word |
| Maximum Clock Frequency | 32 MHz |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data SRAM | 512 bytes |
| Data EEPROM | 128 bytes |
| Supply Voltage Range | 1.8 V to 5.5 V |
| I/O Pins | 11 (for 14-pin PDIP variant) |
| ADC | 12-bit ADCC, up to 17 channels |
| DAC | 5-bit, 1 channel |
| PWM | 2 x 10-bit PWM (4 output channels) |
| Comparators | Yes, with selectable hysteresis |
| Communication | EUSART, SPI, I2C |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Package | 14-pin PDIP (through-hole) |
| Mounting Type | Through-Hole |
| MSL Level | 1 (unlimited) |
| RoHS Status | Compliant |
| Low-Power Technology | XLP - eXtreme Low Power |
| Functional Safety | FuSa-classified, IEC 60730 Class B support |
PIC16F18424-I/P Pin Configuration
| Pin 1 | RA3/MCLR/VPP — Digital I/O / Master Clear (reset) / Programming voltage |
| Pin 2 | RC5 — Digital I/O (PORTC bit 5) |
| Pin 3 | RC4 — Digital I/O (PORTC bit 4) |
| Pin 4 | RC3 — Digital I/O (PORTC bit 3) |
| Pin 5 | RC2 — Digital I/O (PORTC bit 2) |
| Pin 6 | RC1 — Digital I/O (PORTC bit 1) |
| Pin 7 | RC0 — Digital I/O (PORTC bit 0) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RA0 — Digital I/O / analog input (PORTA bit 0) |
| Pin 10 | RA1 — Digital I/O / analog input (PORTA bit 1) |
| Pin 11 | RA2 — Digital I/O / analog input (PORTA bit 2) |
| Pin 12 | RA4 — Digital I/O / analog input (PORTA bit 4) |
| Pin 13 | RA5 — Digital I/O / analog input (PORTA bit 5) |
| Pin 14 | VDD — Positive supply voltage (1.8V to 5.5V) |
Typical Applications
PIC16F18424-I/P is suitable for 7 applications: Battery-Powered IoT Sensor Node, White Goods and Appliance User Interface, LED Lighting Control and Dimming, Consumer Remote Control and IR Transmitter, Industrial Sensor Transmitter, Automotive Body Electronics (Non-Safety), Educational and Hobbyist Development Platform.
Battery-Powered IoT Sensor Node
The PIC16F18424-I/P is ideal for battery-powered IoT sensor nodes because of its sub-1µA XLP sleep current and integrated 12-bit ADCC with Computation, which lets the CPU stay in deep sleep while the ADC performs automated averaging and threshold detection. The 7KB Flash holds a full sensor driver stack including calibration tables and wireless-protocol glue code for sub-GHz transceivers via EUSART/SPI. With 32MHz operation and 8 MIPS throughput, the part handles periodic sensor reads, AES-128 packet encryption, and transmit coordination without compromising battery life. Designers get 1.8V-5.5V supply flexibility supporting lithium coin cells, 2xAA alkalines, and 3.3V regulated rails without a separate LDO.
Recommended
White Goods and Appliance User Interface
The PIC16F18424-I/P serves as the user-interface controller in washing machines, dishwashers, and microwave ovens thanks to its 11 I/O pins capable of driving 7-segment displays, keypads, encoder wheels, and LED status indicators through the integrated CWG and PWM modules. Functional Safety (FuSa) classification and IEC 60730 Class B software library support allow designers to meet household-appliance safety standards without a separate safety MCU. The 32MHz core debounces inputs and drives PWM-controlled buzzers, while the 12-bit ADCC reads water-level sensors or thermistor inputs with hardware averaging. Wide 1.8V-5.5V supply tolerance handles noisy rectified mains rails with simple capacitive filtering.
Recommended
LED Lighting Control and Dimming
The PIC16F18424-I/P is well suited for constant-current LED drivers and architectural dimming controllers thanks to its four 10-bit PWM outputs, CWG (Complementary Waveform Generator) for synchronous buck/boost FET drive, and 5-bit DAC for analog dimming reference. The 32MHz core executes control loops while the 12-bit ADCC monitors LED current through a sense resistor with hardware averaging for flicker-free dimming down to 0.1%. Wide supply range accepts 24V LED bus rails directly. Designers can implement DALI, 0-10V analog dimming, or DMX-512 receive protocols using the integrated EUSART and the same MCU without external drivers.
Recommended
Consumer Remote Control and IR Transmitter
The PIC16F18424-I/P is a strong fit for handheld remote controls thanks to its XLP sleep current under 1µA extending coin-cell battery life to 5+ years, integrated EUSART for IR modulation, and 7KB Flash holding multiple protocol stacks (RC5, NEC, SIRC, proprietary). The 14-pin PDIP footprint enables easy through-hole prototyping for low-volume remote designs and educational kits. The 12-bit ADCC supports capacitive-touch buttons via the integrated comparators, eliminating mechanical keys. The wide 1.8V-3.6V operating range suits CR2032 and AAA battery chemistries directly without boost converters.
Recommended
Industrial Sensor Transmitter
The PIC16F18424-I/P operates in industrial 4-20mA loop-powered sensor transmitters where its 1.8V-5.5V supply range and sub-1µA sleep current maximize operating life on energy-harvested or loop-powered rails. The 12-bit ADCC with hardware averaging provides clean measurements from bridge pressure sensors, RTDs, and thermocouples through the integrated comparators. The industrial -40C to +85C temperature range supports factory-floor deployments. EUSART and I2C enable HART modem communication or digital output protocols. The Functional Safety classification simplifies IEC 61508 SIL-1 path documentation.
Recommended
Automotive Body Electronics (Non-Safety)
The PIC16F18424-I/P serves as a low-cost body-comfort controller for seat heaters, mirror adjusters, ambient lighting, and accessory modules where its 32MHz performance and 11 I/O pins drive multiple MOSFETs via CWG and PWM. Operating voltage tolerance handles 12V automotive rails when paired with a simple LDO. The -40C to +125C extended variants are available as PIC16F18424-E/P. While not AEC-Q100 qualified itself, the family is widely used in non-safety automotive subsystems. The 12-bit ADCC reads potentiometer positions for mirror and seat memory functions.
Recommended
Educational and Hobbyist Development Platform
The PIC16F18424-I/P in 14-pin PDIP is ideal for educational kits, hobby projects, and university microcontroller courses thanks to its through-hole pins that fit breadboards and IC sockets without soldering rework. The 7KB Flash accommodates substantial C exercises while the peripheral mix (ADC, PWM, EUSART, I2C, SPI) covers a complete syllabus from GPIO to communications. Microchip's free MPLAB X IDE, XC8 compiler, and PICkit 4 debugger support enable a zero-cost development path. The Curiosity development board family includes PIC16F18424 target boards pre-loaded with demo firmware.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F18424-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F18425-I/P | PIC16F18426-I/P | PIC16F18324-I/P | PIC16F1824-I/P | PIC16F15324-I/P |
|---|---|---|---|---|---|---|
| Package | 14-pin PDIP | 14-pin PDIP - same | 14-pin PDIP - same | 14-pin PDIP - same | 14-pin PDIP - same | 14-pin PDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 7 KB | 14 KB | 14 KB | 7 KB | 7 KB | 7 KB |
| SRAM | 512 B | 512 B | 1 KB | 512 B | 256 B | 1 KB |
| Maximum Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| ADC Resolution | 12-bit ADCC | 12-bit ADCC | 12-bit ADCC | 10-bit | 10-bit | 10-bit |
| ADC Channels | 17 | 17 | 17 | 17 | 12 | 12 |
| CWG (Complementary WG) | Yes | Yes | Yes | No | No | No |
| EEPROM | 128 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Supply Voltage | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Functional Safety (FuSa) | Yes (IEC 60730) | Yes (IEC 60730) | Yes (IEC 60730) | No | No | No |
Key Differentiators
- 12-bit ADCC with Computation vs 10-bit ADC on older PIC16F1xxx (vs PIC16F18324-I/P)
- FuSa/IEC 60730 Class B support for safety-critical consumer appliances (vs PIC16F1824-I/P)
- Complementary Waveform Generator (CWG) for half-bridge FET drive (vs PIC16F15324-I/P)
Design Notes
Place a 0.1µF ceramic decoupling capacitor within 3mm of VDD (pin 14) and a 10µF bulk capacitor near the MCU supply entry point. For ADC applications, add a separate 0.1µF + 10µF filter network on AVDD if used, to achieve the datasheet's 12-bit ADC SNR. Estimated: at 32MHz the PIC16F18424 draws about 5mA active, so a 10µF bulk supports 100µs of full-speed operation without supply collapse. Enable the BOR (Brown-Out Reset) via configuration bits for predictable reset behavior on noisy rails.
Keep the 32MHz HFINTOSC clock trace short and surround the OSC pins with a ground pour. For crystal operation, place the load capacitors within 3mm of OSC1/OSC2. Route ICSP signals (RA4/RA5 as PGD/PGC or dedicated RB6/RB7 on larger variants) with 4mm clearance from switching nodes to prevent programming failures. The MCLR pin (pin 1) requires a 10kΩ pull-up and a 100nF cap to ground for noise immunity - do not leave it floating or the MCU may reset spuriously in noisy environments.
Do not connect the PIC16F18424-I/P directly to a 5V RS-232 driver - use a MAX232-class translator since the MCU I/O is 5.5V tolerant but RS-232 swings to ±12V. When migrating from PIC16F1824 firmware, the ADC initialization sequence differs between the older ADC2 and the new ADCC modules - check TB3129 application note before reusing existing code. The 14-pin PDIP variant shares pins with the ICSP interface, so dedicated debugger sockets must include isolation resistors on PGD/PGC if those pins are used for application I/O.
Compliance Information
RoHS and REACH compliant per Microchip product page. Industrial -40C to +85C operating range. Functional Safety (FuSa) classification with IEC 60730 Class B software library available on demand. Not AEC-Q100 qualified - for automotive safety applications use a Q100-qualified variant.
