Microchip Technology PIC16F18424T-I/ST

Overview

PIC16F18424T-I/ST from Microchip Technology is a 14-pin, 8-bit Flash microcontroller with eXtreme Low-Power (XLP) operation, 4096-word program memory, 512-byte SRAM, and integrated 12-bit ADC with computation (ADC2), 5-bit DAC, two CWG modules, four CLCs, and Peripheral Pin Select (PPS). It operates from 2.3V to 5.5V and supports industrial temperature range (–40°C to +85°C), targeting battery-powered sensor nodes and low-cost motor control.

For engineers reviewing the PIC16F18424T-I/ST datasheet, PIC16F18424T-I/ST pinout, PIC16F18424T-I/ST application, or PIC16F18424T-I/ST equivalent, key selection criteria include its 12-channel 12-bit ADC with oversampling, 50 nA sleep current, PPS-enabled I/O flexibility, and dual CWG for half-bridge gate drive - all in a compact TSSOP-14 package.

Technical Context

The PIC16F18424T-I/ST implements a RISC core with 48 instructions and a 16-level hardware stack, supporting up to 32 MHz operation via internal oscillator or external source with 4× PLL. Its Core Independent Peripherals include two Complementary Waveform Generators (CWG) with rising/falling edge dead-band control and full/half-bridge drive modes.

Analog integration includes a 12-bit ADC with automated post-processing (averaging, threshold comparison), zero-cross detect (ZCD) for TRIAC timing, and a rail-to-rail 5-bit DAC with internal connections to ADC/comparators. Power management features include Doze, Idle, Sleep, and Peripheral Module Disable (PMD) for granular peripheral power gating.

Key Specifications

Pinout & Package

TSSOP-14 package (4.4 mm × 5.0 mm, 0.65 mm pitch) with exposed pad recommended to be connected to VSS for thermal and electrical stability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with PIC16F18444T-I/ST and PIC16F18425T-I/ST, the PIC16F18424T-I/ST offers optimal cost/performance balance for single-serial, 11-channel analog applications - delivering full XLP, CWG, and PPS functionality in the smallest memory footprint of the family.

Availability

PIC16F18424T-I/ST is available at Aetrix Electronics and suitable for smart lighting control, industrial sensor nodes, and small appliance motor control requiring stable component supply across long-lifecycle production programs.

Supply support for PIC16F18424T-I/ST 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 is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and development tools, with ISO/TS 16949-certified manufacturing.

The PIC16(L)F184XX family was designed for ultra-low-power, cost-sensitive embedded applications requiring intelligent analog integration, autonomous peripherals, and flexible I/O routing - especially in battery-operated and space-constrained systems.

FAQ

What is the maximum operating frequency of the PIC16F18424T-I/ST?

The PIC16F18424T-I/ST supports up to 32 MHz operation using its internal HFINTOSC with 4× PLL or an external clock source. At 32 MHz, the instruction cycle is 125 ns, enabling real-time response in motor control and sensor acquisition loops. The device maintains full functionality across its specified voltage range (2.3V–5.5V) at this speed.

Does the PIC16F18424T-I/ST support in-circuit serial programming (ICSP)?

Yes, the PIC16F18424T-I/ST supports ICSP via RA0/ICSPDAT and RA1/ICSPCLK pins in the TSSOP-14 package. These pins double as general-purpose I/O during normal operation and require no additional hardware for programming. The MCLR/VPP/RA3 pin provides the necessary programming voltage and reset control, making the PIC16F18424T-I/ST field-upgradable without socket removal.

How many analog input channels does the PIC16F18424T-I/ST support?

The PIC16F18424T-I/ST supports up to 11 external analog input channels (ANA0–ANA5, ANC0–ANC5) mapped to its 12-bit ADC. This count is confirmed in Table 1 of DS40001894B for the PIC16F18424 variant and matches the pin allocation table for the 14-pin package. Internal references (FVR) and temperature sensor are additional analog sources not counted in the 11-channel total.

Is the PIC16F18424T-I/ST pin-compatible with other devices in the PIC16(L)F184XX family?

The PIC16F18424T-I/ST shares identical pinout and function mapping with PIC16F18444T-I/ST in the TSSOP-14 package, including identical ADC, CWG, and PPS assignments. However, it is not pin-compatible with 20-pin or 28-pin variants due to differing pin counts and peripheral allocations. Always verify peripheral enablement (e.g., MSSP2) against the target variant's datasheet.

What debug interface does the PIC16F18424T-I/ST support?

The PIC16F18424T-I/ST supports in-circuit debugging via the ICSP interface using RA0/ICSPDAT and RA1/ICSPCLK, with MCLR/VPP/RA3 serving as the debug reset line. It includes on-chip debugging hardware (denoted "I" in Table 1), enabling full breakpoint, step-through, and register inspection capabilities using MPLAB® ICD 4 or PICkit™ 4 tools without requiring additional debug headers or pins.