PIC16F1824-I/ML
PIC16F1824-I/ML - 8-Bit 32MHz 7KB Flash MCU QFN-16 | Microchip
The Microchip PIC16F1824-I/ML is an 8-bit PIC microcontroller built on the enhanced mid-range core with nanoWatt eXtreme Low Power (XLP) technology, delivering up to 32 MHz operation from 7 KB of self-programmable Flash program memory and 256 bytes of EEPROM in a 16-pin QFN (4x4 mm) package. The -I temperature grade supports an industrial range of -40C to +85C with supply voltage operating from 2.5 V to 5.5 V across 12 I/O pins, making it suitable for battery-powered and industrial embedded designs. The PIC16F1824 family integrates a 10-bit ADC with up to 11 channels, two 8-bit timers, one 16-bit timer, enhanced PWM/SCCP modules, mTouch capacitive sensing support, EUSART, I2C/SPI, and an internal 32 MHz oscillator with ±1% HFINTOSC accuracy. The QFN-16 (ML) package provides a 4x4 mm footprint with 0.90 mm height, ideal for compact board layouts where thermal performance and reduced lead inductance matter.
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, RAM, and peripherals such as timers, ADC, and communication interfaces on a single die. PIC microcontrollers from Microchip use a RISC-based Harvard architecture with separate program and data memory paths, allowing instruction fetch and operand access to occur in the same clock cycle. The 'enhanced mid-range' 8-bit core executes one instruction per cycle (typically 200 ns at 20 MHz, or 125 ns at 32 MHz) and supports C-friendly programming via MPLAB X IDE + XC8 compiler. Within the broader product hierarchy, the PIC16F1824 sits as a low-power general-purpose MCU: microcontroller -> embedded controller -> semiconductor -> integrated circuit.
Key features include 384 bytes of RAM, 256 bytes of EEPROM, mTouch capacitive touch sensing, two rail-to-rail I/O banks with selectable weak pull-ups, a DAC module, a comparator module with selectable references, and a low-power sleep current typically below 30 nA in RTCC mode. The internal 16 MHz and 32 MHz oscillators enable designs without an external crystal, while a software-tunable HFINTOSC trim register allows frequency fine-tuning for USB-friendly or asynchronous timing scenarios. The device also supports in-circuit serial programming (ICSP) via standard 5-pin PICkit headers.
Architecturally, the PIC16F1824 uses a 14-bit instruction word optimized for code density, supporting 49 instructions with hardware multiply and indirect addressing. The device integrates a 4x PLL on HFINTOSC, allowing 8 MHz internal clock to be multiplied to 32 MHz for instruction throughput, which is the headroom behind the 32 MHz / 8 MIPS specification. The nanoWatt XLP technology provides multiple power-managed modes (Run, Idle, Sleep, and Deep Sleep with RTCC), giving designers granular control over active vs standby current, which is critical for energy-harvesting and battery-backed designs.
Typical applications include mTouch capacitive touch buttons and sliders, low-power IoT sensor nodes with battery or energy harvesting supply, LED lighting controllers, small appliances, and consumer electronic remote controls. Industrial applications include 4-20 mA loop signal conditioning, HVAC sensor nodes, and USB-ICD-style debug peripherals. The wide 2.5 V to 5.5 V supply tolerance permits unregulated Li-ion battery or 5 V regulated rails.
When designing with the PIC16F1824-I/ML, ensure the QFN-16 exposed thermal paddle (EP) is soldered to a sufficiently large copper pour for mechanical reliability and thermal dissipation; the package has no gull-wing leads, so hand rework is not feasible. For programming/debug, use PICkit 3, MPLAB ICD 3, or MPLAB Snap with the standard ICSP header pattern documented in the Microchip ICD specification.
This page synthesizes verified distributor pricing, parametric same-package drop-in alternatives from the Microchip PIC16F182x family, and practical PCB/thermal design notes not found in the manufacturer datasheet alone, helping procurement engineers and embedded designers evaluate the PIC16F1824-I/ML against other 8-bit MCU options in the same QFN-16 footprint.
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