PIC16F18346-I/ML
PIC16F18346-I/ML - 28KB Flash 32MHz 8-bit MCU | Microchip | 20-QFN
The Microchip PIC16F18346-I/ML is an 8-bit PIC16F microcontroller with 28 KB of Flash, 2 KB of RAM, and 256 bytes of EEPROM, packaged in a 20-pin QFN (4x4 mm) (ML) form factor with XLP (eXtreme Low Power) technology and Functional Safety (FuSa) support. It executes instructions at up to 32 MHz, integrates a 10-bit ADC, a 5-bit DAC, comparators, 10-bit PWM, CCP, CLC, NCO, CWG, PPS-mapped digital peripherals, and EUSART/SPI/I2C communications.
An 8-bit PIC microcontroller is a low-power, deterministic Harvard-architecture MCU built around a RISC instruction set with on-chip Flash program memory, byte-addressable RAM, and EEPROM data storage. PIC16F parts sit between the baseline PIC10/PIC12 families and the higher-end PIC18/PIC24 families, offering a balanced combination of analog integration, peripheral pin select (PPS) flexibility, and ultra-low-power sleep modes for general-purpose embedded designs. Within the broader taxonomy, the PIC16F18346 belongs to: PIC16F183xx -> PIC16F -> PIC mid-range -> PIC microcontroller -> 8-bit MCU -> microcontroller -> embedded controller -> semiconductor.
Key features include 16 KB words (28 KB) of self-programmable Flash with program counter up to 16K x 14, 2 KB SRAM, 256 bytes EEPROM, a 10-bit ADC with up to 17 channels, a 5-bit DAC, zero-cross detect, brown-out reset (BOR), windowed watchdog timer (WWDT), and four 16-bit timers. The device also includes the Configurable Logic Cell (CLC), Complementary Waveform Generator (CWG), Numerically Controlled Oscillator (NCO), and Peripheral Pin Select (PPS), which lets designers remap digital peripherals to virtually any I/O pin.
The PIC16F18346's XLP nanoWatt architecture offers sleep currents measured in hundreds of nA, making it suited to long-life battery-powered designs. Its Functional Safety (FuSa) capability and IEC 60730 Class B support make it suitable for safety-critical appliance and industrial control applications where software-based self-test is mandatory.
Typical applications include consumer appliances, IoT sensor nodes, low-power wireless MCU hosts, industrial control, smart metering, capacitive touch interfaces (via mTouch), LED lighting controllers, and general-purpose embedded control. Its 20-QFN (4x4 mm) footprint is ideal for space-constrained designs.
When designing, pay attention to PPS remapping: digital peripherals default to fixed pins but can be relocated, freeing the actual I/O for application use. Also, the eXtreme Low Power modes (Sleep, Doze, Idle, Peripheral Module Disable) directly extend battery life in sensor and remote-control applications.
This page synthesizes distributor pricing, drop-in alternatives, application examples, and design notes not consolidated on the manufacturer product page.
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