PIC16F18445-I/GZ
PIC16F18445-I/GZ - 8-Bit XLP MCU 14KB Flash 20-UQFN | Microchip
The Microchip Technology PIC16F18445-I/GZ is an 8-bit PIC microcontroller built on the PIC® XLP™ 16F architecture with Functional Safety (FuSa) support, delivering 32 MHz CPU performance from 14 KB of self-programmable Flash program memory. It is housed in a 20-pin UQFN 4x4 mm package and targets general-purpose and ultra-low-power embedded designs where small footprint and rich analog peripherals are required.
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), and a set of on-chip peripherals such as timers, communication interfaces, ADCs, and GPIO. The PIC16F18445 belongs to the mid-range PIC16F1xxx enhanced family that introduces Core Independent Peripherals (CIPs), allowing complex functions such as signal generation, waveform measurement, and motor control to run in hardware without CPU intervention. Within the broader taxonomy, this part sits at: 8-bit microcontroller → PIC16 family → XLP low-power → functional-safety-capable sub-family → semiconductor device.
Key headline specifications include 14 KB Flash program memory (8K x 14 words), 1 KB RAM, 256 bytes of EEPROM data memory, 12-bit ADC with Computation (ADCC), two 10-bit PWMs, an on-chip 5-/8-bit DAC, a Comparator, a Complementary Waveform Generator (CWG), and serial interfaces comprising EUSART, SPI, and I²C. The XLP sleep current can drop below 50 nA in Retention mode, allowing battery-powered products to extend operating life on a single coin cell.
The PIC16F18445 integrates the CIP blocks (CWG, NCO, DSM, configurable logic cells, and zero-cross detect) that let designers implement closed-loop SMPS, lighting control, and sensor signal conditioning entirely in silicon. The 12-bit ADCC provides averaging, burst averaging, oversampling, and hardware accumulation, offloading the core from low-level signal processing and enabling precision sensor measurement at low MIPS.
Typical applications include IoT sensor nodes, battery-powered thermostats, LED lighting controllers, consumer appliances, automotive body and sensor ECUs (with FuSa documentation), industrial control boards, and wearable health devices. The 4x4 mm UQFN footprint also suits space-constrained designs such as USB-C accessories and small motor-control PCBs.
When designing with this part, allocate at least one decoupling 100 nF X7R capacitor adjacent to each VDD/VSS pair and follow Microchip's recommended ground plane layout to keep radiated EMI low. Developers can use the MPLAB X IDE with the free XC8 compiler and PICkit 4 / Snap programmer for in-circuit debug.
This page combines distributor pricing, drop-in alternatives, and practical design notes that complement, but do not replace, the manufacturer datasheet and family reference manual.
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