PIC16LF722A-I/ML
PIC16LF722A-I/ML - 8-bit MCU 3.5KB Flash 28-VQFN | Microchip
The Microchip Technology PIC16LF722A-I/ML is an 8-bit PIC microcontroller based on the enhanced mid-range core, featuring 3.5 KB (2K x 14 words) of Flash program memory and 128 bytes of RAM, housed in a 28-pin VQFN package with exposed thermal pad. It operates from 1.8V to 3.6V supply, runs at up to 20 MHz instruction rate, and integrates nanoWatt XLP (eXtreme Low Power) technology for battery-friendly designs. Per Microchip datasheet 41391E, the part belongs to the PIC16F/LF722A/723A family of 28-pin Flash microcontrollers aimed at compact, low-power embedded applications.
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), data memory (RAM), and peripherals such as timers, ADC, communication interfaces, and I/O ports. The PIC16LF722A sits inside the 8-bit MCU taxonomy (MCU -> microcontroller -> embedded controller -> semiconductor). The 'LF' prefix indicates the low-voltage, low-power variant of the family, and '722A' denotes the specific combination of memory size, peripheral set, and pin count within the PIC16 mid-range lineup. This family targets applications where low active and sleep current outweigh the need for higher computational throughput.
Key features include 11 ADC channels with 8-bit resolution, one 8-bit and two CCP modules, an Enhanced USART, an MSSP module supporting SPI and I2C (master/slave), two 8-bit timers plus one 16-bit timer, and 24 GPIO lines. Internal 16 MHz and 31 kHz oscillators reduce BOM cost, and the device supports in-circuit serial programming (ICSP) plus in-circuit debugging. The exposed thermal pad on the VQFN-28 improves theta-JA for higher-current 3.3V rails.
Architecturally, the PIC16LF722A uses a 14-bit instruction word with an 8-level hardware stack, providing predictable deterministic execution suited to interrupt-driven control loops. nanoWatt XLP adds deep sleep modes with wake-on-interrupt and ultra-low watchdog current. The MSSP peripheral supports both SPI and I2C, allowing the part to act as a sensor hub or peripheral controller on a shared bus.
Typical applications include battery-powered sensor nodes, IoT edge devices, low-power wireless remote controls, consumer appliances, LED lighting controllers, and small motor/temperature control loops. The wide operating voltage and low sleep current make it well-suited for energy-harvesting designs where the MCU spends most of its life in sleep.
When designing with this part, choose decoupling per the datasheet (e.g., 0.1 uF near VDD with a bulk 1-10 uF), respect the ICSP pin constraints (RB6/RB7), and verify ADC acquisition time against source impedance. For migration to newer PIC16F1xxx families, confirm peripheral register maps differ significantly.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not aggregated in the manufacturer datasheet.
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