PIC16LF720-I/SO
PIC16LF720-I/SO - 8-Bit MCU, 16MHz, 3.5KB Flash, 20-SOIC | Microchip
The Microchip Technology PIC16LF720-I/SO is an 8-bit PIC RISC microcontroller with nanoWatt XLP ultra-low-power technology, 3.5KB (2K x 14) of self-read/write Flash program memory, 128 bytes of SRAM, and a 16MHz internal oscillator, housed in a 20-pin SOIC (300 mil) industrial-temperature package. Operating from 1.8V to 3.6V (LF variant for low-voltage systems), it delivers up to 16 MIPS and provides on-chip peripherals including a 12-channel 8-bit ADC, one 8-bit and two 16-bit timers, an enhanced CCP module, and serial interfaces (I2C, SPI, AUSART).
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path that executes one instruction per clock cycle (with pipelining) and integrates CPU, RAM, non-volatile program memory (Flash/ROM), and peripherals on a single die. PIC microcontrollers from Microchip use a Harvard RISC architecture optimized for deterministic interrupt response and very low active/idle current, sitting within the broader hierarchy of microcontrollers -> embedded processors -> semiconductors. The "LF" prefix denotes the low-voltage/fabrication variant of the PIC16F720 family, enabling battery applications that the standard "F" parts cannot reach because of higher minimum VDD.
Key features of the PIC16LF720 include the nanoWatt XLP power-management family with typical 5 nA sleep current, 8 MHz internal oscillator, 36 I/O capable pins (of which 18 are bonded out on the 20-pin SOIC), 25 mA source/sink I/O drive, in-circuit serial programming (ICSP) via two pins, and a watchdog timer with on-chip low-power 31 kHz oscillator. The device draws roughly 1.6 mA active at 4 MHz from 3V.
Architecturally, the PIC16LF720 uses a 14-bit instruction word, an 8-level hardware stack, and dedicated peripheral interrupt logic. Memory is organized into a 2K-word Flash program space, 128 bytes of general-purpose SRAM, and 128 bytes of non-volatile EEPROM-style data storage, supporting field self-programming. Power-saving modes (Run, Idle, Sleep) are coordinated by the XLP controller that gates clocks per-peripheral, enabling systems to spend the majority of their time in deep sleep.
Typical applications include battery-powered sensor nodes, wearable fitness/health monitors, remote control key fobs (RF or IR), IoT edge devices, low-power consumer products, and home automation endpoints. The SOIC-20 footprint is also widely used as a generic MCU in industrial control daughter-cards where the larger PIC16F-family variants are over-specified.
When designing with this MCU, decouple VDD with a 100 nF plus 1 uF pair, keep ICSP/ICDAT pins reachable through test pads or a header, and budget for the watchdog and Brown-Out Reset (BOR) to recover from low-voltage brownouts in battery designs. The LF silicon (vs. standard F) matters: a design that requires >3.6V VDD must use the PIC16F720 instead.
This page synthesizes distributor pricing from DigiKey and Mouser, drop-in same-package alternatives from the PIC16 family (PIC16F720-I/SO, PIC16LF721-I/SO), and XAIPART's Site MPN set, all wrapped with practical design notes that you will not find in the bare manufacturer datasheet.
見積もり
お問い合わせ