PIC16LF76-I/SO
PIC16LF76-I/SO - 8-bit 20MHz 14KB Flash MCU | Microchip
The Microchip Technology PIC16LF76-I/SO is a high-performance, low-power 8-bit PIC microcontroller built on the enhanced mid-range PIC16 architecture, delivering 20 MHz operation (200 ns instruction cycle) with 14 KB of FLASH program memory, 368 bytes of RAM, and 22 digital I/O pins in a 28-pin SOIC wide-body package. The 'LF' suffix designates a wide-voltage variant that operates from 2.0 V to 5.5 V, making it suitable for both 3.3 V and 5 V designs as well as battery-powered applications. The 'I' suffix indicates the industrial temperature grade of -40 °C to +85 °C. According to the Microchip datasheet, this device includes peripherals such as a 10-bit ADC, two Capture/Compare/PWM modules, a synchronous serial port (SSP) supporting SPI and I2C, a USART with addressable receive buffer, a 16-bit timer/counter, two 8-bit timer/counters, an 8-bit parallel slave port, and a watchdog timer with on-chip RC oscillator.
A PIC16 microcontroller is a Harvard-architecture 8-bit RISC MCU family originally introduced by Microchip in the mid-1990s and now spanning thousands of variants across the PIC10, PIC12, PIC16, PIC18, PIC24, dsPIC33, and PIC32 families. PIC16 sits in the mid-range family, offering more peripherals and program memory than PIC10/12 baseline parts while keeping the simple 35-instruction set. PIC16F parts use FLASH program memory, and 'LF' designates a 2.0–5.5 V wide-voltage version versus the standard 4.0–5.5 V 'F' parts. PIC16 MCUs are widely used in industrial control, automotive body electronics, consumer appliances, and low-cost embedded products because of their low power consumption, deterministic interrupt latency, and mature MPLAB X toolchain with XC8 C compiler support.
Key features of the PIC16LF76 include 8K x 14 (14 KB) FLASH program memory with self-programming capability, 368 bytes of data RAM, a programmable code protection mechanism, and in-circuit serial programming (ICSP) via two pins. The wide operating voltage of 2.0–5.5 V allows operation from a single Li-ion cell down to 2.0 V or from a regulated 3.3 V or 5 V rail. With up to 22 I/O pins each capable of 25 mA source/sink (with proper current limiting per pin, port, and total package limits), the part can directly drive LEDs, opto-couplers, and small relays.
The PIC16LF76 is an enhanced mid-range core, providing 14-bit instructions, single-cycle execution (200 ns at 20 MHz), an 8-level hardware stack, and two indirect addressing registers. The peripheral set integrates a 10-bit, 8-channel successive-approximation ADC, two CCP modules supporting capture, compare, and PWM, an MSSP peripheral configurable for SPI master/slave or I2C master/slave modes, an enhanced USART with 9-bit address detect, and a parallel slave port for external bus expansion.
Typical applications include industrial control and sensor interfaces, home appliance control boards, HVAC thermostat controllers, motor control BLDC/PWM drivers, low-cost consumer devices, and remote sensor nodes. With its 2 V minimum supply, the PIC16LF76 is also a frequent choice for battery-powered handheld instrumentation. When designing with this part, ensure the oscillator configuration (HS, XT, LP, RC) is selected in the configuration word to match the crystal or resonator used, and place decoupling capacitors of 0.1 µF as close to VDD/VSS as practical to suppress switching noise. This page synthesizes distributor pricing, drop-in PIC16 family alternatives, and practical design notes beyond the manufacturer datasheet.
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