PIC16F1779-I/ML
PIC16F1779-I/ML - 28KB Flash, 8-bit MCU, 44-QFN | Microchip
The Microchip PIC16F1779-I/ML is an 8-bit PIC® XLP™ flash microcontroller featuring 28KB (16K x 14 words) of program flash, 2KB RAM, and a 32 MHz internal oscillator, housed in a 44-pin QFN (8x8 mm) package with an exposed thermal pad. It belongs to the PIC16(L)F177x family, which integrates a high level of Intelligent Analog and digital peripherals targeted at lighting, power conversion, battery charging, and motor control designs. According to the Microchip product page, the part is part of the extended XLP family with nanoWatt XLP technology for ultra-low-power operation.
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and a rich set of peripheral blocks onto one silicon die. The PIC16F177x family belongs to the 8-bit PIC mid-range architecture, which sits in a taxonomy of: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. Within Microchip's portfolio, mid-range PIC MCUs are widely used in cost-sensitive embedded designs where deterministic interrupt response and long product lifecycle support matter more than raw compute throughput.
Key features of the PIC16F1779 include 28KB flash with self-programmability, 2KB SRAM, 256 bytes of EEPROM, up to 36 I/O pins rated to 100 mA source/sink per pin, peripheral pin select (PPS) for flexible signal routing, four op-amps, 10-bit and 16-bit PWMs, 10-bit DACs, high-speed comparators, zero-cross detect (ZCD), complementary waveform generator (COG), programmable ramp generator (PRG), and SPI/I2C/UART communication. According to the Mouser listing, the device is described as having HEF, HS Comp, 10b DAC, OpAmp, COG, ZCD, PRG, 100 mA I/Os, PPS, 10/16b PWMs, and SPI.
Technically, the PIC16F1779 uses a 14-bit instruction word with a RISC-style pipeline and 32 MHz operation (8 MHz internal oscillator with 4x PLL), supporting 2.5V/3.3V/5V supply ranges. The integrated op-amps, comparators, and DACs form a complete analog front-end, while the COG and PRG blocks support advanced power-supply topologies such as bridgeless PFC, LLC, and synchronous rectification. The ZCD enables AC line zero-crossing detection without external circuitry.
Typical applications include LED lighting drivers (constant-current and color-mixing), switch-mode power supplies, battery chargers, brushless DC (BLDC) and PMSM motor controllers, and general-purpose industrial/IoT endpoints. The exposed thermal pad on the 44-QFN package helps dissipate heat when the device is driving high-current outputs.
When designing with this part, allocate the four op-amp blocks carefully because they share analog resources with the comparators and DAC. Use the PPS feature to remap peripheral I/O onto convenient package pins, reducing PCB layout rework. Order the correct temperature grade (I = -40C to +85C industrial) for your end environment.
This page synthesizes distributor pricing, same-brand drop-in alternatives in the same 44-QFN package, and practical design notes that go beyond the manufacturer datasheet summary.
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