PIC16F1782-I

The PIC16F1782-I is a 28-pin member of Microchip’s PIC16F17xx family of highly integrated 8-bit microcontrollers with an exceptionally rich analog peripheral set, positioning it as a true ‘mixed-signal system on a chip’ for advanced analog applications. Featuring three operational amplifiers with programmable gain (up to 16x), three high-speed comparators, an 18-channel 12-bit ADC, an 8-bit DAC, and a zero-cross detection module, this device can implement complete analog signal chains—amplification, filtering, comparison, and digitization—without requiring external analog components. The 14 KB of Flash program memory and 1 KB of RAM provide generous resources for implementing digital filtering, calibration algorithms, and control logic alongside communication protocol stacks. The four Configurable Logic Cells (CLC) enable implementation of custom hardware logic functions—including PWM generation, event combining, and signal conditioning—without CPU intervention, enabling very fast response to analog events. The 32 MHz internal oscillator delivers 8 MIPS of processing performance with factory-calibrated accuracy. The PIC16F1782 is particularly well-suited for power supply control, motor drive, energy metering, and industrial sensor applications where high analog integration and real-time control performance are required. The industrial temperature rating ensures reliable operation across a wide range of environmental conditions.

The PIC16F1782-I uses Microchip’s enhanced mid-range PIC architecture with a 14-bit instruction set and 16-level hardware stack, delivering 8 MIPS at 32 MHz clock frequency. The three operational amplifiers are the centerpiece of the analog subsystem, each featuring a built-in programmable gain amplifier (PGA) with selectable gains of 1x, 2x, 4x, 8x, and 16x (in non-inverting configuration), enabling amplification of small sensor signals before digitization. The op-amps can be configured in various topologies including non-inverting amplifier, inverting amplifier, differential amplifier, and comparator modes, with internal resistor networks eliminating the need for external components. The 12-bit ADC features up to 18 analog input channels with automatic acquisition control and hardware averaging. The three high-speed comparators have programmable hysteresis and can generate interrupts or trigger CLC/PWM actions in hardware, enabling very fast response to analog threshold events. The four CLC modules can implement a variety of combinational and sequential logic functions, with inputs selectable from I/O pins, peripheral outputs, and internal signals. The PWM modules support complementary output pairs with dead-band control, essential for half-bridge and full-bridge motor drive and power supply topologies. The Zero-Cross Detection (ZCD) module monitors the AC line voltage zero-crossing point for TRIAC control and power line communication applications. The EUSART and MSSP serial ports support UART, SPI, and I²C communication protocols.

• High-precision industrial sensor transmitters with analog front-end
• Switch-mode power supply controllers with monitoring and protection
• BLDC motor drives with current sensing and speed control loops
• Portable medical diagnostic equipment and patient monitors
• Single-phase energy metering and power quality monitoring
• Programmable analog front-ends for multi-sensor systems