PIC16F1787-E/PT
PIC16F1787-E/PT - 8-bit PIC MCU 14KB Flash 32MHz TQFP-44 | Microchip
The Microchip Technology PIC16F1787-E/PT is an 8-bit flash microcontroller in the PIC® XLP™ 16F family, integrating 14 KB of program Flash, 1 KB of data EEPROM, and 1 KB of RAM into a 44-pin TQFP (10x10 mm) surface-mount package. It executes instructions at up to 32 MHz (200 ns minimum instruction cycle), operates from 1.8 V to 5.5 V, and supports the enhanced mid-range PIC core with 49 instructions. The device includes 36 I/O pins, three 12-bit ADC modules, two 8-bit DACs, two op-amps, two high-speed comparators with DAC references, a 16-bit PWM module, and a 32 kHz low-power oscillator for XLP (eXtreme Low Power) operation.
What is a PIC16 microcontroller? A PIC16 is an 8-bit RISC microcontroller from Microchip Technology based on a Harvard architecture that separates program and data memory. PIC16 microcontrollers are widely used in industrial, consumer, and automotive applications because they offer deterministic timing, low power modes, and a mature toolchain (MPLAB X IDE, XC8 compiler). Within the PIC16 taxonomy, the PIC16F1787 belongs to the enhanced mid-range sub-family with on-chip op-amps and 12-bit ADC, placing it in the power-management-adjacent analog MCU category.
Key features of the PIC16F1787-E/PT include 14 KB Flash / 1 KB EEPROM / 1 KB RAM, 12-bit ADC with computation, two on-chip op-amps ideal for sensor signal conditioning, and XLP technology with sleep currents below 50 nA. The E temperature grade spans -40 °C to +125 °C, while the I grade covers the more common -40 °C to +85 °C industrial range. The /PT suffix denotes a TQFP-44 package delivered in tray, which is compatible with standard surface-mount assembly lines.
The architecture supports peripheral pin select (PPS), four 16-bit timers, two USART modules, two SPI, two I²C, and 36 general-purpose I/O pins. Its XLP power-management features, including nanoWatt XLP, RTCC, and multiple idle/doze modes, allow battery-powered designs to operate for years on a single cell. According to the Microchip PIC16F1787 datasheet, the device draws typically 32 µA/MHz at 1.8 V in active mode and as little as 20 nA in sleep mode with RTCC active.
Typical applications include IoT sensor nodes, industrial control panels, low-power remote controls, HVAC sensor interfaces, battery chargers, white-goods motor control, and automotive body controllers. The combination of 12-bit ADC and on-chip op-amps makes it especially attractive for direct thermocouple, strain-gauge, and 4-20 mA sensor interfaces.
When designing with the PIC16F1787-E/PT, budget an external decoupling network of 100 nF per VDD pin and a 10 µF bulk capacitor on AVDD. The on-chip op-amps and comparators require careful PCB placement of analog/digital ground returns, and unused op-amp inputs should be tied to mid-rail through 10 kΩ resistors to avoid spurious switching.
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