PIC18F45Q71-E/PT

Microcontrollers Overview

The PIC18F45Q71-E/PT is a 40-pin microcontroller featuring 32 KB of Flash program memory, 2048 bytes of SRAM, and 256 bytes of Data EEPROM. It operates at clock speeds up to 64 MHz with an operating voltage range of 1.8V to 5.5V. The device includes a 12-bit Differential ADC with computation capabilities, two operational amplifiers, one 10-bit DAC, two 8-bit DACs, and two high-speed comparators. Digital peripherals include three 16-bit PWMs, two UARTs, one SPI, and one I2C module.

Microcontrollers Feature Summary

• Features a 12-bit Differential Analog-to-Digital Converter with automated math functions and context switching for optimized signal processing.
• Includes four Direct Memory Access (DMA) controllers for hardware-managed data transfers between memory spaces without CPU intervention.
• Integrates two Operational Amplifiers with programmable gain and automatic input offset voltage calibration.
• Supports advanced analog control through the Analog Peripheral Manager for dynamic power optimization of analog modules.

Microcontrollers Applications

• High bandwidth mixed signal applications
• Sensor interface circuits
• Lighting control systems
• Motor control implementations
• Medical market segments

Microcontrollers Procurement Notes

Verify the specific suffix 'E' indicates industrial temperature range (-40°C to 85°C) and 'PT' denotes the 40-pin TQFP package. Confirm datasheet revision DS40002348F matches the required specifications. Ensure compatibility with In-Circuit Serial Programming (ICSP) requirements for your development environment.

Microcontrollers Selection Notes

Select this component when 32 KB of Flash and 2048 bytes of SRAM are sufficient for application logic. The 40-pin TQFP package is suitable for surface mount designs requiring moderate pin counts. Consider the integrated analog peripherals if external op-amps or ADCs are unnecessary, reducing overall bill of materials.

Microcontrollers Part Context

This device belongs to the PIC18-Q71 family, designed for low-power, high-performance mixed-signal applications. It shares architectural similarities with the PIC18F44Q71, PIC18F54Q71, and PIC18F55Q71, differing primarily in memory sizes and pin counts. The family utilizes a C compiler optimized RISC architecture.

Microcontrollers Replacement Considerations

PIC18F44Q71-E/PT offers identical features with 16 KB Flash and 1024 bytes SRAM. PIC18F54Q71-E/MQ provides similar functionality in a 44-pin QFN package with 16 KB Flash. Verify memory requirements before substituting.

Microcontrollers FAQ

Does the PIC18F45Q71 support capacitive touch sensing?

Yes, the 12-bit Differential ADC supports Hardware Capacitive Voltage Divider (CVD) with adjustable sample-and-hold capacitor arrays to automate touch sampling.

What is the maximum instruction cycle time?

The minimum instruction cycle time is 62.5 ns, corresponding to a 64 MHz clock input.