DSPIC33EP128GS702-E/SO

Microcontrollers Overview

The dsPIC33EP128GS702-E/SO is a 16-bit digital signal controller featuring a 128 KB dual-partition Flash program memory with LiveUpdate support and 8 KB RAM. It operates at up to 70 MIPS within the industrial temperature range of -40°C to +85°C, powered by a 3.0V to 3.6V supply. The device integrates eight high-speed PWM generators with 1.04 ns resolution, a 12-bit ADC module with four dedicated SAR cores supporting up to 3.25 Msps per channel, two programmable gain amplifiers, and four rail-to-rail comparators. Communication interfaces include two UARTs, three SPI modules, two I2C modules, and four-channel DMA.

Microcontrollers Feature Summary

• Dual Partition Flash Program Memory with LiveUpdate capability for in-application programming and partition soft swap
• High-Speed PWM with 1.04 ns resolution supporting center-aligned, redundant, complementary, and true independent output modes
• Advanced Analog Features including a 12-bit ADC with multiple SAR cores, two PGAs, and four comparators with integrated DACs
• Interconnected SMPS Peripherals that reduce CPU interaction through flexible PWM trigger options for ADC conversions

Microcontrollers Applications

• AC/DC power supplies including primary side PFC and secondary side DC/DC regulation
• DC/DC converters and solar inverters
• Advanced lighting applications such as LED and HID drivers
• Battery chargers and uninterruptible power supplies (UPS)

Microcontrollers Procurement Notes

Verify the specific suffix 'E' against official Microchip documentation to confirm it denotes the extended temperature range (-40°C to +125°C) rather than the standard industrial range. Ensure the SOIC-28 package matches your PCB footprint requirements. Cross-reference the full part number with the latest datasheet revision DS70005258C to validate current availability and any potential silicon errata.

Microcontrollers Selection Notes

Select this component when designing digital power systems requiring high-resolution PWM and fast analog feedback loops. The GS70X variant specifically lacks CAN modules compared to the GS80X series, making it suitable for cost-sensitive designs where CAN communication is unnecessary. Consider the 28-pin package constraints regarding available GPIO and remappable peripheral functions for complex layouts.

Microcontrollers Part Context

This device belongs to the dsPIC33EPXXXGS70X/80X family of 16-bit Digital Signal Controllers optimized for digital power applications. It shares the enhanced dsPIC33E CPU core with other members but is distinguished by its specific memory size, lack of CAN interface (unlike the 80X series), and 28-pin physical form factor. It complements the broader dsPIC33E portfolio by offering specialized analog peripherals for power conversion control.

Microcontrollers Replacement Considerations

The dsPIC33EP128GS702-I/MM is a pin-compatible alternative in the same package family but differs in operating temperature qualification.