FPGA Boards

DSPIC33EP256GM306-E/PT

DSPIC33EP256GM306-E/PT - 70 MIPS 16-bit DSC, 256KB Flash | Microchip

The Microchip Technology DSPIC33EP256GM306-E/PT is a 16-bit digital signal controller (DSC) from the dsPIC33EP family, delivering up to 70 MIPS from its dsPIC33E core, with 256KB of Flash program memory and 32KB of RAM, housed in a 64-pin TQFP (10x10 mm) package rated for the extended -40C to +125C automotive temperature range. A digital signal controller combines the deterministic interrupt behavior and peripheral set of a microcontroller with the multiply-accumulate (MAC) DSP engine of a digital signal processor. In the system hierarchy, the DSC sits between a general-purpose MCU and a dedicated DSP, making it the natural choice for closed-loop power conversion and motion applications where both control math and rich peripherals are needed in a single chip. Key features include the integrated DSP engine with hardware MAC acceleration, up to 12 channels of high-resolution PWM for motor control, dual analog-to-digital converters, integrated operational amplifiers, quadrature encoder interface (QEI) blocks, DMA data transfer, RTC and timers, and low-power management modes. The device operates from a 3V to 3.6V supply (3.3V nominal) with 53 general-purpose I/O lines. Architecturally, the dsPIC33E core uses a Harvard bus structure with a 24-bit instruction word and hardware loop support, letting it execute DSP-class filter and transform algorithms at 70 MIPS while simultaneously servicing the control-loop peripherals. Peripheral Pin Select (PPS) allows flexible remapping of digital peripherals onto I/O pins, easing PCB routing and design reuse. Typical applications include precision AC induction, brushless DC and permanent-magnet synchronous motor control, digital power supplies and inverters, industrial automation, robotics, and sensor signal conditioning using the on-chip op amps. Design consideration: all VDD and VSS pairs must be connected, and programming requires PGECx/PGEDx pins to be used as a matched pair; overlooking this is a common bring-up failure. This page adds value beyond the manufacturer datasheet by synthesizing distributor pricing, drop-in alternatives, and practical design notes in one reference.