DSPIC30F5011-20E/PT
DSPIC30F5011-20E/PT - 20 MIPS 16-bit DSC, 66KB Flash | Microchip
The Microchip DSPIC30F5011-20E/PT is a 20 MIPS, 16-bit Digital Signal Controller (DSC) integrating DSP functionality into a high-performance 16-bit MCU architecture, with 66 KB of on-chip Flash program memory, housed in a 64-pin TQFP (10x10 mm) package. It is a member of the dsPIC30F general-purpose family, designed for seamless migration to dsPIC33F and PIC24 devices in similar packages.
A Digital Signal Controller (DSC) is a hybrid MCU that combines a traditional microcontroller's peripheral set, deterministic interrupt handling, and ease of use with a DSP engine capable of single-cycle MAC operations. The dsPIC30F5011 specifically belongs to the broader hierarchy of microcontrollers -> 16-bit MCU/DSC -> digital signal controllers -> embedded control solutions, and is engineered for real-time closed-loop control, motor drive, and signal-processing tasks where an 8-bit MCU is too slow and a dedicated DSP is overkill.
Key differentiating features include 4 KB of SRAM, a 16-bit timer/counter module, multiple communication peripherals, a 10-bit or 12-bit ADC option depending on family member, 20 MIPS sustained throughput at 20 MHz oscillator, and an extended temperature grade of -40C to +125C for industrial and automotive under-hood applications. The device operates across 2.5V to 5.5V (3.3V/5V tolerant I/O) and includes robust peripherals suited to power-conversion and motor-control loops.
At the architecture level, the dsPIC30F5011 uses a Harvard-style modified RISC core with a 24-bit instruction word, dual data paths (X and Y) for the DSP engine, and zero-overhead looping. The DSP engine adds a 40-bit accumulator, barrel shifter, and single-cycle 16x16 -> 40-bit MAC, enabling efficient IIR/FIR filtering, FFT, and Park/Clark transforms without burdening the main CPU. Internal PLL options multiply an external oscillator up to the device's rated MIPS.
Typical applications include AC/DC and DC/AC power conversion, BLDC and PMSM motor control, UPS and PFC stages, audio processing front-ends, and industrial sensor conditioning. The wide operating voltage and extended temperature range make it well suited to industrial automation, solar inverters, and appliance motor drives.
When designing with this device, ensure decoupling is placed close to each VDD/VSS pair, that the analog and digital grounds are joined at a single point near the on-chip regulator, and that the ADC reference pin is bypassed with a low-ESR ceramic. Verify that the chosen oscillator mode and PLL configuration keep the instruction frequency at or below the device's 20 MIPS rated throughput, as overclocking voids the timing guarantees in the datasheet.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, giving an engineer a faster path from selection to layout.
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