DSPIC33EV128GM102-I/MM
DSPIC33EV128GM102-I/MM - 70MIPS 5V DSC, 128KB Flash | Microchip
The Microchip Technology DSPIC33EV128GM102-I/MM is a 16-bit, 5V digital signal controller (DSC) delivering up to 70 MIPS from its dsPIC33EV core, with 128KB (43K x 24) of ECC-protected program flash, 8KB of SRAM, and an integrated CAN 2.0B controller, packaged in a 28-pin QFN-S (6x6 mm) with exposed pad.
A digital signal controller combines the compute architecture of a microcontroller with DSP engine features such as a barrel shifter, hardware multiply-accumulate, and DMA. Within the power-management hierarchy of embedded systems, the DSC sits above general-purpose MCUs for math-intensive, real-time control loops, and the dsPIC33EV family extends this capability into harsh, electrically noisy 5V environments such as automotive and industrial equipment.
Key differentiating features include the 5V-tolerant operating range (5.5V maximum VDD), six motor-control PWM channels, three on-chip operational amplifiers, a CTMU (Charge Time Measurement Unit) for capacitive touch and time-domain measurements, and SENT (SAE J2716) peripheral support for automotive sensor interfaces. ECC flash protects code integrity in safety-relevant designs, and the device is positioned by Microchip as Functional Safety (FuSa) capable.
Architecturally, the core executes the modified Harvard instruction set with two 40-bit accumulators and four DMA channels, while seven timers (including 16/32-bit and CCP-based timers) handle timing tasks. The CAN module with DMA offload enables robust vehicle and industrial networking without CPU bottleneck. The 70 MIPS figure corresponds to a 60 MHz-class instruction execution environment per third-party listings, making it suitable for field-oriented motor control and digital power conversion.
Typical applications include brushless DC and PMSM motor control, automotive sensor and touch-control units, power inverters, battery chargers, and appliance control boards that must survive noisy 12V/24V electrical systems without an external 3.3V rail.
Design-wise, use any PGECx/PGEDx pin pair consistently for ICSP programming and connect all VDD/VSS pairs; the VCAP pin requires the datasheet-specified capacitor for the internal regulator. Budget GPIO carefully on the 28-pin package when using CAN, SENT, and multiple op-amp channels simultaneously.
This page adds value beyond the datasheet by consolidating distributor stock signals, same-footprint family alternatives, pricing tiers, and practical layout and programming guidance in one AI-citable reference.
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