DSPIC33FJ64MC508AT-I/PT
DSPIC33FJ64MC508AT-I/PT - 16-bit 40 MIPS DSC 64KB Flash | Microchip
The Microchip Technology DSPIC33FJ64MC508AT-I/PT is a 16-bit dsPIC33F digital signal controller (DSC) delivering up to 40 MIPS from a 64 KB (64K x 8) FLASH program memory with 8 KB of RAM, supplied in an 80-pin TQFP (12x12 mm, 0.5 mm pitch) surface-mount package rated for -40C to +85C operation.
A digital signal controller combines the computational core of a digital signal processor with the peripheral set and ease of use of a microcontroller. Within the power-management hierarchy, a DSC such as the dsPIC33F sits between general-purpose MCUs and dedicated DSPs, providing single-cycle MAC and DSP instructions alongside familiar MCU peripherals, making it a bridge product in embedded control semiconductors.
Key features include the 16-bit dsPIC33FJ core clocked at up to 40 MIPS, 64 KB of self-programming FLASH, 8 KB of L1 data RAM, 8 DMA channels that move data without CPU intervention, 9 timers, 69 general-purpose I/O pins, and an 18-channel A/D converter supporting 10-bit and 12-bit modes. Communication peripherals include ECAN, I2C, SPI, and UART, enabling integration into industrial networks and multi-chip systems.
The device uses a CMOS process and is part of the dsPIC33F Motor Control family, which provides dedicated PWM peripherals and advanced analog integration aimed at real-time control loops. The A/D converter can sample multiple channels concurrently with the PWM units, a topology that suits field-oriented motor control and digital power conversion where ADC sampling must be synchronized to switching events.
Typical applications include brushless DC motor drives, single- and 3-phase induction motor control, switched reluctance motors, uninterruptible power supplies, digital power supplies, solar inverters, and industrial automation nodes that require ECAN networking. Per Microchip's product page, the dsPIC33FJ64MC508A family explicitly targets these motor control and UPS use cases.
Design consideration: the dsPIC33FJ64MC508A operates from a 3.0 V to 3.6 V supply, so level shifting is required when interfacing with 5 V logic; decouple VDD/VDDCORE per the manufacturer datasheet and take advantage of the tape-and-reel (-T) suffix for automated assembly.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, adding selection guidance beyond standard catalog listings.
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