dsPIC33F PRODUCT FAMILIES
The dsPIC33F General Purpose Family of devices are ideal for a wide variety of 16-bit MCU embedded applications. The controllers with codec interfaces are well-suited for speech and audio processing applications.
The device names, pin counts, memory sizes and peripheral availability of each family are listed below, followed by their pinout diagrams.

Operating Range:
• Up to 40 MIPS operation (at 3.0-3.6V):
    - Industrial temperature range (-40°C to +85°C)

High-Performance DSC CPU:
• Modified Harvard architecture
• C compiler optimized instruction set
• 16-bit wide data path
• 24-bit wide instructions
• Linear program memory addressing up to 4M instruction words
• Linear data memory addressing up to 64 Kbytes
• 83 base instructions: mostly 1 word/1 cycle
• Sixteen 16-bit General Purpose Registers
• Two 40-bit accumulators:
    - With rounding and saturation options
• Flexible and powerful addressing modes:
    - Indirect, Modulo and Bit-Reversed
• Software stack
• 16 x 16 fractional/integer multiply operations
• 32/16 and 16/16 divide operations
• Single-cycle multiply and accumulate:
    - Accumulator write back for DSP operations
    - Dual data fetch
• Up to ±16-bit shifts for up to 40-bit data

Direct Memory Access (DMA):
• 8-channel hardware DMA:
• 2 Kbytes dual ported DMA buffer area (DMA RAM) to store data transferred via DMA:
    - Allows data transfer between RAM and a peripheral while CPU is executing code (no cycle stealing)
• Most peripherals support DMA

Interrupt Controller:
• 5-cycle latency
• Up to 63 available interrupt sources
• Up to five external interrupts
• Seven programmable priority levels
• Five processor exceptions

Digital I/O:
• Up to 85 programmable digital I/O pins
• Wake-up/Interrupt-on-Change on up to 24 pins
• Output pins can drive from 3.0V to 3.6V
• All digital input pins are 5V tolerant
• 4 mA sink on all I/O pins
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