DSPIC33FJ64MC706A-E/PT - 16-bit 40MIPS DSC 64KB Flash | Microchip
MPN: DSPIC33FJ64MC706A-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.9 | $8.90 |
| 10 | $8.05 | $80.50 |
| 100 | $7.15 | $715.00 |
| 500 | $6.45 | $3,225.00 |
| 1,000 | $5.85 | $5,850.00 |
DSPIC33FJ64MC706A-E/PT Overview
A digital signal controller combines the compute architecture of a digital signal processor (DSP) with the peripherals and ease of use of a microcontroller (MCU). Within the power management hierarchy, DSCs sit at the intersection of real-time signal processing and embedded control, making them the preferred platform for closed-loop control systems such as field-oriented motor control and digital power conversion, where a generic MCU lacks DSP multiply-accumulate throughput.
Key features include a 16-bit dsPIC33F CPU core with DSP engine and 24-bit instruction word, up to 53 general-purpose I/O lines, 8 DMA channels for low-overhead data movement, and 4 serial I/O ports (UART, SPI, I2C) plus a CAN 2.0B controller for industrial networking. The motor-control PWM module outputs complementary PWM pairs with dead-time insertion, essential for driving three-phase inverters safely.
Architecturally, the device operates from a single 3.0V to 3.6V supply and integrates 11 timers, an on-chip oscillator, and advanced analog peripherals. Program Flash is 64K x 8 with self-programming capability, and the DSP instruction set includes single-cycle MAC and hardware division support for filter and transform algorithms.
Typical applications include brushless DC (BLDC) motor control, single and 3-phase induction motor drives, switched reluctance motor control, uninterruptible power supplies (UPS), and digital power supplies. The AEC-Q100 qualification and -E/PT extended temperature grade suit automotive and harsh industrial environments.
A key design consideration: verify the 3.0-3.6V supply rail tolerance and use the VCAP/VDDCORE decoupling network exactly as specified in the manufacturer datasheet for stable core regulation.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ64MC706A-E/PT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with DSPIC33FJ64MC706A-E/PT (same form factor and footprint) — differing in Package, Supply Voltage, Operating Temperature, Core Architecture, RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ64MC706AT-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ64MC706A-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64MC706-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64MC506A-I/PT
✅ Drop-In✓ In Stock
$7.58 / Unit
View Datasheet →DSPIC33FJ64MC506-I/PT
✅ Drop-In✓ In Stock
$5.3 / Unit
View Datasheet →DSPIC33FJ64MC706A-E/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F |
| Maximum Clock Frequency | 40 MHz |
| Performance | 40 MIPS |
| Program Memory Size | 64KB (64K x 8) Flash |
| RAM Size | 16KB (16,384 words) |
| Supply Voltage | 3 V to 3.6 V |
| Operating Temperature | -40C to +125C |
| Package | 64-TQFP (10x10 mm) |
| Number of I/O | 53 |
| DMA Channels | 8 |
| Timers | 11 |
| Serial I/O Ports | 4 |
| Program Memory Width | 24-bit |
| Qualification | AEC-Q100 (automotive) |
| Mounting Type | Surface Mount |
| Series | dsPIC 33F (DSPIC33FJ64MC706A) |
| Applications Focus | Motor Control, CAN, Advanced Analog |
DSPIC33FJ64MC706A-E/PT 64-tqfp (10x10 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ64MC706A-E/PT (64-tqfp (10x10 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for DSPIC33FJ64MC706A-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ64MC706A-E/PT is suitable for 6 applications: Brushless DC (BLDC) Motor Control, Single and 3-Phase Induction Motor Drives, Uninterruptible Power Supplies (UPS), Automotive Auxiliary Motor Systems, Switched Reluctance Motor Control, Industrial Networking and Sensing Nodes.
Brushless DC (BLDC) Motor Control
The DSPIC33FJ64MC706A-E/PT is explicitly listed by Microchip as supporting BLDC motor control. Its motor-control PWM module generates complementary output pairs with programmable dead-time insertion, directly driving three-phase inverter gate drivers without external logic. The 40 MIPS DSP core executes field-oriented control (FOC) or sensorless trapezoidal algorithms with headroom for current-loop sampling at switching frequency. The AEC-Q100 qualification and -40C to +125C extended grade allow deployment in automotive pumps, fans, and actuators where ambient extremes rule out commercial-grade MCUs. With 53 I/O and 11 timers, position sensing (Hall, encoder) and protection (overcurrent comparators) integrate on-chip, minimizing external component count in the drive stage.
Recommended
Single and 3-Phase Induction Motor Drives
Microchip positions the dsPIC33FJ64MC706A family for single and 3-phase induction motor control. Induction drives require computationally intensive transforms (Clarke/Park) and slip estimation, which the 16-bit DSP engine's single-cycle MAC handles efficiently at 40 MIPS. The 64KB Flash accommodates full V/Hz or sensorless vector control firmware plus communication stacks, while the CAN controller interfaces the drive to factory automation networks. In HVAC compressors and industrial pumps, the -E temperature grade tolerates hot enclosures near -125C junction ratings. The 8 DMA channels offload ADC current-sampling sequences so the CPU maintains deterministic control-loop timing across the full load range of the inverter.
Recommended
Uninterruptible Power Supplies (UPS)
The Microchip product page states dsPIC33F Motor Control products are well-suited for uninterruptible power supplies. A UPS requires simultaneous inverter PWM generation, battery-charger control, and AC-line synchronization - tasks the DSPIC33FJ64MC706A splits across its motor-control PWM module, high-speed ADC, and 11 timers. The 40 MIPS core runs the resonant or sine-wave inverter control loop, while 4 serial ports support front-panel communication and the CAN bus supports parallel-UPS current sharing. The 3.0-3.6V rail simplifies interfacing with 3.3V supervisory logic. Its 64KB Flash retains firmware plus data logging, and the extended -40C to +125C grade suits outdoor telecom and industrial UPS cabinets.
Recommended
Automotive Auxiliary Motor Systems
With AEC-Q100 qualification and the -E/PT extended temperature rating of -40C to +125C, this DSC targets automotive auxiliary drives such as radiator fans, fuel pumps, HVAC blowers, and throttle actuators. The integrated CAN 2.0B controller connects the motor node to the vehicle network without an external CAN transceiver controller, and 53 I/O absorb limit switches, position sensors, and diagnostic outputs. The 16-bit DSP core supports sensorless FOC for quiet, efficient operation, while 8 DMA channels keep ADC-based current sampling deterministic under interrupt load. Designers should follow Microchip's qualification guidance and confirm PPAP documentation availability for the specific automotive program.
Recommended
Switched Reluctance Motor Control
The Microchip product page explicitly lists switched reluctance (SR) motor control among supported applications. SR drives demand precise phase-current chopping with asymmetric excitation timing - handled by the DSPIC33FJ64MC706A's independent PWM channels and fast analog comparators. The 40 MIPS, 16-bit core executes torque-ripple-minimization algorithms in real time, while 64KB Flash stores rotor-position estimation routines that replace costly position sensors. Rugged industrial environments (traction, mining, appliances) benefit from the extended temperature grade and the CAN interface for system diagnostics. With 4 serial ports and 11 timers, one DSC can supervise the power stage, communicate with the host controller, and log operational telemetry simultaneously.
Recommended
Industrial Networking and Sensing Nodes
Beyond motor control, the 4 serial I/O ports (UART, SPI, I2C) and CAN 2.0B controller make the DSPIC33FJ64MC706A-E/PT a strong industrial field-node controller. A single device can aggregate analog sensor channels through its ADC, run digital filtering on the 40 MIPS DSP engine, and publish data over CAN to PLCs or over UART to gateways. The 16KB SRAM buffers communication frames via the 8 DMA channels, keeping CPU load low, while 64KB Flash supports protocol stacks and local decision logic. The 10x10 mm 64-TQFP fits dense DIN-rail and distributed I/O modules, and the -40C to +125C grade covers unconditioned factory-floor and outdoor installations.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64MC706A-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ64MC706AT-E/PT | DSPIC33FJ64MC706A-I/PT | DSPIC33FJ64MC506A-I/PT | DSPIC33FJ64MC506-I/PT |
|---|---|---|---|---|---|
| Package | 64-TQFP (10x10) | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Performance | 40 MIPS, 16-bit | 40 MIPS, 16-bit | 40 MIPS, 16-bit | 40 MIPS, 16-bit | 40 MIPS, 16-bit |
| Flash Memory | 64KB (64K x 8) | 64KB (64K x 8) | 64KB (64K x 8) | 64KB (64K x 8) | 64KB (64K x 8) |
| Supply Voltage | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
| Operating Temperature | -40C to +125C (automotive) | -40C to +125C | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) |
| Silicon Revision | A-version (errata corrected) | A-version - same | A-version - same | A-version | Pre-A revision |
Key Differentiators
- Extended automotive temperature range in the MC706A family (vs DSPIC33FJ64MC706A-I/PT)
- Corrected A-version silicon (vs DSPIC33FJ64MC706-E/PT)
- Dedicated motor-control architecture over general-purpose alternatives (vs DSPIC33FJ64GP708A-I/PT)
- Honest trade-off: cost-optimized pin-compatible sibling exists (vs DSPIC33FJ64MC506A-I/PT)
Design Notes
The DSPIC33FJ64MC706A requires a regulated 3.0-3.6V supply and, like all dsPIC33F devices, needs the dedicated VCAP/VDDCORE decoupling network (a low-ESR tantalum/ceramic capacitor of the value specified in the Microchip datasheet) on the internal regulator output pin. Do not power external circuitry from this core-regulator pin. Place bulk 10uF plus 0.1uF decoupling directly at each VDD/VSS pair; with multiple VDD pins on the 64-TQFP, connect all of them to the 3.3V plane to avoid IR-drop-induced brownouts during PWM switching transients.
For the 64-TQFP (10x10 mm) footprint, provide a solid ground plane under the device and fan out the motor-control PWM traces to the gate drivers with matched lengths per phase pair to keep dead-time consistent across phases. Route CANRX/CANTX as a differential pair stub to the transceiver within 30 mm. Keep the analog pins (ANx, AVDD/AVSS) isolated from PWM switching loops using a guard ground region; use the A-version's dedicated analog supply pins rather than sharing digital VDD locally for best ADC accuracy.
Do not substitute the pre-A DSPIC33FJ64MC706 in a design qualified against the A-version: Microchip released the A-version specifically to correct documented errata, so firmware validated on the A-version may behave differently on older silicon. Also verify the temperature suffix: the -I grade is only rated to +85C and is not a legal substitute for the -E/PT in -40C to +125C automotive designs. Finally, confirm the 40 MIPS timing is derived from the configured oscillator (FRC, primary crystal, or PLL) - incorrect PLL configuration is the most common bring-up failure on dsPIC33F designs.
When switching multi-amp inverter loads from the motor-control PWM pins, insert series resistors (typically 22-100 ohm) at the DSPIC33F PWM outputs to damp gate-driver input ringing, and keep the PWM return currents on a local ground reference. The 8 DMA channels driving ADC sequences should be triggered by PWM-aligned triggers so current sampling occurs at the PWM center - a technique Microchip documents in its motor-control application notes - which cancels switching noise in phase-current measurements and improves FOC loop stability.
Compliance Information
Automotive, AEC-Q100 qualified per Hotenda listing ('Automotive, AEC-Q100'). RoHS compliant per pcbelectronics.com and DigiKey listings. Lead-free per standard Microchip /PT suffix convention. REACH and halogen-free status not stated in provided data.
