DSPIC33FJ64GP706A-E/PT - 16-bit DSC, 40 MIPS, 64KB Flash | Microchip
MPN: DSPIC33FJ64GP706A-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.65 | $8.65 |
| 10 | $7.85 | $78.50 |
| 100 | $6.95 | $695.00 |
| 500 | $6.2 | $3,100.00 |
| 1,000 | $5.55 | $5,550.00 |
DSPIC33FJ64GP706A-E/PT Overview
A digital signal controller combines the peripheral set and ease of use of a microcontroller with the computational architecture of a DSP. Within the power-management hierarchy of embedded semiconductors, the DSC sits between general-purpose MCUs and dedicated DSPs: it executes C code on a 16-bit modified Harvard RISC core while adding DSP-class multiply-accumulate (MAC) instructions, a hardware divide, and dual 40-bit accumulators for filter and control-loop math.
Key features of this General Purpose (GP) variant include 40 MIPS maximum core throughput, two 3-channel 12-bit ADCs capable of simultaneous sampling, three analog comparators, multiple UART/SPI/I2C ports for connectivity, and PWM/capture peripherals suited to motor control and power conversion. The A suffix denotes the enhanced revision of the dsPIC33FJ silicon with improved analog performance.
Architecturally, the dsPIC33F core supports a five-stage pipeline with 16x16 working register array, single-cycle MAC with dual operand fetch, and hardware loop constructs (DO and REPEAT) that reduce code overhead in DSP kernels. Flash is self-programmable for field firmware updates, and the device includes a PLL with configurable prescaler/postscaler to generate the 40 MHz instruction clock from low-cost crystals.
Typical applications include automotive body and powertrain-adjacent modules requiring AEC-Q100-grade silicon, industrial digital power supplies and LED drivers, sensor signal processing, and audio/communications processing. The GP (general purpose) family is chosen when both MCU-style peripherals and DSP math are needed in one chip.
Design consideration: the E temperature suffix (-40C to +125C) comes with relaxed speed derating in some family members, so verify the datasheet MIPS-vs-temperature table; also plan for 3.3V-only I/O (not 5V tolerant in this family) when interfacing legacy logic.
This page synthesizes distributor pricing, drop-in family alternatives, pinout guidance, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ64GP706A-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 DSPIC33FJ64GP706A-E/PT (same form factor and footprint) — differing in Package, Core Architecture, Operating Temperature, Programming Interface, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ64GP806A-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ128GP706A-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.9 / Unit
View Datasheet →DSPIC33FJ256GP506A-E/PT
✅ Drop-In✓ In Stock
$6.6 / Unit
View Datasheet →DSPIC33FJ64GP706AT-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ64MC506A-H/PT
✅ Drop-In✓ In Stock
$5.8 / Unit
View Datasheet →DSPIC33FJ64GP706A-E/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F RISC (modified Harvard) |
| Max CPU Speed | 40 MIPS (instruction clock) |
| Core Operating Voltage | 3.0 V to 3.6 V (3.3 V nominal) |
| Program Memory | 64 KB Flash (22K x 24-bit instructions) |
| RAM | 16 KB |
| ADC Resolution | 12-bit |
| ADC Channels | 2 modules x 3 channels (simultaneous sampling capable) |
| Analog Comparators | 3 |
| Communication Interfaces | UART, SPI, I2C, ECAN, DCI |
| Timers / PWM | 16-bit timers, Output Compare / Input Capture, Motor Control PWM |
| Operating Temperature | -40C to +125C (E / extended automotive grade) |
| Qualification | AEC-Q100 (automotive) |
| Package | 64-pin TQFP (TFQFP), 10 x 10 mm, 0.5 mm pitch, gull-wing |
| Mounting Type | Surface Mount |
| Packaging | Tray |
| RoHS Status | Compliant |
DSPIC33FJ64GP706A-E/PT 64-pin tqfp (tfqfp), 10 x 10 mm, 0.5 mm pitch, gull-wing Pin Configuration Guide
Pin configuration for DSPIC33FJ64GP706A-E/PT (64-pin tqfp (tfqfp), 10 x 10 mm, 0.5 mm pitch, gull-wing 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 DSPIC33FJ64GP706A-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ64GP706A-E/PT is suitable for 6 applications: Automotive Body & Sensor Modules, Industrial Digital Power Supplies, Brushless Motor Control (BLDC/PMSM), Audio and Speech Signal Processing, Sensor Signal Acquisition & Conditioning, LED Lighting & Ballast Controllers.
Automotive Body & Sensor Modules
The DSPIC33FJ64GP706A-E/PT is AEC-Q100 qualified with an E temperature grade of -40C to +125C, making it directly suitable for automotive modules exposed to harsh under-hood and exterior environments. Its 12-bit ADC modules with simultaneous sampling support multiple sensor inputs (pressure, position, current) at kHz rates, while the ECAN interface provides the standard in-vehicle network connection. The 40 MIPS core executes digital filtering and diagnostic algorithms in real time without external assistance. In a typical body-control node, the DSC samples sensors through the ADCs, runs fault-detection code on the core, and transmits status over CAN with minimal external glue logic.
Recommended
Industrial Digital Power Supplies
Digital SMPS and PFC stages demand fast control loops; the dsPIC33FJ64GP706A delivers a single-cycle 16x16 MAC and hardware divide that execute PID and compensator math in a few microseconds at 40 MIPS. The Motor Control PWM peripheral generates complementary high-resolution PWM outputs with dead-time control for half-bridge converters, and the 12-bit ADCs can synchronize conversions to PWM boundaries for ripple-free current sampling. The 3 analog comparators add hardware overcurrent protection independent of firmware latency. Combined with a gate driver, the DSC forms a complete digitally controlled power stage with telemetry over UART or SPI.
Recommended
Brushless Motor Control (BLDC/PMSM)
The GP706A fits sensored and sensorless BLDC/PMSM drives: Motor Control PWM produces the six switching signals, input-capture channels measure Hall or back-EMF timing, and the dual ADC modules sample phase currents with simultaneous conversion for FOC (field-oriented control) algorithms. At 40 MIPS, a complete FOC loop with Clarke/Park transforms and PI current controllers executes well within typical 10-20 kHz control frequencies. The AEC-Q100 grade also allows automotive auxiliary motor applications such as pumps and actuators. The 64-pin TQFP provides enough PWM and capture pins for multi-axis or three-phase inverter designs on a single layer.
Recommended
Audio and Speech Signal Processing
The dsPIC33F DCI (Data Converter Interface) peripheral connects directly to common audio codecs in I2S-like modes, while the DSP engine's MAC instructions and hardware loop (DO/REPEAT) constructs run FIR/IIR filters, AGC, and echo cancellation efficiently. With 64KB Flash, medium-complexity speech processing such as noise suppression or DTMF detection fits on-chip without external memory. The 3.3V single-supply operation and TQFP-64 package suit board-level voice modules for intercoms, PA controllers, and kiosk audio. UART and SPI remain available for host communication alongside real-time audio streaming through the DCI peripheral.
Recommended
Sensor Signal Acquisition & Conditioning
Industrial sensor front-ends benefit from the GP706A's two 12-bit ADC modules with simultaneous sampling, which capture multi-channel inputs (for example, bridge sensors and reference channels) without channel skew. On-chip DSP math performs scaling, linearization, and digital filtering in fixed point, while comparators provide threshold alarms in hardware. Results are delivered via UART to a PLC or via ECAN/RS-485 to fieldbus gateways. The -40C to +125C range covers outdoor and process-environment enclosures, and the 3.3V rail simplifies integration with modern analog front-end ICs. Total solution cost stays low because filtering and math are done in the same chip.
Recommended
LED Lighting & Ballast Controllers
High-power LED drivers and electronic ballasts use the GP706A's PWM peripherals for constant-current regulation and dimming control, with the ADC sampling output current for closed-loop accuracy. The DSP core implements compensators and power-factor correction routines, while comparators offer cycle-by-cycle overcurrent shutdown in hardware. DALI or DMX-style protocols can be implemented over UART with firmware, and the ECAN interface connects luminaires to building networks. The extended temperature rating suits enclosed fixtures where ambient temperatures exceed +85C, and 40 MIPS allows smooth 16-bit dimming resolution with high PWM frequencies to eliminate visible flicker.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64GP706A-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ64GP806A-E/PT | DSPIC33FJ128GP706A-E/PT | DSPIC33FJ256GP506A-E/PT | DSPIC33FJ64MC506A-H/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Flash Program Memory | 64 KB | 80 KB | 128 KB | 256 KB | 64 KB |
| Max CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS (per Octopart listing) |
| Family / Peripheral Focus | dsPIC33F General Purpose (GP) | General Purpose (GP) | General Purpose (GP) | General Purpose (GP) | Motor Control (MC) - PWM/ADC emphasis |
| Operating Temperature | -40C to +125C (E grade) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (H grade) |
| AEC-Q100 Automotive Qualification | Qualified | Qualified | Qualified | Qualified | Qualified (per Octopart listing) |
| Core Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
Key Differentiators
- Extended -40C to +125C automotive temperature grade (vs DSPIC33FJ64GP706AT-I/PT)
- Code-size headroom migration without redesign (vs DSPIC33FJ128GP706A-E/PT)
- General Purpose ADC/peripheral balance (vs DSPIC33FJ64MC506A-H/PT)
Design Notes
Power the dsPIC33FJ64GP706A from a single clean 3.3V rail (3.0V-3.6V). The internal core regulator requires the datasheet-specified capacitor on VCAP (VDDCORE pin) - typically 10uF low-ESR ceramic - for stable operation; omitting it or using the wrong value causes brown-out resets. Place 0.1uF ceramic capacitors at every VDD/VSS pair, plus 4.7-10uF bulk near the supply entry. Feed AVDD through an RC or ferrite bead filter from the digital rail to preserve 12-bit ADC accuracy.
The 64-TQFP with 0.5 mm pitch needs careful fan-out: keep crystal (typically a primary oscillator up to the PLL limit) traces short and guarded by ground, route analog ADC inputs away from PWM and clock lines, and use a solid ground plane under the device. Provide test points for ICSP programming/debugging (PGD/PGC/MCLR) since the QFP cannot be socketed easily. Estimated: keep series resistors on MCLR for ICSP compatibility with PICkit/ICD tools.
Three frequent mistakes with this family: (1) dsPIC33FJ I/O is 3.3V only - not 5V tolerant - so level-shift any 5V signals; (2) the E temperature grade derates maximum MIPS at high ambient, so verify the frequency-vs-temperature table before committing to 40 MIPS at +125C; (3) multiplexed peripheral pins mean a pin assigned to ADC cannot simultaneously serve UART - resolve conflicts in the configuration/peripheral-pin mapping early. Also program the configuration words correctly (oscillator source, PLL settings); wrong FRC/PLL selection is the most common bring-up failure.
For noisy environments (motor drives, automotive), keep ADC sampling synchronized to PWM events using the ADC trigger feature rather than free-running sampling - this avoids sampling during switching transients. Use Microchip's filter design guidance for the comparators and enable digital filtering on captured inputs where needed. Route CAN (ECAN) through a proper transceiver with split termination (~60.4 ohm split with capacitor to ground) for EMC compliance.
Compliance Information
Distributor listings (datasheets.com, Vyrian) identify the part as AEC-Q100 automotive qualified. RoHS/lead-free per standard Microchip TQFP tray offering; REACH and halogen-free status not stated in provided data.
