DSPIC33FJ128MC510AT-I/PT - 16-Bit 40MIPS 128KB Flash DSC | Microchip
MPN: DSPIC33FJ128MC510AT-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $9.05 | $90.50 |
| 100 | $8.2 | $820.00 |
| 500 | $7.45 | $3,725.00 |
| 1,000 | $6.92 | $6,920.00 |
DSPIC33FJ128MC510AT-I/PT Overview
A Digital Signal Controller (DSC) is a hybrid architecture that fuses a microcontroller (MCU) deterministic control loop with a Digital Signal Processor (DSP) computational engine. DSCs occupy a unique position in the semiconductor taxonomy: MCU -> MCU with DSP -> DSC -> embedded controller -> power conversion IC. The dsPIC33F family specifically targets motor control, where deterministic PWM and high-throughput math (single-cycle MAC) must coexist in a single die.
Key features of this part include a 40 MIPS dsPIC33F core with single-cycle 16x16 MAC, dedicated motor-control PWM (up to 8 outputs with complementary mode and dead-band), a 16-channel 10-bit ADC with 1 MSPS conversion rate, 8 KB RAM, 2 KB EEPROM, and motor-control-centric peripherals including quadrature encoder interface and CAN. The integrated DSP engine delivers 16-bit fixed-point arithmetic in hardware, eliminating instruction overhead for FIR/IIR and PID loops.
Architecturally, the device integrates a 16-bit modified Harvard core with separate program and data buses, allowing simultaneous fetch and execution. The 100-pin TQFP exposes the full peripheral set: PWMP, QEI, ADC, UART, SPI, I2C, CAN, and an external memory interface. This makes it suitable for complex multi-axis drives and uninterruptible power supplies that require deterministic control with high-rate feedback sampling.
Typical applications include 3-phase brushless DC motor drives, single and 3-phase induction motor control, switched reluctance motor control, uninterruptible power supplies (UPS), digital power factor correction (PFC), and servo control. The wide integration eliminates the need for a separate DSP chip in closed-loop motor systems.
When designing with this part, allocate a 100-pin TQFP land pattern (12x12 mm body) and provide a 3.3V analog supply rail separate from the digital supply to minimize ADC noise coupling. Decoupling requires 100 nF ceramic capacitors on every supply pin plus bulk 10 uF on AVDD and VDD.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical motor-control design notes not found in the manufacturer datasheet alone, enabling fast board bring-up and supply chain evaluation.
Drop-in alternatives for DSPIC33FJ128MC510AT-I/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 DSPIC33FJ128MC510AT-I/PT (same form factor and footprint) — differing in Package, Core Architecture, Operating Temperature, ADC, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ128MC510A-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ128MC510A-E/PT
✅ Drop-In✓ In Stock
$5.45 / Unit
View Datasheet →DSPIC33FJ128MC510A-I/PF
✅ Drop-In✓ In Stock
$8.1 / Unit
View Datasheet →DSPIC33FJ128MC506A-I/PT
✅ Drop-In✓ In Stock
$3.2 / Unit
View Datasheet →DSPIC33FJ128MC506AT-I/PT
✅ Drop-In✓ In Stock
$5.1 / Unit
View Datasheet →DSPIC33FJ128MC510AT-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | dsPIC33F (16-bit DSC, modified Harvard) |
| CPU Performance | 40 MIPS @ 3.0V to 3.6V |
| Program Memory (Flash) | 128 KB (128K x 8) |
| Data RAM | 8 KB |
| Data EEPROM | 2 KB |
| Operating Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Package | 100-pin TQFP (12x12 mm) |
| Mounting Type | Surface Mount |
| ADC | 10-bit, up to 16 channels |
| Motor Control PWM | Yes, dedicated PWM module with complementary outputs |
| Quadrature Encoder Interface (QEI) | Yes |
| CAN | Yes (1 module) |
| UART / SPI / I2C | Yes (multiple instances) |
| DSP Engine | 16-bit fixed-point, single-cycle MAC |
| RoHS Status | Compliant |
DSPIC33FJ128MC510AT-I/PT 100-pin tqfp (12x12 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ128MC510AT-I/PT (100-pin tqfp (12x12 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 DSPIC33FJ128MC510AT-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ128MC510AT-I/PT is suitable for 7 applications: 3-Phase Brushless DC (BLDC) Motor Drive, Single-Phase Induction Motor Control, 3-Phase AC Induction Motor VFD, Switched Reluctance Motor (SRM) Control, Uninterruptible Power Supply (UPS) Digital Control, Digital Power Factor Correction (PFC), Servo Motor and Robotics Drives.
3-Phase Brushless DC (BLDC) Motor Drive
The DSPIC33FJ128MC510AT-I/PT drives 3-phase BLDC motors via its dedicated motor-control PWM module with up to 8 outputs, complementary mode, and programmable dead-band insertion. Its 40 MIPS core executes sensorless field-oriented control (FOC) loops in real time, while the 16-channel 10-bit ADC samples phase currents and DC-bus voltage synchronously to the PWM cycle. Place the DSC between gate-driver ICs (such as the Microchip MCP8026) and the power stage; the integrated quadrature encoder interface supports sensored FOC for high-precision servo variants. Compared to a Cortex-M4 implementation, the single-cycle 16x16 MAC eliminates CPU overhead for Clarke/Park transforms, allowing tighter control loops at the same MIPS budget.
Recommended
Single-Phase Induction Motor Control
For single-phase induction motor drives used in home appliances and small pumps, the DSPIC33FJ128MC510AT-I/PT provides the deterministic PWM and 40 MIPS throughput required for V/Hz or vector-control loops. Its 128 KB Flash holds appliance control firmware plus optional power-factor-correction routines. The DSC's hardware QEI decodes shaft position from Hall-effect or optical sensors, while CAN connectivity supports appliance-network protocols. Designers should leverage the dedicated ADC-to-PWM synchronization to sample current at the PWM zero-crossing, eliminating switching noise.
Recommended
3-Phase AC Induction Motor VFD
Variable-frequency drives (VFD) for industrial 3-phase induction motors require high-resolution PWM and fast current sensing - both delivered by the DSPIC33FJ128MC510AT-I/PT's motor-control PWM and 10-bit ADC. The DSC runs indirect FOC with slip compensation, keeping motor efficiency high across the speed range. Its 8 KB RAM accommodates the controller's lookup tables and PI-controller state. The integrated CAN bus enables Modbus/CANopen integration with industrial PLCs, while the industrial -40C to +85C temperature range suits factory-floor deployments.
Recommended
Switched Reluctance Motor (SRM) Control
The DSPIC33FJ128MC510AT-I/PT is well suited for switched reluctance motor drives due to its flexible PWM with independent channel timing and high-current commutation capability. Each SRM phase requires asymmetric half-bridge control with precise turn-on/turn-off angles; the DSC's hardware dead-band insertion and 8-output PWM handle this directly. Its 40 MIPS throughput executes commutation-angle optimization at sub-microsecond intervals. The 2 KB EEPROM stores calibrated phase parameters, while CAN connectivity enables industrial SRM drive networking.
Recommended
Uninterruptible Power Supply (UPS) Digital Control
Digital UPS control loops require precise voltage/current sensing and fast regulation - the DSPIC33FJ128MC510AT-I/PT executes PFC and inverter control at 40 MIPS with the DSP engine accelerating RMS calculations and harmonic compensation. Its 16-channel ADC samples both AC mains and DC-bus current, while the PWM module drives the IGBT inverter stage. The integrated CAN port enables remote UPS monitoring via industrial protocols. Use the DSC's hardware QEI input as a general-purpose timer for inverter switching synchronization.
Recommended
Digital Power Factor Correction (PFC)
Bridgeless totem-pole and boost PFC stages benefit from the DSPIC33FJ128MC510AT-I/PT's 40 MIPS DSP engine, which executes average-current-mode control loops with line-cycle harmonic compensation. Its 10-bit ADC with simultaneous sampling tracks input voltage and inductor current at sub-microsecond intervals. The DSC's hardware PWM provides leading-edge and trailing-edge modulation needed for digital PFC. Place the DSC adjacent to the analog sensing network; route AVDD separately from VDD through a ferrite bead to minimize digital switching noise on ADC inputs.
Recommended
Servo Motor and Robotics Drives
Industrial servo drives demand precise current, velocity, and position loops - the DSPIC33FJ128MC510AT-I/PT's 40 MIPS core plus hardware QEI delivers sub-millisecond cascaded loop execution for CNC servo axes and robotic joint motors. The DSC's PWM module drives the 3-phase power stage at 20 kHz with programmable dead-band, while the 16-channel ADC samples phase currents synchronously to the PWM. Its CAN interface supports CANopen motion-control profiles. Designers should use the 2 KB EEPROM for storing calibrated resolver-offset tables and motor-specific parameters.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ128MC510AT-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ128MC510A-I/PT | DSPIC33FJ128MC510A-E/PT | DSPIC33FJ128MC510A-I/PF | DSPIC33FJ128MC506A-I/PT | DSPIC33FJ128MC506AT-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-100 (12x12 mm) | TQFP-100 (12x12 mm) - same | TQFP-100 (12x12 mm) - same | TQFP-100 (12x12 mm) - same | TQFP-100 (12x12 mm) - same | TQFP-100 (12x12 mm) - same |
| Core Architecture | dsPIC33F 16-bit DSC | dsPIC33F 16-bit DSC | dsPIC33F 16-bit DSC | dsPIC33F 16-bit DSC | dsPIC33F 16-bit DSC | dsPIC33F 16-bit DSC |
| CPU Performance (MIPS) | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Program Flash | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| Data RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Temperature Grade | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Extended (-40C to +125C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Motor Control PWM | Yes (8-output, complementary, dead-band) | Yes (8-output) | Yes (8-output) | Yes (8-output) | Yes (6-output, reduced) | Yes (6-output, reduced) |
| Operating Voltage | 3.0V to 3.6V | 3.0V to 3.6V | 3.0V to 3.6V | 3.0V to 3.6V | 3.0V to 3.6V | 3.0V to 3.6V |
Key Differentiators
- Largest Flash + RAM combination in dsPIC33FJ128MCxxx 100-pin TQFP family (vs DSPIC33FJ128MC506A-I/PT)
- Industrial temperature range at lower cost vs extended-grade variant (vs DSPIC33FJ128MC510A-E/PT)
- Integrated DSP engine for hardware-accelerated motor-control math (vs Generic Cortex-M4 MCU)
Design Notes
Separate AVDD and VDD with a ferrite bead to minimize digital switching noise on ADC references. Place a 10 uF bulk ceramic plus 100 nF decoupling on each AVDD/VDD pair. For motor-control applications with high dV/dt on the power stage, add a Pi-filter (LC) on AVDD to attenuate conducted noise from gate-driver switching. Estimated: at 40 MIPS full load, VDD current is approximately 60-80 mA depending on peripheral activity.
Allocate a 100-pin TQFP (12x12 mm body, 0.4 mm pitch) land pattern with at least 4 thermal vias under the exposed pad to dissipate heat to inner copper planes. Route analog inputs (AN0-AN15) away from PWM outputs and high-current traces - keep at least 3x trace spacing to minimize capacitive coupling. Place the ADC reference decoupling capacitor (1 uF ceramic) within 5 mm of the AVSS pin to reduce ADC gain error. Use a continuous ground plane under the DSC to provide low-impedance return paths for switching currents.
Do not exceed 3.6V on any I/O pin - dsPIC33F I/O are not 5V tolerant and direct connection to a 5V signal will damage the part. Ensure unused PWM outputs are configured as GPIO with the output driver disabled, not floating. The MCLR pin must be pulled high through a 10 kohm resistor; if unused, leave it connected to VDD. Flash programming voltage is generated internally - no external VPP supply needed, but verify VDDCORE stays above 2.5V during programming operations.
Keep crystal oscillator traces short and symmetric - place the 8 MHz or 10 MHz crystal within 5 mm of the OSC1/OSC2 pins with grounded guard traces. For noise-sensitive ADC sampling, synchronize ADC conversions to PWM edge zero-crossings using the PWM Special Event Trigger; this eliminates switching-noise coupling into ADC samples. Estimated: a 5 mm trace between crystal and DSC introduces approximately 2-3 pF parasitic capacitance, which can shift crystal load impedance.
Compliance Information
RoHS and REACH compliant per Microchip product page. Industrial temperature grade; not AEC-Q100 qualified. Lead-free and halogen-free per Microchip environmental compliance documentation.
