DSPIC33FJ64MC508A-I/PT - 16-bit DSC 40MIPS 64KB Flash | Microchip
MPN: DSPIC33FJ64MC508A-I/PT ✓ فعالDSPIC33FJ64MC508A-I/PT نمای کلی
A digital signal controller combines the compute power of a DSP with the peripheral integration and ease of use of a microcontroller. In the power-management hierarchy, the dsPIC33F family sits between general-purpose MCUs and standalone DSPs, making it the natural choice for closed-loop digital control systems such as switched-mode power supplies and motor drives.
Key features include the 40 MIPS dsPIC33F core with DSP engine (dual 40-bit accumulators, 17-bit x 17-bit single-cycle MAC), 64 KB flash with self-programming, 8 KB SRAM, CAN 2.0B, multiple UART/SPI/I2C ports, and motor control PWM (MCPWM) outputs with dead-time insertion and fault inputs. The A-suffix revision improves upon the original dsPIC33FJ64MC508 with enhanced analog and peripheral behavior.
The architecture executes digital filter algorithms, high-speed precision digital control loops, and digital audio/speech processing efficiently. Five 16-bit timers, an input capture/output compare bank, and a 10-bit ADC with simultaneous multi-channel sampling support sensorless FOC and field-oriented motor algorithms at loop rates unattainable on general-purpose MCUs.
Typical applications include brushless DC motor control, single and 3-phase induction motor drives, switched reluctance motor control, uninterruptible power supplies, digital power conversion, and CAN-networked industrial nodes.
Design consideration: the dsPIC33FJ core requires a VCAP/ENVREG pin connection to regulate the internal 2.5V core supply - tie ENVREG to VDD for internal regulation and place a low-ESR 10 uF capacitor on VCAP. Decouple each VDD pin with 0.1 uF ceramics.
This page synthesizes distributor pricing, pin-compatible drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
جایگزین‌های drop-in برای DSPIC33FJ64MC508A-I/PT — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای DSPIC33FJ64MC508A-I/PT (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Packaging, Timers, Operating Temperature, Core.
DSPIC33FJ64MC508-I/PT
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←DSPIC33FJ128MC508A-I/PT
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
DSPIC33FJ256MC508A-I/PT
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
DSPIC33FJ64GP708A-I/PT
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←DSPIC33FJ128GP708A-I/PT
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←DSPIC33FJ64MC508A-I/PT حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core | dsPIC33F, 16-bit |
| Max CPU Speed | 40 MIPS |
| Program Memory Size | 64 KB (64K x 8) Flash |
| SRAM Size | 8 KB |
| Supply Voltage Range | 3.0 V to 3.6 V |
| دمای کاری | -40C to +85C (I grade) |
| بسته‌بندی | 80-TQFP (12x12 mm), PT |
| نوع نصب | Surface Mount |
| CAN | 1x CAN 2.0B |
| UART | 2x UART |
| SPI | 2x SPI |
| I2C | 2x I2C |
| Timers | 5x 16-bit |
| ADC | 10-bit, high-speed |
| Motor Control PWM | MCPWM with dead-time insertion and fault inputs |
| Input Capture / Output Compare | Available |
| وضعیت RoHS | Compliant |
| Packaging | Tray |
پیکربندی پین DSPIC33FJ64MC508A-I/PT
| پین 1 | MCLR — Master clear reset (active low), programming voltage input |
| پین 2 | AN0/VREF+/CN2B/RB0 — Analog input 0 / ADC positive reference |
| پین 3 | AN1/VREF-/CN3B/RB1 — Analog input 1 / ADC negative reference |
| پین 4 | AN2/SS1/CN4B/RB2 — Analog input 2 / SPI1 slave select |
| پین 5 | AN3/INDX/CN5B/RB3 — Analog input 3 / QEI index input |
| پین 6 | AN4/QEA/IC7/CN6B/RB4 — Analog input 4 / QEI phase A / input capture 7 |
| پین 7 | AN5/QEB/IC8/CN7B/RB5 — Analog input 5 / QEI phase B / input capture 8 |
| پین 8 | AN6/OCFA/CN8B/RB6 — Analog input 6 / PWM fault A input |
| پین 9 | AN7/FLTA/CN9B/RB7 — Analog input 7 / PWM fault A input |
| پین 10 | AN8/PWM1H1/CN10B/RB8 — Analog input 8 / motor PWM1 high output |
| پین 11 | AN9/PWM1L1/CN11B/RB9 — Analog input 9 / motor PWM1 low output |
| پین 12 | VSS — Ground reference |
| پین 13 | VDD — Positive supply, 3.0V to 3.6V |
| پین 14 | AN10/PWM1H2/CN12B/RB10 — Analog input 10 / motor PWM2 high output |
| پین 15 | AN11/PWM1L2/CN13B/RB11 — Analog input 11 / motor PWM2 low output |
| پین 16 | AN12/PWM1H3/CN14B/RB12 — Analog input 12 / motor PWM3 high output |
| پین 17 | AN13/PWM1L3/CN15B/RB13 — Analog input 13 / motor PWM3 low output |
| پین 18 | AN14/PWM1H4/CN16B/RB14 — Analog input 14 / motor PWM4 high output |
| پین 19 | AN15/PWM1L4/CN17B/RB15 — Analog input 15 / motor PWM4 low output |
| پین 20 | VCAP/ENVREG — Core regulator capacitor / internal regulator enable |
| پین 21 | AVDD — Analog positive supply |
| پین 22 | AVSS — Analog ground |
| پین 23 | TCK — JTAG test clock |
| پین 24 | TDI — JTAG test data in |
| پین 25 | TDO — JTAG test data out |
| پین 26 | TMS — JTAG test mode select |
| پین 27 | PGEC3 — ICSP clock channel 3 |
| پین 28 | PGED3 — ICSP data channel 3 |
| پین 29 | PGEC2 — ICSP clock channel 2 |
| پین 30 | PGED2 — ICSP data channel 2 |
| پین 31 | PGEC1 — ICSP clock channel 1 |
| پین 32 | PGED1 — ICSP data channel 1 |
| پین 33 | OSC1/CLKI — Oscillator crystal input / external clock input |
| پین 34 | OSC2/CLKO/RC15 — Oscillator crystal output / clock output |
| پین 35 | SOSCI/CN1/RC13 — Secondary oscillator input / port pin |
| پین 36 | SOSCO/T1CK/CN0/RC14 — Secondary oscillator output / Timer1 clock |
| پین 37 | RE0 — Port E, bit 0 |
| پین 38 | RE1 — Port E, bit 1 |
| پین 39 | RE2 — Port E, bit 2 |
| پین 40 | RE3 — Port E, bit 3 |
| پین 41 | VDD — Positive supply, 3.0V to 3.6V |
| پین 42 | VSS — Ground reference |
| پین 43 | RE4 — Port E, bit 4 |
| پین 44 | RE5 — Port E, bit 5 |
| پین 45 | RE6 — Port E, bit 6 |
| پین 46 | RE7 — Port E, bit 7 |
| پین 47 | RE8 — Port E, bit 8 |
| پین 48 | RE9 — Port E, bit 9 |
| پین 49 | RF1/C1TX — Port F, bit 1 / CAN1 transmit |
| پین 50 | RF0/C1RX — Port F, bit 0 / CAN1 receive |
| پین 51 | RF4 — Port F, bit 4 |
| پین 52 | RF5 — Port F, bit 5 |
| پین 53 | RF2/SDI1 — Port F, bit 2 / SPI1 data in |
| پین 54 | RF3/SDO1 — Port F, bit 3 / SPI1 data out |
| پین 55 | RF6/SCK1 — Port F, bit 6 / SPI1 clock |
| پین 56 | RF7/SS1 — Port F, bit 7 / SPI1 slave select |
| پین 57 | RF8 — Port F, bit 8 |
| پین 58 | RF12 — Port F, bit 12 |
| پین 59 | RF13 — Port F, bit 13 |
| پین 60 | VDD — Positive supply, 3.0V to 3.6V |
| پین 61 | VSS — Ground reference |
| پین 62 | RG0 — Port G, bit 0 |
| پین 63 | RG1 — Port G, bit 1 |
| پین 64 | RG2/SDA2 — Port G, bit 2 / I2C2 data |
| پین 65 | RG3/SCL2 — Port G, bit 3 / I2C2 clock |
| پین 66 | RG6/SCK2 — Port G, bit 6 / SPI2 clock |
| پین 67 | RG7/SDI2 — Port G, bit 7 / SPI2 data in |
| پین 68 | RG8/SDO2 — Port G, bit 8 / SPI2 data out |
| پین 69 | RG9/SS2 — Port G, bit 9 / SPI2 slave select |
| پین 70 | VSS — Ground reference |
| پین 71 | VDD — Positive supply, 3.0V to 3.6V |
| پین 72 | RG12 — Port G, bit 12 |
| پین 73 | RG13 — Port G, bit 13 |
| پین 74 | RG14 — Port G, bit 14 |
| پین 75 | RD0/IC1 — Port D, bit 0 / input capture 1 |
| پین 76 | RD1/OC1 — Port D, bit 1 / output compare 1 |
| پین 77 | RD2/IC2 — Port D, bit 2 / input capture 2 |
| پین 78 | RD3/OC2 — Port D, bit 3 / output compare 2 |
| پین 79 | RD4/IC3 — Port D, bit 4 / input capture 3 |
| پین 80 | RD5/OC3 — Port D, bit 5 / output compare 3 |
کاربردهای معمول
DSPIC33FJ64MC508A-I/PT مناسب است برای 6 کاربردs: Brushless DC Motor Control, Single and 3-Phase Induction Motor Drives, Uninterruptible Power Supplies (UPS), Switched Reluctance Motor Control, Industrial CAN Networking Nodes, Digital Power Conversion.
Brushless DC Motor Control
The DSPIC33FJ64MC508A-I/PT is purpose-built for BLDC drives: its 40 MIPS DSP core closes current-loop FOC or trapezoidal commutation algorithms with single-cycle 17x17 MAC operations, while the MCPWM module generates complementary PWM pairs with hardware dead-time insertion and fault inputs for inverter protection. The 10-bit ADC samples phase currents and bus voltage simultaneously for sensorless or hall-based control. Placed at the heart of a three-phase inverter with a gate driver such as the MCP802x or IR21xx family, the DSC achieves kHz-rate current loops and smooth low-speed torque. The 64 KB flash accommodates the full control stack, field weakening, and a CAN or UART diagnostic layer without external memory.
پیشنهادی
Single and 3-Phase Induction Motor Drives
According to Microchip, the dsPIC33FJ64MC508A family directly supports single and 3-phase induction motor applications. The 40 MIPS core executes V/f scalar control or rotor-flux-oriented control at the sampling rates these drives demand, and the motor-control PWM's complementary outputs with dead-time insertion drive the IGBT/MOSFET bridge safely. Five 16-bit timers and the input capture peripherals handle encoder or resolver feedback, while the CAN 2.0B module integrates the drive into industrial fieldbus networks. The industrial -40C to +85C rating suits factory floor environments, and the 3.0V-3.6V rail simplifies integration with 3.3V logic isolators and communication transceivers on the drive control board.
پیشنهادی
Uninterruptible Power Supplies (UPS)
Microchip positions the dsPIC33F motor-control DSCs as well-suited for uninterruptible power supplies. The DSPIC33FJ64MC508A-I/PT executes the multi-loop inverter regulation (voltage outer loop, current inner loop) needed for clean sine-wave output at 40 MIPS, with the DSP engine handling the digital filter and PI computations deterministically. Its 10-bit ADC captures AC output, battery current, and DC bus simultaneously; the MCPWM module generates the inverter and PFC switching patterns. The CAN interface enables parallel-UPS current sharing and supervisory communication. The 64 KB flash stores control firmware plus logging and bootloader functions, and the industrial temperature grade fits the harsh thermal environment inside UPS enclosures.
پیشنهادی
Switched Reluctance Motor Control
Switched reluctance (SR) motors require precise, per-phase current chopping with asymmetric excitation - exactly what the DSPIC33FJ64MC508A-I/PT's MCPWM module provides with independently controlled complementary outputs and cycle-by-cycle current limiting via fault inputs. The 40 MIPS DSP core runs torque-ripple-minimization algorithms that need heavy multiplication throughput, and the 10-bit ADC's simultaneous multi-channel sampling captures the unipolar phase currents SR machines require. Microchip explicitly lists switched reluctance motors among the family's supported applications. The 80-pin TQFP gives enough port pins for gate control, current sensing, position feedback, and a CAN or UART link to the host controller in industrial SR drive systems.
پیشنهادی
Industrial CAN Networking Nodes
The integrated CAN 2.0B controller makes the DSPIC33FJ64MC508A-I/PT a strong single-chip solution for industrial automation nodes that also need real-time local control. RS Components highlights that the dsPIC33F family offers 'the performance of a DSP with the simplicity of an MCU,' letting one 40 MIPS part handle protocol handling, sensor processing, and actuator control without a second processor. Two UARTs, two SPIs, and two I2C ports connect to HMIs, EEPROMs, and sensor front-ends, while the 64 KB flash holds the full protocol stack. The industrial -40C to +85C rating and 3.0V-3.6V supply match standard 3.3V CAN transceiver designs for factory automation and building control networks.
پیشنهادی
Digital Power Conversion
The DSPIC33FJ64MC508A-I/PT serves in digitally controlled power conversion stages - PFC front-ends, LLC resonant converters, and DC-AC inverters - where its 40 MIPS core closes control loops at hundreds of kHz of effective bandwidth. The high-speed 10-bit ADC samples output voltage and inductor current with precise trigger synchronization from the MCPWM module, enabling phase-shifted and complementary drive topologies with hardware dead-time control. The 17x17 MAC DSP engine computes the notch and lead-lag compensators these converters need. For heavier power-stage control, it pairs naturally with the GS-series digital power DSCs in multi-stage architectures. The 64 KB flash retains calibration tables and firmware upgrade capability in the field.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای DSPIC33FJ64MC508A-I/PT — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | DSPIC33FJ64MC508-I/PT | DSPIC33FJ128MC508A-I/PT | DSPIC33FJ256MC508A-I/PT | DSPIC33FJ64GP708A-I/PT |
|---|---|---|---|---|---|
| Package | 80-TQFP (12x12 mm), PT | 80-TQFP (12x12) - same | 80-TQFP (12x12) - same | 80-TQFP (12x12) - same | 80-TQFP (12x12) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Program Flash | 64 KB | 64 KB | 128 KB | 256 KB | 64 KB |
| Motor Control PWM (MCPWM) | Yes | Yes | Yes | Yes | No (GP output compare) |
| CAN 2.0B | 1x | 1x | 1x | 1x | 1x |
| Operating Temperature | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| Die Revision | A (enhanced) | Original (non-A) | A (enhanced) | A (enhanced) | A (enhanced) |
تفاوت‌های کلیدی
- Enhanced A-revision silicon (در مقابلDSPIC33FJ64MC508-I/PT)
- Lowest-cost entry to 80-pin MC family (در مقابلDSPIC33FJ128MC508A-I/PT)
- Motor-control PWM with dead-time insertion (در مقابلDSPIC33FJ64GP708A-I/PT)
یادداشت‌های طراحی
The dsPIC33FJ core requires the on-chip regulator to be configured at power-up. Tie ENVREG to VDD to enable the internal 2.5V core regulator and place a low-ESR, temperature-stable 10 uF ceramic capacitor (X7R/X5R) directly on the VCAP pin. Do not drive VCAP externally when ENVREG is high. Decouple every VDD pin with 0.1 uF ceramic capacitors placed within 2 mm of the pin, and connect AVDD/AVSS to a quiet analog supply, ideally via an RC or ferrite filter from the digital rail to preserve ADC accuracy.
For the 80-TQFP (12x12 mm) footprint, use a solid ground plane on layer 2 and place the 0.1 uF VDD decoupling capacitors on the component side close to pins 12, 41, 60, 70 (VSS) and 13, 41, 60, 71 (VDD groups). Route motor PWM outputs (complementary pairs with dead-time insertion) away from the analog input traces feeding the ADC to prevent switching noise coupling into current-sense channels. Keep the CAN pairs RF0/RF1 routed as a controlled-impedance differential pair to the transceiver.
The '-I' grade is rated to +85C ambient only - do not substitute this part into designs qualified for extended temperature; order the -E suffix variant instead. The non-A revision (DSPIC33FJ64MC508-I/PT) is drop-in compatible but has older silicon errata; always check the current Microchip errata document for your die revision before locking the design. When using the EC or XT oscillator modes, respect the load capacitance specified for the crystal to guarantee startup across the full -40C to +85C range.
When driving IGBT/MOSFET gate circuitry from the MCPWM outputs, keep the trace impedance low and add series resistors (22-100 ohm) near the DSC pins to damp ringing into long gate-driver traces. The fault inputs (FLTA/OCFA) are intended for cycle-by-cycle current limiting - terminate them actively (pull-up/pull-down as appropriate) so a broken sensor wire does not float the fault state and stall or free-run the motor inverter.
اطلاعات انطباق
RoHS compliant and lead-free per distributor classifications (DigiKey, LCSC). AEC-Q100 qualification not stated in provided data for this exact ordering code.
