DSPIC33FJ64MC508T-I/PT - 16-bit DSC, 40 MIPS, 64KB Flash | Microchip
MPN: DSPIC33FJ64MC508T-I/PT ✓ פעילDSPIC33FJ64MC508T-I/PT סקירה
A digital signal controller combines the deterministic architecture and peripherals of a microcontroller with the multiply-accumulate (MAC) DSP engine of a digital signal processor. In the power-management hierarchy, a DSC such as the dsPIC33F family member is a single-chip embedded processor that closes high-speed control loops - for example running field-oriented control of motors - that conventional 8-bit MCUs cannot execute fast enough or with sufficient numerical precision.
Key features include the 40 MIPS core executing up to 80 million MAC operations per second, motor-control PWM peripherals with complementary outputs and dead-time insertion, multiple 10-bit ADCs, UART/SPI/I2C communication ports, and a phase-locked loop (PLL) clock system that generates 40 MIPS operation from a low-cost crystal. The FLASH program memory supports in-circuit serial programming (ICSP) and self-programming for field updates.
Technically, the device pairs the dsPIC33F 16-bit CPU with dedicated DSP instructions (40-bit wide accumulators, dual operand fetch) and single-cycle multiply, enabling real-time control bandwidths in the tens of kilohertz. Code is pin-compatible and source-compatible across the dsPIC33FJ64MC50x family, and Microchip documents seamless migration to PIC24 MCUs and dsPIC30F DSCs in similar packages.
Typical applications include brushless DC (BLDC), single/three-phase induction and switched-reluctance motor control, digital power supplies (power factor correction, LLC converters), solar inverters, and industrial motion-control systems where the on-chip high-resolution PWM and fast ADC are directly matched to the control problem.
A key design consideration: the core supply is internally regulated, so the VCAP pin requires the specified low-ESR capacitor close to the pin for stable operation, and all VDD/VSS pairs must be decoupled individually.
This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not consolidated in the manufacturer datasheet.
חלופות תחליף ישיר עבור DSPIC33FJ64MC508T-I/PT — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם DSPIC33FJ64MC508T-I/PT (אותו גורם צורה וטביעת רגל) — שונים ב Package, Operating Temperature, RAM, ADC, Core Architecture.
DSPIC33FJ64MC508A-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←DSPIC33FJ128MC508A-I/PT
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
DSPIC33FJ64MC506A-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←DSPIC33FJ256MC510T-I/PF
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←DSPIC33FJ64GP708A-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←DSPIC33FJ256GP510T-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←DSPIC33FJ64MC508T-I/PT דירוגים מרביים ומאפיינים חשמליים
| Core | dsPIC33F, 16-bit |
| Max CPU Speed | 40 MIPS |
| Program Memory | 64KB (64K x 8) FLASH |
| RAM | 8KB |
| מתח אספקה | 3 V to 3.6 V |
| טמפרטורת פעולה | -40C to +85C |
| מארז | 80-TQFP (12x12 mm) |
| סוג הרכבה | Surface Mount |
| I/O Ports | 21 |
| ROM Type | Flash |
| Clock Speed | 40 MHz |
| DSP Engine | Single-cycle MAC, 40-bit accumulators |
| Motor Control PWM | Yes (complementary outputs, dead-time insertion) |
| ADC | On-chip 10-bit ADC |
| Communication Interfaces | UART, SPI, I2C |
| Programming | ICSP (In-Circuit Serial Programming), self-programming FLASH |
| Packaging Suffix | T (Tape & Reel), PT (80-pin TQFP) |
| Lifecycle Stage | Active |
תצורת פינים של DSPIC33FJ64MC508T-I/PT
| פין 1 | MCLR — Master clear reset input / programming voltage |
| פין 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / ADC positive reference / I/O |
| פין 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / ADC negative reference / I/O |
| פין 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select / I/O |
| פין 5 | AN3/INDX/CN5/RB3 — Analog input 3 / encoder index / I/O |
| פין 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / encoder A / input capture 7 / I/O |
| פין 7 | AN5/QEB/IC8/CN7/RB5 — Analog input 5 / encoder B / input capture 8 / I/O |
| פין 8 | AN6/OCFA/UPDN/RTCC/RB6 — Analog input 6 / PWM fault A / I/O |
| פין 9 | AN7/OCFB/PMA6/RB7 — Analog input 7 / PWM fault B / I/O |
| פין 10 | VDD — Power supply (3V to 3.6V) |
| פין 11 | VSS — Ground |
| פין 12 | AN8/RP0/PWM1L1/RE0 — Analog input 8 / remappable pin / PWM1 low / I/O |
| פין 13 | AN9/RP1/PWM1H1/RE1 — Analog input 9 / remappable pin / PWM1 high / I/O |
| פין 14 | AN10/RP2/PWM1L2/RE2 — Analog input 10 / remappable pin / PWM2 low / I/O |
| פין 15 | AN11/RP3/PWM1H2/RE3 — Analog input 11 / remappable pin / PWM2 high / I/O |
| פין 16 | AN12/RP68/PWM2L1/RE4 — Analog input 12 / remappable pin / PWM / I/O |
| פין 17 | AN13/RP69/PWM2H1/RE5 — Analog input 13 / remappable pin / PWM / I/O |
| פין 18 | AN14/RP70/PWM2L2/RE6 — Analog input 14 / remappable pin / PWM / I/O |
| פין 19 | AN15/RP71/PWM2H2/RE7 — Analog input 15 / remappable pin / PWM / I/O |
| פין 20 | VSS — Ground |
| פין 21 | VDD — Power supply |
| פין 22 | TMS — JTAG test mode select |
| פין 23 | TCK — JTAG test clock |
| פין 24 | TDI — JTAG test data in |
| פין 25 | TDO — JTAG test data out |
| פין 26 | SOSCI/CN1/RB61 — Secondary oscillator input / change notification / I/O |
| פין 27 | SOSCO/T1CK/CN0/RA4 — Secondary oscillator output / Timer1 clock / I/O |
| פין 28 | OSC1/CLKI/CN30/RA2 — Primary oscillator input / external clock input |
| פין 29 | OSC2/CLKO/RC15 — Primary oscillator output / clock output |
| פין 30 | VSS — Ground |
| פין 31 | VDD — Power supply |
| פין 32 | RP54/RF6 — Remappable pin / I/O |
| פין 33 | RP43/RF2/U1RX — Remappable pin / UART1 receive / I/O |
| פין 34 | RP55/RF7 — Remappable pin / I/O |
| פין 35 | RP20/RF3/U1TX — Remappable pin / UART1 transmit / I/O |
| פין 36 | VSS — Ground |
| פין 37 | VDD — Power supply |
| פין 38 | RP84/RF12/SCL1 — Remappable pin / I2C1 clock / I/O |
| פין 39 | RP83/RF13/SDA1 — Remappable pin / I2C1 data / I/O |
| פין 40 | RP44/RF4/U2RX — Remappable pin / UART2 receive / I/O |
| פין 41 | RP45/RF5/U2TX — Remappable pin / UART2 transmit / I/O |
| פין 42 | SCL2/IC4/RG6 — I2C2 clock / input capture / I/O |
| פין 43 | SDA2/IC5/RG7 — I2C2 data / input capture / I/O |
| פין 44 | U3TX/SDO2/RG8 — UART3 transmit / SPI2 data out / I/O |
| פין 45 | VSS — Ground |
| פין 46 | VDD — Power supply |
| פין 47 | U3RX/SDI2/RG9 — UART3 receive / SPI2 data in / I/O |
| פין 48 | RD8 — Digital I/O |
| פין 49 | RD9 — Digital I/O |
| פין 50 | RD10 — Digital I/O / motor-control PWM |
| פין 51 | RD11 — Digital I/O / motor-control PWM |
| פין 52 | RD12 — Digital I/O |
| פין 53 | RD13 — Digital I/O |
| פין 54 | RD14 — Digital I/O / input capture |
| פין 55 | RD15 — Digital I/O / input capture |
| פין 56 | VDD — Power supply |
| פין 57 | VSS — Ground |
| פין 58 | PWM1L3/RE8 — Motor-control PWM1 low / I/O |
| פין 59 | PWM1H3/RE9 — Motor-control PWM1 high / I/O |
| פין 60 | RP46/RF0/SDO1 — Remappable pin / SPI1 data out / I/O |
| פין 61 | RP47/RF1/SDI1 — Remappable pin / SPI1 data in / I/O |
| פין 62 | RP63/RF8/CN8 — Remappable pin / I/O |
| פין 63 | RP64/RF9/CN9 — Remappable pin / I/O |
| פין 64 | RP85/RF13/CN10 — Remappable pin / I/O |
| פין 65 | RP56/RF10/CN11 — Remappable pin / I/O |
| פין 66 | RP57/RF11/CN12 — Remappable pin / I/O |
| פין 67 | VDD — Power supply |
| פין 68 | VSS — Ground |
| פין 69 | RP58/RG0/IC1 — Remappable pin / input capture 1 / I/O |
| פין 70 | RP59/RG1/IC2 — Remappable pin / input capture 2 / I/O |
| פין 71 | RP70/RG2 — Remappable pin / I/O |
| פין 72 | RP71/RG3 — Remappable pin / I/O |
| פין 73 | RP65/RG4/CN17 — Remappable pin / I/O |
| פין 74 | RP66/RG5 — Remappable pin / I/O |
| פין 75 | RP67/RG6 — Remappable pin / I/O |
| פין 76 | RP72/RG7 — Remappable pin / I/O |
| פין 77 | RP73/RG8 — Remappable pin / I/O |
| פין 78 | AVDD — Analog power supply for ADC |
| פין 79 | AVSS — Analog ground |
| פין 80 | VCAP/VDDCORE — Internal core regulator capacitor connection |
יישומים טיפוסיים
DSPIC33FJ64MC508T-I/PT מתאים עבור 6 יישוםs: Brushless DC (BLDC) Motor Control, Digital Power Supplies and PFC, Solar Inverters and Renewable Energy, Switched Reluctance and Induction Motor Drives, Industrial Automation and Motion Systems, Audio Signal Processing and DSP Embedded Systems.
Brushless DC (BLDC) Motor Control
The DSPIC33FJ64MC508T-I/PT is purpose-built by Microchip for BLDC motor control: its dedicated motor-control PWM module generates complementary outputs with programmable dead-time insertion and fault shutdown, while the fast 10-bit ADC synchronizes sampling to the PWM period for accurate phase-current measurement. At 40 MIPS with single-cycle MAC instructions, the DSC executes field-oriented control (FOC) or sensorless trapezoidal algorithms with control-loop bandwidths well above typical motor time constants. In practice the device drives a three-phase inverter via gate drivers, reading Hall sensors or back-EMF through the ADC and comparator inputs. The 64KB FLASH accommodates FOC plus communication stacks, and the pin-compatible upgrade path to the 256MC510 leaves headroom for future feature growth without PCB rework.
מומלץ
Digital Power Supplies and PFC
Digital power conversion benefits directly from the DSPIC33FJ64MC508T-I/PT parameter set: the motor-control PWM peripherals run at switching frequencies into the hundreds of kilohertz with complementary outputs, dead-time, and current-limit fault inputs, while the high-speed 10-bit ADC samples inductor current and output voltage synchronized to the PWM cycle. The 40 MIPS core with DSP multiply-accumulate support closes voltage/current loops for power factor correction (PFC), LLC, and phase-shifted full-bridge topologies with PID or predictive control. Operating from a 3.3V rail across -40C to +85C suits industrial power systems. Firmware fits in 64KB FLASH including PFC plus LLC stages, and ICSP programming allows control-loop firmware updates in production without re-soldering the controller.
מומלץ
Solar Inverters and Renewable Energy
Solar micro-inverters and string-inverter control stages require exactly the DSPIC33FJ64MC508T-I/PT combination: high-resolution synchronized PWM for the inverter bridge, fast ADC sampling of DC-link and grid waveforms, and DSP-class math throughput for MPPT (maximum power point tracking) algorithms plus grid-synchronization (PLL) software at 40 MIPS. The internal PLL derives 40 MIPS operation from a low-cost crystal, reducing bill-of-material cost in cost-sensitive solar electronics. The industrial -40C to +85C range and 3V-3.6V supply match outdoor inverter environments, and the 80-TQFP (12x12 mm) surface-mount package supports compact power-stage PCBs. The 64KB FLASH holds MPPT, inverter control, and communication code with headroom; migration to DSPIC33FJ256MC510T-I/PF covers advanced grid codes.
מומלץ
Switched Reluctance and Induction Motor Drives
Microchip explicitly targets single and three-phase induction and switched reluctance (SR) motor applications with the dsPIC33F Motor Control family, and the DSPIC33FJ64MC508T-I/PT delivers the required peripherals: multiple complementary PWM outputs with dead-time control suit SR phase excitation, while ADC-triggered sampling supports rotor-position estimation from current signatures. The 40 MIPS, 16-bit core with DSP instructions runs slip-compensated V/f and sensorless vector control for induction machines in appliances, pumps, fans, and HVAC compressors. The on-chip UART, SPI, and I2C interfaces handle speed commands and diagnostics. With 64KB FLASH and 8KB RAM, complete drive firmware including communications fits comfortably, and the same footprint scales to the 256KB DSPIC33FJ256MC510T-I/PF for premium drive platforms.
מומלץ
Industrial Automation and Motion Systems
In factory automation nodes, the DSPIC33FJ64MC508T-I/PT serves both as a motion-control engine and a system coordinator. The 40 MIPS core executes coordinated multi-axis stepping or servo loops using the motor-control PWM and quadrature-encoder interface (QEA/QEB, INDX) inputs, while UART, SPI, and I2C ports link to drives, sensors, and higher-level controllers such as PLCs or industrial Ethernet modules. The 21 I/O ports with peripheral remap (RP) let firmware route digital functions to optimal pins, simplifying PCB routing in dense control cards. The -40C to +85C industrial rating, 3.3V operation, and ICSP field-programmability suit remote or long-life installations. The 64KB FLASH budget supports state machines, control loops, and MODBUS-style protocol stacks with room for OTA bootloaders.
מומלץ
Audio Signal Processing and DSP Embedded Systems
Beyond motion and power, the dsPIC33F DSP engine makes the DSPIC33FJ64MC508T-I/PT effective in cost-sensitive embedded DSP roles: single-cycle 16x16 MAC with dual 40-bit accumulators and DSP addressing modes enable audio filtering, FFT-based analysis, sensor fusion, and digital control of actuators at sample rates of tens of kilohertz. The on-chip 10-bit ADC digitizes microphone or sensor inputs, and SPI/I2C interfaces connect to external audio codecs or data converters when higher resolution is needed. The 3.3V single supply and 80-TQFP (12x12 mm) package fit compact embedded modules, and 64KB FLASH stores filter coefficient sets and application firmware. Where designers need only general-purpose control without the MC-series PWM, the pin-compatible DSPIC33FJ64GP708A-I/PT offers the same core and footprint.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור DSPIC33FJ64MC508T-I/PT — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | DSPIC33FJ64MC508A-I/PT | DSPIC33FJ128MC508A-I/PT | DSPIC33FJ256MC510T-I/PF | DSPIC33FJ64GP708A-I/PT | DSPIC33FJ256GP510T-I/PT |
|---|---|---|---|---|---|---|
| Package | 80-TQFP (12x12 mm) | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP - same footprint | 80-TQFP (12x12 mm) - same | 80-TQFP - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Performance | 40 MIPS (16-bit dsPIC33F) | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Program Memory (FLASH) | 64KB | 64KB | 128KB | 256KB | 64KB | 256KB |
| RAM | 8KB | 8KB | 16KB | 30KB | 8KB | 30KB |
| Motor-Control PWM | Yes (MC series, dead-time insertion) | Yes (MC series) | Yes (MC series) | Yes (MC series) | No (GP variant) | No (GP variant) |
| 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 | 3 V to 3.6 V |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
מבדילים עיקריים
- Errata-free A-step silicon available as direct replacement (לעומתDSPIC33FJ64MC508A-I/PT)
- 64KB FLASH keeps cost down in the motor-control family (לעומתDSPIC33FJ256MC510T-I/PF)
- Dedicated motor-control PWM with dead-time insertion (לעומתDSPIC33FJ64GP708A-I/PT)
- In-family memory scaling without PCB rework (לעומתDSPIC33FJ128MC508A-I/PT)
הערות תכנון
The dsPIC33F core is supplied by an internal regulator: connect the specified low-ESR tantalum/ceramic capacitor on the VCAP/VDDCORE pin (pin 80) as close to the pin as possible - do not feed an external core supply. All VDD/VSS pairs (multiple pairs on the 80-TQFP) must each have a 0.1uF ceramic decoupling capacitor; AVDD/AVSS (pins 78/79) power the ADC and should be filtered with an RC or ferrite from the digital 3.3V rail to preserve analog accuracy.
Bring the ICSP programming pair (PGC/PGD) and MCLR to a standard 5-pin header (MCLR, VDD, GND, PGC, PGD) so MPLAB X with PICkit/ICD/SNAP can program and debug in-circuit. Keep the primary oscillator (OSC1/OSC2) crystal traces short and guarded by ground; if the secondary 32.768kHz oscillator is used for RTCC, route it away from PWM traces. Peripheral remap (RP) pins let you assign UART/SPI functions to convenient physical pins - finalize the PPS map before layout freeze.
Motor-control PWM outputs drive inverter gate stages: always enable dead-time insertion and the fault inputs (OCFA/OCFB) before live testing, and verify the PWM polarity settings match the gate driver logic. Replacing the part with the 508A revision later is pin-compatible, but check the family migration notes for ADC/clock errata fixes that can change timing-sensitive code. Do not exceed the 3.6V absolute supply; there is no 5V tolerance on I/O in this family.
Estimated: at 40 MIPS with all peripherals active, core current is on the order of tens of milliamps, giving ~0.1-0.2W dissipation in the 80-TQFP; with a typical theta_JA near 50 C/W this yields a junction rise of roughly 5-10 C over ambient - no heatsink or thermal pad is required. Standard 80-TQFP land pattern with recommended trace widths is sufficient; verify against the latest datasheet electrical characteristics for your actual clock configuration.
מידע על תאימות
Distributor listings identify the package as lead-free (PLASTIC, LEAD FREE per digchip spec summary). RoHS status inferred from standard Microchip I/PT industrial lead-free offering; REACH and conflict-minerals status not stated in provided data.
