DSPIC33FJ64MC508T-I/PT - 16-bit DSC, 40 MIPS, 64KB Flash | Microchip
MPN: DSPIC33FJ64MC508T-I/PT ✓ Hoạt độngDSPIC33FJ64MC508T-I/PT Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho DSPIC33FJ64MC508T-I/PT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với DSPIC33FJ64MC508T-I/PT (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, RAM, ADC, Core Architecture.
DSPIC33FJ64MC508A-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ128MC508A-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33FJ64MC506A-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ256MC510T-I/PF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ64GP708A-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ256GP510T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ64MC508T-I/PT Tỷ lệ tối đa & tính chất điện
| Core | dsPIC33F, 16-bit |
| Max CPU Speed | 40 MIPS |
| Program Memory | 64KB (64K x 8) FLASH |
| RAM | 8KB |
| Điện áp cung cấp | 3 V to 3.6 V |
| Nhiệt độ hoạt động | -40C to +85C |
| Hộp | 80-TQFP (12x12 mm) |
| Kiểu lắp đặt | 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 |
Cấu hình chân DSPIC33FJ64MC508T-I/PT
| Chân 1 | MCLR — Master clear reset input / programming voltage |
| Chân 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / ADC positive reference / I/O |
| Chân 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / ADC negative reference / I/O |
| Chân 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select / I/O |
| Chân 5 | AN3/INDX/CN5/RB3 — Analog input 3 / encoder index / I/O |
| Chân 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / encoder A / input capture 7 / I/O |
| Chân 7 | AN5/QEB/IC8/CN7/RB5 — Analog input 5 / encoder B / input capture 8 / I/O |
| Chân 8 | AN6/OCFA/UPDN/RTCC/RB6 — Analog input 6 / PWM fault A / I/O |
| Chân 9 | AN7/OCFB/PMA6/RB7 — Analog input 7 / PWM fault B / I/O |
| Chân 10 | VDD — Power supply (3V to 3.6V) |
| Chân 11 | VSS — Ground |
| Chân 12 | AN8/RP0/PWM1L1/RE0 — Analog input 8 / remappable pin / PWM1 low / I/O |
| Chân 13 | AN9/RP1/PWM1H1/RE1 — Analog input 9 / remappable pin / PWM1 high / I/O |
| Chân 14 | AN10/RP2/PWM1L2/RE2 — Analog input 10 / remappable pin / PWM2 low / I/O |
| Chân 15 | AN11/RP3/PWM1H2/RE3 — Analog input 11 / remappable pin / PWM2 high / I/O |
| Chân 16 | AN12/RP68/PWM2L1/RE4 — Analog input 12 / remappable pin / PWM / I/O |
| Chân 17 | AN13/RP69/PWM2H1/RE5 — Analog input 13 / remappable pin / PWM / I/O |
| Chân 18 | AN14/RP70/PWM2L2/RE6 — Analog input 14 / remappable pin / PWM / I/O |
| Chân 19 | AN15/RP71/PWM2H2/RE7 — Analog input 15 / remappable pin / PWM / I/O |
| Chân 20 | VSS — Ground |
| Chân 21 | VDD — Power supply |
| Chân 22 | TMS — JTAG test mode select |
| Chân 23 | TCK — JTAG test clock |
| Chân 24 | TDI — JTAG test data in |
| Chân 25 | TDO — JTAG test data out |
| Chân 26 | SOSCI/CN1/RB61 — Secondary oscillator input / change notification / I/O |
| Chân 27 | SOSCO/T1CK/CN0/RA4 — Secondary oscillator output / Timer1 clock / I/O |
| Chân 28 | OSC1/CLKI/CN30/RA2 — Primary oscillator input / external clock input |
| Chân 29 | OSC2/CLKO/RC15 — Primary oscillator output / clock output |
| Chân 30 | VSS — Ground |
| Chân 31 | VDD — Power supply |
| Chân 32 | RP54/RF6 — Remappable pin / I/O |
| Chân 33 | RP43/RF2/U1RX — Remappable pin / UART1 receive / I/O |
| Chân 34 | RP55/RF7 — Remappable pin / I/O |
| Chân 35 | RP20/RF3/U1TX — Remappable pin / UART1 transmit / I/O |
| Chân 36 | VSS — Ground |
| Chân 37 | VDD — Power supply |
| Chân 38 | RP84/RF12/SCL1 — Remappable pin / I2C1 clock / I/O |
| Chân 39 | RP83/RF13/SDA1 — Remappable pin / I2C1 data / I/O |
| Chân 40 | RP44/RF4/U2RX — Remappable pin / UART2 receive / I/O |
| Chân 41 | RP45/RF5/U2TX — Remappable pin / UART2 transmit / I/O |
| Chân 42 | SCL2/IC4/RG6 — I2C2 clock / input capture / I/O |
| Chân 43 | SDA2/IC5/RG7 — I2C2 data / input capture / I/O |
| Chân 44 | U3TX/SDO2/RG8 — UART3 transmit / SPI2 data out / I/O |
| Chân 45 | VSS — Ground |
| Chân 46 | VDD — Power supply |
| Chân 47 | U3RX/SDI2/RG9 — UART3 receive / SPI2 data in / I/O |
| Chân 48 | RD8 — Digital I/O |
| Chân 49 | RD9 — Digital I/O |
| Chân 50 | RD10 — Digital I/O / motor-control PWM |
| Chân 51 | RD11 — Digital I/O / motor-control PWM |
| Chân 52 | RD12 — Digital I/O |
| Chân 53 | RD13 — Digital I/O |
| Chân 54 | RD14 — Digital I/O / input capture |
| Chân 55 | RD15 — Digital I/O / input capture |
| Chân 56 | VDD — Power supply |
| Chân 57 | VSS — Ground |
| Chân 58 | PWM1L3/RE8 — Motor-control PWM1 low / I/O |
| Chân 59 | PWM1H3/RE9 — Motor-control PWM1 high / I/O |
| Chân 60 | RP46/RF0/SDO1 — Remappable pin / SPI1 data out / I/O |
| Chân 61 | RP47/RF1/SDI1 — Remappable pin / SPI1 data in / I/O |
| Chân 62 | RP63/RF8/CN8 — Remappable pin / I/O |
| Chân 63 | RP64/RF9/CN9 — Remappable pin / I/O |
| Chân 64 | RP85/RF13/CN10 — Remappable pin / I/O |
| Chân 65 | RP56/RF10/CN11 — Remappable pin / I/O |
| Chân 66 | RP57/RF11/CN12 — Remappable pin / I/O |
| Chân 67 | VDD — Power supply |
| Chân 68 | VSS — Ground |
| Chân 69 | RP58/RG0/IC1 — Remappable pin / input capture 1 / I/O |
| Chân 70 | RP59/RG1/IC2 — Remappable pin / input capture 2 / I/O |
| Chân 71 | RP70/RG2 — Remappable pin / I/O |
| Chân 72 | RP71/RG3 — Remappable pin / I/O |
| Chân 73 | RP65/RG4/CN17 — Remappable pin / I/O |
| Chân 74 | RP66/RG5 — Remappable pin / I/O |
| Chân 75 | RP67/RG6 — Remappable pin / I/O |
| Chân 76 | RP72/RG7 — Remappable pin / I/O |
| Chân 77 | RP73/RG8 — Remappable pin / I/O |
| Chân 78 | AVDD — Analog power supply for ADC |
| Chân 79 | AVSS — Analog ground |
| Chân 80 | VCAP/VDDCORE — Internal core regulator capacitor connection |
Ứng dụng tiêu biểu
DSPIC33FJ64MC508T-I/PT phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DSPIC33FJ64MC508T-I/PT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Errata-free A-step silicon available as direct replacement (vsDSPIC33FJ64MC508A-I/PT)
- 64KB FLASH keeps cost down in the motor-control family (vsDSPIC33FJ256MC510T-I/PF)
- Dedicated motor-control PWM with dead-time insertion (vsDSPIC33FJ64GP708A-I/PT)
- In-family memory scaling without PCB rework (vsDSPIC33FJ128MC508A-I/PT)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
