MC56F84786VLK - 32-bit DSC, 256KB Flash, 100MHz | NXP | Motor Control
Référence : MC56F84786VLK ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $16.85 | $168,50 |
| 100 | $14.92 | $1 492,00 |
| 500 | $13.18 | $6 590,00 |
| 1 000 | $11.65 | $11 650,00 |
MC56F84786VLK Présentation
A DSC (digital signal controller) is a hybrid between a microcontroller and a DSP - it combines deterministic control peripherals (PWM timers, ADCs, quadrature decoders) with a DSP-style datapath that can compute fractional arithmetic and single-cycle math operations such as matrix multiplies and FFT stages. The 56800EX core executes 32-bit instructions and provides parallel memory moves and hardware DO loops. In the broader taxonomy, the MC56F84786VLK belongs to the family of microcontrollers and DSPs, specifically the DSC (digital signal controller) sub-class used heavily in motor control and digital power.
Key features include up to 24 PWM channels with input capture capability, a Cyclic Redundancy Check (CRC) generator, on-chip 3.3 V LDO regulator, and a wide operating voltage range. The 256 KB Flash and substantial SRAM enable table-driven control loops and field-oriented control (FOC) firmware without external memory. Communication peripherals include CAN, SPI, UART, and I2C, supporting industrial networking and motor feedback loops.
The 56800EX architecture pairs a 32-bit RISC-style control unit with dual Harvard-style memories, supporting fractional arithmetic natively. The integrated DMA controller moves ADC sample data and PWM update tables between memory and peripherals without CPU intervention, which is critical for closed-loop control rates above 20 kHz. The high-resolution PWM module enables switching frequencies above 100 kHz for digital power converters.
Typical applications include variable-frequency drives (VFDs) for industrial motors, brushless DC (BLDC) and permanent-magnet synchronous motor (PMSM) controllers, solar inverters, and switched-mode power supplies. The combination of 100 MHz processing, dedicated motor-control peripherals, and 256 KB Flash makes the MC56F84786VLK a fit for mid-power drives up to several kW.
When designing with this device, ensure the operating voltage and crystal/oscillator selection match the 56800EX core requirements. Decoupling must include 100 nF X7R ceramic capacitors placed as close as possible to every VDD/VSS pair, plus bulk capacitors on the 3.3 V LDO output. The 80-pin LQFP exposes most DSC peripherals; verify pin assignment against the datasheet before laying out the PCB.
This page synthesizes distributor pricing, drop-in LQFP-80 alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers select the right NXP DSC for motor-control and digital-power designs.
Alternatives de remplacement direct pour MC56F84786VLK — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MC56F84786VLK (même facteur de forme et même empreinte) — différant par Core Architecture.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MC56F84585VLK
✅ Remplacement direct✓ En stock
$5.3 / unité
Voir la fiche technique →MC56F84766VLK
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC56F84786VLK Valeurs maximales et caractéristiques électriques
| Core Architecture | 56800EX 32-bit DSC |
| Core Frequency | 100 MHz (100 MIPS) |
| Program Memory (Flash) | 256 KB (256K x 8) |
| Operating Voltage Range | 3.0 V to 3.6 V |
| Boîtier | 80-LQFP (12x12 mm) |
| Type de montage | Surface Mount |
| Plage de température de fonctionnement | -40C to +105C (industrial) |
| ADC | 12-bit, multiple channels |
| PWM Channels | Up to 24 (with input capture) |
| DMA Controller | Yes |
| Communication Peripherals | CAN, SPI, UART, I2C |
| On-chip Regulator | 3.3 V LDO |
| CRC Generator | Yes |
| Statut RoHS | Compliant |
| Niveau MSL | 3 (168 hours) |
Configuration des broches de MC56F84786VLK
| Broche 1 | VDD — Digital supply (3.3 V) |
| Broche 2 | VSS — Ground |
| Broche 3 | VDDA — Analog supply (3.3 V) |
| Broche 4 | VSSA — Analog ground |
| Broche 5 | GPIO/TXD0 — General I/O / UART0 transmit |
| Broche 6 | GPIO/RXD0 — General I/O / UART0 receive |
| Broche 7 | GPIO/PWM0A — PWM channel 0 output A |
| Broche 8 | GPIO/PWM0B — PWM channel 0 output B |
| Broche 9 | GPIO/PWM1A — PWM channel 1 output A |
| Broche 10 | GPIO/PWM1B — PWM channel 1 output B |
| Broche 11 | GPIO/ANA0 — Analog input / GPIO |
| Broche 12 | GPIO/ANA1 — Analog input / GPIO |
| Broche 13 | GPIO/ANA2 — Analog input / GPIO |
| Broche 14 | GPIO/ANA3 — Analog input / GPIO |
| Broche 15 | VSS — Ground |
| Broche 16 | VDD — Digital supply (3.3 V) |
| Broche 17 | GPIO/PWM2A — PWM channel 2 output A |
| Broche 18 | GPIO/PWM2B — PWM channel 2 output B |
| Broche 19 | GPIO/PWM3A — PWM channel 3 output A |
| Broche 20 | GPIO/PWM3B — PWM channel 3 output B |
| Broche 21 | GPIO/ANA4 — Analog input / GPIO |
| Broche 22 | GPIO/ANA5 — Analog input / GPIO |
| Broche 23 | GPIO/ANA6 — Analog input / GPIO |
| Broche 24 | GPIO/ANA7 — Analog input / GPIO |
| Broche 25 | VSS — Ground |
| Broche 26 | VDD — Digital supply (3.3 V) |
| Broche 27 | GPIO/PWM4A — PWM channel 4 output A |
| Broche 28 | GPIO/PWM4B — PWM channel 4 output B |
| Broche 29 | GPIO/PWM5A — PWM channel 5 output A |
| Broche 30 | GPIO/PWM5B — PWM channel 5 output B |
| Broche 31 | GPIO — General purpose I/O |
| Broche 32 | GPIO — General purpose I/O |
| Broche 33 | GPIO — General purpose I/O |
| Broche 34 | GPIO — General purpose I/O |
| Broche 35 | GPIO/SS0 — SPI0 slave select / GPIO |
| Broche 36 | GPIO/MISO0 — SPI0 MISO / GPIO |
| Broche 37 | GPIO/MOSI0 — SPI0 MOSI / GPIO |
| Broche 38 | GPIO/SCLK0 — SPI0 clock / GPIO |
| Broche 39 | VSS — Ground |
| Broche 40 | VDD — Digital supply (3.3 V) |
| Broche 41 | GPIO/CANRX — CAN receive / GPIO |
| Broche 42 | GPIO/CANTX — CAN transmit / GPIO |
| Broche 43 | GPIO/SDA — I2C data / GPIO |
| Broche 44 | GPIO/SCL — I2C clock / GPIO |
| Broche 45 | GPIO/TXD1 — UART1 transmit / GPIO |
| Broche 46 | GPIO/RXD1 — UART1 receive / GPIO |
| Broche 47 | GPIO — General purpose I/O |
| Broche 48 | GPIO — General purpose I/O |
| Broche 49 | VSS — Ground |
| Broche 50 | VDD — Digital supply (3.3 V) |
| Broche 51 | GPIO/PWM6A — PWM channel 6 output A |
| Broche 52 | GPIO/PWM6B — PWM channel 6 output B |
| Broche 53 | GPIO/PWM7A — PWM channel 7 output A |
| Broche 54 | GPIO/PWM7B — PWM channel 7 output B |
| Broche 55 | GPIO/PWM8A — PWM channel 8 output A |
| Broche 56 | GPIO/PWM8B — PWM channel 8 output B |
| Broche 57 | GPIO — General purpose I/O |
| Broche 58 | GPIO — General purpose I/O |
| Broche 59 | VSS — Ground |
| Broche 60 | VDD — Digital supply (3.3 V) |
| Broche 61 | GPIO/XTAL — Crystal oscillator pin |
| Broche 62 | GPIO/EXTAL — Crystal oscillator pin |
| Broche 63 | GPIO/RESET — Reset input (active low) |
| Broche 64 | GPIO/TCLK — Test clock / GPIO |
| Broche 65 | GPIO/TDI — JTAG data in |
| Broche 66 | GPIO/TDO — JTAG data out |
| Broche 67 | GPIO/TMS — JTAG mode select |
| Broche 68 | GPIO/TCK — JTAG clock |
| Broche 69 | GPIO — General purpose I/O |
| Broche 70 | GPIO — General purpose I/O |
| Broche 71 | VSS — Ground |
| Broche 72 | VDD — Digital supply (3.3 V) |
| Broche 73 | GPIO — General purpose I/O |
| Broche 74 | GPIO — General purpose I/O |
| Broche 75 | GPIO/FAULT0 — Fault input 0 |
| Broche 76 | GPIO/FAULT1 — Fault input 1 |
| Broche 77 | GPIO — General purpose I/O |
| Broche 78 | GPIO — General purpose I/O |
| Broche 79 | VSS — Ground |
| Broche 80 | VDD — Digital supply (3.3 V) |
Applications typiques
MC56F84786VLK convient pour 6 applications: Variable-Frequency Drives (VFDs), Brushless DC (BLDC) and PMSM Motor Control, Digital Power Converters and SMPS, Solar Inverters and Power Conversion, Industrial Servo and Motion Control, Automotive Motor Control and Body Electronics.
Variable-Frequency Drives (VFDs)
Industrial motor drives use the MC56F84786VLK to execute field-oriented control (FOC) loops on three-phase AC induction and permanent-magnet synchronous motors. The 56800EX core's fractional arithmetic and 100 MIPS throughput execute Park/Clarke transforms and proportional-integral (PI) loops within sub-microsecond control periods. The on-chip 12-bit ADC samples motor phase currents at the PWM switching rate, while up to 24 PWM channels drive the three-phase inverter IGBT/MOSFET bridge. The 256 KB Flash fits comprehensive VFD firmware including state machines, protection algorithms, and serial communication stacks (Modbus, CANopen).
Recommandé
Brushless DC (BLDC) and PMSM Motor Control
Sensorless and sensored BLDC/PMSM motor controllers benefit from the MC56F84786VLK's 100 MHz execution rate and dedicated motor-control peripherals. The quadrature decoder and input-capture blocks handle Hall-sensor or encoder feedback, while the DMA controller moves ADC sample data to the control loop without CPU intervention. The 32-bit 56800EX core executes single-cycle math operations required for sinusoidal commutation and torque-ripple reduction. The 80-LQFP exposes enough pins to drive a three-phase inverter plus auxiliary feedback signals without external multiplexing.
Recommandé
Digital Power Converters and SMPS
Switched-mode power supplies (SMPS) and digital-power converters leverage the MC56F84786VLK's high-resolution PWM (HRPWM) capable of switching frequencies above 100 kHz. The 56800EX core implements digital control loops for voltage-mode and current-mode control, including type-III compensation networks at sample rates exceeding 200 kHz. The 256 KB Flash supports multi-mode firmware (PFC + LLC or PFC + phase-shifted full bridge) in a single controller. Tightly-coupled analog comparators and 12-bit ADC deliver sub-microsecond fault response critical for power-supply protection.
Recommandé
Solar Inverters and Power Conversion
Photovoltaic inverters use the MC56F84786VLK to execute MPPT (maximum power point tracking) algorithms and grid-tie control loops, including anti-islanding protection per IEEE 1547. The 56800EX core's single-cycle fractional math accelerates perturb-and-observe or incremental-conductance MPPT, while the DMA controller streams ADC data without interrupting the core. CAN and UART peripherals talk to panel-level monitoring and to the grid synchronization module. The wide operating temperature range (-40C to +105C) makes the device suitable for outdoor inverter installations.
Recommandé
Industrial Servo and Motion Control
Multi-axis servo drives and motion controllers use the MC56F84786VLK to execute high-rate position, velocity, and current loops typical of CNC machines and robotics. The on-chip 12-bit ADC and PWM channels handle feedback and drive signals for one or more axes, while the controller coordinates multi-axis motion through CAN or EtherCAT (via external PHY). The 56800EX core's parallel moves and DO loops accelerate spline interpolation and PID control at 8-16 kHz loop rates. With 256 KB Flash, the part supports comprehensive motion firmware including S-curve profiling and feed-forward compensation.
Recommandé
Automotive Motor Control and Body Electronics
Automotive applications including electric power steering (EPS), transmission solenoids, pump/fan controllers, and body-comfort modules use the MC56F84786VLK to drive small to medium brushless motors. The 56800EX core executes automotive-grade motor-control firmware including field-weakening, MTPA (maximum torque per ampere), and limp-home strategies. The 80-LQFP package is qualified for under-hood environments where ambient temperature can reach 105C. CAN peripheral integrates with the vehicle bus for diagnostic and torque-command communication per J1939.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC56F84786VLK — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MC56F84585VLK | MC56F84766VLK | MC56F8357VVFE |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 80-LQFP (12x12) | 80-LQFP (12x12) - same | 80-LQFP (12x12) - same | 144-LQFP - different |
| Core | 56800EX 32-bit DSC | 56800EX 32-bit DSC | 56800EX 32-bit DSC | 56800E 16-bit DSC |
| Core Frequency | 100 MHz (100 MIPS) | 100 MHz (100 MIPS) | 100 MHz (100 MIPS) | 60 MHz (60 MIPS) |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 12-bit |
| Operating Voltage | 3.0V to 3.6V | 3.0V to 3.6V | 3.0V to 3.6V | 3.0V to 3.6V |
Principaux différenciateurs
- Highest Flash density in the 56800EX 80-LQFP lineup (vs MC56F84766VLK)
- Faster 56800EX core compared to older 56800E parts (vs MC56F8357VVFE)
- Compact 80-pin package still exposes the full motor-control peripheral set (vs MC56F8357VVFE)
Notes de conception
The MC56F84786VLK requires a clean 3.3V supply with low noise for both the digital core (VDD/VSS pins, multiple pairs required) and the analog rail (VDDA/VSSA). Place a 100 nF X7R ceramic bypass capacitor as close as possible to every VDD pin, and a single bulk 10 uF ceramic or tantalum capacitor near the package. The on-chip 3.3V LDO requires its input rail to be within the datasheet limits; add a ferrite bead if the analog supply is derived from a switching regulator. Reference the NXP MC56F847XX datasheet hardware design chapter for analog-ground layout recommendations.
Decouple every VDD/VSS pair with 100 nF X7R ceramic placed within 2 mm of the respective pins. For VDDA/VSSA, use a separate analog ground pour tied to the digital ground at a single point (star-ground) near the voltage regulator. Route high-frequency PWM outputs away from the analog inputs to avoid capacitive coupling into the ADC sample-and-hold. Keep the crystal traces short and symmetric, surrounded by a grounded guard ring, to minimize EMI and clock jitter at 100 MHz operation.
Estimated: With theta_JA of approximately 35 C/W (80-LQFP, JEDEC 4-layer board) and typical 200 mW dissipation at 100 MHz, the junction temperature rises about 7 C above ambient. In a sealed enclosure at 85 C ambient, junction reaches roughly 92 C, well within the 105 C industrial limit. For designs operating at the temperature ceiling, expand the copper pour under the exposed pad (where present) or add thermal vias to the inner layers. Measure actual dissipation with a current probe on the VDD rail during worst-case firmware activity.
Do not leave unused GPIO pins floating; configure them as outputs or enable the internal pull-up. Configure the JTAG/TDI/TDO/TMS/TCK pins per the NXP recommended sequence to avoid inadvertently entering boundary-scan mode at reset. Use the DMA controller for ADC-to-memory transfers to keep the CPU available for control-loop calculations. Always validate the firmware memory footprint (Flash + RAM) against the 256 KB Flash size before committing to production; segmenting large state tables may be required for some FOC implementations.
Informations de conformité
RoHS compliant per NXP product page. The -40C to +105C industrial operating range is not AEC-Q100 qualified; NXP offers separate automotive-grade variants in the same family for vehicle applications.