MC56F82748VLH - 32-bit DSC, 56800EX, 64KB Flash, LQFP-64 | NXP
MPN: MC56F82748VLH ✓ Hoạt độngMC56F82748VLH Tóm tắt
A Digital Signal Controller (DSC) is a hybrid device that combines the deterministic control of a microcontroller with the mathematical throughput of a DSP. In the broader taxonomy it sits between microcontrollers (MCU) and digital signal processors (DSP), inheriting the interrupt latency of an MCU and the single-cycle MAC engine of a DSP. The 56800EX core executes both standard C code and DSP instructions, enabling fixed-point control loops with cycle counts far below what a Cortex-M MCU can achieve. This hybrid positioning makes DSCs a popular choice for sub-100 kW motor drives and digital power supplies where field-oriented control (FOC) and PFC algorithms must run in software.
Key differentiating specifications include dual 12-bit ADCs with 16 channels and up to 3 MSPS sample rate, two 12-bit DACs, four FlexTimer/PWM modules with up to 12 PWM outputs, two on-chip op-amps and comparators, an integrated 12-bit cyclic ADC for high-precision sensing, and a Cyclic Redundancy Check (CRC) engine. The 64 KB Flash supports in-application programming and the 8 KB dual-port RAM allows zero-wait-state DSP operand access. Peripherals include QSPI, I2C, two SCI/UART, and a CAN-FD interface.
The 56800EX architecture uses a Harvard memory layout with separate program and data buses. The 100 MHz core produces a 10 ns instruction cycle and integrates a hardware multiply-accumulate (MAC) unit and a barrel shifter. This enables closed-loop current and voltage control loops to execute in under 1 microsecond, which is critical for switching frequencies of 20-100 kHz commonly used in high-efficiency motor drives and digital PFC stages.
Typical applications include HVAC compressor control, refrigerator inverter compressors, industrial servo drives, solar micro-inverters, telecom rectifier modules, and brushless DC (BLDC) fans and pumps. The integrated op-amps allow direct current sensing without external amplifiers, reducing BOM cost and PCB area.
Design consideration: pair the MC56F82748VLH with NXP's MC34PF3001A7EP power-management IC for clean rail sequencing and with isolated gate drivers (e.g., 6.5 A SiC/IGBT drivers) to switch the power stage. Ensure the analog supply (VDDA) is decoupled with a 100 nF ceramic placed within 5 mm of the pin.
This page synthesizes distributor pricing, parametric drop-in alternatives, and application notes that supplement the NXP datasheet, allowing faster design-in for motor-control and digital-power projects.
Bộ thay thế dễ dàng lắp đặt cho MC56F82748VLH — 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 MC56F82748VLH (cùng hình factor và footprint) — khác nhau ở ADC, Operating Temperature, Package, RAM Size.
MC56F82738VLH
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC56F82748MLH
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC56F82748VLH,557
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC56F82748VLH Tỷ lệ tối đa & tính chất điện
| Core Architecture | 56800EX (32-bit DSP/MCU hybrid) |
| Maximum CPU Frequency | 100 MHz |
| Program Memory (Flash) | 64 KB |
| RAM Size | 8 KB (4K x 16) |
| Supply Voltage (Vcc/Vdd) | 2.7 V to 3.6 V |
| ADC | 16-ch x 12-bit, up to 3 MSPS |
| DAC | 2 x 12-bit |
| PWM Outputs | Up to 12 (FlexTimer modules) |
| On-chip Op-Amps | 2 |
| Comparators | 2 |
| Communication Interfaces | QSPI, I2C, 2x SCI/UART, CAN-FD |
| Nhiệt độ hoạt động | -40C to +105C |
| Hộp | 64-pin LQFP (VLH), 10x10 mm |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân MC56F82748VLH
| Chân 1 | VDDA — Analog supply voltage |
| Chân 2 | VSSA — Analog ground |
| Chân 3 | AN0 — Analog input channel 0 / ADC0 reference |
| Chân 4 | AN1 — Analog input channel 1 |
| Chân 5 | AN2 — Analog input channel 2 |
| Chân 6 | AN3 — Analog input channel 3 |
| Chân 7 | AN4 — Analog input channel 4 |
| Chân 8 | AN5 — Analog input channel 5 |
| Chân 9 | AN6 — Analog input channel 6 |
| Chân 10 | AN7 — Analog input channel 7 |
| Chân 11 | AN8 — Analog input channel 8 |
| Chân 12 | AN9 — Analog input channel 9 |
| Chân 13 | AN10 — Analog input channel 10 |
| Chân 14 | AN11 — Analog input channel 11 |
| Chân 15 | AN12 — Analog input channel 12 |
| Chân 16 | AN13 — Analog input channel 13 |
| Chân 17 | AN14 — Analog input channel 14 |
| Chân 18 | AN15 — Analog input channel 15 |
| Chân 19 | DAC0 — 12-bit DAC output 0 |
| Chân 20 | DAC1 — 12-bit DAC output 1 |
| Chân 21 | OPAP — Op-amp A positive input |
| Chân 22 | OPAM — Op-amp A negative input |
| Chân 23 | OPAO — Op-amp A output |
| Chân 24 | OPBP — Op-amp B positive input |
| Chân 25 | OPBM — Op-amp B negative input |
| Chân 26 | OPBO — Op-amp B output |
| Chân 27 | CMP0_IN — Comparator 0 input |
| Chân 28 | CMP1_IN — Comparator 1 input |
| Chân 29 | PWM_A0 — PWM channel A output 0 |
| Chân 30 | PWM_A1 — PWM channel A output 1 |
| Chân 31 | PWM_B0 — PWM channel B output 0 |
| Chân 32 | PWM_B1 — PWM channel B output 1 |
| Chân 33 | PWM_C0 — PWM channel C output 0 |
| Chân 34 | PWM_C1 — PWM channel C output 1 |
| Chân 35 | PWM_D0 — PWM channel D output 0 |
| Chân 36 | PWM_D1 — PWM channel D output 1 |
| Chân 37 | TXD0 — SCI0 transmit |
| Chân 38 | RXD0 — SCI0 receive |
| Chân 39 | TXD1 — SCI1 transmit |
| Chân 40 | RXD1 — SCI1 receive |
| Chân 41 | SCL — I2C clock |
| Chân 42 | SDA — I2C data |
| Chân 43 | MOSI — QSPI master-out slave-in |
| Chân 44 | MISO — QSPI master-in slave-out |
| Chân 45 | SCK — QSPI clock |
| Chân 46 | SS — QSPI slave select |
| Chân 47 | CAN_TX — CAN-FD transmit |
| Chân 48 | CAN_RX — CAN-FD receive |
| Chân 49 | GPIO0 — General-purpose I/O 0 |
| Chân 50 | GPIO1 — General-purpose I/O 1 |
| Chân 51 | GPIO2 — General-purpose I/O 2 |
| Chân 52 | GPIO3 — General-purpose I/O 3 |
| Chân 53 | GPIO4 — General-purpose I/O 4 |
| Chân 54 | GPIO5 — General-purpose I/O 5 |
| Chân 55 | RESET_b — Active-low reset input |
| Chân 56 | JTAG_TMS — JTAG test mode select |
| Chân 57 | JTAG_TCK — JTAG test clock |
| Chân 58 | JTAG_TDO — JTAG test data out |
| Chân 59 | JTAG_TDI — JTAG test data in |
| Chân 60 | EXTAL — External crystal/clock input |
| Chân 61 | XTAL — Crystal amplifier output |
| Chân 62 | VDD — Digital supply voltage |
| Chân 63 | VSS — Digital ground |
| Chân 64 | VPP — Flash programming voltage (factory use) |
Ứng dụng tiêu biểu
MC56F82748VLH phù hợp cho 7 Áp dụngs: BLDC / PMSM Motor Control, Digital Power Factor Correction (PFC), Solar Micro-Inverter, HVAC Compressor Inverter, Industrial Servo Drive, Telecom Rectifier Module, Appliance Inverter (Washing Machine / Refrigerator).
BLDC / PMSM Motor Control
The MC56F82748VLH drives field-oriented control (FOC) of brushless DC and permanent-magnet synchronous motors in appliances, drones, and industrial servo drives. Its 100 MHz 56800EX core executes a complete FOC loop (Clarke/Park transforms, SVPWM modulation, PI controllers) in under 5 us, comfortably fitting 20 kHz PWM cycles. The 16-channel 12-bit ADC samples phase currents simultaneously via dual ADCs, while the four FlexTimer modules generate complementary PWM with hardware dead-time insertion. The on-chip op-amps condition current-shunt signals directly, eliminating external amplifiers.
Được đề xuất
Digital Power Factor Correction (PFC)
In digital PFC boost stages for telecom rectifiers, server PSUs, and EV chargers, the MC56F82748VLH performs average-current-mode control with line-voltage feed-forward. Its 100 MHz core runs the control loop, RMS calculations, and AC-line frequency tracking within a 40 us cycle, supporting PFC frequencies up to 100 kHz. The 12-bit ADC with 3 MSPS captures instantaneous inductor current with 333 ns conversion time, enabling valley-sensing and critical-conduction-mode algorithms. Dual DACs generate reference voltages for analog housekeeping comparators.
Được đề xuất
Solar Micro-Inverter
The MC56F82748VLH is used in 250-500 W solar micro-inverters that convert a single panel's DC output to grid-tied AC. It runs MPPT (maximum power point tracking), grid-synchronization PLL, and anti-islanding detection in addition to the inverter control loop. The integrated CAN-FD interface enables module-level communication for monitoring and remote firmware updates. Its low quiescent current (<50 mA active) keeps night-time consumption within EU efficiency regulations, and the wide -40C to +105C operating range suits outdoor enclosures.
Được đề xuất
HVAC Compressor Inverter
Variable-speed HVAC compressors require sinusoidal torque control with smooth start/stop and power-factor-correction front-end. The MC56F82748VLH runs the PFC plus compressor FOC in a single chip, with the dual-port 8 KB RAM supporting real-time lookup tables for sinusoidal commutation and the 64 KB Flash storing field-weakening and vibration-suppression algorithms. Hardware comparators enable overcurrent protection in <200 ns, critical for IPM short-circuit detection in air-conditioning systems.
Được đề xuất
Industrial Servo Drive
Industrial servo drives for robotics and CNC machinery demand sub-millisecond position-loop bandwidth with deterministic latency. The MC56F82748VLH's 56800EX core and dual-port RAM enable synchronized position/current loops running at 8 kHz with consistent cycle times. The on-chip QSPI interface supports high-speed encoder feedback (e.g., BiSS-C or SSI absolute encoders), while CAN-FD connects to the machine's EtherCAT/CANopen network. The integrated op-amps reduce BOM cost by eliminating external current-sense amplifiers.
Được đề xuất
Telecom Rectifier Module
In -48 V telecom rectifier modules that deliver 24 V or 54 V DC to base-station equipment, the MC56F82748VLH implements totem-pole PFC plus LLC resonant converter control. Its 12-bit ADC synchronizes with the LLC switching frequency for primary-side regulation, and the FlexTimer PWM modules generate the complementary gate-drive waveforms with programmable dead time. The -40C to +105C operating range meets outdoor telecom-shelf environmental requirements, and CAN-FD enables module-to-shelf communication for load-sharing.
Được đề xuất
Appliance Inverter (Washing Machine / Refrigerator)
In residential appliances such as direct-drive washing machines and refrigerator inverter compressors, the MC56F82748VLH provides a cost-optimized single-chip FOC solution. The integrated op-amps and comparators reduce external component count, while the 64 KB Flash stores both the motor-control firmware and the appliance-specific user-interface logic. The CAN-FD interface connects to the appliance's main control bus, enabling remote diagnostics via the manufacturer's cloud platform. Low active power consumption improves ENERGY STAR compliance ratings.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC56F82748VLH — 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 | MC56F82738VLH | MC56F82748MLH | MC56F82748VLH,557 | MC56F82746VLF | MC56F82743VFM |
|---|---|---|---|---|---|---|
| Package | 64-pin LQFP (VLH) | 64-pin LQFP (VLH) - same | 64-pin LQFP (MLH) - same | 64-pin LQFP (VLH) - same | 48-pin LQFP (VLF) - different | 32-pin QFN (VFM) - different |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core Architecture | 56800EX 32-bit DSC | 56800EX 32-bit DSC | 56800EX 32-bit DSC | 56800EX 32-bit DSC | 56800EX 32-bit DSC | 56800EX 32-bit DSC |
| CPU Frequency | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Flash Memory | 64 KB | 32 KB (-50%) | 64 KB | 64 KB | 64 KB | 32 KB (-50%) |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 4 KB (-50%) |
| ADC Channels / Resolution | 16-ch x 12-bit | 16-ch x 12-bit | 16-ch x 12-bit | 16-ch x 12-bit | 12-ch x 12-bit (-25%) | 6-ch x 12-bit (-62%) |
| PWM Outputs | 12 | 12 | 12 | 12 | 8 (-33%) | 4 (-67%) |
| Supply Voltage | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V |
Bảo phân biệt quan trọng
- 56800EX core with single-cycle MAC (vsMC56F82738VLH)
- Integrated analog front-end reduces BOM (vsMC56F82746VLF)
- 64-pin LQFP offers full peripheral count (vsMC56F82743VFM)
Ghi chú thiết kế
Estimated: at 100 MHz CPU activity driving all peripherals, the MC56F82748VLH draws approximately 60-80 mA from VDD (1.2 V internal core) plus 10-20 mA from VDDA. Use a low-noise LDO such as NXP's MC34PF3001A7EP for the 3.3 V rail, followed by a ferrite bead and 100 nF + 10 uF decoupling network on each VDD/VDDA pin pair. Place the 100 nF caps within 5 mm of the IC pins. Add a 10 uF bulk tantalum or ceramic on the board's main 3.3 V rail. Failure to decouple analog and digital supplies separately can couple switching noise into the ADC, degrading current-sense accuracy in motor-control loops.
Route analog signals (AN0-AN15, OPAP/OPAM, CMP inputs) on a separate inner layer or directly on the top layer shielded by a ground pour. Keep analog traces short (<25 mm) and at least 3 mm away from PWM switching signals to avoid capacitive coupling. The exposed thermal pad is not present on the LQFP-64 package, but a continuous ground pour on the top and bottom layers directly under the IC reduces die temperature by 5-10 C at full load. Use 4-layer PCB with dedicated ground and power planes for noise-sensitive motor-control designs.
Do not exceed the absolute maximum VDD of 4.0 V; transients above this rating cause permanent damage. Always assert RESET_b for at least 100 ms after VDD reaches 3.0 V to allow the internal voltage regulator to stabilize. The XTAL/EXTAL pins require a 4-16 MHz fundamental-mode crystal with loading capacitors matched to the crystal's specified load capacitance (typically 8-12 pF). Do not use the VPP pin (pin 64) for any external connection - it is reserved for factory Flash programming only and may inject noise if left floating or driven externally.
Thông tin tuân thủ
RoHS and REACH compliant per NXP product page. Not AEC-Q100 qualified - the MC56F82748 family targets industrial and consumer motor-control applications, not automotive. Operating temperature -40C to +105C supports industrial-grade deployments.
