MC56F82748VLH - 32-bit DSC, 56800EX, 64KB Flash, LQFP-64 | NXP
MPN: MC56F82748VLH ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $8.95 | $89.50 |
| 100 | $7.8 | $780.00 |
| 500 | $6.95 | $3,475.00 |
| 1,000 | $6.2 | $6,200.00 |
| 3,000 | $5.5 | $16,500.00 |
MC56F82748VLH Overview
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.
Drop-in alternatives for MC56F82748VLH — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MC56F82748VLH (same form factor and footprint) — differing in ADC, Operating Temperature, Package, RAM Size.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC56F82738VLH
✅ Drop-In📋 Reference alternative (not in catalog)
MC56F82748MLH
✅ Drop-In📋 Reference alternative (not in catalog)
MC56F82748VLH,557
✅ Drop-In📋 Reference alternative (not in catalog)
MC56F82748VLH Maximum Ratings & Electrical Characteristics
| 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 |
| Operating Temperature | -40C to +105C |
| Package | 64-pin LQFP (VLH), 10x10 mm |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
MC56F82748VLH Pin Configuration
| Pin 1 | VDDA — Analog supply voltage |
| Pin 2 | VSSA — Analog ground |
| Pin 3 | AN0 — Analog input channel 0 / ADC0 reference |
| Pin 4 | AN1 — Analog input channel 1 |
| Pin 5 | AN2 — Analog input channel 2 |
| Pin 6 | AN3 — Analog input channel 3 |
| Pin 7 | AN4 — Analog input channel 4 |
| Pin 8 | AN5 — Analog input channel 5 |
| Pin 9 | AN6 — Analog input channel 6 |
| Pin 10 | AN7 — Analog input channel 7 |
| Pin 11 | AN8 — Analog input channel 8 |
| Pin 12 | AN9 — Analog input channel 9 |
| Pin 13 | AN10 — Analog input channel 10 |
| Pin 14 | AN11 — Analog input channel 11 |
| Pin 15 | AN12 — Analog input channel 12 |
| Pin 16 | AN13 — Analog input channel 13 |
| Pin 17 | AN14 — Analog input channel 14 |
| Pin 18 | AN15 — Analog input channel 15 |
| Pin 19 | DAC0 — 12-bit DAC output 0 |
| Pin 20 | DAC1 — 12-bit DAC output 1 |
| Pin 21 | OPAP — Op-amp A positive input |
| Pin 22 | OPAM — Op-amp A negative input |
| Pin 23 | OPAO — Op-amp A output |
| Pin 24 | OPBP — Op-amp B positive input |
| Pin 25 | OPBM — Op-amp B negative input |
| Pin 26 | OPBO — Op-amp B output |
| Pin 27 | CMP0_IN — Comparator 0 input |
| Pin 28 | CMP1_IN — Comparator 1 input |
| Pin 29 | PWM_A0 — PWM channel A output 0 |
| Pin 30 | PWM_A1 — PWM channel A output 1 |
| Pin 31 | PWM_B0 — PWM channel B output 0 |
| Pin 32 | PWM_B1 — PWM channel B output 1 |
| Pin 33 | PWM_C0 — PWM channel C output 0 |
| Pin 34 | PWM_C1 — PWM channel C output 1 |
| Pin 35 | PWM_D0 — PWM channel D output 0 |
| Pin 36 | PWM_D1 — PWM channel D output 1 |
| Pin 37 | TXD0 — SCI0 transmit |
| Pin 38 | RXD0 — SCI0 receive |
| Pin 39 | TXD1 — SCI1 transmit |
| Pin 40 | RXD1 — SCI1 receive |
| Pin 41 | SCL — I2C clock |
| Pin 42 | SDA — I2C data |
| Pin 43 | MOSI — QSPI master-out slave-in |
| Pin 44 | MISO — QSPI master-in slave-out |
| Pin 45 | SCK — QSPI clock |
| Pin 46 | SS — QSPI slave select |
| Pin 47 | CAN_TX — CAN-FD transmit |
| Pin 48 | CAN_RX — CAN-FD receive |
| Pin 49 | GPIO0 — General-purpose I/O 0 |
| Pin 50 | GPIO1 — General-purpose I/O 1 |
| Pin 51 | GPIO2 — General-purpose I/O 2 |
| Pin 52 | GPIO3 — General-purpose I/O 3 |
| Pin 53 | GPIO4 — General-purpose I/O 4 |
| Pin 54 | GPIO5 — General-purpose I/O 5 |
| Pin 55 | RESET_b — Active-low reset input |
| Pin 56 | JTAG_TMS — JTAG test mode select |
| Pin 57 | JTAG_TCK — JTAG test clock |
| Pin 58 | JTAG_TDO — JTAG test data out |
| Pin 59 | JTAG_TDI — JTAG test data in |
| Pin 60 | EXTAL — External crystal/clock input |
| Pin 61 | XTAL — Crystal amplifier output |
| Pin 62 | VDD — Digital supply voltage |
| Pin 63 | VSS — Digital ground |
| Pin 64 | VPP — Flash programming voltage (factory use) |
Typical Applications
MC56F82748VLH is suitable for 7 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for MC56F82748VLH — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
Key Differentiators
- 56800EX core with single-cycle MAC (vs MC56F82738VLH)
- Integrated analog front-end reduces BOM (vs MC56F82746VLF)
- 64-pin LQFP offers full peripheral count (vs MC56F82743VFM)
Design Notes
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.
Compliance Information
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.
