MC56F8122VFAE - 16-bit DSC, 32KB Flash, 40MHz, 48-LQFP | NXP
MPN: MC56F8122VFAE ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $13.66 | $13.66 |
| 10 | $12.3 | $123.00 |
| 100 | $10.93 | $1,093.00 |
| 500 | $9.83 | $4,915.00 |
| 1,000 | $8.74 | $8,740.00 |
MC56F8122VFAE Overview
A digital signal controller is a hybrid class of MCU that merges a microcontroller's deterministic peripheral set and ease of use with a DSP's single-cycle MAC and Harvard bus architecture. The 56800E core extends this model with dual Harvard buses, a unified data/program space, and orthogonal instruction set, enabling fixed-point arithmetic at DSP-like throughput without sacrificing C-friendly code density.
Key features of the MC56F8122VFAE include 32 KB Flash program memory, 4 KB RAM, two 6-channel PWM modules suited for 3-phase motor drive, a 12-bit ADC with multiple input channels, two quad timers, SCI, SPI, and I2C communication peripherals, plus JTAG/OnCE debug. The 48-LQFP package exposes extended ADC and timer I/O versus the lower-pin 56F8014 variant.
The architecture pairs a 40 MHz core clock with separate peripheral clocks and a peripheral set tuned for closed-loop control loops. Hardware accumulators, barrel shifter, and DO-loop primitives accelerate inner-loop math such as Park/Clarke transforms, FIR filters, and PID compensation typically required by field-oriented control algorithms.
Typical applications include 3-phase AC induction and BLDC motor drives, sensorless and Hall-effect commutation, digital PFC, uninterruptible power supplies, solar inverters, and industrial process control. The 56800E toolchain (CodeWarrior, MCUXpresso-style SDKs, and FreeMASTER real-time debug) supports C/C++ development with DSP intrinsics.
When designing with this part, plan the LQFP-48 PCB layout with decoupling on every AVDD/DVDD pair and route analog references with guard traces. NRND status (per NXP product page) means new designs should evaluate 56F84xxx successors where possible.
Drop-in alternatives for MC56F8122VFAE — 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 MC56F8122VFAE (same form factor and footprint) — differing in ADC, Maximum Core Frequency, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC56F8322VFAE
✅ Drop-In📋 Reference alternative (not in catalog)
MC56F8123VFAE
✅ Drop-In📋 Reference alternative (not in catalog)
MC56F8014VFAE
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →MC56F8234VFAE
✅ Drop-In📋 Reference alternative (not in catalog)
MC56F8122VFAE Maximum Ratings & Electrical Characteristics
| Core | 56800E 16-bit DSC |
| Data Bus Width | 16 bit |
| Program Memory Size | 32 KB (16K x 16) Flash |
| RAM Size | 4 KB |
| Maximum Core Frequency | 60 MHz (up to 60 MIPS) |
| Operating Core Frequency (this SKU) | 40 MHz |
| Supply Voltage | 2.5 V / 3.3 V |
| ADC | 12-bit, multiple channels |
| PWM Modules | Two 6-channel PWM modules |
| Timers | Two Quad Timers |
| Communication Peripherals | SCI, SPI, I2C |
| Debug Interface | JTAG/OnCE |
| Package | 48-LQFP (7x7 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature Grade | Industrial |
| RoHS | Compliant (per NXP product page) |
| Lifecycle Status | NRND (Not Recommended for New Designs) |
MC56F8122VFAE Pin Configuration
| Pin 1 | VDDA — Analog supply voltage |
| Pin 2 | VSSA — Analog ground |
| Pin 3 | GPIO/TCLK — General I/O / Timer clock |
| Pin 4 | GPIO — General purpose I/O |
| Pin 5 | GPIO — General purpose I/O |
| Pin 6 | GPIO/PWM0 — PWM output 0 |
| Pin 7 | GPIO/PWM1 — PWM output 1 |
| Pin 8 | GPIO/PWM2 — PWM output 2 |
| Pin 9 | GPIO/PWM3 — PWM output 3 |
| Pin 10 | GPIO/PWM4 — PWM output 4 |
| Pin 11 | GPIO/PWM5 — PWM output 5 |
| Pin 12 | VDD — Digital supply voltage |
| Pin 13 | VSS — Digital ground |
| Pin 14 | GPIO/PWM0_AUX — Auxiliary PWM output |
| Pin 15 | GPIO/PWM1_AUX — Auxiliary PWM output |
| Pin 16 | GPIO/PWM2_AUX — Auxiliary PWM output |
| Pin 17 | GPIO/PWM3_AUX — Auxiliary PWM output |
| Pin 18 | GPIO/PWM4_AUX — Auxiliary PWM output |
| Pin 19 | GPIO/PWM5_AUX — Auxiliary PWM output |
| Pin 20 | GPIO — General purpose I/O |
| Pin 21 | GPIO/ANx — Analog input / GPIO |
| Pin 22 | GPIO/ANx — Analog input / GPIO |
| Pin 23 | GPIO/ANx — Analog input / GPIO |
| Pin 24 | GPIO/ANx — Analog input / GPIO |
| Pin 25 | GPIO/ANx — Analog input / GPIO |
| Pin 26 | GPIO/ANx — Analog input / GPIO |
| Pin 27 | GPIO/ANx — Analog input / GPIO |
| Pin 28 | GPIO/ANx — Analog input / GPIO |
| Pin 29 | VREFH — ADC high reference |
| Pin 30 | VREFL — ADC low reference |
| Pin 31 | GPIO/SDA — I2C data |
| Pin 32 | GPIO/SCL — I2C clock |
| Pin 33 | GPIO/SCLK — SPI clock |
| Pin 34 | GPIO/MOSI — SPI master out / slave in |
| Pin 35 | GPIO/MISO — SPI master in / slave out |
| Pin 36 | GPIO/SS — SPI slave select |
| Pin 37 | GPIO/TXD — SCI transmit |
| Pin 38 | GPIO/RXD — SCI receive |
| Pin 39 | GPIO — General purpose I/O |
| Pin 40 | TDI — JTAG test data in |
| Pin 41 | TDO — JTAG test data out |
| Pin 42 | TCK — JTAG test clock |
| Pin 43 | TMS — JTAG test mode select |
| Pin 44 | TRST — JTAG test reset |
| Pin 45 | RESET — Device reset (active low) |
| Pin 46 | EXTAL — External clock / crystal input |
| Pin 47 | XTAL — Crystal oscillator output |
| Pin 48 | VDD — Digital supply voltage |
Typical Applications
MC56F8122VFAE is suitable for 6 applications: 3-Phase BLDC Motor Drive, Digital Power Factor Correction (PFC), Uninterruptible Power Supply (UPS) Control, Solar Micro-Inverter, Industrial Process Control / Sensor Signal Processing, Appliance Motor Control (Washing Machines, Dishwashers).
3-Phase BLDC Motor Drive
The MC56F8122VFAE's two 6-channel PWM modules, 12-bit ADC with multiple channels, and 56800E DSP-class core deliver up to 60 MIPS throughput at 60 MHz, ideal for sensorless and Hall-effect BLDC commutation. Field-oriented control loops, Park/Clarke transforms, and PI compensation run in single-cycle MAC on the dual Harvard bus. Placed on the same 48-LQFP footprint as the lower-memory 8014 and the higher-memory 8322, it lets a single PCB scale from low-cost fans to mid-power pumps. The 2.5/3.3 V analog/digital rails and industrial temperature grade support harsh under-hood or factory environments.
Recommended
Digital Power Factor Correction (PFC)
Digital PFC stages demand deterministic inner-current loops at 50-100 kHz switching, which the MC56F8122VFAE handles cleanly with its 56800E core running PI compensators on the dedicated PWM channels. The 12-bit ADC samples inductor current and rectified mains voltage at the PWM-update rate, while JTAG/OnCE debug and FreeMASTER visualization aid tuning. Its 2.5/3.3 V supply rails interface directly to standard gate drivers and shunt-amplifier outputs. Industrial-grade operation and the 48-LQFP footprint let a single board design serve server PSU, UPS, and telecom rectifier front ends.
Recommended
Uninterruptible Power Supply (UPS) Control
The MC56F8122VFAE integrates DSP-grade math with MCU-grade peripheral control for UPS inverter and charger control loops. The two PWM modules drive full-bridge IGBT stages at 20 kHz with programmable dead-time, while the 12-bit ADC monitors battery voltage, current, and AC output for closed-loop regulation. SCI/SPI interfaces link to display and battery-management front-ends; I2C talks to EEPROM for parameter storage. The 32 KB Flash is adequate for sine-table generation, RMS computation, and protection state machines, and the 48-LQFP package simplifies thermal and EMI layout.
Recommended
Solar Micro-Inverter
Grid-tie micro-inverters benefit from the MC56F8122VFAE's DSP throughput and PWM flexibility, running MPPT, anti-islanding, and grid-current shaping on a single chip. The 56800E core executes the perturb-and-observe MPPT loop while the PWM channels drive a high-frequency DC-AC stage with sub-microsecond timing precision. On-chip 12-bit ADC captures PV panel voltage, current, and grid voltage without external ADCs. The industrial temperature grade and 48-LQFP package fit the sealed outdoor enclosure typical of micro-inverter designs.
Recommended
Industrial Process Control / Sensor Signal Processing
In industrial sensor-conditioning front-ends, the MC56F8122VFAE acts as both a microcontroller supervisor and an inline DSP, running FIR/IIR filtering on transducer signals before forwarding clean values over SCI/SPI. The 12-bit ADC samples at the rate needed for vibration or strain-gauge analysis, while the 56800E core performs FFT-based diagnostics with deterministic latency. The 48-LQFP footprint gives easy access to GPIO for relay drivers and opto-isolated control lines, and JTAG/OnCE simplifies field firmware updates in long-life industrial equipment.
Recommended
Appliance Motor Control (Washing Machines, Dishwashers)
Major appliances rely on BLDC or universal-motor drives, where the MC56F8122VFAE's PWM, ADC, and 56800E core deliver torque-ripple minimization and energy-efficient spin profiles. The 32 KB Flash fits user-interface state machines plus motor-control firmware, and the 4 KB RAM handles Park/Clarke working memory. Industrial temperature grade and 2.5/3.3 V operation suit appliance SMPS rails, while the 48-LQFP keeps BOM cost low. SCI/SPI link to HMI panels and inverter display boards, with JTAG/OnCE reserved for factory programming.
Recommended
Recommended Products Summary
Engineering reference data for MC56F8122VFAE — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC56F8322VFAE | MC56F8123VFAE | MC56F8014VFAE | MC56F8234VFAE |
|---|---|---|---|---|---|
| Package | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same |
| Core | 56800E 16-bit DSC | 56800E 16-bit DSC | 56800E 16-bit DSC | 56800E 16-bit DSC | 56800E 16-bit DSC |
| Flash Memory | 32 KB | 64 KB | 32 KB | 16 KB | 32 KB |
| RAM | 4 KB | 8 KB | 4 KB | 2 KB | 4 KB |
| Maximum Core Frequency | 40 MHz (this SKU) / 60 MHz (capability) | 60 MHz | 40 MHz | 32 MHz | 48 MHz |
| Supply Voltage | 2.5 V / 3.3 V | 2.5 V / 3.3 V | 2.5 V / 3.3 V | 2.5 V / 3.3 V | 3.3 V |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND |
Key Differentiators
- Doubling Flash/RAM upgrade on the same footprint (vs MC56F8322VFAE)
- Cost-reduced pin-compatible variant (vs MC56F8014VFAE)
- Higher core clock within the same family (vs MC56F8234VFAE)
Design Notes
The 48-LQFP (7x7 mm) footprint requires a 4-layer PCB at minimum to keep analog and digital return paths separated. Place a 100 nF ceramic decoupling capacitor on every AVDD/DVDD pair within 5 mm of the pin. The VREFH/VREFL traces should be guarded by analog ground and routed away from PWM outputs to avoid switching-noise coupling into the ADC reference.
Estimated: at industrial ambient +85 C with all peripherals active and 60 MHz core clock, the MC56F8122VFAE dissipates roughly 0.3 W on the 48-LQFP (theta_JA ~50 C/W on a 4-layer JEDEC test board). Junction temperature stays below +100 C, well within the industrial rating. Adding copper pours under the exposed pad area lowers thermal resistance further.
Route the JTAG signals TDI/TDO/TCK/TMS/TRST as a short matched-length bus with 33 ohm series termination if the emulator is more than 50 mm away. The XTAL/EXTAL traces must be kept short, with the load capacitors placed within 3 mm of the pins, to avoid oscillator start-up failure under industrial temperature extremes.
Do not leave unused PWM channels floating - tie them to a defined state via the GPIO mux to prevent shoot-through in the power stage. The ADC inputs above 3.3 V require external resistive dividers, and VREFH must always be powered before the analog inputs to avoid latch-up. Flash endurance is rated at 10k cycles minimum, so wear-level the parameter storage.
Compliance Information
RoHS and REACH compliant per NXP product page; lead-free. AEC-Q100 not applicable (industrial-grade part). Lifecycle NRND per NXP as of 2026-10-18.