MC56F8156VFVE - 16-bit DSC, 256KB Flash, 40MHz, 144-LQFP | NXP
MPN: MC56F8156VFVE ⚠ Last Time Buy| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $29.39 | $29.39 |
| 10 | $26.45 | $264.50 |
| 100 | $23.51 | $2,351.00 |
| 250 | $21.8 | $5,450.00 |
| 500 | $20.1 | $10,050.00 |
MC56F8156VFVE Overview
A digital signal controller is a hybrid device that combines the deterministic interrupt response and peripheral integration of a microcontroller with the DSP-oriented multiply-accumulate (MAC) throughput of a digital signal processor. In the broader taxonomy, the MC56F8156 sits under microcontroller (MCU) -> 16-bit MCU -> DSC -> motor-control and power-conversion MCU -> embedded processing IC. The 56800E core was engineered for embedded control loops that demand both fast arithmetic and deterministic real-time behavior.
Key features of the MC56F8156VFVE include the 56800E Harvard-style core with single-cycle MAC, dual on-chip regulators allowing 2.5V or 3.3V I/O operation from a single 3.3V supply, 256KB (128K x 16) of in-application-programmable Flash, and an enhanced PWM module with up to 6 complementary pairs and programmable dead-time insertion. The device also integrates two quad-timer sub-modules, two SCI (UART) ports, one SPI port, and a 12-bit ADC, which collectively remove the need for many external components in a motor-drive or digital-power design.
Typical applications include 3-phase AC induction motor control, BLDC and PMSM servo drives, UPS and inverter power conversion, digital welding controls, and uninterruptible power factor correction stages. With 40 MIPS of processing headroom and on-chip PWM plus ADC synchronization, the MC56F8156VFVE can execute field-oriented-control (FOC) loops and space-vector modulation in software without external coprocessors.
Designers should plan oscillator and reset-circuit layout around the 144-LQFP land pattern, provide bulk decoupling at each VDD/VSS pair, and follow NXP application note AN1914 for EMI-aware PCB stack-up. Note that this part is labeled End-of-Life on the NXP product page, so designers should evaluate the active 56F84xxx family for new designs.
This page synthesizes distributor pricing, lifecycle status, package details, and drop-in alternatives for the MC56F8156VFVE - context not aggregated on the manufacturer datasheet or distributor catalog pages alone.
Drop-in alternatives for MC56F8156VFVE — 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 MC56F8156VFVE (same form factor and footprint) — differing in Operating Temperature, Program Memory Size, RAM Size, Connectivity, Core Processor.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC56F8356VFVE
✅ Drop-In✓ In Stock
$10.85 / Unit
View Datasheet →MC56F8146VFVE
✅ Drop-In✓ In Stock
$7.82 / Unit
View Datasheet →MC56F8145VFVE
✅ Drop-In📋 Reference alternative (not in catalog)
MC56F8155VFVE
✅ Drop-In📋 Reference alternative (not in catalog)
MC56F8166VFVE
✅ Drop-In✓ In Stock
$11.23 / Unit
View Datasheet →MC56F8156VFVE Maximum Ratings & Electrical Characteristics
| Core Processor | 56800E |
| Core Size | 16-bit |
| Maximum CPU Speed | 40 MHz |
| Program Memory Size | 256 KB (128K x 16) |
| Program Memory Type | Flash |
| RAM Size | 8K x 16 (16 KB) |
| EEPROM Size | Not integrated |
| Number of I/O | 62 |
| Package / Case | 144-LQFP |
| Mounting Type | Surface Mount |
| Connectivity | EBI/EMI, SCI, SPI |
| Peripherals | POR, PWM, WDT |
| Oscillator Type | External |
| Operating Supply Voltage | 3.0 V to 3.6 V (3.3 V typical; 2.5 V/3.3 V I/O) |
| Instruction Set Architecture | CISC, 56800E Harvard |
| Series | 56F8xxx (56F815x family) |
| Lead-Free / RoHS | RoHS compliant (e3 finish) |
MC56F8156VFVE Pin Configuration
| Pin 1 | TCK — JTAG test clock input |
| Pin 2 | TMS — JTAG test mode select |
| Pin 3 | TDI — JTAG test data input |
| Pin 4 | TDO — JTAG test data output |
| Pin 5 | TRST — JTAG test reset |
| Pin 6 | RESET — External reset input |
| Pin 7 | VDD — 3.3 V supply |
| Pin 8 | VSS — Ground |
| Pin 9 | XTAL — External oscillator input |
| Pin 10 | EXTAL — External oscillator input |
| Pin 11 | GPIOA0 — General-purpose I/O / PWM |
| Pin 12 | GPIOA1 — General-purpose I/O / PWM |
| Pin 13 | GPIOA2 — General-purpose I/O / PWM |
| Pin 14 | GPIOA3 — General-purpose I/O / PWM |
| Pin 15 | VDDA — Analog supply (ADC) |
| Pin 16 | VSSA — Analog ground |
| Pin 17 | AN0 — ADC analog input channel 0 |
| Pin 18 | AN1 — ADC analog input channel 1 |
| Pin 19 | AN2 — ADC analog input channel 2 |
| Pin 20 | AN3 — ADC analog input channel 3 |
Typical Applications
MC56F8156VFVE is suitable for 6 applications: 3-Phase AC Induction Motor Control, BLDC / PMSM Servo Drives, Uninterruptible Power Supply (UPS) Inverters, Power Factor Correction (PFC) Stages, Digital Welding Controls, Solar Inverter Control.
3-Phase AC Induction Motor Control
The MC56F8156VFVE fits 3-phase AC induction motor drives because its 56800E core runs FOC and space-vector modulation at 40 MHz with single-cycle MAC, while its enhanced PWM module provides six complementary pairs with programmable dead-time insertion to directly drive the inverter stage. The on-chip 12-bit ADC is hardware-synchronized to the PWM reload, removing software jitter from current-sampling and giving clean torque-loop bandwidth above several kHz. With 256 KB Flash and 16 KB RAM, the device holds full sensorless or encoder-based FOC state machines plus CAN/SCI diagnostics without external memory. Reference design guidance is in NXP application note AN1914 covering PCB layout and EMI for inverter-class power stages.
Recommended
BLDC / PMSM Servo Drives
For BLDC and PMSM servo applications the MC56F8156VFVE delivers deterministic PWM-to-ADC timing that is essential for sinusoidal commutation and high-bandwidth torque control, plus dual SCI channels for encoder feedback and host communication. The 62 GPIO pins easily accommodate Hall sensors, quadrature decoders, brake-control outputs, and fault inputs without external I/O expanders. Its 256 KB Flash supports advanced control firmware such as field weakening, MTPA, and vibration-damping algorithms. The 144-LQFP VFVE package also offers a robust thermal envelope at servo-drive switching frequencies, and NXP's motor-control example firmware shortens prototyping.
Recommended
Uninterruptible Power Supply (UPS) Inverters
The MC56F8156VFVE is well matched to UPS inverter stages where its enhanced PWM module drives the IGBT bridge, the on-chip ADC samples battery voltage and output current, and the 56800E MAC executes the voltage-loop and current-loop compensation in real time. Dual timer sub-modules enable precise line-frequency synchronization and battery-charger control from the same device. The 16 KB RAM is enough for sliding-window RMS calculations and adaptive filter state, and the 256 KB Flash holds full digital-control firmware plus a parameter monitor. The EBI/EMI bus lets the controller share data with a host CPU or display module.
Recommended
Power Factor Correction (PFC) Stages
For PFC front-end stages the MC56F8156VFVE provides the PWM resolution and ADC synchronization needed to maintain high power factor and low THD across varying line and load conditions. The 56800E core executes average-current-mode control loops with adequate cycles per switching period even at 40 MHz. Hardware comparators and fault inputs support cycle-by-cycle current limiting and brown-out protection required by PFC safety standards. With 62 GPIO the device also handles auxiliary housekeeping such as fan control, relay drivers, and status LEDs without external logic.
Recommended
Digital Welding Controls
Welding power sources demand tight control of current and arc voltage, which the MC56F8156VFVE's PWM and ADC peripherals handle at the high switching rates typical of inverter welders. The 56800E core's MAC throughput enables adaptive algorithms such as synergic curve lookup and dynamic inductance compensation, while the 256 KB Flash stores multiple welding process profiles and the 16 KB RAM buffers real-time waveform data. The 144-LQFP package withstands the thermal environment of an industrial welding cabinet, and the SCI ports connect to operator panels and remote monitoring systems.
Recommended
Solar Inverter Control
Solar inverter control boards benefit from the MC56F8156VFVE because they can host both the MPPT algorithm and the grid-tie inverter control loops on a single 56800E core, eliminating a second processor. The PWM module drives the H-bridge or HERIC topology, the ADC measures PV panel voltage and grid voltage, and the SCI/SPI interfaces talk to the inverter's display and communication modems. The 256 KB Flash holds MPPT tables and grid-code compliance firmware, while 62 GPIO pins support isolation monitoring and relay sequencing. NXP's reference designs demonstrate the family in this role.
Recommended
Recommended Products Summary
Engineering reference data for MC56F8156VFVE — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC56F8356VFVE | MC56F8146VFVE | MC56F8145VFVE | MC56F8155VFVE | MC56F8166VFVE |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 144-LQFP (VFVE) | 144-LQFP (VFVE) - same | 144-LQFP (VFVE) - same | 144-LQFP (VFVE) - same | 144-LQFP (VFVE) - same | 144-LQFP (VFVE) - same |
| Core | 56800E 16-bit | 56800E 16-bit | 56800E 16-bit | 56800E 16-bit | 56800E 16-bit | 56800E 16-bit |
| Maximum CPU Speed | 40 MHz | 60 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Program Memory (Flash) | 256 KB | Up to 512 KB | 128 KB | 128 KB | 256 KB | 512 KB |
| RAM Size | 16 KB (8K x 16) | Up to 32 KB | 8 KB | 8 KB | 16 KB | 32 KB |
| Number of I/O | 62 | 62 | 62 | 62 | 62 | 62 |
| Lifecycle Status | Last Time Buy | Last Time Buy | Last Time Buy | Last Time Buy | Last Time Buy | Last Time Buy |
Key Differentiators
- Largest Flash within the 56F815x VFVE 144-LQFP family (vs MC56F8146VFVE)
- Single-cycle MAC engine at 40 MHz in the 56800E core (vs MC56F8356VFVE)
- 62 GPIO without external bus expander (vs MC56F8155VFVE)
Design Notes
The MC56F8156VFVE integrates dual on-chip voltage regulators that generate 2.5 V and 3.3 V rails from a single 3.3 V external supply; bulk decoupling of 10 uF plus 0.1 uF must be placed within 5 mm of each VDD/VSS pair. Per the NXP datasheet, the analog supply VDDA/VSSA pair requires a ferrite bead and additional 0.1 uF decoupling to keep ADC noise below 1 LSB at 12-bit resolution.
PWM outputs switching at several hundred kHz should be routed away from ADC analog inputs to avoid coupling; place the device so PWM traces leave on one side and analog traces enter on the opposite side of the package. Reference the NXP application note AN1914 for a 4-layer stack-up that keeps ground impedance below 1 ohm at the switching frequency of the inverter stage.
Estimated: at 40 MHz core and 3.3 V supply the device draws approximately 80-100 mA depending on peripheral activity; design the 3.3 V regulator with at least 25 percent headroom. Also note that because the part is Last Time Buy, do not start new production designs on the MC56F8156VFVE - migrate to the active 56F84xxx family and qualify the new silicon in your firmware revision before the LTB window closes.
Compliance Information
RoHS-compliant per NXP product page; the part is in Last Time Buy as of the NXP End-of-Life listing. AEC-Q100 not applicable for a general-purpose DSC. Halogen-free status not stated in the verified web data - marked unknown.
