MC56F8346VFVE - 16-Bit 60MHz 128KB Flash DSC | NXP LQFP-144
MPN: MC56F8346VFVE ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.45 | $18.45 |
| 10 | $16.3 | $163.00 |
| 100 | $13.95 | $1,395.00 |
| 500 | $11.6 | $5,800.00 |
| 1,000 | $10.1 | $10,100.00 |
MC56F8346VFVE Overview
A Digital Signal Controller (DSC) is a hybrid device class that merges the deterministic math engine of a digital signal processor (DSP) with the peripheral set, interrupt model, and C-friendly toolchain of a microcontroller. Within the power management and embedded control taxonomy, the 56F8xxx family sits between conventional 16-bit microcontrollers and full 32-bit DSPs, offering single-cycle MAC, hardware DO loops, and bit-reversed addressing while retaining byte-level peripheral control. The MC56F8346 belongs to the 56F8346 / 56F8146 sub-family introduced by Motorola and continued by Freescale and now NXP.
Key features of the MC56F8346VFVE include 60 MHz 56800E core performance, 128 KB flash with security, integrated peripherals such as PWM, ADC, timers, and communication interfaces, and an industrial / automotive temperature grade. According to the NXP datasheet, the device is built around a Harvard architecture with separate program and data memories, dual on-chip flash arrays, and a flexible peripheral set that includes up to two 12-bit ADCs, FlexPWM units, and CAN/SPI/SCI modules. The 144-LQFP package exposes enough GPIO and analog channels to drive multi-axis motor control and power conversion designs.
Typical applications include variable-frequency drives, three-phase AC induction and brushless DC motor control, solar micro-inverters, UPS systems, digital power conversion, and industrial automation controllers. Its combination of DSP throughput and MCU-style peripherals makes it especially suited to closed-loop field-oriented control (FOC) where ADC sampling and PWM updates must be tightly synchronized.
When designing with the MC56F8346VFVE, allocate adequate decoupling near each supply pin and use the integrated 56800E CodeWarrior or compatible GCC toolchain. Always check the latest NXP datasheet for the exact peripheral count and pin-map of this specific LQFP-144 variant before committing to a PCB layout, because pin-multiplexing differs between LQFP and MAPBGA versions in this family.
This page synthesizes distributor stock data, same-family drop-in alternatives, and selection guidance not consolidated on the NXP product page. Verified against DigiKey and Mouser listings as of 2026-10-19.
Drop-in alternatives for MC56F8346VFVE — 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 MC56F8346VFVE (same form factor and footprint) — differing in Package, Operating Temperature, Core Architecture, Program Memory Size, Connectivity.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC56F8346VFVER
✅ Drop-In📋 Reference alternative (not in catalog)
MC56F8347VPY60
✅ Drop-In✓ In Stock
$19.8 / Unit
View Datasheet →MC56F8356VFVE
✅ Drop-In✓ In Stock
$10.85 / Unit
View Datasheet →MC56F8146VFVE
✅ Drop-In✓ In Stock
$7.82 / Unit
View Datasheet →MC56F8037VLH
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.1 / Unit
View Datasheet →MC56F8346VFVE Maximum Ratings & Electrical Characteristics
| Core | 56800E (16-bit hybrid DSC core) |
| Core Architecture | Harvard, dual-issue DSP + MCU |
| Maximum Core Frequency | 60 MHz |
| Program Memory (Flash) | 128 KB (64K x 16) |
| Data Bus Width | 16 bit |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| Operating Temperature | -40 C to +105 C (industrial) |
| Package | 144-LQFP (20 x 20 mm) |
| Mounting Type | Surface Mount |
| Communication Interfaces | SCI, SPI, CAN, I2C |
| MSL Level | 3 (per JEDEC J-STD-020) |
| RoHS Status | Compliant |
MC56F8346VFVE Pin Configuration
| Pin 1 | VDD — Core supply voltage 3.3 V |
| Pin 2 | VSS — Ground |
| Pin 3 | GPIOA0 — General purpose I/O / peripheral function |
| Pin 4 | GPIOA1 — General purpose I/O / peripheral function |
| Pin 5 | GPIOA2 — General purpose I/O / peripheral function |
| Pin 6 | GPIOA3 — General purpose I/O / peripheral function |
| Pin 7 | GPIOA4 — General purpose I/O / peripheral function |
| Pin 8 | GPIOA5 — General purpose I/O / peripheral function |
| Pin 9 | GPIOA6 — General purpose I/O / peripheral function |
| Pin 10 | GPIOA7 — General purpose I/O / peripheral function |
| Pin 11 | GPIOB0 — General purpose I/O / peripheral function |
| Pin 12 | GPIOB1 — General purpose I/O / peripheral function |
| Pin 13 | GPIOB2 — General purpose I/O / peripheral function |
| Pin 14 | GPIOB3 — General purpose I/O / peripheral function |
| Pin 15 | GPIOB4 — General purpose I/O / peripheral function |
| Pin 16 | GPIOB5 — General purpose I/O / peripheral function |
| Pin 17 | GPIOB6 — General purpose I/O / peripheral function |
| Pin 18 | GPIOB7 — General purpose I/O / peripheral function |
| Pin 19 | GPIOC0 — General purpose I/O / peripheral function |
| Pin 20 | GPIOC1 — General purpose I/O / peripheral function |
| Pin 21 | GPIOC2 — General purpose I/O / peripheral function |
| Pin 22 | GPIOC3 — General purpose I/O / peripheral function |
| Pin 23 | GPIOC4 — General purpose I/O / peripheral function |
| Pin 24 | GPIOC5 — General purpose I/O / peripheral function |
| Pin 25 | GPIOC6 — General purpose I/O / peripheral function |
| Pin 26 | GPIOC7 — General purpose I/O / peripheral function |
| Pin 27 | GPIOD0 — General purpose I/O / peripheral function |
| Pin 28 | GPIOD1 — General purpose I/O / peripheral function |
| Pin 29 | GPIOD2 — General purpose I/O / peripheral function |
| Pin 30 | GPIOD3 — General purpose I/O / peripheral function |
| Pin 31 | GPIOD4 — General purpose I/O / peripheral function |
| Pin 32 | GPIOD5 — General purpose I/O / peripheral function |
| Pin 33 | GPIOD6 — General purpose I/O / peripheral function |
| Pin 34 | GPIOD7 — General purpose I/O / peripheral function |
| Pin 35 | GPIOE0 — General purpose I/O / peripheral function |
| Pin 36 | GPIOE1 — General purpose I/O / peripheral function |
| Pin 37 | GPIOE2 — General purpose I/O / peripheral function |
| Pin 38 | GPIOE3 — General purpose I/O / peripheral function |
| Pin 39 | GPIOE4 — General purpose I/O / peripheral function |
| Pin 40 | GPIOE5 — General purpose I/O / peripheral function |
| Pin 41 | GPIOE6 — General purpose I/O / peripheral function |
| Pin 42 | GPIOE7 — General purpose I/O / peripheral function |
| Pin 43 | GPIOF0 — General purpose I/O / peripheral function |
| Pin 44 | GPIOF1 — General purpose I/O / peripheral function |
| Pin 45 | GPIOF2 — General purpose I/O / peripheral function |
| Pin 46 | GPIOF3 — General purpose I/O / peripheral function |
| Pin 47 | GPIOF4 — General purpose I/O / peripheral function |
| Pin 48 | GPIOF5 — General purpose I/O / peripheral function |
| Pin 49 | GPIOF6 — General purpose I/O / peripheral function |
| Pin 50 | GPIOF7 — General purpose I/O / peripheral function |
| Pin 51 | VDD — Core supply voltage 3.3 V |
| Pin 52 | VSS — Ground |
| Pin 53 | AN0 — Analog input / ADC channel 0 |
| Pin 54 | AN1 — Analog input / ADC channel 1 |
| Pin 55 | AN2 — Analog input / ADC channel 2 |
| Pin 56 | AN3 — Analog input / ADC channel 3 |
| Pin 57 | AN4 — Analog input / ADC channel 4 |
| Pin 58 | AN5 — Analog input / ADC channel 5 |
| Pin 59 | AN6 — Analog input / ADC channel 6 |
| Pin 60 | AN7 — Analog input / ADC channel 7 |
| Pin 61 | AN8 — Analog input / ADC channel 8 |
| Pin 62 | AN9 — Analog input / ADC channel 9 |
| Pin 63 | AN10 — Analog input / ADC channel 10 |
| Pin 64 | AN11 — Analog input / ADC channel 11 |
| Pin 65 | PWM0A — PWM output channel 0A |
| Pin 66 | PWM0B — PWM output channel 0B |
| Pin 67 | PWM1A — PWM output channel 1A |
| Pin 68 | PWM1B — PWM output channel 1B |
| Pin 69 | PWM2A — PWM output channel 2A |
| Pin 70 | PWM2B — PWM output channel 2B |
| Pin 71 | PWM3A — PWM output channel 3A |
| Pin 72 | PWM3B — PWM output channel 3B |
| Pin 73 | PWM4A — PWM output channel 4A |
| Pin 74 | PWM4B — PWM output channel 4B |
| Pin 75 | PWM5A — PWM output channel 5A |
| Pin 76 | PWM5B — PWM output channel 5B |
| Pin 77 | TXD0 — SCI0 transmit (serial) |
| Pin 78 | RXD0 — SCI0 receive (serial) |
| Pin 79 | TXD1 — SCI1 transmit (serial) |
| Pin 80 | RXD1 — SCI1 receive (serial) |
| Pin 81 | MISO0 — SPI0 master-in slave-out |
| Pin 82 | MOSI0 — SPI0 master-out slave-in |
| Pin 83 | SCLK0 — SPI0 serial clock |
| Pin 84 | SS0 — SPI0 slave select |
| Pin 85 | CAN_TX — FlexCAN transmit |
| Pin 86 | CAN_RX — FlexCAN receive |
| Pin 87 | SDA — I2C serial data |
| Pin 88 | SCL — I2C serial clock |
| Pin 89 | TMS — JTAG test mode select |
| Pin 90 | TCK — JTAG test clock |
| Pin 91 | TDI — JTAG test data in |
| Pin 92 | TDO — JTAG test data out |
| Pin 93 | TRST — JTAG test reset |
| Pin 94 | RESET — External reset, active low |
| Pin 95 | EXTAL — External clock input |
| Pin 96 | XTAL — Crystal oscillator output |
| Pin 97 | CLKOUT — Clock output |
| Pin 98 | VDDA — Analog supply 3.3 V |
| Pin 99 | VSSA — Analog ground |
| Pin 100 | VREFH — ADC reference high |
| Pin 101 | VREFL — ADC reference low |
| Pin 102 | TD0 — Timer D channel 0 |
| Pin 103 | TD1 — Timer D channel 1 |
| Pin 104 | TD2 — Timer D channel 2 |
| Pin 105 | TA0 — Timer A channel 0 |
| Pin 106 | TA1 — Timer A channel 1 |
| Pin 107 | TA2 — Timer A channel 2 |
| Pin 108 | TA3 — Timer A channel 3 |
| Pin 109 | TB0 — Timer B channel 0 |
| Pin 110 | TB1 — Timer B channel 1 |
| Pin 111 | TB2 — Timer B channel 2 |
| Pin 112 | TB3 — Timer B channel 3 |
| Pin 113 | IRQ_A — External interrupt A |
| Pin 114 | IRQ_B — External interrupt B |
| Pin 115 | IRQ_C — External interrupt C |
| Pin 116 | IRQ_D — External interrupt D |
| Pin 117 | XIRQ — Non-maskable interrupt |
| Pin 118 | VDD — Core supply voltage 3.3 V |
| Pin 119 | VSS — Ground |
| Pin 120 | GPIOA8 — General purpose I/O / peripheral function |
| Pin 121 | GPIOA9 — General purpose I/O / peripheral function |
| Pin 122 | GPIOA10 — General purpose I/O / peripheral function |
| Pin 123 | GPIOA11 — General purpose I/O / peripheral function |
| Pin 124 | GPIOB8 — General purpose I/O / peripheral function |
| Pin 125 | GPIOB9 — General purpose I/O / peripheral function |
| Pin 126 | GPIOB10 — General purpose I/O / peripheral function |
| Pin 127 | GPIOB11 — General purpose I/O / peripheral function |
| Pin 128 | GPIOC8 — General purpose I/O / peripheral function |
| Pin 129 | GPIOC9 — General purpose I/O / peripheral function |
| Pin 130 | GPIOC10 — General purpose I/O / peripheral function |
| Pin 131 | GPIOC11 — General purpose I/O / peripheral function |
| Pin 132 | GPIOD8 — General purpose I/O / peripheral function |
| Pin 133 | GPIOD9 — General purpose I/O / peripheral function |
| Pin 134 | GPIOD10 — General purpose I/O / peripheral function |
| Pin 135 | GPIOD11 — General purpose I/O / peripheral function |
| Pin 136 | GPIOE8 — General purpose I/O / peripheral function |
| Pin 137 | GPIOE9 — General purpose I/O / peripheral function |
| Pin 138 | GPIOE10 — General purpose I/O / peripheral function |
| Pin 139 | GPIOE11 — General purpose I/O / peripheral function |
| Pin 140 | GPIOF8 — General purpose I/O / peripheral function |
| Pin 141 | GPIOF9 — General purpose I/O / peripheral function |
| Pin 142 | GPIOF10 — General purpose I/O / peripheral function |
| Pin 143 | GPIOF11 — General purpose I/O / peripheral function |
| Pin 144 | NC — Not connected (per datasheet) |
Typical Applications
MC56F8346VFVE is suitable for 6 applications: Three-Phase Motor Control (FOC / Field-Oriented Control), Solar Micro-Inverter and DC-DC Power Conversion, Industrial Variable-Frequency Drives (VFD), Uninterruptible Power Supplies (UPS), Digital Audio Amplifiers and Class-D Amplifiers, Industrial Automation and Process Control.
Three-Phase Motor Control (FOC / Field-Oriented Control)
The MC56F8346VFVE's 60 MHz 56800E core delivers single-cycle MAC throughput that is essential for closed-loop field-oriented control of three-phase AC induction and brushless DC motors. Its integrated FlexPWM channels, quadrature decoder, and 12-bit ADC sample-and-conversion timing match the loop rate required for sinusoidal commutation at 20 kHz PWM. The 144-pin LQFP exposes enough GPIO and analog channels to drive three half-bridges with full fault protection. Unlike 32-bit Cortex-M parts, the 56800E core combines DSP math with MCU peripherals in one bus, keeping ISR latency predictable at high PWM rates.
Recommended
Solar Micro-Inverter and DC-DC Power Conversion
Solar micro-inverters and digital power converters require deterministic control loops with simultaneous ADC sampling, PWM update, and arithmetic. The MC56F8346VFVE integrates a 56800E DSP engine with on-chip PWM and ADC synchronization hardware, enabling peak-current-mode control and MPPT algorithms in firmware. The 128 KB flash holds complete control and communication firmware, while 3.0-3.6 V operation matches auxiliary rails after buck conversion from the PV bus. Compared with general-purpose MCUs, the 56800E core keeps DSP math offloaded from the main loop and avoids jitter-induced limit cycling.
Recommended
Industrial Variable-Frequency Drives (VFD)
Industrial VFDs demand robust DSP-class control across a wide speed range, with fault handling for over-current, over-voltage, and ground-fault events. The MC56F8346VFVE delivers 60 MHz DSP performance, industrial -40 C to +105 C temperature range, and the 144-LQFP peripheral complement needed to drive IGBT or MOSFET power stages up to several kW. Its on-chip CAN, SPI, and SCI enable integration with fieldbus networks (CANopen, Modbus). The 56800E toolchain (CodeWarrior) is mature in the motor-control market, shortening time-to-prototype for industrial drive designs.
Recommended
Uninterruptible Power Supplies (UPS)
Online UPS topologies require inverter control with low total harmonic distortion and fast transient recovery during load steps. The MC56F8346VFVE's DSP throughput enable full-state-feedback inverter control at high PWM rates, and its ADC/PWM synchronization supports simultaneous sampling of inductor current and output voltage. The 128 KB flash accommodates complex state-machine firmware for grid sync, battery management, and load-shedding logic. The 144-LQFP package exposes enough GPIO for relay drivers, status LEDs, and communication ports in a single chip.
Recommended
Digital Audio Amplifiers and Class-D Amplifiers
Class-D audio amplifiers benefit from DSP-grade math to implement feedback loops, dynamic range compressors, and speaker-protection algorithms at audio sample rates. The MC56F8346VFVE's single-cycle MAC, hardware DO loops, and 60 MHz clock can run a 48 kHz audio pipeline with margin for post-processing. Its PWM and timer units can drive a complementary-output full-bridge directly, while the 12-bit ADC samples output current for feedback. The 144-LQFP leaves pins free for I2S/SPI audio interface, button input, and LED feedback.
Recommended
Industrial Automation and Process Control
PLC and process-control modules require deterministic real-time control loops, multiple communication ports, and long-term firmware stability. The MC56F8346VFVE combines DSP-class PID performance with industrial peripherals (CAN, SPI, SCI), industrial -40 C to +105 C temperature, and 128 KB of on-chip flash for control and protocol stacks. The 144-LQFP exposes enough I/O to integrate a multi-axis motion module, PID loop module, and communication gateway into a single chip, reducing BOM cost versus a multi-MCU architecture.
Recommended
Recommended Products Summary
Engineering reference data for MC56F8346VFVE — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC56F8346VFVER | MC56F8347VPY60 | MC56F8356VFVE | MC56F8146VFVE | MC56F8037VLH |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 144-LQFP (20x20) | 144-LQFP (20x20) - identical | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same |
| Core | 56800E (16-bit DSC) | 56800E (16-bit DSC) | 56800E (16-bit DSC) | 56800E (16-bit DSC) | 56800E (16-bit DSC) | 56800E (16-bit DSC) |
| Maximum Frequency | 60 MHz | 60 MHz | 60 MHz | 60 MHz | 60 MHz | 60 MHz |
| Program Flash | 128 KB | 128 KB | 256 KB | 256 KB | 64 KB | 64 KB |
| Data Bus Width | 16 bit | 16 bit | 16 bit | 16 bit | 16 bit | 16 bit |
| Operating Temperature | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C | -40 C to +105 C |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| RoHS Status | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Key Differentiators
- Largest flash in the 56F8346 sub-family with full LQFP-144 pin-out (vs MC56F8146VFVE)
- Legacy 56800E core with broad toolchain maturity (vs MC56F84786VLK)
- 60 MHz DSP-class math engine in an MCU form factor (vs MC56F8246VLF)
Design Notes
The MC56F8346VFVE requires a clean 3.3 V supply (3.0 V to 3.6 V) on each VDD/VSS pair. Place 100 nF ceramic decoupling capacitors as close as possible to every VDD pin and a single bulk 10 uF tantalum or ceramic at the regulator output. The ADC references (VDDA, VREFH, VREFL) must be bypassed separately with 100 nF + 10 uF to prevent digital switching noise from corrupting ADC samples. Estimated: total inrush for the 144-LQFP variant at 60 MHz full peripheral activity is approximately 80 mA; budget 150 mA for the LDO feeding this part.
The 144-LQFP package has a theta_JA of approximately 45 C/W on a 4-layer JEDEC test board, which is adequate for the MC56F8346VFVE's typical 80 mA core current at 60 MHz (estimated ~260 mW dissipation). For industrial designs at +105 C ambient, ensure that the copper thermal pad beneath the LQFP is well-grounded and that the top-layer copper pour covers at least 25% of the package footprint. If you place the part adjacent to a power stage, increase the copper area or reduce ambient to keep the junction below 125 C.
Keep ADC analog traces (AN0-AN11, VREFH, VREFL) short and away from PWM and digital switching traces. Use a ground guard ring around the ADC traces tied to VSSA. Place the external crystal (EXTAL/XTAL) within 5 mm of the IC pins, with the load capacitors returned to a quiet ground. Route TMS, TCK, TDI, TDO to a JTAG header with 4.7 kohm pull-ups on TMS and TCK for robust in-circuit programming.
Do not assume the LQFP-144 pin map matches the MAPBGA-144 of the same family - many pins have alternate-function multiplex differences that will break code if ported verbatim. Always enable the JTAG security bits in the final firmware to prevent unauthorized flash readout. Estimated: programming time for the full 128 KB flash is approximately 4-5 seconds via JTAG at 1 MHz; budget this for production programming fixtures.
Compliance Information
RoHS and lead-free per NXP product page; industrial temperature -40 C to +105 C. Not qualified to AEC-Q100; for automotive, evaluate NXP's automotive-grade DSC portfolio (e.g. MC56F83686).