Skip to main content
Log in
NXP Semiconductors MC56F8123VFBE — Microcontrollers & Processors (MCU / MPU / DSP)

NXP MC56F8123VFBE 16-bit MCU, 40MHz, 32KB Flash, 64-LQFP

MPNMC56F8123VFBE
End of Life

NXP 56F8xxx 16-bit MCU, 56800E core, 40MHz, 32KB (16K x 16) Flash, 8K x 8 RAM, 27 I/O, SCI, SPI, 8x12b ADC, POR, WDT, internal oscillator, 3V-3.6V supply, -40°C to 105°C, 64-LQFP (10x10 mm).

$11.8Ref. price · indicative, final on quote
Packaging64-LQFP
RoHSROHS3 Compliant
Series56F8xxx
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MC56F8123VFBE specifications
ParameterValue
Series56F8xxx
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))3V ~ 3.6V
Operating temperature-40°C ~ 105°C (TA)
Speed40MHz
PackageBulk
RAM size8K x 8
Core size16-Bit
PeripheralsPOR, WDT
ConnectivitySCI, SPI
Number of i (O)27
Core processor56800E
Case64-LQFP
Data convertersA/D 8x12b
Program memory size32KB (16K x 16)

Product details

16-bit DSP/MCU for motor-control and industrial loops

The NXP MC56F8123VFBE is a 16-bit microcontroller built around the 56800E core, clocked at 40 MHz.

At 40 MHz, the 56800E core executes a single-cycle 16×16 multiply-accumulate.

Memory sizing — firmware fit and data buffer budget

The 32 KB Flash (organized as 16K x 16) holds the bootloader, main control firmware, and a modest lookup table for sine/cosine or SVPWM. The 8 KB of RAM is shared between data buffers, stack, and the ADC result registers.

Industrial temperature grade — deployment boundaries

Package and footprint — 64-LQFP 10x10 mm

Housed in a 64-lead LQFP with a 10x10 mm body, the MC56F8123VFBE fits a standard four-layer PCB.

NXP lists the MC56F8123VFBE as Active on the product status.

Frequently asked questions

What is the core processor of the MC56F8123VFBE?

The MC56F8123VFBE uses the 56800E 16-bit core, a DSP-optimized architecture with a single-cycle 16×16 MAC, running at 40 MHz.

What is the MC56F8123VFBE equivalent or second-source?

The NXP MK51DX128CMC7 is a 72 MHz ARM Cortex-M4 part in a different architecture family — not a pin-compatible or software-compatible substitute. For a true 56800E-family second source, consult the 56F8xxx series cross-reference; no direct second-source MPN is listed in the current record.