NXP Semiconductors MKE18F256VLL16

Overview

MKE18F256VLL16 from NXP Semiconductors is an ARM® Cortex®-M4 based microcontroller operating up to 168 MHz with single-precision FPU, 256 KB flash (ECC-protected), 32 KB SRAM (ECC-protected), and 64 KB FlexNVM for data storage/EEPROM emulation - deployed in motor control, industrial sensing, and low-power HMI systems.

For engineers reviewing the MKE18F256VLL16 datasheet, MKE18F256VLL16 pinout, MKE18F256VLL16 application, or MKE18F256VLL16 equivalent, key selection criteria include its 100-pin LQFP package, 89 GPIOs (8 high-drive), triple 12-bit ADCs (1 MSPS), dual FlexCAN interfaces, and support for Stop/VLPS low-power modes with wake-up via LPUART/LPSPI/LPI2C/ADC/CMP.

Technical Context

The MKE18F256VLL16 implements a full ARMv7-M architecture with Thumb®-2 ISA, integrated DSP extensions, and configurable NVIC supporting 92 IRQ sources. Its clock system combines FIRC (48 MHz ±1%), SIRC (8/2 MHz ±3%), OSC (4–40 MHz), OSC32 (32 kHz), and PLL for flexible frequency synthesis up to 168 MHz core clock.

Memory subsystem includes ECC-protected 256 KB flash, 32 KB SRAM, 64 KB FlexNVM with EEPROM emulation, and 4 KB FlexRAM - all accessible at full speed with 8 KB I/D cache. Peripheral interconnect uses crossbar switch and TRGMUX for deterministic low-latency routing between eDMA, FTM, ADC, and communication modules.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (VLL), 14 × 14 × 1.4 mm, 0.5 mm pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with MKE18F256VLL16, MKE18F512VLL16 offers headroom for larger firmware images without layout changes, while MKE16F256VLL16 removes one FlexCAN instance to lower unit cost - both retain identical 100-LQFP footprint, clocking, power management, and analog subsystems.

Availability

MKE18F256VLL16 is available at Aetrix Electronics and suitable for motor control systems, industrial sensor nodes, automotive body electronics, and HMI panel controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MKE18F256VLL16 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, IoT, and mobile applications.

The KE1xF family targets cost-sensitive, high-reliability industrial and automotive applications - delivering ARM Cortex-M4 performance with integrated safety features (ECC, MPU, WDOG), low-power operation, and robust analog/motor control peripherals.

FAQ

What is the maximum operating frequency of the MKE18F256VLL16?

The MKE18F256VLL16 operates at up to 168 MHz using its ARM Cortex-M4 core with integrated PLL. This frequency is achievable with the 48 MHz FIRC or external crystal sources, and is supported across the full –40°C to 105°C ambient temperature range under 2.7–5.5 V supply conditions. The MKE18F256VLL16 maintains Dhrystone performance of 1.25 MIPS per MHz at this speed.

Does the MKE18F256VLL16 support EEPROM emulation?

Yes, the MKE18F256VLL16 provides 64 KB FlexNVM and 4 KB FlexRAM specifically designed for EEPROM emulation. These memory blocks support atomic write operations, wear leveling, and data retention over 100k cycles - eliminating the need for external serial EEPROM in applications like parameter storage or calibration data logging.

Can the MKE18F256VLL16 wake from Stop mode using serial interfaces?

Yes, the MKE18F256VLL16 supports wake-up from Stop and VLPS modes via LPUART, LPSPI, and LPI2C modules when clocked by SIRC or OSC32. This capability is managed by the Asynchronous Wake-up Interrupt Controller (AWIC), enabling ultra-low-power communication monitoring with typical wake-up latency under 5 µs.

How many ADC modules does the MKE18F256VLL16 include, and what is their resolution?

The MKE18F256VLL16 integrates three independent 12-bit successive approximation register (SAR) ADC modules, each supporting up to 16 external analog inputs. Each ADC achieves 1 MSPS sampling rate and includes hardware triggers, temperature sensor input, self-calibration, and configurable sample time - enabling synchronized multi-channel acquisition for motor control or sensor fusion.

Is the MKE18F256VLL16 pin-compatible with other KE1xF variants in the 100-LQFP package?

Yes, the MKE18F256VLL16 shares identical 100-pin LQFP (VLL) mechanical and electrical pinout with MKE18F512VLL16, MKE16F256VLL16, and MKE16F512VLL16. All share the same GPIO mapping, peripheral signal assignments, and power/ground pin locations - enabling drop-in replacement for memory or CAN configuration changes without PCB revision.