NXP Semiconductors MKL46Z128VMC4

Overview

MKL46Z128VMC4 from NXP Semiconductors (formerly Freescale) is a 48 MHz ARM Cortex-M0+ microcontroller in a 121-pin MAPBGA package, featuring 128 KB flash, 16 KB SRAM, USB 2.0 On-The-Go with on-chip transceiver, segment LCD controller (up to 51 frontplanes/4 backplanes), and ultra-low-power operation down to 0.23 µA in VLLS0 mode. It targets battery-powered human-machine interface applications including portable medical devices and smart utility meters.

For engineers reviewing the MKL46Z128VMC4 datasheet, MKL46Z128VMC4 pinout, MKL46Z128VMC4 application, or MKL46Z128VMC4 equivalent, this page delivers verified technical context, low-power timing behavior, USB/LCD/analog peripheral integration, and validated alternative selection guidance - all grounded in the KL46P121M48SF4 Rev 5 datasheet and official package drawings.

Technical Context

The MKL46Z128VMC4 implements a single-core ARM Cortex-M0+ processor with Bit Manipulation Engine and Micro Trace Buffer, executing at up to 48 MHz in Run mode and 4 MHz in Very-Low-Power Run (VLPR) mode. Its clock system integrates MCG with FBE, FEI, BLPE, and PEE modes, supporting internal 4 MHz/32 kHz IRC and external crystals from 32 kHz to 16 MHz.

Power management includes nine low-power modes (VLPR, VLPS, LLS, STOP, VLLS0–3), with full state retention at 2 µA in VLLS1 and 0.23 µA in VLLS0 (PORPO=1). Peripheral adders are quantified per mode - e.g., RTC adds 357 nA at 25°C in VLLS1, LCD adds 5 µA in VLLS1 with 32 kHz crystal and 32 Hz frame rate.

Key Specifications

Pinout & Package

MKL46Z128VMC4 is housed in a 121-pin MAPBGA package (8 mm × 8 mm, 0.65 mm pitch), with thermal pad exposed on underside for enhanced heat dissipation in compact PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MKL46Z128VMC4, MKL26Z128VLH4 removes USB and LCD capability but simplifies layout with LQFP; MKE15Z128VLC4 trades LCD for CAN and improved analog accuracy - both require firmware adaptation due to peripheral register differences and lack of pin compatibility.

Availability

MKL46Z128VMC4 is available at Aetrix Electronics and suitable for portable medical monitors, smart utility meters, industrial HMI panels, and wireless sensor node hubs requiring stable component supply across multi-year production cycles.

Supply support for MKL46Z128VMC4 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 acquired Freescale in 2015 and maintains full support for the Kinetis L-family. NXP is a global leader in secure connectivity solutions for automotive, industrial, and IoT markets.

The Kinetis KL46 series was designed as an entry-level 32-bit MCU platform emphasizing ultra-low-power operation, USB integration, and human-machine interface features - targeting cost-sensitive, battery-operated embedded systems.

FAQ

What is the maximum operating frequency of the MKL46Z128VMC4 core?

The MKL46Z128VMC4 features an ARM Cortex-M0+ core rated for up to 48 MHz in Run mode using the MCG's PEE or FBE clock modes. In Very-Low-Power Run (VLPR) mode, the maximum core frequency is 4 MHz - a deliberate trade-off enabling sub-200 µA active current while retaining real-time processing capability for sensor polling and UI updates.

Does the MKL46Z128VMC4 include an integrated USB transceiver?

Yes, the MKL46Z128VMC4 integrates a full-/low-speed USB 2.0 On-The-Go controller with a physical-layer transceiver and a 5 V-to-3.3 V regulator. This eliminates the need for external USB PHY components, reducing bill-of-materials cost and PCB footprint - critical for space-constrained portable designs using the MKL46Z128VMC4.

What LCD configurations does the MKL46Z128VMC4 support?

The MKL46Z128VMC4's segment LCD controller supports two configurations: 51 frontplanes × 4 backplanes (204 segments) or 47 frontplanes × 8 backplanes (376 segments). It includes hardware bias generation, 32 Hz frame-rate control, and operates in VLLS1 mode with only 5 µA added current - making it suitable for always-on battery-powered displays in the MKL46Z128VMC4-based design.

What is the lowest power consumption mode available on the MKL46Z128VMC4?

The MKL46Z128VMC4 achieves its lowest power state in Very-Low-Leakage Stop Mode 0 (VLLS0) with PORPO=1, drawing just 0.23 µA at 3.0 V and 25°C while retaining full register and RAM contents. This mode supports wake-up via RTC alarm, GPIO, or low-power timer - enabling decade-long operation on a single coin cell in MKL46Z128VMC4-based metering or monitoring applications.

How many GPIO pins does the MKL46Z128VMC4 provide?

The MKL46Z128VMC4 provides up to 84 general-purpose input/output pins, distributed across five ports (PTA–PTE). All GPIOs support interrupt-on-change, configurable pull-up/pull-down, slew rate control, and programmable drive strength - with dedicated TSI-capable pins enabling capacitive touch sensing without external components in MKL46Z128VMC4 implementations.