NXP Semiconductors MKL36Z256VMC4

Overview

MKL36Z256VMC4 from NXP Semiconductors (formerly Freescale) is a 48 MHz ARM® Cortex®-M0+ based microcontroller with 256 KB flash, 32 KB SRAM, and up to 84 GPIOs in a 121-pin MAPBGA package. It integrates a segment LCD controller (up to 51×4), 16-bit SAR ADC, 12-bit DAC, TSI touch interface, and nine low-power modes - targeting ultra-low-power industrial HMI, portable medical devices, and battery-powered sensor nodes.

For engineers reviewing the MKL36Z256VMC4 datasheet, MKL36Z256VMC4 pinout, MKL36Z256VMC4 application, or MKL36Z256VMC4 equivalent, key selection criteria include its 2 μA static current with full state retention, 4.5 μs wakeup from VLPS mode, 1.71–3.6 V operating voltage, -40 to 105°C temperature range, and native support for I²C, SPI, UART, I²S, and PWM peripherals.

Technical Context

The MKL36Z256VMC4 implements a tightly coupled Cortex-M0+ core with Bit Manipulation Engine and Micro Trace Buffer, executing from zero-wait-state flash memory fabricated on 90 nm TFS process. Its clock system includes dual crystal oscillators (32 kHz and 3–32 MHz), MCG with FBE/BLPE/PEE modes, and configurable clock gating per peripheral.

Power management relies on hierarchical low-power modes (VLPR, VLPS, LLS, VLLS0–3), each with distinct clock domain control, RAM retention options, and wake-up sources including LPTMR, RTC, TSI, and external pins. The segment LCD controller operates independently in VLLS1 with dedicated bias generation and 1/8 duty cycle support.

Key Specifications

Pinout & Package

Package: 121-pin MAPBGA (8 mm × 8 mm, 0.65 mm pitch, 0.8 mm height). Pinout validated per KL36P121M48SF4 datasheet Rev 5 Figure 5-2 (KL36 pinouts, page 53) and package drawing 98ASA00344D1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MKL36Z256VMC4, MKL26Z128VLH4 offers lower cost and smaller footprint but sacrifices integrated HMI capability; MKL36Z256VMC4 remains optimal for display-centric, ultra-low-power industrial designs requiring full feature set in compact MAPBGA.

Availability

MKL36Z256VMC4 is available at Aetrix Electronics and suitable for industrial HMI panels, portable medical monitors, smart utility meters, asset tracking beacons, and battery-powered sensor nodes requiring stable component supply across long production lifecycles.

Supply support for MKL36Z256VMC4 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 focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in low-power microcontrollers and edge processing.

The Kinetis KL36 family - including MKL36Z256VMC4 - was designed specifically for ultra-low-power human-machine interface applications, integrating LCD, touch, and precision analog peripherals into a single energy-efficient Cortex-M0+ platform.

FAQ

What is the maximum operating frequency of the MKL36Z256VMC4 core?

The MKL36Z256VMC4 features an ARM Cortex-M0+ core rated for up to 48 MHz operation in normal run mode. This frequency is achieved using the MCG in PEE mode with a 48 MHz system clock. In very-low-power run (VLPR) mode, the core operates up to 4 MHz to minimize active current while maintaining real-time responsiveness. The MKL36Z256VMC4 datasheet specifies fSYS ≤ 48 MHz as the absolute maximum system clock frequency under all valid operating conditions.

Does the MKL36Z256VMC4 support external crystal oscillators?

Yes, the MKL36Z256VMC4 supports two external crystal oscillator configurations: a 32 kHz crystal for RTC and low-power timing (connected to RTC_CLKIN/RTC_CLKOUT), and a 3–32 MHz high-frequency crystal (connected to EXTAL/XTAL pins) for main system clock generation. The MCG module provides automatic failover and trimming support, and internal load capacitance is configurable to eliminate external capacitors in many designs. This dual-crystal capability is explicitly documented in the KL36P121M48SF4 datasheet Section 3.3.

What are the low-power modes supported by the MKL36Z256VMC4?

The MKL36Z256VMC4 implements nine distinct low-power modes: RUN, WAIT, STOP, VLPR, VLPS, LLS, and VLLS0–VLLS3. Each mode offers different combinations of clock gating, RAM retention, peripheral enablement, and wake-up source availability. For example, VLLS0 retains full register state at 0.23 μA (typical), while VLPS enables peripheral operation with 4.5 μs wakeup. These modes are controlled via SMC registers and detailed in Table 8 and Section 2.2.4 of the KL36P121M48SF4 datasheet Rev 5.

Can the MKL36Z256VMC4 drive a segment LCD directly?

Yes, the MKL36Z256VMC4 includes a dedicated segment LCD controller capable of driving up to 51 frontplanes and 4 backplanes (204 segments) or 47 frontplanes and 8 backplanes (376 segments). It supports programmable bias, 1/4–1/8 duty cycles, internal charge pump, and operates autonomously in VLLS1 mode with only 5 μA typical current draw. This integrated capability eliminates the need for external LCD driver ICs in applications such as utility meters and industrial displays.

What is the GPIO count and drive capability of the MKL36Z256VMC4?

The MKL36Z256VMC4 provides 84 general-purpose I/O pins across five port groups (PTA–PTE), as confirmed in the Ordering Information table on page 57 of KL36P121M48SF4 Rev 5. Select pins (PTB0, PTB1, PTD6, PTD7) support high-drive mode (20 mA sink/source), while others operate in normal drive (5 mA). All GPIOs feature configurable pull-ups (20–50 kΩ), slew rate control, and interrupt capability - enabling direct LED driving, switch sensing, and bus interfacing without external components.