NXP Semiconductors MKL36Z256VLL4R

Overview

MKL36Z256VLL4R from NXP Semiconductors (formerly Freescale) is a 48 MHz ARM Cortex-M0+ based microcontroller in the Kinetis KL36 sub-family, designed for ultra-low-power embedded applications. It integrates 256 KB flash, 32 KB SRAM, a segment LCD controller (up to 47×8 or 51×4), 16-bit SAR ADC, 12-bit DAC, and supports 84 GPIOs across its 100-pin LQFP package. It targets battery-powered human-machine interface devices requiring extended runtime and integrated display control.

For engineers reviewing the MKL36Z256VLL4R datasheet, MKL36Z256VLL4R pinout, MKL36Z256VLL4R application, or MKL36Z256VLL4R equivalent, key selection considerations include its 2 μA static current with full state retention, -40°C to 105°C operating range, 1.71–3.6 V supply, nine low-power modes, and compatibility with Kinetis L- and K3x-family software ecosystems.

Technical Context

The MKL36Z256VLL4R implements an ARM Cortex-M0+ core with Bit Manipulation Engine and Micro Trace Buffer, executing at up to 48 MHz in Run mode and down to 4 MHz in Very-Low-Power Run (VLPR) mode. Its clock system includes configurable MCG with internal 4 MHz/32 kHz IRC and external crystal support (32 kHz–32 MHz), enabling precise low-power timing via RTC and LPTMR.

System-level power optimization leverages 90 nm TFS process, clock gating, zero-wait-state flash, and dedicated low-leakage wakeup unit. Peripheral integration includes dual UARTs, two I²C modules, two SPIs, I²S/SAI, TPM/PWM timers, analog comparator with 6-bit DAC, and TSI-based touch sensing - all accessible while maintaining sub-μA stop-mode currents.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (VLL), 14 mm × 14 mm × 1.4 mm, 0.5 mm pitch. Pinout conforms to KL36 Signal Multiplexing and Pin Assignments (Document KL36P121M48SF4, Rev 5, Section 5.2).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MKL27Z256VLH4 and MKE15Z256VLH4, the MKL36Z256VLL4R uniquely combines ultra-low-power operation with integrated segment LCD control and TSI in a 100-pin package - making it the only option among the three for self-contained, battery-powered display-centric applications.

Availability

MKL36Z256VLL4R is available at Aetrix Electronics and suitable for smart utility meters, portable medical devices, industrial HMI panels, and asset tracking beacons requiring stable component supply and long-term lifecycle support.

Supply support for MKL36Z256VLL4R 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, and IoT applications. Formerly Freescale Semiconductor, it acquired the Kinetis portfolio in 2015.

The MKL36Z256VLL4R belongs to the Kinetis KL36 sub-family - engineered for ultra-low-power, cost-sensitive embedded systems requiring integrated human-machine interface capabilities including segment LCD and capacitive touch.

FAQ

What is the maximum operating frequency of the MKL36Z256VLL4R?

The MKL36Z256VLL4R features an ARM Cortex-M0+ core rated for up to 48 MHz in normal Run mode. In Very-Low-Power Run (VLPR) mode, the maximum core frequency is 4 MHz. These frequencies are supported across the full operating voltage range (1.71–3.6 V) and temperature range (-40°C to 105°C), as verified in the KL36P121M48SF4 datasheet Rev 5.

Does the MKL36Z256VLL4R support external memory interfaces?

No, the MKL36Z256VLL4R does not include external memory interfaces such as SDRAM, NOR flash, or parallel bus controllers. It relies solely on its on-chip 256 KB flash and 32 KB SRAM. This design aligns with its target use cases - compact, low-power HMI and sensor nodes where external memory would increase power, cost, and board complexity.

What LCD configurations does the MKL36Z256VLL4R support?

The MKL36Z256VLL4R's integrated segment LCD controller supports two primary configurations: up to 47 frontplanes × 8 backplanes (376 segments) or 51 frontplanes × 4 backplanes (204 segments). It includes resistor bias network support, programmable duty/clock rates, and direct GPIO mapping - eliminating need for external LCD drivers in applications like utility meters and medical displays.

Can the MKL36Z256VLL4R operate from a single 1.8 V supply?

Yes, the MKL36Z256VLL4R is fully specified to operate from 1.71 V to 3.6 V. At 1.8 V, it maintains 48 MHz operation in Run mode and supports all peripherals including ADC, DAC, UART, and LCD controller. Power consumption data at 1.8 V is documented in Table 9 of the KL36P121M48SF4 datasheet, confirming functional integrity across the entire voltage range.

Is the MKL36Z256VLL4R pin-compatible with other Kinetis L-series MCUs?

The MKL36Z256VLL4R uses a 100-pin LQFP (VLL) package and is software-compatible with other Kinetis L-family devices, but it is not pin-compatible with 64-pin variants like MKL36Z256VLH4 or MKL27Z256VLH4 due to differing pin counts and signal allocations. Pin compatibility exists only within the VLL package group (e.g., MKL36Z64VLL4, MKL36Z128VLL4), sharing identical footprint and signal mapping.