NXP Semiconductors MKL17Z32VDA4

Overview

MKL17Z32VDA4 from NXP Semiconductors (formerly Freescale) is a 32 KB Flash, 8 KB SRAM ARM® Cortex®-M0+ microcontroller in 36-pin XFBGA (3.5×3.5 mm, 0.5 mm pitch), optimized for ultra-low-power battery-operated applications. It delivers 48 MHz core performance, 1.71–3.6 V operation, –40 to 105 °C temperature range, and integrates FlexIO, hardware CRC, and 15-channel 16-bit ADC with internal voltage reference.

For engineers reviewing the MKL17Z32VDA4 datasheet, MKL17Z32VDA4 pinout, MKL17Z32VDA4 application, or MKL17Z32VDA4 equivalent, key selection considerations include its 36-pin XFBGA footprint, 32 GPIOs, low-power UART/I²C/SPI peripherals, stop-mode current of 1.68 µA (RAM + RTC retained), and ROM-based bootloader supporting UART/I²C/SPI firmware updates.

Technical Context

The MKL17Z32VDA4 implements an ARM Cortex-M0+ core with Thumb-2 instruction set, NVIC supporting 32 interrupt vectors and 4 priority levels, and a multiplexed crossbar switch enabling concurrent bus master access. Its clock system combines 48 MHz HIRC, 8 MHz LIRC, 1 kHz LPO, and external crystal support (32 kHz–32 MHz).

Power management includes six static low-power modes - VLPR, VLPW, Stop, VLPS, LLS, and VLLS - with wake-up via LLWU (8 pins + 4 internal sources), AWIC, or NVIC. Peripherals are clock-gated per module, with independent clock source selection (e.g., LPUART uses bus clock, RTC uses ERCLK32K, FlexIO uses bus clock).

Key Specifications

Pinout & Package

Package: 36-pin XFBGA (3.5 mm × 3.5 mm, 0.5 mm pitch, 0.5 mm thickness), JEDEC MO-220 compliant, reflow-compatible.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MKL17Z32VDA4, MKL27Z32VDA4 offers scalable memory and USB without layout change, while STM32L053R8T6 trades FlexIO for embedded crypto - making MKL17Z32VDA4 optimal for cost-constrained, peripheral-flexible, battery-life-critical designs.

Availability

MKL17Z32VDA4 is available at Aetrix Electronics and suitable for wireless sensor nodes, industrial HMI panels, smart meter interfaces, and medical wearables requiring stable component supply across long-lifecycle deployments.

Supply support for MKL17Z32VDA4 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 ARM-based microcontrollers and edge processing.

The Kinetis KL17 family was designed specifically for ultra-low-power, cost-sensitive embedded applications - emphasizing battery longevity, flexible peripheral emulation, and robust security for resource-constrained edge devices.

FAQ

What is the maximum operating frequency of the MKL17Z32VDA4?

The MKL17Z32VDA4 operates at a maximum core frequency of 48 MHz using its internal 48 MHz high-accuracy HIRC oscillator. This frequency is fully supported across its full voltage range (1.71–3.6 V) and temperature range (–40 to 105 °C), and is used for both CPU execution and platform clock generation in Run and VLPR modes.

Does the MKL17Z32VDA4 support in-system programming without a debugger?

Yes, the MKL17Z32VDA4 includes a factory-programmed 16 KB ROM bootloader that supports firmware updates over UART, I²C, or SPI interfaces - enabling field upgrades without SWD connection. The bootloader is accessible after reset when BOOTCFG0 pin is low or FOPT register is configured accordingly.

How many ADC channels does the MKL17Z32VDA4 support in its 36-pin XFBGA package?

The MKL17Z32VDA4 in the 36-pin XFBGA (VDA4) package supports 15 single-ended or 4 differential ADC input channels. This is confirmed in Table 1 of the KL17 datasheet, which lists "15/4" for ADC channels (SE/DP) under the MKL17Z32VDA4 row - fewer than the 20/4 available in 64-pin variants due to pin count limitations.

What low-power modes are available on the MKL17Z32VDA4, and what is the lowest achievable current draw?

The MKL17Z32VDA4 supports six low-power modes: VLPR, VLPW, Stop, VLPS, LLS, and VLLS. Its lowest active-retention current is 1.68 µA in Stop mode with RAM and RTC retained. In VLLS3 mode, current drops further to ~0.7 µA (per datasheet Rev. 5, Section 5.2.2), though only the 32-byte register file and limited peripherals remain functional.

Is the MKL17Z32VDA4 pin-compatible with other Kinetis KL17 variants in the same package?

Yes, all KL17 variants in the 36-pin XFBGA (VDA4) package - including MKL17Z32VDA4 and MKL17Z64VDA4 - share identical pinouts and electrical characteristics. They differ only in Flash/SRAM size and marking; firmware built for MKL17Z32VDA4 runs unmodified on MKL17Z64VDA4, enabling seamless memory scalability.