NXP Semiconductors MKL17Z32VDA4R

Overview

MKL17Z32VDA4R from NXP Semiconductors (formerly Freescale) is a 32 KB Flash, 8 KB SRAM ARM® Cortex®-M0+ microcontroller in 36-pin XFBGA package, operating up to 48 MHz with 15-channel 16-bit ADC, dual I²C, dual SPI, two low-power UARTs, and FlexIO for serial peripheral emulation - deployed in battery-powered sensor nodes and portable medical devices.

For engineers reviewing the MKL17Z32VDA4R datasheet, MKL17Z32VDA4R pinout, MKL17Z32VDA4R application, or MKL17Z32VDA4R equivalent, key selection criteria include its 1.71–3.6 V operation, 1.68 µA stop-mode current with RTC+RAM retention, 46 µA/MHz VLPR efficiency, and support for UART/I²C/SPI bootloading via embedded 16 KB ROM.

Technical Context

The MKL17Z32VDA4R integrates an ARM Cortex-M0+ core with NVIC, AWIC, and LLWU for multi-level low-power wake-up control across six static modes - including VLPS, LLS, and VLLS3 - while retaining RAM and RTC in 1.68 µA stop mode. Its MCG-Lite clock system delivers 48 MHz HIRC (±0.5%) and 8 MHz LIRC (±3%), plus 32 kHz–32 MHz crystal support.

Peripherals are partitioned across bus, platform, and system clocks: ADC and CMP use OSCERCLK; TPM uses TPM_CLKIN0/1; LPUART0/1 operate from bus clock in low-power modes; FlexIO provides programmable serial emulation (UART, SPI, I²C, PWM); and CRC, DMA, and MTB enable secure firmware updates and trace debugging.

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, thermal pad optional.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MKL17Z32VDA4R, MKL27Z32VDA4 adds USB but increases SRAM overhead, while STM32L053R8T6 trades FlexIO and ADC precision for broader ecosystem support - making MKL17Z32VDA4R optimal for compact, analog-intensive, battery-constrained edge nodes.

Availability

MKL17Z32VDA4R is available at Aetrix Electronics and suitable for wearable health monitors, smart utility meters, industrial sensor nodes, and portable diagnostic tools requiring stable component supply across long-lifecycle deployments.

Supply support for MKL17Z32VDA4R 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 cost-sensitive, battery-powered general-purpose connectivity applications - emphasizing ultra-low-power operation, integrated analog peripherals, and flexible serial interface emulation without external components.

FAQ

What is the maximum operating frequency of the MKL17Z32VDA4R?

The MKL17Z32VDA4R operates at a maximum core frequency of 48 MHz using its high-accuracy internal 48 MHz HIRC oscillator (±0.5%). This frequency is fully supported across all operating voltage ranges (1.71–3.6 V) and temperature grades (–40 to 105 °C), enabling deterministic real-time performance in resource-constrained edge applications without external crystal dependency.

Does the MKL17Z32VDA4R support in-system programming via UART?

Yes, the MKL17Z32VDA4R supports in-system programming via UART using its embedded 16 KB ROM bootloader. The bootloader is accessible on reset and enables firmware updates over UART0 or UART2 without external debug hardware - provided the FOPT register is configured to allow ROM boot and the BOOTCFG0 pin is asserted low during reset.

What low-power modes are available on the MKL17Z32VDA4R, and what is the lowest current draw?

The MKL17Z32VDA4R offers six low-power modes, including Stop mode with 1.68 µA current draw while retaining RTC and 8 KB SRAM. In this mode, the core and most peripherals are disabled, but LLWU, RTC, and selected GPIOs remain active for wake-up - enabling multi-year operation on coin-cell batteries in applications like wireless sensors and portable medical devices.

How many ADC channels does the MKL17Z32VDA4R support, and what is its resolution?

The MKL17Z32VDA4R integrates a 16-bit successive approximation ADC with up to 15 single-ended input channels in its 36-pin XFBGA package. It achieves up to 818 kSPS at ≤13-bit effective resolution and includes a high-accuracy internal 1.2 V voltage reference - eliminating the need for external reference components in precision analog measurement applications.

Is the MKL17Z32VDA4R pin-compatible with other Kinetis KL17 variants in the same package?

Yes, the MKL17Z32VDA4R is pin-compatible with other KL17 family members in the 36-pin XFBGA package, including MKL17Z64VDA4. Both share identical pin assignments, electrical characteristics, and package dimensions (3.5 mm × 3.5 mm, 0.5 mm pitch), allowing direct substitution where Flash/SRAM requirements permit - though firmware must be validated for memory map differences.