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NXP USA Inc. MKL02Z32CAF4R — Microcontrollers & Processors (MCU / MPU / DSP)

NXP MKL02Z32CAF4R Kinetis KL02 MCU, 48MHz ARM Cortex-M0+, 32KB Flash, 20-WLCSP

MPNMKL02Z32CAF4R
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NXP Kinetis KL02, MKL02Z32CAF4R, 32-bit ARM Cortex-M0+ MCU, 48MHz, 32KB Flash, 4KB RAM, 18 I/O, 1.71–3.6V supply, -40°C to 85°C, 20-WLCSP (1.99×1.94 mm) on tape-and-reel.

$4.1500Ref. price · indicative, final on quote
NXP USA Inc. MKL02Z32CAF4R datasheet (PDF)
Packaging20-UFBGA, WLCSP
RoHSROHS3 Compliant
SeriesKinetis KL02
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

MKL02Z32CAF4R specifications
ParameterValue
SeriesKinetis KL02
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.71V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed48MHz
PackageTape & Reel (TR) Cut Tape (CT)
RAM size4K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, LVD, POR, PWM, WDT
ConnectivityI2C, SPI, UART/USART
Number of i (O)18
Core processorARM® Cortex®-M0+
Case20-UFBGA, WLCSP
Data convertersA/D 10x12b
Program memory size32KB (32K x 8)

Product details

It runs at 48 MHz, carries 32 KB of Flash and 4 KB of RAM, and brings 18 general-purpose I/O plus a 10-channel 12-bit ADC. The part lives in a 20-ball WLCSP (1.99×1.94 mm) — that footprint is the whole story: you pick this MCU when board real estate is the tightest constraint and a few millimetres decide the layout.

Connectivity covers I2C, SPI, and UART/USART, enough for a local sensor bus or a serial link to a host controller.

Package reality — WLCSP handling

The 20-WLCSP (1.99×1.94 mm) is a wafer-level chip-scale package with no mould compound. PCB pads must match the ball layout exactly; rework is not trivial.

Frequently asked questions

What is MKL02Z32CAF4R's core speed?

The ARM Cortex-M0+ core runs at 48 MHz, which is the maximum clock for this device. That speed is sufficient for sensor polling, basic motor commutation, and serial bridge applications.

What compliance documentation does NXP provide for MKL02Z32CAF4R?

The part is ROHS3 compliant per the manufacturer's declaration. No REACH, UL, or IEC certification is listed in the official record for this specific order code.