NXP ARM Cortex M4, Kinetis W Microcontroller, 50MHz, 256 kB Flash, 56-Pin LGA

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£8.79

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£10.55

(inc. VAT)

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  • Shipping from 19 February 2026
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1 - 9£8.79
10 - 49£7.19
50 - 99£6.57
100 - 199£6.17
200 +£5.80

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Packaging Options:
RS Stock No.:
826-3502
Mfr. Part No.:
MKW21D256VHA5
Brand:
NXP
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Brand

NXP

Family Name

Kinetis W

Package Type

LGA

Mounting Type

Surface Mount

Pin Count

56

Device Core

ARM Cortex M4

Program Memory Size

256 kB

Maximum Frequency

50MHz

RAM Size

32 kB

USB Channels

1

Number of SPI Channels

1

Number of CAN Channels

0

Number of I2C Channels

2

Typical Operating Supply Voltage

1.8 → 3.6 V

Number of USART Channels

0

Number of UART Channels

3

Number of PCI Channels

0

Program Memory Type

Flash

Minimum Operating Temperature

-40 °C

Instruction Set Architecture

ARM

Maximum Number of Ethernet Channels

0

ADCs

16 bit

Length

8mm

Number of ADC Units

1

Maximum Operating Temperature

+105 °C

Height

0.98mm

Number of LIN Channels

0

Dimensions

8 x 8 x 0.98mm

Width

8mm

Number of Ethernet Channels

0

Kinetis KW Series Wireless Microcontrollers


The Kinetis KW2xD Series of BLE/IEEE 802.15.4 compliant wireless microcontrollers are cost-effective, low power SoCs incorporating a 2.4GHz radio transceiver and an ARM Cortex-M4 core processor. The KW01Z Series feature a Sub-1GHz transceiver and a Cortex-M0+ core processor. Applications for the KW Series microcontrollers include Smart Meters, networked building control, home automation, healthcare/medical monitoring, industrial monitoring/control and local communication for the Internet of Things (IoT).

KW2xD Series
2.4GHz BLE/IEEE 802.15.4 compliant RF transceiver
Suitable for ISM and MBAN band operation
50MHz ARM Cortex-M4 core processor
RF Power Output: Up to +8dBm
Receiver Sensitivity: -102dBm @ 250kbps
Modulation OQPSK
OTA data rate: 250kbps over 1 of 16 selectable channels
Supports Clear Channel Assessment (CCA), Energy Detection (ED) and Link Quality Indicator (LQI)
Embedded profiles: Smart Energy 1.x, Home Automation, Healthcare, RF4CE
Network stack based on ZigBee Pro
Serial Communication: USB OTG (MKW22 only) SPI, I²C, UART
Power supply: +1.8V to +3.6Vdc

KW01Z Series
Sub-1GHz ISM-Band RF transceiver
48MHz ARM Cortex-M0+ core processor with 128KB Flash memory, 16KB RAM
RF Power Output: Up to +17dBm
Receiver Sensitivity: -120dBm @ 1.2kbps
Modulation: FSK, GFSK, MSK, GMSK and OOK
OTA data rate: Up to 600kbps
Packet engine with CRC, AES-128 encryption and 66-byte FIFO
Serial Communication: SPI, I²C, UART
Power supply: +1.8V to +3.6Vdc

RS Product Codes
826-3502 MKW21D256VHA5 256KB Flash memory
826-3505 MKW21D512VHA5 512KB Flash memory
826-3509 MKW22D512VHA5 512KB Flash memory, USB OTG
826-3518 MKW01Z128CHN 128KB Flash memory

Note

NXP is a trademark of NXP B.V.


The Kinetis range of ARM Cortex core microcontrollers consists of multiple hardware- and software-compatible Cortex-M0+ and Cortex-M4 MCU families with exceptional low-power performance, memory scalability and feature integration. Families range from the entry-level Cortex-M0+ Kinetis L Series to the high-performance, feature-rich Cortex-M4 Kinetis K and include a wide selection of analogue, communication, HMI, connectivity and security features.

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