KW41Z/31Z/21Z 2.4GHz Wireless MCUs

NXP Kinetis KW41Z/31Z/21Z 2.4GHz Wireless Microcontrollers (MCUs) integrate a BLUETOOTH® Low Energy (BLE) v4.2, Generic FSK (at 250kbit/s, 500kbit/s, and 1000kbit/s), and IEEE® 802.15.4 compliant modem. These MCUs support multiple protocols running concurrently (time slice) in a single chip. The KW41Z/31Z/21Z MCUs also integrate a buck-boost DC-DC converter that supports a wide range of operating voltages from 0.9V to 4.2V. This integration significantly reduces the peak current in receive and transmit modes. The KW41Z/31Z/21Z MCUs deliver an excellent link budget that ensures a long range of communication and high immunity to interference.

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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Type
Core
Operating Frequency
Maximum Data Rate
Output Power
Sensitivity
Supply Voltage - Min
Supply Voltage - Max
Supply Current Receiving
Supply Current Transmitting
Program Memory Size
Minimum Operating Temperature
Maximum Operating Temperature
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Packaging
NXP Semiconductors RF System on a Chip - SoC BLE only
Datasheet
1,300In Stock
Min.: 1
Mult.: 1

BLE 4.2 Wireless Radio ARM Cortex M0+ 2.4 GHz 1 Mbps 3.5 dBm - 95 dBm 900 mV 4.2 V 6.8 mA 6.1 mA 256 kB - 40 C + 105 C QFN-48 Tray
NXP Semiconductors RF System on a Chip - SoC BLE Only KW40_512
Datasheet
697In Stock
Min.: 1
Mult.: 1

BLE 4.2 Wireless Radio ARM Cortex M0+ 2.4 GHz 1 Mbps 3.5 dBm - 95 dBm 900 mV 4.2 V 6.8 mA 6.1 mA 512 kB - 40 C + 105 C QFN-48 Tray
NXP Semiconductors RF System on a Chip - SoC Kinetis KW41Z: BLE 4.2 & 802.15.4 Wireless MCU, 48MHz Cortex-M0+, 512KB Flash, 128KB RAM, 48-LQFN
Datasheet
180Expected 7/28/2026
Min.: 1
Mult.: 1

BLE 4.2, LR-WPAN ARM Cortex M0+ 2.4 GHz 1 Mbps 3.5 dBm - 95 dBm 900 mV 4.2 V 6.8 mA 6.1 mA 512 kB - 40 C + 105 C QFN-48 Tray
NXP Semiconductors RF System on a Chip - SoC 802.15.4 Only KW40_512
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 1
Mult.: 1

LR-WPAN ARM Cortex M0+ 2.4 GHz 1 Mbps 3.5 dBm - 95 dBm 900 mV 4.2 V 6.8 mA 6.1 mA 512 kB - 40 C + 105 C QFN-48 Tray
NXP Semiconductors RF System on a Chip - SoC 802.15.4 Only
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 1,300
Mult.: 1,300

LR-WPAN ARM Cortex M0+ 2.4 GHz 1 Mbps 3.5 dBm - 100 dBm 900 mV 4.2 V 6.8 mA 6.1 mA 256 kB - 40 C + 105 C QFN-48 Tray
NXP Semiconductors RF System on a Chip - SoC Kinetis KW41Z: BLE 4.2 & 802.15.4 Wireless MCU, 48MHz Cortex-M0+, 256KB Flash, 64KB RAM, 48-LQFN
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 1,300
Mult.: 1,300

BLE 4.2, LR-WPAN ARM Cortex M0+ 2.4 GHz 1 Mbps 3.5 dBm - 95 dBm 900 mV 4.2 V 6.8 mA 6.1 mA 256 kB - 40 C + 105 C QFN-48 Tray