• Product Change Notification (PCN)
  • 201803037F01

201803037F01 : MKW41Z/31Z/21Z MCUBOOT Flashloader Addition

On the effective date NXP will begin programming the MCU bootloader for Kinetis Microcontrollers (MCUBOOT) to all newly-manufactured Kinetis® KW41Z/31Z/21Z wireless microcontrollers. More information concerning the operation of this bootloader can be found in your device specific reference manual or at www.nxp.com/mcuboot.

PCN Type Change Category Issue Date Effective Date
Final Product Change Notification Design, Electrical spec./Test coverage 14-Apr-2018 13-Jul-2018

Reason of Change

This will be a feature enhancement for Kinetis® KW41Z KW31Z and KW21Z wireless microcontrollers enabling in-system flash programming over a serial connection.

Identification of Affected Products

Units programmed with the bootloader will be identified by the package trace code corresponding to the effective date work week.

Anticipated Impact

Data sheet revision: No impact to existing datasheet

No impact to normal operation or programming is expected. However in some cases programming may fail if your programmer is not configured to erase the flash area first.

Affected Parts

Part Number / 12NC Last Time Buy Date Last Time Delivery Date Replacement Part
MKW21Z256VHT4
(935313188557)
- - -
MKW21Z512VHT4
(935313293557)
- - -
MKW31Z256VHT4
(935318528557)
- - -
MKW31Z512CAT4R
(935334077058)
- - -
MKW31Z512VHT4
(935323702557)
- - -
MKW31Z512VHT4R
(935323702518)
- - -
MKW41Z256VHT4
(935313259557)
- - -
MKW41Z512VHT4
(935320635557)
- - -
MKW41Z512VHT4R
(935320635518)
- - -