Revision history

The following content has been added or updated:

• Reference circuitry - Added PMIC support section.

The following content has been added or updated:

• Absolute maximum ratings - Updated aQFN73 ESD CDM maximum value according to PCN162

The following content has been added or updated:

• Ordering information - Build codes Dxx not recommended for new designs
• Editorial changes

The following content has been added or updated:

• Mechanical specifications - Updated aQFN73 mechanical specification according to PCN148

The following content has been added or updated:

• Added information for the QFN48 package variant in
  • Absolute maximum ratings
  • FICR — Factory information configuration registers
  • Ordering information
  • Package Variation
  • Reference circuitry
  • Mechanical specifications
  • Pin assignments
  • POWER — Power supply
• Package thermal characteristics - Added QFN48 and WLCSP thermal resistance and updated aQFN73 with JEDEC PCB numbers

The following content has been added or updated:

• UICR — User information configuration registers - Added value HwDisabled to APPROTECT register.
• Debug and trace - Added description of APPROTECT functionality for devices where APPROTECT is controlled by hardware and software. Added peripheral APPROTECT with necessary registers to control APPROTECT for devices where APPROTECT is controlled by hardware and software.
• GPIO — General purpose input/output - Added missing NFC parameters C_{PAD_NFC} and I_{NFC_LEAK}.
• Pin assignments - Added note that DEC5 is not connected for aQFN™73, and WLCSP build codes Fxx and later.
• Mechanical specifications - Corrected min/max values of WLCSP D and E dimensions.
• Reference circuitry - Updated aQFN™73 and WLCSP reference circuitry with note on DEC5.
• Ordering information - Updated box labels. Added new product options.

The following content has been added or updated:

• Updated minimum valid value for EasyDMA MAXCNT and AMOUNT registers in SPIM, SPIS, TWIM, TWIS, and UARTE.
• FICR - Added nRF52820 value to INFO.PART register. Added size of packages to package description. Updated INFO.VARIANT device variants. Removed reset value for register TRNG90B.STARTUP and all TEMP module calibration registers.
• UICR - Updated reference to the VEXTDIF parameter in the REGOUT0 register.
• NVMC - Updated reset value of register READYNEXT. Updated registers ERASEPAGE, ERASEALL, ERASEUICR, ERASEPARTIAL, IHIT, and IMISS.
• POWER - Added Wake from System OFF reset source for the WDT. Added parameter R_{SOURCE,VBUSVDDH}. Renamed parameters to clarify REG0 in the Electrical Specification. Updated value of parameter R_SOURCE,VBUS to 6 Ω.
• CLOCK - Added parameter V_{AMP,IN,XO,LOW}.
• Current consumption - Added USBD current measurements. Updated values in Electrical Specification - Sleep.
• ACL - Added clarification for the maximum protected region size being limited to half the flash.
• LPCOMP - Added clarification about not disabling LPCOMP in the same write as COMP is enabled.
• QSPI - Added clarification about XIP region being read only.
• RADIO - Added EVENTS_SYNC.
• SPIS - Updated parameter t_SPIS,HCSN.
• SPIM - Updated parameter t_SPIM,CSK.
• TWIM - Updated t_{TWIM,HD_STA} parameter. Clarified use of SUSPEND and RESUME tasks.
• USBD - Updated the ENABLE register functionality description. Moved current measurements from the electrical specification section to CURRENT.
• Mechanical specifications - Added tolerances for D and E dimensions for WLCSP and aQFN73 packages.
• Reference circuitry - Corrected links. Corrected tables in WLCSP package Configurations 1 to 6. Added a new reference design with 4 component RF-match for the QIAA aQFN™73 package. Updated recommended value for USB serial resistor.
• Package thermal characteristics - Added aQFN73 thermal resistance.
• Ordering information - Corrected WLCSP ball count.
• Absolute maximum ratings - Added footnote on HTOL supply. Increased Flash memory retention to 10 years at 85 °C.
• Recommended operating conditions - Added parameter T_J and WLCSP package light sensitivity section.
• Editorial changes.

The following content has been added or updated:

• Added information for the WLCSP package variant in Pin assignments, Mechanical specifications, Reference circuitry, FICR, Absolute maximum ratings, and Ordering information.
• Reference circuitry - Updated RF-Match in aQFN™73 reference circuitry for all configurations. Added optional 4.7 Ω resistor to USB supply.
• UICR - Removed NRFFW[13] and NRFFW[14] registers.
• CPU - Corrected value of parameter CM_FLASH/mA.
• POWER - Clarified range of voltages in both Normal and High voltage modes.
• CLOCK - Corrected value of parameter P_{D_LFXO} to a less restrictive value.
• EasyDMA - Added section about EasyDMA error handling. Corrected example code in section EasyDMA array list.
• NVMC - Added note about the necessity to halt the CPU before issuing NVMC commands from the debugger.
• ACL - Corrected register access to ReadWriteOnce (RWO) for some registers.
• I₂S - Removed invalid values from register MCKFREQ, see parameter f_MCK. Fixed figure for Memory mapping for 8-bit stereo.
• SAADC - Corrected description of functionality of SAMPLE task.
• SPIS - Exposed the LIST register. Corrected SPI modes table.
• TWIS - Exposed the LIST register.
• UART - Added STOP bit configuration description.
• RADIO - Added equations to convert from HW RSSI to 802.15.4 range and dBm. Clarified RSSI timing. Clarified that TX ramp up time is affected by RU field in MODECNF0. Added IEEE 802.15.4 radio timing parameters to the electrical specifications. Added sensitivity parameter for 2 Mbit NRF mode.
• USBD - Pointed that isochronous transfers have to be finished before the next SOF event, or the result of the transfer is undefined.
• Legal notices - Updated text and image.