Revision history

The following content has been added or updated:

• Ordering information - Build codes Fxx not recommended for new designs.

The following content has been added or updated:

• Pin assignments - Added description of standard drive and low frequency I/O
• FICR — Factory information configuration registers - Updated INFO.VARIANT register

The following content has been added or updated:

• Debug and trace - Updated disabling access port protection description.
• FICR — Factory information configuration registers - Updated INFO.VARIANT register.
• GPIO — General purpose input/output - Updated electrical specification.
• SPIS — Serial peripheral interface slave with EasyDMA - Updated SPIS electrical parameters t_SPIS,VSO, t_SPIS,HSO, t_SPIS,SUSI, and t_SPIS,HSI.

The following content has been added or updated:

• Absolute maximum ratings - Increased Flash memory retention to 10 years at 85 °C.
• 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.
• Ordering information - Added new product options.

The following content has been added or updated:

• Recommended operating conditions - Added WLCSP light sensitivity information.
• FICR — Factory information configuration registers - Added registers PARTNO, HWREVISION and PRODUCTIONREVISION.
• UICR — User information configuration registers - Changed width of PSELRESETn port fields.
• SPIM - Polarity in SPI mode table corrected.
• COMP — Comparator - Documentation structure improvements/changes.
• Liability disclaimer updated - Directive 2011/65/EU (RoHS 2).

The following content has been added or updated:

• RADIO — 2.4 GHz Radio - Introduced 2 Mbps Bluetooth^® low energy mode.
• FICR — Factory information configuration registers - Updated INFO.PACKAGE register (new package added).
• UARTE - Corrected the pin configuration table.
• PPI — Programmable peripheral interconnect - Timing information corrected.
• Updated the liability disclaimer.

• Power and clock management, Current consumption: Ultra-low power.
• Power, Current consumption, sleep

Added or updated the following content:

• Cover - Added Key features.
• Pin assignments - Added WLCSP ball assignments. Moved GPIO usage restrictions here from GPIO/Notes on usage and restrictions.
• Absolute maximum ratings - Added environmental information for WLCSP to the table.
• Memory - Added QFAB and CIAA information to the table.
• FICR — Factory information configuration registers - Updated INFO.PACKAGE register.
• UICR — User information configuration registers - Updated APPROTECT register.
• Debug and trace - Updated DAP - Debug access port.
• POWER — Power supply - Updated Pin reset.
• CLOCK — Clock control - Updated information on external 32 kHz clock support.
• GPIO — General purpose input/output - Added GPIO located near the RADIO.
• RADIO — 2.4 GHz Radio - Updated Figure 29 and Interframe spacing.
• CCM - Updated SCRATCHPTR register.
• SPIM - Updated Master mode pin configuration.
• UARTE - Added RXDRDY and TXDRDY events.
• NFCT - Updated Electrical specifications.
• PWM — Pulse width modulation - Updated SEQ[1].REFRESH register.
• Mechanical specifications - Added WLCSP package.
• Ordering information - Updated with CIAA and QFAB information.
• Reference circuitry - QFAB information added. CIAA WLCSP schematics added.