NRF52820-QDAA-R datasheet(109/437 Pages) NORDIC

109 / 437 page

Peripherals

6.4.10 Electrical specification

6.4.10.1 Timing specification

Symbol

Description

Min.

Typ.

Max.

Units

tkgen

Time needed for keystream generation (given priority access

to destination RAM block).

µs

6.5 COMP — Comparator

The comparator (COMP) compares an input voltage (VIN+) against a second input voltage (VIN-). VIN+ can

be derived either from an analog input pin (AIN0-AIN6) or VDDH/5. VIN- can be derived from multiple

sources depending on the operation mode of the comparator.

Main features of the comparator are:

• Input range from 0 V to VDD

• Single-ended mode

• Fully flexible hysteresis using a 64-level reference ladder

• Differential mode

• Configurable hysteresis

• Reference inputs (VREF):

• VDD

• External reference from AIN0 to AIN7 (between 0 V and VDD)

• Internal references 1.2 V, 1.8 V, and 2.4 V

• Three speed/power consumption modes: low-power, normal, and high-speed

• Event generation on output changes

• UP event on VIN- > VIN+

• DOWN event on VIN- < VIN+

• CROSS event on VIN+ and VIN- crossing

• READY event on core and internal reference (if used) ready

4463_156 v1.0

109

NRF52820-QDAA-R Datasheet(PDF) 109 Page - Nordic Semiconductor