Data Sheet

Page 38
nRF51822 Product Specification v3.1
7 Operating conditions
The operating conditions are the physical parameters that the chip can operate within as defined in
Ta bl e 20 .
Table 20 Operating conditions
Nominal operating conditions (NOC) - conditions under which the chip is operated and tested are the
typical (Typ.) values in Ta bl e 2 0.
Extreme operating conditions (EOC) - conditions under which the chip is operated and tested are the
minimum (Min.) and maximum (Max.) values in Ta bl e 2 0.
7.1 WLCSP light sensitivity
The WLCSP package variant is sensitive to visible and near infrared light which means a final product design
must shield the chip properly. The marking side is covered with a light absorbing film, while the side edges
of the chip and the ball side must be protected by coating or other means.
Symbol Parameter Notes Min. Typ. Max. Units
VDD Supply voltage, internal LDO setup 1.8 3.0 3.6 V
VDD Supply voltage, DC/DC converter setup 2.1 3.0 3.6 V
VDD
Supply voltage, low voltage mode
setup
1
1. DEC2 shall be connected to VDD in this mode.
1.75 1.8 1.95 V
t
R_VDD
Supply rise time (0 V to VDD)
2
2. The on-chip power-on reset circuitry may not function properly for rise times outside the specified interval.
100 ms
T
A
Operating temperature -25 25 75 °C