Data Sheet

Page 65
nRF51822 Product Specification v3.1
8.23 General Purpose I/O (GPIO) specifications
Table 62 General Purpose I/O (GPIO) specifications
8.24 Low Power Comparator (LPCOMP) specifications
Table 63 Low power comparator specifications
Symbol Parameter (condition) Note Min. Typ. Max. Units
V
IH
Input high voltage. 0.7 VDD VDD V
V
IL
Input low voltage. VSS 0.3 VDD V
V
OH
Output high voltage (std. drive, 0.5 mA). VDD-0.3 VDD V
V
OH
Output high voltage (high-drive, 5 mA).
1
1. Maximum number of pins with 5 mA high drive is 3.
VDD-0.3 VDD V
V
OL
Output low voltage (std. drive, 0.5 mA). VSS 0.3 V
V
OL
Output low voltage (high-drive, 5 mA). VSS 0.3 V
R
PU
Pull-up resistance. 11 13 16 k
R
PD
Pull-down resistance. 11 13 16 k
Symbol Description Min. Typ. Max. Units
Test
level
I
LPC
Run current for LPCOMP. 0.5 µA 1
t
LPCANADETOFF
Time from VIN crossing to ANADETECT signal
generated when in System OFF.
15
1
1. For 50 mV overdrive
µs 1
t
LPCANADETON
Time from VIN crossing to ANADETECT signal
generated when in System ON.
15
1
µs 1
t
LPCOMPSTARTUP
Startup time for the Low Power Comparator. 40 µs 1