Data Sheet

NINA-B41-data sheet
View Vertical polarization Horizontal polarization Total (Vertical + Horizontal)
Bottom view, YZ
plane negative X
direction
Table 15: NINA-B4x6 antenna radiation patterns
4.2.9Digital pins
Pin name Parameter Min Typ Max Unit Remarks
Input characteristic: Low-
level input
0 0.3*VCC V
Input characteristic: high-
level input
0.7*VCC VCC V
Output characteristic: Low-
level output
0 0.4 V Standard drive strength
Output characteristic: High-
level output
VCC-0.4 VCC V Standard drive strength
Sink/Source current 1 2 4 mA Standard drive strength
Rise/Fall time 9 – 25 ns Standard drive strength, depending on
load capacitance
Input pull-up resistance 11 13 16
kΩ
Can be added to any GPIO pin configured
as input
Any digital
pin
Input pull-down resistance 11 13 16
kΩ
Can be added to any GPIO pin configured
as input
GPIO_28,
GPIO_29
Leakage current 1 10 µA When not configured for NFC and driven
to different logic levels
Table 16: Digital pin characteristics
UBX-20035327 - R01
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4Electrical specifications Page 20 of 34
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