47
SWRS224A – FEBRUARY 2019 – REVISED AUGUST 2019
Product Folder Links:
Specifications
Copyright © 2019, Texas Instruments Incorporated
(1)
TI recommends using the lowest possible drive strength that is adequate for the applications. This recommendation minimizes the risk of
interference to the WLAN radio and reduces any potential degradation of RF sensitivity and performance. The default drive strength
setting is 6 mA.
5.11 GPIO Pins 25, 26, 42, and 44 (25°C)
(1)
PARAMETER
TEST CONDITIONS
MIN
NOM
MAX
UNIT
C
IN
Pin capacitance
7
pF
V
IH
High-level input voltage
0.65 × V
DD
V
DD
+ 0.5 V
V
V
IL
Low-level input voltage
–0.5
0.35 × V
DD
V
I
IH
High-level input current
50
nA
I
IL
Low-level input current
50
nA
V
OH
High-level output voltage
IL = 2 mA; configured I/O drive
strength = 2 mA;
2.4 V
≤
V
DD
< 3.6 V
V
DD
× 0.8
V
IL = 4 mA; configured I/O drive
strength = 4 mA;
2.4 V
≤
V
DD
< 3.6 V
V
DD
× 0.7
IL = 6 mA; configured I/O drive
strength = 6 mA;
2.4 V
≤
V
DD
< 3.6 V
V
DD
× 0.7
IL = 2 mA; configured I/O drive
strength = 2 mA;
2.3 V
≤
V
DD
< 2.4 V
V
DD
× 0.75
V
OL
Low-level output voltage
IL = 2 mA; configured I/O drive
strength = 2 mA;
2.4 V
≤
V
DD
< 3.6 V
V
DD
× 0.2
V
IL = 4 mA; configured I/O drive
strength = 4 mA;
2.4 V
≤
V
DD
< 3.6 V
V
DD
× 0.2
IL = 6 mA; configured I/O drive
strength = 6 mA;
2.4 V
≤
V
DD
< 3.6 V
V
DD
× 0.2
IL = 2 mA; configured I/O drive
strength = 2 mA;
2.3 V
≤
V
DD
< 2.4 V
V
DD
× 0.25
I
OH
High-level source
current, V
OH
= 2.4
2-mA drive
1.5
mA
4-mA drive
2.5
6-mA drive
3.5
I
OL
Low-level sink
current,
2-mA drive
1.5
mA
4-mA drive
2.5
6-mA drive
3.5
V
IL
nRESET
0.6
V
5.12 Pin Internal Pullup and Pulldown (25°C)
PARAMETER
TEST CONDITIONS
MIN
NOM
MAX
UNIT
I
OH
Pullup current
(V
DD
= 3.0 V)
10
µA
I
OL
Pulldown current
(V
DD
= 3.0 V)
10
µA