Data Sheet

4.4 Digital I/O Specifications
Table 4.4. Digital I/O Specifications
Parameter Symbol Test Condition Min Typ Max Unit
Voltage input high (relative to
VBAT)
V
IH
70 — — %
Voltage input low (relative to
VBAT)
V
IL
— — 30 %
Logic low output voltage (rel-
ative to VBAT)
V
OL
PTA Pins, Sinking 5 mA — — 25 %
GPIO Pins, Sinking 20 mA, DRIV-
ESTRENGTH = STRONG
— — 20 %
Logic high output voltage
(relative to VBAT)
V
OH
PTA Pins, Sourcing 5 mA 80 — — %
GPIO Pins, Sourcing 20 mA,
DRIVESTRENGTH = STRONG
80 — — %
Input leakage current I
Leak
All I/O when GPIO voltage ≤
VBAT
— 1 — nA
5 V Tolerant I/O (PF0, PF1, PF10,
PF11) when VBAT < GPIO volt-
age ≤ VBAT + 2 V
— 3.3 15 µA
Pullup resistance R
PU
30 43 65 kΩ
Pulldown resistance R
PD
30 43 65 kΩ
Output fall time from V
OH
to
V
OL
T
OF
50 pF load — 15 TBD ns
Output rise time from V
OL
to
V
OH
T
OR
50 pF load — 15 TBD ns
Required external series re-
sistor on USB D+ and D-
R
USB
— 33 +/-10% — Ω
WGM160P Wi-Fi
®
Module Data Sheet
Electrical Specifications
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