EFM8UB2 Datasheet, PDF (16/50 Pages) Silicon Laboratories – The EFM8UB2 highlighted features are listed below

Parameter
Symbol
Input Low Voltage
V_IL
Pin Capacitance
C_IO
Weak Pull-Up Current
I_PU
(V_IN = 0 V)
Input Leakage (Pullups off or Ana- I_LK
log)
Input Leakage Current with V_IN
I_LK
above V_DD
Test Condition
V_DD = 3.6
GND < V_IN < V_DD
V_DD < V_IN < V_DD+2.0 V
Table 4.14. USB Transceiver
Parameter
Symbol Test Condition
Transmitter
Output High Voltage
V_OH
V_DD ≥3.0V
Output Low Voltage
V_OL
V_DD ≥3.0V
Output Crossover Point
V_CRS
Output Impedance
Z_DRV
Driving High
Driving Low
Pull-up Resistance
R_PU
Full Speed (D+ Pull-up)
Low Speed (D- Pull-up)
Output Rise Time
T_R
Low Speed
Full Speed
Output Fall Time
T_F
Low Speed
Full Speed
Receiver
Differential Input
Sensitivity
V_DI
| (D+) - (D-) |
Differential Input Common Mode V_CM
Range
Input Leakage Current
I_L
Pullups Disabled
Refer to the USB Specification for timing diagrams and symbol definitions.
Min
—
—
-50
-1
0
Min
2.8
—
1.3
—
—
1.425
75
4
75
4
0.2
0.8
—
EFM8UB2 Data Sheet
Electrical Specifications
Typ
Max
Unit
—
0.8
V
7
—
pF
-15
—
μA
—
1
μA
5
150
μA
Typ
Max
Unit
—
—
V
—
0.8
V
—
2.0
V
38
—
Ω
38
—
1.5
1.575
kΩ
—
300
ns
—
20
ns
—
300
ns
—
20
ns
V
—
—
V
—
2.5
V
<1.0
—
μA
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