Usb transceiver electrical characteristics – Silicon Laboratories C8051F347 User Manual
Page 187
Rev. 1.3
187
C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D
Table 16.4. USB Transceiver Electrical Characteristics
V
DD
= 3.0 to 3.6 V, –40 to +85 °C unless otherwise specified
Parameters
Symbol
Conditions
Min
Typ
Max
Units
Transmitter
Output High Voltage
V
OH
2.8
V
Output Low Voltage
V
OL
0.8
V
Output Crossover Point
V
CRS
1.3
2.0
V
Output Impedance
Z
DRV
Driving High
Driving Low
38
38
Pull-up Resistance
R
PU
Full Speed (D+ Pull-up)
Low Speed (D– Pull-up)
1.425
1.5
1.575
k
Output Rise Time
T
R
Low Speed
Full Speed
75
4
300
20
ns
Output Fall Time
T
F
Low Speed
Full Speed
75
4
300
20
ns
Receiver
Differential Input
Sensitivity
V
DI
| (D+) – (D–) |
0.2
V
Differential Input Common
Mode Range
V
CM
0.8
2.5
V
Input Leakage Current
I
L
Pullups Disabled
<1.0
µA
Note: Refer to the USB Specification for timing diagrams and symbol definitions.