STR750FXX STMICROELECTRONICS [STMicroelectronics], STR750FXX Datasheet - Page 70

• Manufacturer Part Number: STR750FXX
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Electrical parameters
5.3.11
70/81
USB characteristics
The USB interface is USB-IF certified (Full Speed).
Table 42.
Table 43.
1. All the voltages are measured from the local ground potential.
2. It is important to be aware that the DP/DM pins are not 5 V tolerant. As a consequence, in case of a a
3. R
Figure 41. USB: data signal rise and fall time
Table 44.
Symbol
Symbol
shortcut with Vbus (typ: 5.0V), the protection diodes of the DP/DM pins will be direct biased . This will not
damage the device if not more than 50 mA is sunk for longer than 24 hours but the reliability may be
affected.
V
V
V
V
V
t
Symbol
L
STARTUP
CM
OH
t
t
SE
OL
DI
r
f
is the load connected on the USB drivers
V
V
SS
Data Lines
Differential
CRS
USB startup time
USB characteristics
USB: Full speed electrical characteristics
Differential Input Sensitivity
Differential Common Mode
Static Output Level High
Static Output Level Low
Single Ended Receiver
USB transceiver startup time
Parameter
Threshold
Rise time
Parameter
Fall Time
Range
t
f
Parameter
USB DC Electrical Characteristics
Crossover
(1)
1)
points
Driver characteristics:
Output Levels
Input Levels
STR750Fxx STR751Fxx STR752Fxx STR755Fxx
t
r
R
R
L
Includes V
L
of 1.5 k
Conditions
of 15 k
C
C
Conditions
L
L
I(DP, DM)
=50 pF
=50 pF
Conditions
Ω
Ω
DI
to 3.6V
to V
range
SS
(3)
(3)
Min
4
4
Min.
0.2
0.8
1.3
2.8
(1)(2)
Max
1
Max
20
20
Max.
2.0
0.3
3.6
2.5
(1)(2)
Unit
Unit
µs
ns
ns
Unit
V
V