Electrical characteristics
STM32L162VC, STM32L162RC
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DocID022881 Rev 10
USB characteristics
The USB interface is USB-IF certified (full speed).
Figure 22. USB timings: definition of data signal rise and fall time
Table 51. USB startup time
Symbol
Parameter
Max
Unit
t
STARTUP
(1)
1. Guaranteed by design.
USB transceiver startup time
1
µs
Table 52. USB DC electrical characteristics
Symbol
Parameter
Conditions
Min.
(1)
1. All the voltages are measured from the local ground potential.
Unit
Input levels
V
DD
USB operating voltage
-
3.0
3.6
V
V
DI
(2)
2. Guaranteed by characterization results.
Differential input sensitivity
I(USB_DP, USB_DM)
0.2
-
V
V
CM
Differential common mode range Includes V
DI
range
0.8
2.5
V
SE
Single ended receiver threshold
-
1.3
2.0
Output levels
V
OL
(3)
3. Guaranteed by test in production.
Static output level low
R
L
of 1.5
k
Ω
to 3.6 V
(4)
4. R
L
is the load connected on the USB drivers.
-
0.3
V
V
Static output level high
R
L
of 15
k
Ω
to V
SS
2.8
3.6
Table 53. USB: full speed electrical characteristics
Driver characteristics
(1)
Symbol
Parameter
Conditions
Min
Max
Unit
t
r
Rise time
(2)
C
L
= 50 pF
4
20
ns
t
f
Fall Time
C
L
= 50 pF
4
20
ns
DL
WI
66
WU
9
&56
9
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