Datasheet
Electrical characteristics STM32L476xx
218/270 DS10198 Rev 8
Figure 43. SD default mode
USB OTG full speed (FS) characteristics
The STM32L476xx USB interface is fully compliant with the USB specification version 2.0
and is USB-IF certified (for Full-speed device operation).
Note: When VBUS sensing feature is enabled, PA9 should be left at its default state (floating
input), not as alternate function. A typical 200
µA current consumption of the sensing block
(current to voltage conversion to determine the different sessions) can be observed on PA9
when the feature is enabled.
ai14888
CK
D, CMD
(output)
t
OVD
t
OHD
Table 102. USB OTG DC electrical characteristics
Symbol Parameter Conditions Min
(1)
Typ Max
(1)
Unit
V
DDUSB
USB OTG full speed transceiver
operating voltage
-3.0
(2)
-3.6V
V
DI
(3)
Differential input sensitivity Over VCM range 0.2 - -
V
V
CM
(3)
Differential input common mode
range
Includes V
DI
range 0.8 - 2.5
V
SE
(3)
Single ended receiver input
threshold
-0.8-2.0
V
OL
Static output level low R
L
of 1.5 k to 3.6 V
(4)
--0.3
V
V
OH
Static output level high R
L
of 15 k to V
SS
(4)
2.8 - 3.6
R
PD
(3)
Pull down resistor on PA11,
PA12 (USB_FS_DP/DM)
V
IN
= V
DD
14.25 - 24.8 k
R
PU
(3)
Pull Up Resistor on PA12
(USB_FS_DP)
V
IN
= V
SS
, during idle 0.9 1.25 1.575 k
Pull Up Resistor on PA12
(USB_FS_DP)
V
IN
= V
SS
during
reception
1.425 2.25 3.09 k
Pull Up Resistor on PA10
(OTG_FS_ID)
---14.5k
1. All the voltages are measured from the local ground potential.
2. The USB OTG full speed transceiver functionality is ensured down to 2.7 V but not the full USB full speed
electrical characteristics which are degraded in the 2.7-to-3.0 V V
DD
voltage range.
3. Guaranteed by design.
4.
R
L
is the load connected on the USB OTG full speed drivers.
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