Datasheet

STM32F405xx, STM32F407xx Electrical characteristics
Doc ID 022152 Rev 2 113/167
USB OTG FS characteristics
This interface is present in both the USB OTG HS and USB OTG FS controllers.
Table 54. USB OTG FS startup time
Symbol Parameter Max Unit
t
STARTUP
(1)
1. Guaranteed by design, not tested in production.
USB OTG FS transceiver startup time 1 µs
Table 55. USB OTG FS DC electrical characteristics
Symbol Parameter Conditions Min.
(1)
1. All the voltages are measured from the local ground potential.
Typ. Max.
(1)
Unit
Input
levels
V
DD
USB OTG FS operating
voltage
3.0
(2)
2. The STM32F405xx and STM32F407xx USB OTG FS functionality is ensured down to 2.7 V but not the full
USB OTG FS electrical characteristics which are degraded in the 2.7-to-3.0 V V
DD
voltage range.
-3.6V
V
DI
(3)
3. Guaranteed by design, not tested in production.
Differential input sensitivity
I(USB_FS_DP/DM,
USB_HS_DP/DM)
0.2 - -
VV
CM
(3)
Differential common mode
range
Includes V
DI
range 0.8 - 2.5
V
SE
(3)
Single ended receiver
threshold
1.3 - 2.0
Output
levels
V
OL
Static output level low R
L
of 1.5 kΩ to 3.6 V
(4)
4.
R
L
is the load connected on the USB OTG FS drivers
--0.3
V
V
OH
Static output level high R
L
of 15 kΩ to V
SS
(4)
2.8 - 3.6
R
PD
PA11, PA12, PB14, PB15
(USB_FS_DP/DM,
USB_HS_DP/DM)
V
IN
= V
DD
17 21 24
kΩ
PA9, PB13
(OTG_FS_VBUS,
OTG_HS_VBUS)
0.65 1.1 2.0
R
PU
PA12, PB15 (USB_FS_DP,
USB_HS_DP)
V
IN
= V
SS
1.5 1.8 2.1
PA9, PB13
(OTG_FS_VBUS,
OTG_HS_VBUS)
V
IN
= V
SS
0.25 0.37 0.55