STM32F105XX Datasheet, PDF (65/95 Pages) STMicroelectronics – Connectivity line, ARM-based 32-bit MCU with 64/256 KB Flash, USB OTG, Ethernet, 10 timers, 2 CANs, 2 ADCs, 14 communication interfaces

STM32F105xx, STM32F107xx
Electrical characteristics
USB OTG FS characteristics
The USB OTG interface is USB-IF certified (Full-Speed).
Table 44. USB OTG FS startup time
Symbol
Parameter
t_STARTUP(1)
USB OTG FS transceiver startup time
1. Guaranteed by design, not tested in production.
Max
Unit
1
µs
Table 45. USB OTG FS DC electrical characteristics
Symbol
Parameter
Conditions
Min.⁽¹⁾ Typ. Max.⁽¹⁾ Unit
Input
levels
V_DD
USB OTG FS operating
voltage
V_DI(3) Differential input sensitivity
V_CM(3)
Differential common mode
range
I(USBDP, USBDM)
Includes V_DI range
3.0⁽²⁾
0.2
0.8
3.6 V
2.5
V
V_SE(3)
Single ended receiver
threshold
Output ^VOL
levels _VOH
R_PD
Static output level low
Static output level high
Pull-down resistance on
PA11, PA12
Pull-down resistance on
PA9
1.3
2.0
R_L of 1.5 k: to 3.6 V⁽⁴⁾
R_L of 15 k: to V_SS(4) 2.8
0.3
V
3.6
V_IN = V_DD
17 21 24
0.65 1.1 2.0 _k:
Pull-up resistance on PA12
R_PU
Pull-up resistance on PA9
V_IN = V_SS
V_IN = V_SS
1.5 1.8 2.1
0.25 0.37 0.55
1. All the voltages are measured from the local ground potential.
2. The STM32F105xx and STM32F107xx 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. Guaranteed by design, not tested in production.
4. R_L is the load connected on the USB OTG FS drivers
Figure 25. USB OTG FS timings: definition of data signal rise and fall time
Differen tial
data lines
VCR _S
Crossover
points
VS _S
tf
tr
ai14137
Doc ID 15274 Rev 4
65/95