STM32F407ZET6 Datasheet, PDF (115/167 Pages) STMicroelectronics – ARM Cortex-M4 32b MCU+FPU, 210DMIPS, up to 1MB Flash/192+4KB RAM

STM32F405xx, STM32F407xx
Electrical characteristics
USB HS characteristics
Table 58 shows the USB HS operating voltage.
Table 58. USB HS DC electrical characteristics
Symbol
Parameter
Input level V_DD Ethernet operating voltage
1. All the voltages are measured from the local ground potential.
Min.⁽¹⁾
2.7
Max.⁽¹⁾
3.6
Unit
V
Table 59. USB HS clock timing parameters⁽¹⁾
Parameter
Symbol
f_HCLK value to guarantee proper operation of
USB HS interface
Frequency (first transition)
8-bit ±10% F_{START_8BIT}
Frequency (steady state) ±500 ppm
F_STEADY
Duty cycle (first transition)
8-bit ±10% D_{START_8BIT}
Duty cycle (steady state) ±500 ppm
D_STEADY
Time to reach the steady state frequency and
duty cycle after the first transition
T_STEADY
Clock startup time after the
de-assertion of SuspendM
Peripheral
Host
T_{START_DEV}
T_{START_HOST}
PHY preparation time after the first transition
of the input clock
T_PREP
1. Guaranteed by design, not tested in production.
Min Nominal Max Unit
30
54
59.97
40
49.975
-
-
-
-
MHz
60
66 MHz
60
60.03 MHz
50
60
%
50 50.025 %
-
1.4 ms
-
5.6
ms
-
-
-
-
µs
Figure 43. ULPI timing diagram
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T3#
#ONTROL)N
5,0)?$)2
5,0)?.84
T3$
DATA)N
 BIT
#ONTROLOUT
5,0)?340
DATAOUT
 BIT
T(#
T($
T$#
T$$
T$#
AIC
Doc ID 022152 Rev 2
115/167