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STM32F303RE 数据表(PDF) 131 Page - STMicroelectronics

部件名 STM32F303RE
功能描述  ARM Cortex-M4 32b MCUFPU, up to 512KB Flash, 80KB SRAM, FSMC, 4 ADCs, 2 DAC ch., 7 comp, 4 Op-Amp, 2.0-3.6 V
PDF  173 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STM32F303RE 数据表(HTML) 131 Page - STMicroelectronics

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STM32F303xD STM32F303xE
Electrical characteristics
151
USB characteristics
Figure 47. USB timings: definition of data signal rise and fall time
Table 76. USB startup time
Symbol
Parameter
Max
Unit
tSTARTUP(1)
1. Guaranteed by design, not tested in production.
USB transceiver startup time
1
µs
Table 77. USB DC electrical characteristics
Symbol
Parameter
Conditions
Min.(1)
1. All the voltages are measured from the local ground potential.
Max.(1)
Unit
Input levels
VDD
USB operating voltage(2)
2. To be compliant with the USB 2.0 full-speed electrical specification, the USB_DP (D+) pin should be pulled
up with a 1.5 k
Ω resistor to a 3.0-to-3.6 V voltage range.
-3.0(3)
3. The STM32F303xD/E USB functionality is ensured down to 2.7 V but not the full USB electrical
characteristics which are degraded in the 2.7-to-3.0 V VDD voltage range.
3.6
V
VDI(4)
4. Guaranteed by design, not tested in production.
Differential input sensitivity
I(USB_DP, USB_DM)
0.2
-
V
VCM(4) Differential common mode range
Includes VDI range
0.8
2.5
VSE(4)
Single ended receiver threshold
-
1.3
2.0
Output levels
VOL
Static output level low
RL of 1.5 kΩ to 3.6 V(5)
5. RL is the load connected on the USB drivers.
-0.3
V
VOH
Static output level high
RL of 15 kΩ to VSS(5)
2.8
3.6
Table 78. USB: full-speed electrical characteristics(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Driver characteristics
tr
Rise time(2)
CL = 50 pF
4
-
20
ns
tf
Fall time(2)
CL = 50 pF
4
-
20
ns



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