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STM32L151VD Datasheet(PDF) 110 Page - STMicroelectronics

Part # STM32L151VD
Description  Ultra-low-power 32-bit MCU ARM-based Cortex-M3, 384KB Flash
PDF  140 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L151VD Datasheet(HTML) 110 Page - STMicroelectronics

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Electrical characteristics
STM32L151xD STM32L152xD
110/140
Doc ID 022027 Rev 6
USB characteristics
The USB interface is USB-IF certified (full speed).
Figure 34.
USB timings: definition of data signal rise and fall time
Table 60.
USB startup time
Symbol
Parameter
Max
Unit
tSTARTUP
(1)
1.
Guaranteed by design, not tested in production.
USB transceiver startup time
1
µs
Table 61.
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
3.0
3.6
V
VDI
(2)
2.
Guaranteed by characterization, not tested in production.
Differential input sensitivity
I(USB_DP, USB_DM)
0.2
-
V
VCM
(2)
Differential common mode range Includes VDI range
0.8
2.5
VSE
(2)
Single ended receiver threshold
1.3
2.0
Output levels
VOL
(3)
3.
Tested in production.
Static output level low
RL of 1.5 kΩ to 3.6 V
(4)
4.
RL is the load connected on the USB drivers.
-0.3
V
VOH
(3)
Static output level high
RL of 15 kΩ to VSS
(4)
2.8
3.6
Table 62.
USB: full speed electrical characteristics
Driver characteristics(1)
Symbol
Parameter
Conditions
Min
Max
Unit
tr
Rise time(2)
CL = 50 pF
420
ns
tf
Fall Time(2)
CL = 50 pF
4
20
ns
trfm
Rise/ fall time matching
tr/tf
90
110
%
VCRS
Output signal crossover voltage
1.3
2.0
V
ai14137
tf
Differen tial
Data L ines
VSS
VCRS
tr
Crossover
points



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