STM32L-DISCOVERY STMicroelectronics, STM32L-DISCOVERY Datasheet - Page 106

• Manufacturer Part Number: STM32L-DISCOVERY
• Description: BOARD, EVAL, STM32L-DISCOVERY
• Manufacturer: STMicroelectronics
• Series: STM32r
• Type: MCUr

Specifications of STM32L-DISCOVERY

• Kit Contents: Board, Debugger, Programmer And Compiler
• Features: 128KB Flash Plus Multiple Timers, Analogue Peripherals
• Silicon Manufacturer: ST Micro
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: STM32
• Silicon Family Name: STM32F1xx
• Rohs Compliant: Yes
• Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: STM32L
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical characteristics
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Figure 44. USB OTG FS timings: definition of data signal rise and fall time
Table 53.
1. Guaranteed by design, not tested in production.
2. Measured from 10% to 90% of the data signal. For more detailed informations, please refer to USB
USB HS characteristics
Table 54
Table 54.
1. All the voltages are measured from the local ground potential.
Table 55.
1. Guaranteed by design, not tested in production.
Frequency (first transition)
Frequency (steady state) ±500 ppm
Duty cycle (first transition)
Duty cycle (steady state) ±500 ppm
Time to reach the steady state frequency and
duty cycle after the first transition
Clock startup time after the
de-assertion of SuspendM
PHY preparation time after the first transition
of the input clock
Input level
Symbol
V
Specification - Chapter 7 (version 2.0).
t
CRS
rfm
t
t
r
f
Symbol
shows the USB HS operating voltage.
data lines
Differen tial
Rise time
Fall time
Rise/ fall time matching
Output signal crossover voltage
USB OTG FS electrical characteristics
USB HS DC electrical characteristics
Clock timing parameters
Parameter
V CRS
V S S
V
DD
(2)
(2)
Parameter
Ethernet operating voltage
(1)
t f
8-bit ±10%
8-bit ±10%
Peripheral
Host
Doc ID 15818 Rev 6
Crossover
points
Driver characteristics
t r
Parameter
F
F
D
D
T
T
T
T
START_8BIT
STEADY
STEADY
START_DEV
START_HOST
PREP
START_8BIT
STEADY
Symbol
Conditions
C
C
L
L
= 50 pF
= 50 pF
(1)
t
r
/t
f
49.975
59.97
Min
54
40
STM32F205xx, STM32F207xx
-
-
-
-
Min
1.3
90
4
4
Min.
2.7
Nominal
(1)
60
60
50
50
-
-
-
-
Max
110
2.0
20
20
Max.
50.025
60.03
3.6
Max
1.4
5.6
66
60
ai14137
-
-
(1)
Unit
ns
ns
%
V
MHz
MHz
Unit
Unit
ms
ms
µs
%
%
V