NetduinoPlus2 Netduino, NetduinoPlus2 Datasheet - Page 120

• Manufacturer Part Number: NetduinoPlus2
• Description: Development Boards & Kits - ARM NETDUINO PLUS 2
• Manufacturer: Netduino

Specifications of NetduinoPlus2

• Rohs: yes
• Product: Development Boards
• Tool Is For Evaluation Of: STM32F405RG
• Core: ARM Cortex M4
• Interface Type: I2C, SPI, UART, USB
• Operating Supply Voltage: 7.5 v to 9 V
• Data Bus Width: 32 bit
• Description/function: Arduino form factor
• Dimensions: 2.8 in x 2.1 in
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C

Electrical characteristics
120/180
Figure 43. USB OTG FS timings: definition of data signal rise and fall time
Table 58.
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
Table 59.
1. Guaranteed by design, not tested in production.
2. TBD stands for “to be defined”.
f
USB FS interface
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
HCLK
Symbol
V
Specification - Chapter 7 (version 2.0).
t
CRS
rfm
t
t
r
f
value to guarantee proper operation of
data lines
Differen tial
Rise time
Fall time
Rise/ fall time matching
Output signal crossover voltage
USB OTG FS electrical characteristics
USB FS clock timing parameters
V CRS
Parameter
V S S
(2)
(2)
Parameter
t f
8-bit ±10%
8-bit ±10%
Peripheral
Host
Doc ID 022152 Rev 3
Crossover
points
Driver characteristics
t r
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
(1)(2)
-
= 50 pF
= 50 pF
(1)
t
r
/t
f
14.2
TBD
TBD
TBD
TBD
Min
STM32F405xx, STM32F407xx
-
-
-
-
Min
1.3
90
4
4
Nominal
TBD
TBD
TBD
TBD
-
-
-
-
Max
110
2.0
20
20
TBD
TBD
TBD
TBD
TBD
TBD
Max
ai14137
-
-
Unit
ns
ns
%
V
MHz
MHz
MHz
Unit
ms
ms
µs
%
%