NetduinoPlus2 Netduino, NetduinoPlus2 Datasheet - Page 90

• 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
5.3.8
Table 29.
1. Guaranteed by design, not tested in production.
90/180
DuCy
Symbol
C
f
t
V
LSE_ext
V
t
t
t
w(LSE)
f(LSE)
r(LSE)
f(LSE)
in(LSE)
LSEH
LSEL
I
L
(LSE)
External clock source characteristics
High-speed external user clock generated from an external source
The characteristics given in
external clock source, and under ambient temperature and supply voltage conditions
summarized in
Table 28.
1. Guaranteed by design, not tested in production.
Low-speed external user clock generated from an external source
The characteristics given in
external clock source, and under ambient temperature and supply voltage conditions
summarized in
Low-speed external user clock characteristics
User External clock source
frequency
OSC32_IN input pin high level voltage
OSC32_IN input pin low level voltage
OSC32_IN high or low time
OSC32_IN rise or fall time
OSC32_IN input capacitance
Duty cycle
OSC32_IN Input leakage current
DuCy
Symbol
C
f
t
t
HSE_ext
V
V
t
t
w(HSE)
w(HSE)
r(HSE)
f(HSE)
in(HSE)
HSEH
HSEL
I
L
(HSE)
(1)
External user clock source
frequency
OSC_IN input pin high level voltage
OSC_IN input pin low level voltage
OSC_IN high or low time
OSC_IN rise or fall time
OSC_IN input capacitance
Duty cycle
OSC_IN Input leakage current
Parameter
High-speed external user clock characteristics
Table
Table
(1)
13.
13.
Parameter
(1)
(1)
(1)
Table 28
Table 29
Doc ID 022152 Rev 3
(1)
(1)
(1)
result from tests performed using an high-speed
result from tests performed using an low-speed
V
SS
Conditions
≤ V
IN
V
≤ V
SS
Conditions
DD
≤ V
IN
≤ V
0.7V
Min
V
450
DD
30
SS
-
-
-
-
DD
STM32F405xx, STM32F407xx
0.7V
Min
V
45
1
5
SS
-
-
-
32.768
DD
Typ
5
-
-
-
-
-
-
Typ
5
-
-
-
-
-
-
-
0.3V
1000
Max
V
0.3V
50
70
±1
DD
-
-
Max
V
50
10
55
±1
DD
DD
-
-
DD
Unit
kHz
MHz
Unit
µA
pF
ns
%
V
pF
µA
ns
%
V