NetduinoPlus2 Netduino, NetduinoPlus2 Datasheet - Page 74

• 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
5.3.2
5.3.3
5.3.4
74/180
VCAP1/VCAP2 external capacitor
Stabilization for the main regulator is achieved by connecting an external capacitor C
the VCAP1/VCAP2 pins. C
Figure 21. External capacitor C
1. Legend: ESR is the equivalent series resistance.
Table 15.
Operating conditions at power-up / power-down (regulator ON)
Subject to general operating conditions for T
Table 16.
Operating conditions at power-up / power-down (regulator OFF)
Subject to general operating conditions for T
Table 17.
1. To reset the internal logic at power-down, a reset must be applied on pin PA0 when V
1.08 V.
Symbol
Symbol
Symbol
t
CEXT
t
VCAP
t
ESR
VDD
VDD
VCAP1/VCAP2 operating conditions
Operating conditions at power-up / power-down (regulator ON)
Operating conditions at power-up / power-down (regulator OFF)
V
V
V
rate
V
rate
V
V
DD
DD
CAP_1
CAP_1
DD
DD
Capacitance of external capacitor
rise time rate
fall time rate
rise time rate
fall time rate
and V
and V
ESR of external capacitor
Parameter
Parameter
EXT
ESR
CAP_2
CAP_2
Parameter
Doc ID 022152 Rev 3
is specified in
rise time
fall time
EXT
Power-up
Power-down
Power-up
Power-down
A
A
Table
.
.
R Leak
C
Conditions
15.
Min
20
20
STM32F405xx, STM32F407xx
Conditions
Max
∞
∞
2.2 µF
< 2 Ω
DD
Min
MS19044V1
20
20
20
20
reach below
Max
∞
∞
∞
∞
(1)
Unit
µs/V
EXT
µs/V
Unit
to