NetduinoPlus2 Netduino, NetduinoPlus2 Datasheet - Page 24

• 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

Description
2.2.16
24/180
All packages, except for the LQFP64 and LQFP100, have an internal reset controlled
through the PDR_ON signal.
Voltage regulator
The regulator has eight operating modes:
●
●
●
●
Regulator ON
●
●
Regulator ON/internal reset ON
–
–
–
Regulator ON/internal reset OFF
–
–
–
Regulator OFF/internal reset ON
Regulator OFF/internal reset OFF
Regulator ON/internal reset ON
The regulator ON/internal reset ON mode is always enabled on LQFP64 and LQFP100
package.
On LQFP144 package, this mode is activated by setting PDR_ON to V
On UFBGA176 package, the internal regulator must be activated by connecting
BYPASS_REG to V
On LQFP176 packages, the internal reset must be activated by connecting PDR_ON to
V
There are three low-power modes:
–
–
–
Regulator ON/internal reset OFF
The regulator ON with internal reset OFF mode is not available on LQFP64 and
LQFP100 packages.
On LQFP144, and LQFP176 packages, the internal reset is controlled by applying an
inverted reset signal to PDR_ON pin.
On UFBGA176 package, the internal regulator must be activated by connecting
BYPASS_REG to V
On LQFP176 packages, the internal reset must be activated by applying an inverted
reset signal to PDR_ON pin.
V
70 °C temperature range and an inverted reset signal is applied to PDR_ON.
The NRST pin should be controlled by an external reset controller to keep the device
under reset when V
DD
DD
.
/V
Main regulator mode (MR)
Low power regulator (LPR)
Power-down
Main regulator mode (MR)
Low power regulator (LPR)
Power-down
MR is used in the nominal regulation mode (Run)
LPR is used in the Stop modes
Power-down is used in Standby mode: the regulator output is in high impedance:
the kernel circuitry is powered down, inducing zero consumption (but the contents
of the registers and SRAM are lost).
DDA
minimum value of 1.7 V is obtained when the device operates in the 0 to
SS,
SS
DD
.
is below 1.8 V (see
and PDR_ON to V
Doc ID 022152 Rev 3
DD
Figure
.
7).
STM32F405xx, STM32F407xx
DD
.