NetduinoPlus2 Netduino, NetduinoPlus2 Datasheet - Page 113

• 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

STM32F405xx, STM32F407xx
Figure 37. I
1. Measurement points are done at CMOS levels: 0.3V
Table 53.
1. R
2. For speeds around 200 kHz, the tolerance on the achieved speed is of ±5%. For other speed ranges, the
tolerance on the achieved speed ±2%. These variations depend on the accuracy of the external
components used to design the application.
P
= External pull-up resistance, f
SCL frequency (f
2
C bus AC waveforms and measurement circuit
f
SCL
400
300
200
100
50
20
(kHz)
Ω
Doc ID 022152 Rev 3
SCL
PCLK1
= I
2
C speed,
= 42 MHz.,V
Ω
DD
Ω
Ω
and 0.7V
DD
= 3.3 V)
DD
.
(1)(2)
I2C_CCR value
R
P
Electrical characteristics
0x012C
0x02EE
0x8019
0x8021
0x8032
0x0096
= 4.7 kΩ
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