STEVAL-MKI109V1 STMicroelectronics, STEVAL-MKI109V1 Datasheet - Page 53

• Manufacturer Part Number: STEVAL-MKI109V1
• Description: MOTEHRBOARD MEMS ADAPTER STM32
• Manufacturer: STMicroelectronics
• Series: MEMSr

Specifications of STEVAL-MKI109V1

• Main Purpose: Motherboard; Accelerometer, Gyroscope
• Embedded: Yes, MCU, 32-Bit
• Utilized Ic / Part: STM32 and MEMS Demo Boards
• Primary Attributes: DIL24 Socket for ST MEMS Adapter Boards
• Secondary Attributes: 3 V on-board linear voltage regulator
• Sensing Axis: Triple Axis
• Operating Voltage: 5 V
• Operating Current: 0.68 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: LIS344ALH
• Other names: 497-10682

STM32F102x8, STM32F102xB
Figure 22. I
1. Measurement points are done at CMOS levels: 0.3V
Table 39.
1. R
2. For speeds around 200 kHz, the tolerance on the achieved speed is of 5%. For other speed ranges, the
t f(SDA)
SDA
SCL
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
t w(SCKH)
S TART
SCL frequency (f
I²C bus
2
C bus AC waveforms and measurement circuit
t h(STA)
(kHz)
f
400
300
200
100
SCL
50
20
t r(SDA)
4 .7 kΩ
t r(SCK)
V DD
t w(SCKL)
Doc ID 15056 Rev 3
SCL
PCLK1
4 .7 kΩ
= I
2
t su(SDA)
C speed,
= 24 MHz, V
V DD
100 Ω
100 Ω
t f(SCK)
DD
t h(SDA)
and 0.7V
DD
= 3.3 V)
STM32F102xx
SDA
SCL
DD
t su(STA)
.
(1)(2)
I2C_CCR value
R
S TOP
S TART REPEATED
(1)
P
Electrical characteristics
0x803C
0x801E
0x00B4
0x8028
0x0168
0x0384
= 4.7 k
t su(STO)
t su(STA:STO)
S TART
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