STM32F101X6_08 STMICROELECTRONICS [STMicroelectronics], STM32F101X6_08 Datasheet - Page 54

• Manufacturer Part Number: STM32F101X6_08
• Description: Access line, advanced ARM-based 32-bit MCU with Flash memory, six 16-bit timers, ADC and seven communication interfaces
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Electrical characteristics
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Figure 23. I
1. Measurement points are done at CMOS levels: 0.3V
Table 39.
1. TBD = to be determined.
2. R
3. 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)
SCL
PCLK1
4 .7 kΩ
= I
2
t su(SDA)
C speed,
= 36 MHz, V
V DD
100 Ω
100 Ω
t f(SCK)
DD
t h(SDA)
and 0.7V
DD
= 3.3 V)
STM32F101
SDA
SCL
DD
t su(STA)
.
(1)(2)(3)
I2C_CCR value
R
S TOP
S TART REPEATED
(1)
P
= 4.7 kΩ
TBD
TBD
TBD
TBD
TBD
TBD
t su(STO)
STM32F101xx
t su(STA:STO)
S TART
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