STM32F101RD STMicroelectronics, STM32F101RD Datasheet - Page 88

• Manufacturer Part Number: STM32F101RD
• Description: Mainstream Access line, ARM Cortex-M3 MCU with 384 Kbytes Flash, 36 MHz CPU
• Manufacturer: STMicroelectronics

Specifications of STM32F101RD

• Core: ARM 32-bit Cortex™-M3 CPU
• Conversion Range: 0 to 3.6 V
• Peripherals Supported: timers, ADC, DAC, SPIs, I2Cs and USARTs
• Systick Timer: a 24-bit downcounter

Electrical characteristics
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Figure 45. I
1. Measurement points are done at CMOS levels: 0.3V
Table 52.
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
(kHz)
f
400
300
200
100
SCL
50
20
SCL
Doc ID 14610 Rev 8
PCLK1
= I
2
C speed,
= 36 MHz, V
STM32F101xC, STM32F101xD, STM32F101xE
DD
and 0.7V
DD
= 3.3 V)
DD
.
(1)(2)
I2C_CCR value
R
(1)
P
0x803C
0x801E
0x00B4
0x8028
0x0168
0x0384
= 4.7 kΩ