Ultralow power ARM-based 32-bit MCU with 384 Kbytes Flash ... - Keil
Ultralow power ARM-based 32-bit MCU with 384 Kbytes Flash ... - Keil
Ultralow power ARM-based 32-bit MCU with 384 Kbytes Flash ... - Keil
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Electrical characteristicsSTM<strong>32</strong>L162VD, STM<strong>32</strong>L162ZD, STM<strong>32</strong>L162QD, STM<strong>32</strong>L162RDFigure 25.I 2 C bus AC waveforms and measurement circuit 1. Measurement points are done at CMOS levels: 0.3V DD and 0.7V DD .Table 53. SCL frequency (f PCLK1 = <strong>32</strong> MHz, V DD = 3.3 V) (1)(2)f SCL (kHz)I2C_CCR valueR P = 4.7 kΩ400 0x801B300 0x8024200 0x8035100 0x00A050 0x014020 0x0<strong>32</strong>01. R P = External pull-up resistance, f SCL = I 2 C speed.2. For speeds around 200 kHz, the tolerance on the achieved speed is of ±5%. For other speed ranges, thetolerance on the achieved speed is ±2%. These variations depend on the accuracy of the externalcomponents used to design the application.96/124 Doc ID 022268 Rev 2
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