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STE2002DIE2 数据表(PDF) 41 Page - STMicroelectronics |
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STE2002DIE2 数据表(HTML) 41 Page - STMicroelectronics |
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41 / 51 page ![]() 41/51 STE2002 Figure 49. I2C-bus timings ELECTRICAL CHARACTERISTICS AC OPERATION (VDD1 = 1.7 to 3.6V; VDD2 = 1.75 to 4.2V; Vss1,2 = 0V; VLCD = 4.5 to 11V; Tamb =-40 to 85°C; unless otherwise specified) Symbol Parameter Test Condition Min. Typ. Max. Unit I2C BUS INTERFACE (See note 4) FSCL SCL Clock Frequency Fast Mode DC 400 kHz High Speed Mode; Cb=100pF (max);VDD1=2 DC 3.4 MHz High Speed Mode; Cb=400pF (max); VDD1=2 DC 1.7 MHz Fast Mode; VDD1=1.7V 400 KHz TSU;STA Set-up time (repeated) START condition Note 2, 3, Cb=100pF 160 ns THD;STA Hold time (repeated) START condition Note 2, 3, Cb=100pF 160 ns TLOW LOW period of the SCLH clock Note 2, 3, Cb=100pF 160 ns THIGH HIGH period of the SCLH clock Note 2, 3, Cb=100pF 60 ns TSU;DAT Data set-up time Note 2, 3, Cb=100pF 10 ns THD;DAT Data hold time Note 2, 3; Cb=100pF 40 ns Tr;CL Rise time of SCLH signal Note 2, 3; Cb=100pF 10 ns TrCL1 Rise time of SCLH signal after a repeated START condition and after an acknowledge bit Note 2, 3, Cb=100pF 10 ns TfCL Fall time of SCLH signal Note 2, 3, Cb=100pF 10 ns TrDA Rise time of SDAH signal Note 2, 3, 4, Cb=100pF 10 ns TfDA Fall time of SDAH signal Note 2, 3, 4, Cb=100pF 10 80 ns TrDA Rise time of SDAH signal Note 2, 3, 4, Cb=400pF 20 ns TfDA Fall time of SDAH signal Note 2, 3, 4, Cb=400pF 20 160 ns TSU;STO Set-up time for STOP condition Note 2, 3, Cb=100pF 160 ns Cb Capacitive load for SDAH and SCLH 100 400 pF Cb Capacitive load for SDAH + SDA line and SCLH + SCL line 400 pF Sr SCLH SDAH D00IN1153 tfDA trDA tSU;STA tHD;STA tHD;DAT tSU;DAT tLOW trCL1 trCL tHIGH tHIGH tLOW Sr P trCL1 tfCL (1) (1) = MCS current source pull-up = Rp resistor pull-up |
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