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ST25R3918 Datasheet(PDF) 132 Page - STMicroelectronics |
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ST25R3918 Datasheet(HTML) 132 Page - STMicroelectronics |
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132 / 141 page  Electrical characteristics ST25R3918 132/141 DS13490 Rev 2 5.6 I2C interface characteristics Transition from 100 kHz / 400 kHz / 1 MHz mode to 3.4 MHz mode (High speed mode) is done via Master code 00001XXX, as described in the I2C specification. Table 116. AC measurement conditions Symbol Parameter Min Max Unit CBUS Load capacitance 100 pF - SCL input rise/fall time, SDA input fall time - 50 ns Table 117. AC measurement conditions - I2C configuration Mode Rate Setting S 100 kHz i2c_thd = 00b, io_drv_lvl = 1b F 400 kHz i2c_thd = 01b, io_drvl_lvl = 1b F+ 1000 kHz i2c_thd = 11b, Io_drv_lvl = 1b HS 3400 kHz i2c_thd = 11b, io_drv_lvl = 1b Table 118. Input parameters(1) 1. Evaluated by characterization, not tested in production. Symbol Parameter Conditions Min Max Unit CIN Input capacitance (SDA) - - 15 pF Input capacitance (SCL) - - 15 Table 119. DC characteristics(1) 1. Evaluated by characterization, not tested in production. Symbol Parameter Conditions (in addition to those in Table 116 and Table 117) Min Max Unit ILI Input leakage current (SCL, SDA) VIN = VSS or VCC, device in Standby mode -± 10 µA ILO Output leakage current SDA in Hi-Z, external voltage applied on SDA: VSS or VCC -± 10 VIL Input low voltage (SCL, SDA) - -0.4 0.2 VDD_IO V VIH Input high voltage (SCL, SDA) - 0.8 VDD_IO VDD_IO + 0.4 VOL Output low voltage VDD_IO = 1.65 V, IOL = 2.5 mA - 0.1 VDD_IO VDD_IO = 2.4 V, IOL = 3.0 mA - 0.1 VDD_IO VDD_IO = 3.3 V, IOL = 8 mA - 0.1 VDD_IO VDD_IO = 5.5 V, IOL = 8 mA - 0.1 VDD_IO |
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