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STTS2004 数据表(PDF) 46 Page - STMicroelectronics |
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STTS2004 数据表(HTML) 46 Page - STMicroelectronics |
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46 / 58 page ![]() DC and AC parameters STTS2004 46/58 DocID024229 Rev 3 Figure 18. SMBus/I2C timing diagram Table 31. Input parameters Symbol Parameter(1) Test condition Min Max Units CIN Input capacitance 8 pF ZAIL A0, A1, A2 input impedance VIN < 0.3 VDD 30 k ZAIH A0, A1, A2 input impedance VIN > 0.7VDD 800 k tSP Spike suppression pulse width of spikes that must be suppressed by the input filter on SCL and SDA 50 ns 1. Verified by design and characterization, not necessarily tested on all devices Table 32. Temperature to digital conversion performance Symbol Parameter Test condition Min Typ Max Units B-grade Accuracy for corresponding range 2.2 V . VDD . 3.6 V +75 °C < TA < +95 ±0.5 ±1.0 °C +40 °C < TA < +125 ±1.0 ±2.0 –20 °C < TA < +125 ±2.0 ±3.0 Resolution 0.5 0.25 0.0625 °C/LSB 9 10 12 bits tCONV Conversion time 10-bit - default 70 125 ms V IH V IH V IH V IH V IL V IL V IL V IL SCL SCL SDA SDA NOTE: P stands for STOP and S stands for START STOP CONDITION WRITE CYCLE START CONDITION t SU:STA t SU:STO t W t BUF t LOW t HD:STA t HD:DI t R t F t SU:DAT t HIGH t SU:STA t HD:DAT t SU:STO P S P S ai12266a |
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