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Si7013-A10-IM1R Datasheet(PDF) 5 Page - Silicon Laboratories |
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Si7013-A10-IM1R Datasheet(HTML) 5 Page - Silicon Laboratories |
5 / 43 page Si7013 Rev. 0.95 5 Conversion Time1 tCONV RH or Voltage Normal — 5.8 7 ms RH or Voltage Fast — 2.6 3.1 ms Temp Normal — 4 4.8 ms Temp Fast — 1.5 1.8 ms Powerup Time tPU From VDD ≥ 1.9 V to ready for a conversion, 25 °C —18 25 ms From VDD ≥ 1.9 V to ready for a conversion, full temperature range —— 80 ms Table 3. I2C Interface Specifications1 1.9 VDD 3.6 V; TA = –40 to +85 °C (G grade) or –40 to +125 °C (I/Y grade) unless otherwise noted. Parameter Symbol Test Condition Min Typ Max Unit Hysteresis VHYS High-to-low versus low-to- high transition 0.05 x VDD —— V SCLK Frequency2 fSCL — — 400 kHz SCL High Time tSKH 0.6 — — µs SCL Low Time tSKL 1.3 — — µs Start Hold Time tSTH 0.6 — — µs Start Setup Time tSTS 0.6 — — µs Stop Setup Time tSPS 0.6 — — µs Bus Free Time tBUF Between Stop and Start 1.3 — — µs SDA Setup Time tDS 100 — — ns SDA Hold Time tDH 100 — — ns Notes: 1. All values are referenced to VIL and/or VIH. 2. Depending on the conversion command, the Si7013 may hold the master during the conversion (clock stretch). At above 300 kHz SCL, the Si7013 may hold the master briefly for user register and device ID transactions. At the highest I2C speed of 400 kHz the stretching will be <10 µs. 3. Pulses up to and including 50ns will be suppressed. Table 2. General Specifications (Continued) 1.9 < VDD < 3.6 V; TA = –40 to 85 °C (G grade) or –40 to 125 °C (I/Y grade); default conversion time unless otherwise noted. Parameter Symbol Test Condition Min Typ Max Unit Notes: 1. Initiating a RH measurement will also automatically initiate a temperature measurement. The total conversion time will be tCONV(RH) + tCONV(T). 2. No conversion or I2C transaction in progress. Typical values measured at 25 °C. 3. Occurs once during powerup. Duration is <5 msec. 4. Occurs during I2C commands for Reset, Read/Write User Registers, Read EID, Read Firmware Version, Read/Write Thermistor Coefficients and Read Thermistor. Duration is <50 μs for all commands except Read Thermistor, which has <150 μs duration. 5. Additional current consumption when HTRE bit enabled. See Section “5.6. Heater” for more information. |
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