전자부품 데이터시트 검색엔진 |
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SI7015-A10 데이터시트(PDF) 5 Page - Silicon Laboratories |
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SI7015-A10 데이터시트(HTML) 5 Page - Silicon Laboratories |
5 / 39 page Si7015-A10 Rev. 1.0 5 Wake Up Time tCS From CS < VIL to ready for a temp/RH conversion —— 1 ms Power Up Time tPU From VDD ≥ 1.9 V to ready for a temp/ RH conversion, 25°C —18 25 ms From VDD ≥ 1.9 V to ready for a temp/ RH conversion, full temperature range —— 80 ms Table 3. I2C Interface Specifications1 1.9 VDD 3.6 V; TA = 0 to 70 °C (F grade) or –40 to +85 °C (G 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 Frequency 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 SDA Valid Time tVD;DAT From SCL low to data valid — — 0.9 µs SDA Acknowledge Valid Time tVD;ACK From SCL low to data valid — — 0.9 µs Suppressed Pulse Width2 tSP 50 — — ns Notes: 1. All values are referenced to VIL and/or VIH. 2. 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 0 to 70 °C (F grade); default conversion time unless otherwise noted. Parameter Symbol Test Condition1 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 Read Device ID and Read Firmware Version. Duration is < 100 µs when I2C clock speed is >100 kHz. |
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