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5P90005DCGI8 Datasheet(PDF) 11 Page - Integrated Device Technology |
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5P90005DCGI8 Datasheet(HTML) 11 Page - Integrated Device Technology |
11 / 16 page IDT5P90005 SERIAL REAL-TIME CLOCK RTC IDT™ SERIAL REAL-TIME CLOCK 11 IDT5P90005 REV E 031209 AC Electrical Characteristics Unless stated otherwise, VCC = 2.0 to 5.5 V, Ambient Temperature -40 to +85 C Note 1: Transmitter must internally provide a hold time to bridge the undefined region (300 ns max) of the falling edge of SCL. Power Down/Up Mode AC Waveforms RTC Power Down/Up AC Characteristics Note 1: Valid for ambient operating temperature: TA = –40 to 85 °C; VCC = 2.0 to 5.5 V (except where noted). Note 2: VCC fall time should not exceed 5 mV/µs. Parameter Symbol STANDARD MODE FAST MODE Units Min. Max. Min. Max. SCL Clock Frequency fSCL 100 400 kHz Clock Low Period tLOW 4.7 1.3 µs Clock High Period tHIGH 4.0 0.6 µs SDA and SCL Rise time tR 10.3 µs SDA and SCL Fall Time tF 300 300 ns START Condition Hold Time (after this period the first clock pulse is generated) tHD:STA 4 µs START Condition Setup Time (only relevant for a repeated start condition) tSU:STA 4.7 0.6 µs Data Hold Time tHD:DAT1 01.3 ns Data Setup Time tSU:DAT 250 100 ns STOP Condition Setup Time tSU:STO 4.0 0.6 µs Time the bus must be free before a new transmission can start tBUF 4.7 1.3 µs Parameter1,2 Symbol Min. Typ. Max. Units SCL and SDA at VIH before Power Down tPD 0ns SCL and SDA at VIH after Power Up trec 10 2000 µs |
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