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DS1852 Datenblatt(PDF) 21 Page - Dallas Semiconductor |
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DS1852 Datenblatt(HTML) 21 Page - Dallas Semiconductor |
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21 / 25 page ![]() DS1852 21 of 25 AC ELECTRICAL CHARACTERISTICS (-40°C to +100°C, VCC = 2.7V to 5.5V) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS NOTES SCL Clock Frequency f SCL Fast Mode Standard Mode 0 0 400 100 kHz 7 Bus Free Time Between STOP and START Condition t BUF Fast Mode Standard Mode 1.3 4.7 µs 7 Hold Time (Repeated) START Condition t HD:STA Fast Mode Standard Mode 0.6 4.0 µs 7, 8 Low Period of SCL Clock t LOW Fast Mode Standard Mode 1.3 4.7 µs 7 High Period of SCL Clock t HIGH Fast Mode Standard Mode 0.6 4.0 µs 7 Data Hold Time t HD:DAT Fast Mode Standard Mode 0 0 0.9 µs 7, 9, 10 Data Setup Time t SU:DAT Fast Mode Standard Mode 100 250 ns 7 Start Setup Time t SU:STA Fast Mode Standard Mode 0.6 4.7 µs 7 Rise Time of Both SDA and SCL Signals t R Fast Mode Standard Mode 20+0.1C B 300 1000 ns 11 Fall Time of Both SDA and SCL Signals t F Fast Mode Standard Mode 20+0.1C B 300 300 ns 11 Setup Time for STOP Condition tSU:STO Fast Mode Standard Mode 0.6 4.0 µs Capacitive Load for Each Bus Line C B 400 pF 11 Startup Time tST 2ms 5 VCC Power-Up Rate 1 V/s EEPROM Write Time tW 10 20 ms 6 NONVOLATILE MEMORY CHARACTERISTICS PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS NOTES Writes +85°C 50,000 |
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