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DS1682S Datasheet(PDF) 11 Page - Dallas Semiconductor |
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DS1682S Datasheet(HTML) 11 Page - Dallas Semiconductor |
11 / 13 page DS1682 11 of 13 AC ELECTRICAL CHARACTERISTICS (-40 °C to 85°C; V CC = 2.5 to 5.5V) PARAMETER SYMBOL MIN TYP MAX UNITS NOTES EEPROM Lockout Time after event tEEV 500 ms Time from Event = (0.5*VCC) until ETC Fully Stored (VCC > 2.7V) tPF 50 100 ms EEPROM Write Time tEW 150 200 ms Alarm# Output Active Low Pulse Width tSL 62.5 ms Alarm# Output Active High Pulse Width tSH 437.5 ms Alarm# Input Pulled Low and Released Pulse Width tSPL 500 ms Minimum Signal Hold Time tSIG TBD ms Minimum Event Hold tEVNT TBD ms Input Capacitance Ci 5 pF SCL clock frequency fscl 100 kHz Bus free time between a STOP and START condition tbuf 4.7 µs Hold time (repeated) START condition. thd:sta 4.0 µs 2 LOW period of SCL tlow 4.7 µs HIGH period of SCL thigh 4.0 µs Set-up time for a repeated START tsu:sta 4.7 µs Data hold time thd:dat 0 µs Data set-up time tsu:dat 250 ns Rise time of both SDA and SCL signals tr 1000 ns Fall time of both SDA and SCL signals tf 1000 ns Set-up time for STOP tsu:sto 4.0 µs Capacitive load for each bus line Cb 400 pF 3 |
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