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DS1374C-33 Datasheet(PDF) 4 Page - Maxim Integrated Products |
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DS1374C-33 Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 17 page I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output 4 _____________________________________________________________________ AC ELECTRICAL CHARACTERISTICS (VCC = VCC(MIN) to VCC(MAX), TA = -40°C to +85°C, unless otherwise noted.) (Note 1) (Figure 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Fast mode 100 400 SCL Clock Frequency (Note 16) fSCL Standard mode 0 100 kHz Fast mode 1.3 Bus Free Time Between STOP and START Conditions tBUF Standard mode 4.7 µs Fast mode 0.6 Hold Time (Repeated) START Condition (Note 17) tHD:STA Standard mode 4.0 µs Fast mode 1.3 Low Period of SCL Clock tLOW Standard mode 4.7 µs Fast mode 0.6 High Period of SCL Clock tHIGH Standard mode 4.0 µs Fast mode 0 0.9 Data Hold Time (Notes 18, 19) tHD:DAT Standard mode 0 0.9 µs Fast mode 100 Data Setup Time (Note 20) tSU:DAT Standard mode 250 ns Fast mode 0.6 Start Setup Time tSU:STA Standard mode 4.7 µs Fast mode 300 Rise Time of Both SDA and SCL Signals (Note 16) tR Standard mode 20 + 0.1CB 1000 ns Fast mode 300 Fall Time of Both SDA and SCL Signals (Note 16) tF Standard mode 20 + 0.1CB 300 ns Fast mode 0.6 Setup Time for STOP Condition tSU:STO Standard mode 4.7 µs Capacitive Load for Each Bus Line CB (Note 16) 400 pF I/O Capacitance (SDA, SCL) CI/O (Note 21) 10 pF Pulse Width of Spikes That Must be Suppressed by the Input Filter tSP Fast mode 30 ns Pushbutton Debounce PBDB (Figure 2) 250 ms Reset Active Time tRST (Figure 2) 250 ms Oscillator Stop Flag (OSF) Delay tOSF (Note 22) 100 ms |
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