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DS1390U-33+ Datasheet(PDF) 3 Page - Maxim Integrated Products |
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DS1390U-33+ Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 26 page Low-Voltage SPI/3-Wire RTCs with Trickle Charger _____________________________________________________________________ 3 RECOMMENDED DC OPERATING CONDITIONS (continued) (VCC = VCC(MIN) to VCC(MAX), TA = -40°C to +85°C, unless otherwise noted. Typical values are at nominal supply voltage and TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS -33 115 175 -3 80 125 VCC Standby Current (Note 11) ICCS -18 60 100 μA VBACKUP Leakage Current (VBACKUP = 3.7V, VCC = VCC(MAX)) IBACKUPLKG 15 100 nA DC ELECTRICAL CHARACTERISTICS (VCC = 0V, VBACKUP = 3.7V, TA = -40°C to +85°C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS VBACKUP Current OSC On, SQW Off IBACKUP1 (Note 12) 500 1000 nA VBACKUP Current OSC On, SQW On (32kHz) IBACKUP2 (Note 12) 600 1150 nA VBACKUP Current OSC On, SQW On, VBACKUP = 3.0V, TA = +25°C IBACKUP3 (Note 12) 600 1000 nA VBACKUP Current, OSC Off (Data Retention) IBACKUPDR (Note 12) 25 100 nA AC ELECTRICAL CHARACTERISTICS—SPI INTERFACE (VCC = VCC(MIN) to VCC(MAX), TA = -40°C to +85°C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS 2.7V VCC 5.5V 0 4 SCLK Frequency (Note 13) fSCLK 1.71V VCC 1.89V 0 1 MHz Data to SCLK Setup tDC (Notes 13, 14) 30 ns SCLK to Data Hold tCDH (Notes 13, 14) 30 ns 2.7V VCC 5.5V 80 SCLK to Data Valid (Notes 13, 14, 15) tCDD 1.71V VCC 1.89V 160 ns 2.7V VCC 5.5V 110 SCLK Low Time (Note 13) tCL 1.71V VCC 1.89V 400 ns 2.7V VCC 5.5V 110 SCLK High Time (Note 13) tCH 1.71V VCC 1.89V 400 ns SCLK Rise and Fall tR, tF 200 ns CS to SCLK Setup (Note 13) tCC 400 ns SCLK to CS Hold (Note 13) tCCH 100 ns 2.7V VCC 5.5V 400 CS Inactive Time (Note 13) tCWH 1.71V VCC 1.89V 500 ns CS to Output High Impedance tCDZ (Notes 13, 14) 40 ns |
Similar Part No. - DS1390U-33+ |
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Similar Description - DS1390U-33+ |
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