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DS2704G+TR Datasheet(PDF) 3 Page - Maxim Integrated Products |
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DS2704G+TR Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 18 page DS2704: 1280-Bit EEPROM with SHA-1 Authentication 3 of 18 AC ELECTRICAL CHARACTERISTICS: 1-WIRE INTERFACE (2.5V £ VDD £ 5.5V, TA = -30°C to +85°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS STANDARD BUS TIMING Time Slot tSLOT 60 120 ms Recovery Time tREC 1 ms Write 0 Low Time tLOW0 60 120 ms Write 1 Low Time tLOW1 1 15 ms Read Data Valid tRDV 15 ms Reset Time High tRSTH 480 ms Reset Time Low tRSTL 480 960 ms Presence Detect High tPDH 15 60 ms Presence Detect Low tPDL 60 240 ms OVERDRIVE BUS TIMING Time Slot tSLOT 6 16 ms Recovery Time tREC 1 ms Write 0 Low Time tLOW0 6 16 ms Write 1 Low Time tLOW1 1 2 ms Read Data Valid tRDV 2 ms Reset Time High tRSTH 48 ms Reset Time Low tRSTL 48 80 ms Presence Detect High tPDH 2 6 ms Presence Detect Low tPDL 8 24 ms DQ Capacitance CDQ 60 pF Note 1: All voltages are referenced to VSS. Note 2: EEPROM programming temperature range limited to 0 °C to 50°C. Note 3: Device written NEEC times then stored for tEES at 50 °C. Note 4: DQ = VDD. Note 5: Current measured with minimum bus timing while the master issues: 1-Wire Reset, Skip ROM, Write Challenge, Write Repeated 0’s until end of measurement. |
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