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DS1922L-F5 Datasheet(PDF) 2 Page - Maxim Integrated Products |
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DS1922L-F5 Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 52 page Temperature Logger iButton with 8KB Data-Log Memory 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VPUP = +3.0V to +5.25V.) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. IO Voltage Range to GND ........................................-0.3V to +6V IO Sink Current....................................................................20mA Operating Temperature Range DS1922L ...........................................................-40°C to +85°C DS1922T ............................................................0°C to +125°C Junction Temperature ......................................................+150°C Storage Temperature Range* DS1922L..........................................................-40°C to +85°C* DS1922T ...........................................................0°C to +125°C* PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DS1922L (Note 1) -40 +85 Operating Temperature TA DS1922T (Note 1) 0 +125 °C IO PIN: GENERAL DATA 1-Wire Pullup Resistance RPUP (Notes 2, 3) 2.2 k Input Capacitance CIO (Note 4) 100 800 pF Input Load Current IL IO pin at VPUP 6 10 μA High-to-Low Switching Threshold VTL (Notes 5, 6) 0.4 3.2 V Input Low Voltage VIL (Notes 2, 7) 0.3 V Low-to-High Switching Threshold VTH (Notes 5, 8) 0.7 3.4 V Switching Hysteresis VHY (Note 9) 0.09 N/A V Output Low Voltage VOL At 4mA (Note 10) 0.4 V Standard speed, RPUP = 2.2k 5 Overdrive speed, RPUP = 2.2k 2 Recovery Time (Note 2) tREC Overdrive speed, directly prior to reset pulse; RPUP = 2.2k 5 μs Rising-Edge Hold-Off Time tREH (Note 11) 0.6 2.0 μs Standard speed 65 Overdrive speed, VPUP > 4.5V 8 Time-Slot Duration (Note 2) tSLOT Overdrive speed (Note 12) 9.5 μs IO PIN: 1-Wire RESET, PRESENCE-DETECT CYCLE Standard speed, VPUP > 4.5V 480 720 Standard speed (Note 12) 690 720 Overdrive speed, VPUP > 4.5V 48 80 Reset Low Time (Note 2) tRSTL Overdrive speed (Note 12) 70 80 μs Standard speed, VPUP > 4.5V 15 60 Standard speed (Note 12) 15 63.5 Presence-Detect High Time tPDH Overdrive speed (Note 12) 2 7 μs Standard speed, VPUP > 4.5V 1.5 5 Standard speed 1.5 8 Presence-Detect Fall Time (Note 13) tFPD Overdrive speed 0.15 1 μs * Storage or operation above +50°C significantly reduces battery life. |
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Similar Description - DS1922L-F5 |
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