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DS1649 Datasheet(PDF) 4 Page - Texas Instruments |
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DS1649 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 8 page Switching Characteristics (VCC e 5V TA e 25 C) (Note 4) Symbol Parameter Conditions Min Typ Max Units tSg Storage Delay Negative Edge ( Figure 1 )CL e 50 pF 45 7 ns CL e 500 pF 75 12 ns tSg Storage Delay Positive Edge ( Figure 1 )CL e 50 pF 5 8 ns CL e 500 pF 8 13 ns tF Fall Time ( Figure 1 )CL e 50 pF 5 8 ns CL e 500 pF 22 35 ns tR Rise Time ( Figure 1 )CL e 50 pF 6 9 ns CL e 500 pF 21 35 ns tZL Delay from Disable Input to Logical ‘‘0’’ CL e 50 pF 10 15 ns Level (from High Impedance State) RL e 2kX to VCC (Figure 2 ) tZH Delay from Disable Input to Logical ‘‘1’’ CL e 50 pF 815 ns Level (from High Impedance State) RL e 2kX to GND (Figure 2 ) tLZ Delay from Disable Input to High Impedance CL e 50 pF 15 25 ns State (from Logical ‘‘0’’ Level) RL e 400X to VCC (Figure 3 ) tHZ Delay from Disable Input to High Impedance CL e 50 pF 10 25 ns State (from Logical ‘‘1’’ Level) RL e 400X to GND (Figure 3 ) Note 1 ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed Except for ‘‘Operating Temperature Range’’ they are not meant to imply that the devices should be operated at these limits The table of ‘‘Electrical Characteristics’’ provides conditions for actual device operation Note 2 Unless otherwise specified minmax limits apply across the b55 Cto a125 C temperature range for the DS1649 and DS1679 and across the 0 Cto a 70 C range for the DS3649 and DS3679 All typical values are for TA e 25 C and VCC e 5V Note 3 All currents into device pins shown as positive out of device pins as negative all voltages referenced to ground unless otherwise noted All values shown as max or min on absolute value basis Note 4 When measuring output drive current and switching response for the DS1679 and DS3679 a 15X resistor should be placed in series with each output This resistor is internal to the DS1649DS3649 and need not be added AC Test Circuits and Switching Time Waveforms tSg tS’ tR tF TLF7515 – 4 TLF7515 – 5 FIGURE 1 3 |
Similar Part No. - DS1649_11 |
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Similar Description - DS1649_11 |
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