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NE555 Datasheet(PDF) 6 Page - STMicroelectronics |
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NE555 Datasheet(HTML) 6 Page - STMicroelectronics |
6 / 20 page ![]() Electrical characteristics NE555 - SA555 - SE555 6/20 Idis(off) Discharge pin leakage current (output high) Vdis = 10V 20 100 20 100 nA Vdis(sat) Discharge pin saturation voltage (output low) (4) VCC = +15V, Idis = 15mA VCC = +5V, Idis = 4.5mA 180 80 480 200 180 80 480 200 mV tr tf Output rise time Output fall time 100 100 200 200 100 100 300 300 ns toff Turn off time (5) (Vreset = VCC)0.5 0.5 µs 1. Tested at VCC = +5V and VCC = +15V. 2. This will determine the maximum value of RA + RB for 15V operation. The maximum total (RA + RB) is 20MΩ for 15V operation and 3.5M Ω for +5V operation. 3. Specified with trigger input high. 4. No protection against excessive pin 7 current is necessary, providing the package dissipation rating is not exceeded. 5. Time measured from a positive pulse (from 0V to 0.8xVCC) on the Threshold pin to the transition from high to low on the Output pin. Trigger is tied to Threshold. Table 3. Tamb = +25°C, VCC = +5V to +15V (unless otherwise specified) Symbol Parameter SE555 NE555 - SA555 Unit Min. Typ. Max. Min. Typ. Max. |
Similar Part No. - NE555_07 |
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Similar Description - NE555_07 |
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