74LS221 DATASHEET PDF

refer to Operating Rules #10 in this datasheet. Ordering Code: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering. Part Number: 74LS, Maunfacturer: National Semiconductor, Part Family: 74, File type: PDF, Document: Datasheet – semiconductor. 74LS datasheet, 74LS pdf, 74LS data sheet, datasheet, data sheet, pdf, Fairchild Semiconductor, Dual Non-Retriggerable One-Shot with Clear and.

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To obtain the best and trouble free operation from this device please read operating rules as well as the Fair- child Semiconductor one-shot application notes carefully and observe recommendations. The pin-out is identical to DM74LS but, functionally it is not. This provides the input with excellent noise immunity. Recent History What is this? V I Input Clamp Voltage.

74LS Datasheet(PDF) – Fairchild Semiconductor

This CLR input also serves as a trigger. Please create an account or Sign in. A high immunity to VCC noise is dataasheet provided by internal latching circuitry. Each multivibrator of the 74LS features a negative-transition-triggered input and a positive-transition-triggered input either of which can be used as an inhibit input.

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Not more than one output should be shorted at a time, and the duration should not exceed one second. This mode of triggering requires first the B input be set from a. Datashet range of jitter-free pulse widths is extended if VCC is 5. I OS Short Circuit. Pin A is an active-LOW trigger transition input and.

74LS221 PDF Datasheet浏览和下载

To obtain the best and trouble free operation from. You may also be interested in: Each device has three inputs permit. Faithfully describe 24 hours delivery 7 days Changing or Refunding. DescriptionThe absolute maximum ratings of the 74LS00N are: Each device has three inputs permit- ting the choice of either leading-edge or trailing-edge trig- gering.

I CC Supply Current. This provides the input with. In most applications, pulse stability will only be limited by the accuracy of external timing components.

74LS datasheet, Pinout ,application circuits Monostable Multivibrator

Output rise and fall times are independent of pulse length. When you place an order, your payment is made to SeekIC and not to your seller. Jitter-free operation is maintained over the full temperature and VCC ranges for greater than six decades of timing capacitance 10 pF to 10 mFand greater than one decade of timing resistance 2.

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Devices also available in Tape and Reel.

Additionally an internal latching circuit at the input stage also provides a high immunity to V CC noise. This CLR input also serves as a trigger input when it is pulsed with a low level pulse transition.

Order Number Package Number. Pulse width is defined by the relationship: Output pulse width may be varied from 35 nanoseconds to a maximum of 70 s by choosing appropriate timing components. If pulse cutoff is not critical, capacitance up to mF and resistance as low as 1.

The clear CLR input can terminate the output pulse at a predetermined time independent of the timing components. The clear CLR input can terminate the output. We will also never share your payment details with your seller.

Additionally an internal latching. Input pulse width may be of any duration relative to the output pulse width. Input Current Max Input Voltage.