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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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. Additionally an internal latching circuit at the input stage also provides a high immunity to V CC noise. 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.

Input pulse width may be of any duration relative to the output pulse width. 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.

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This mode of triggering requires first the B input be set from a.

You may also be interested in: Not more than one output should be shorted at a time, and the duration should not exceed one second. V I Input Clamp Voltage.

Motorola 74LS Series Datasheets. 74LSN, SN54LS Datasheet.

In most applications, pulse stability will only be limited by the accuracy of external timing components. This CLR input also serves as a trigger input when it is pulsed with a low level pulse transition.

If pulse cutoff is not critical, capacitance up to mF and resistance as low as 1. Margin,quality,low-cost products with low minimum orders.

A high immunity to VCC noise is also provided by internal latching circuitry. Month Sales Transactions.

74LS Selling Leads, Price trend, 74LS DataSheet download, circuit diagram from

Pulse width is defined by the relationship: Devices also available in Tape and Reel. Each device has three inputs permit. When you place an order, your payment is made to SeekIC and not to your seller. The output pulses can be terminated by the overriding clear.

Monostable Multivibrator

Output rise and fall times are independent of pulse length. The clear CLR input can terminate the output. Recent History What is this? This provides the input with excellent noise immunity. We will also never share your payment details with your seller.

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Output pulse width may be varied from 35 nanoseconds to a maximum of 70 s by choosing appropriate timing components. Pulse triggering occurs at a voltage level and is not related to the transition time of the input pulse.

SeekIC only pays the seller after confirming you have received your order. Additionally an internal latching. The range of jitter-free pulse widths is extended if VCC is 5. I CC Supply Current. This CLR input also serves as a trigger.

This provides the input with. Input Current Max Input Voltage. Pin A is an active-LOW trigger transition input and. To 74le221 the best and trouble free operation from. The clear CLR input can terminate the output pulse at a predetermined time independent of the timing components.

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