74LS161 DATASHEET PDF

These synchronous, presettable counters feature an inter- nal carry look-ahead for application in high-speed counting designs. The DM74LSA and. 74LS Synchronous 4-bit Binary Counters. These synchronous, presettable counters feature an internal carry look-ahead for application in high-speed. System Logic Semiconductor 74LS datasheet, Synchronous 4 Bit Counters; Binary/ Direct Reset (3-page), 74LS datasheet, 74LS pdf, 74LS

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High Level Output Voltage.

Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change conicident with each other when so instructed by the count-enable inputs and internal gating. Width of clock pulse. High Level Input Current.

This mode of operation eliminates the output counting datashewt that are normally associated with asynchronous ripple clock counters.

Fairchild Semiconductor

Data or enable P. Search field Part name Part description. Synchronous 4 Bit Counters; Binary. Carry Output for n-Bit Cascading. Low Level Output Voltage. The ripple carry output thus enabled. 47ls161

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74LS Datasheet(PDF) – System Logic Semiconductor

This mode of operation eliminates the output counting spikes that. Propagation Delay, Clock to Ripple carry.

This synchronous, presettable counter features an internal carry. Maximum Ratings are those values beyond which damage to the device may occur. This mode of operation eliminates the output counting spikes that. Output Short Circuit Current. Instrumental in accomplishiing this function are two counter-enable inputs and a ripple carry output.

Synchronous 4 Bit Counters; Binary, Direct Reset

Enable P or T. All diodes are 1N or 1N As presetting is synchronous setting up a low. Data inputs P0, P1, P2, P3. The ripple carry output datassheet enabled will produce a high-level output pulse with a duration approximately equal to the high level portion of the Q.

Sequence illustrated in waveforms: The carry look-ahead circuitry provides for cascading counters for. Load, clock or enable Datasheet. Propagation Delay, Clock load input low to Any Q. Propagation Delay, Clock load input high to Any Q.

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The high-level overflow ripple carry pulse can be enable successive cascaded stages. This counter is fully programmable; that 7l4s161 the outputs may be. Low Level Output Current.

All outputs high V. This counter is fully programmable; that is the outputs may be.

Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change conicident with each other when so instructed by the count-enable inputs and internal gating. Propagation Delay, Enable T to Ripple carry. Low Level Input Voltage.

As presetting is synchronous setting up a low level at the load input disables the counter and causes the outputs to agree with the setup data after the next clock pulse regardless of the levels of the enable inputs.