74LS161 DATASHEET PDF

  • June 12, 2019

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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This mode of operation eliminates the output counting spikes that. Low Level Input Voltage. This counter is fully programmable; that is the outputs may be. A buffered clock input triggers the four flip-flops on the rising positive- going edge of the clock input wave form.

Fairchild Semiconductor

Maximum Ratings are those values beyond which damage to datasheett device may occur. The ripple carry output thus enabled will produce a high-level output pulse with a duration approximately equal to the high level portion of the Q.

Instrumental in accomplishiing this function are two counter-enable inputs and a ripple carry output. A buffered clock input triggers the four flip-flops on the rising positive- going edge of the clock input wave form.

High Level Output Current. Propagation Delay, Enable T to Ripple carry.

This synchronous, presettable counter features an internal carry. Propagation Delay, Reset to Any Q. Load, clock or enable T. This mode of operation eliminates the output counting spikes that. Load, clock or enable T Reset. High Level Input Current.

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74ls611 Delay, Clock load input high to Any Q. Functional operation should be restricted to the Recommended Operating Conditions. Sequence illustrated in waveforms: Search field Part name Part description.

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.

This mode of operation eliminates the output counting spikes that are normally associated with asynchronous ripple clock counters. Propagation Delay, Clock load input low to Any Q.

74LS datasheet, Pinout ,application circuits Synchronous 4 Bit Counters; Binary, Direct Reset

Not more than one output should be shorted at a time, and the duration should not exceed one second. Data 74ls1161 P0, P1, P2, P3.

Data or enable P. The high-level overflow ripple carry pulse can be enable successive cascaded stages. This counter is fully programmable; that is the outputs may be preset to either level.

As presetting is synchronous setting up a low. Low Level Output Current.

Width of clock pulse. Count to thirteen, fourteen, fifteen, zero, one, and two. This synchronous, presettable counter features an internal carry.

High Level Input Voltage. Synchronous 4 Bit Counters; Binary.

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74LS161 PDF Datasheet浏览和下载

All outputs high V. The carry look-ahead circuitry provides for cascading counters for. Output Short Circuit Current. Width of reset pulse. As presetting is synchronous setting up a low datsaheet 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. All diodes are 1N or 1N Low Level Input Current.

Hold time at any input. Carry Output for n-Bit Cascading. Instrumental in accomplishiing this function are two counter-enable inputs and a ripple carry output.

Propagation Delay, Clock to Ripple carry. 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. Synchronous operation is provided by having all flip-flops clocked.

Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs 74la161 conicident with each other when datzsheet instructed by the count-enable inputs and internal datashwet.

Enable P or T.