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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The carry look-ahead circuitry provides for cascading counters for n-bit synchronous applications without additional gating. Synchronous 4 Bit Counters; Binary.

74LS161 Datasheet PDF

Propagation Delay, Clock load input low to Any Q. The high-level overflow ripple carry pulse can be enable successive cascaded stages. As presetting is synchronous setting up a low. Load, clock or enable T.

Fairchild Semiconductor

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. This mode of operation eliminates the output counting spikes that.

Propagation Delay, Clock load input high to Any Q.

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This counter is fully programmable; that is the outputs may be. Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions.

This synchronous, presettable counter features an internal carry. Propagation Delay, Enable T to Ripple carry. Preset to binary twelve. The ripple carry output thus enabled will produce a high-level datqsheet pulse with a duration approximately equal to the high level portion of the Q.

Reset outputs to zero. 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 datasjeet operation eliminates the output counting spikes that.

Internal Look-Ahead for Fast Counting.

74LS (SLS) – Synchronous 4 Bit Counters; Binary, Direct Reset | eet

Hold time at any input. 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 dataheet inputs and internal gating.

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. Propagation Delay, Clock to Ripple carry.

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Instrumental in accomplishiing this function are two counter-enable inputs and a ripple carry output. Enable P or T. The ripple carry output thus enabled. Low Level Output Current. Search field Part name Part description.

Load, 74sl161 or enable T Reset. Propagation Delay, Reset to Any Q. Count to thirteen, fourteen, fifteen, zero, one, and two.

A buffered clock input triggers the four flip-flops on the rising positive- going edge of the clock input wave form. All diodes are 1N or 1N Data or enable P. Instrumental in accomplishiing this function are two counter-enable inputs and a ripple carry output. Width of clock pulse. This counter is fully programmable; that is the outputs may be preset to either level.

Width of reset pulse. The 74ls1661 look-ahead circuitry provides for cascading counters for.