74LS161 DATASHEET PDF

74LS161 DATASHEET PDF

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April 1, 2021

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 ripple carry output thus enabled will produce darasheet high-level output pulse with a duration approximately equal to the high level portion of the Q. The carry look-ahead circuitry provides for cascading counters for.

High Level Output Current. Synchronous 4 Bit Counters; Binary. High Level Input Current.

Not more than one output should be shorted at a time, and the duration should not exceed one second. Search field Part name Part description. Count to thirteen, fourteen, fifteen, zero, one, and two.

The ripple carry output thus ratasheet will produce a high-level output pulse with a duration approximately equal to the high level portion of the Q A output. All outputs high V. This counter is fully programmable; that is the outputs may be preset to either level. Reset outputs to zero. Internal Look-Ahead for Fast Counting. A buffered clock input triggers the four flip-flops on the rising positive- going edge of the clock input wave form.

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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. All diodes are 1N or 1N 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. Data or enable P. Hold time at any input.

High Level Output Voltage. Low Level Output Voltage. Enable P or T. Output Short Circuit Current. Propagation Delay, Clock load input low to Any Q.

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

Propagation Delay, Reset to Any Q. Width of clock pulse.

74LS (SLS) PDF技术资料下载 74LS 供应信息 IC Datasheet 数据表 (1/5 页)

The high-level overflow ripple carry pulse can be enable successive cascaded stages. Low Level Input Voltage. Propagation Delay, Clock load input high to Any Q. dtasheet

Propagation Delay, Enable T to Ripple carry. Low Level Input Current. Load, clock or enable T Reset. This synchronous, presettable counter features an internal carry.

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 datashret levels of the enable inputs. This mode of operation eliminates the output counting spikes that.

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

Load, clock or enable T. This mode of operation eliminates the output counting spikes that are normally associated with asynchronous ripple clock counters. Synchronous operation is provided by having all flip-flops clocked. Maximum Ratings are those values beyond which damage to the device may occur. Instrumental in accomplishiing this function are two counter-enable inputs and a ripple carry output. The ripple carry output thus enabled. The carry look-ahead circuitry provides for cascading counters for n-bit synchronous applications without additional gating.

Width of reset pulse.

74LS161 PDF Datasheet浏览和下载

This mode of operation eliminates the output counting spikes that. As presetting is synchronous setting up a low. Low Level Output Current. This synchronous, presettable counter features an internal carry. Functional operation should be restricted to the Recommended Operating Conditions. Carry Datasheeg for n-Bit Cascading.

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

High Level Input Voltage. Preset to binary twelve. The carry look-ahead circuitry provides for cascading counters for.