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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Search field Part name Part description. Load, clock or enable T Reset. 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 A output.

Fairchild Semiconductor

Low Level Input Current. Synchronous 4 Bit Counters; Binary. This counter is fully programmable; that is the outputs may be. 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.

Low Level Input Voltage. As presetting is synchronous setting up a low. Output Short Circuit Current. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change conicident 744ls161 each other when so instructed by the count-enable inputs and internal gating.

Propagation Delay, Enable T to Ripple carry. 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. Sequence illustrated in waveforms: Preset to binary twelve. Enable P or T. All outputs high V.

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Width of reset pulse. Load, clock or enable T. Functional operation should be restricted to the Recommended Operating Conditions. Width of clock pulse. All diodes 774ls161 1N or 1N This mode of operation eliminates the output counting spikes that. A buffered clock input triggers the four flip-flops on the rising positive- going edge of the clock datasheet wave form. Data or enable P. Propagation Delay, Clock load input high to Any Q.

This counter is 74lz161 programmable; that is the outputs may be preset to either level. The carry look-ahead circuitry provides for cascading counters for.

74LS161 PDF Datasheet浏览和下载

74ld161 synchronous, presettable counter features an internal carry. Low Level Output Voltage. Propagation Delay, Clock to Ripple carry. The carry look-ahead circuitry provides for cascading counters for. 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, Reset to Any Q.

As presetting is synchronous setting up 74ks161 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.

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High Level Output Voltage. Data inputs P0, P1, P2, P3. The carry look-ahead circuitry provides for cascading counters for n-bit synchronous applications without additional gating. High Level Output Current. Instrumental in accomplishiing this function are two counter-enable inputs and a ripple carry output.

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

Not more than one output should be shorted at a time, and datasheett duration should not exceed one second. Reset outputs to zero.

High Level Input Voltage.

Internal Look-Ahead for Fast Counting. High Level Input Current.

This synchronous, presettable counter features an internal carry. Instrumental in accomplishiing this function are two counter-enable inputs and a ripple carry output. The high-level overflow ripple carry pulse can be enable successive cascaded stages.

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

Hold time at any input. Maximum Ratings are those values beyond which damage to the device may occur. This mode of operation eliminates the output counting spikes that are normally associated with asynchronous ripple clock counters. Carry Output for n-Bit Cascading.