Description, Synchronous Up/down Counters WITH Down/up MODE Control. Company, Texas Instruments, Inc. Datasheet, Download datasheet. Quote . Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated. datasheet, circuit, data sheet: TI – SYNCHRONOUS UP/ DOWN COUNTERS WITH DOWN/UP MODE CONTROL,alldatasheet, datasheet, .
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All diodes are 1 N or equivalent. SN54′, SN74′ Circuits 5. All data inputs are datashfet. Tl assumes no liability for applications assistance or 741190 product design. Data inputs A, B, and C are shown by the solid line. Count down to one, zero minimumnine, eight, and seven. Resale of Tl products or services with statements different from or beyond the parameters stated by Tl for that product or service voids all express and any implied warranties for the associated Tl product or service and is an unfair and deceptive business practice.
The output will change to agree with the data inputs independently of the level of the clock input. Datasheer inputs A and D are shown by the solid line. Pin numbers shown are for D, J, and N packages. Data input D is shown by the dashed line.
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Full text of “IC Datasheet: 74LS”
The ripple clock output produces a low-level output pulse equal in width to the low- level portion of the clock input when an overflow or underflow condition exists. All products are sold subject to Tl’s terms and conditions of sale supplied at the time of order acknowledgment. Voltage values are with respect to network ground terminal. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Buyers acknowledge and agree that any such use of Tl products which Tl has not designated as military-grade is solely at the Buyer’s risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use.
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Information of third parties may be subject to additional restrictions. Load datasheer to BCD seven. Count up to fourteen, fifteen maximumzero, one, and two. The latter output produces a high-level output pulse with a duration approximately equal to one complete cycle of the clock when the counter overflows or underflows. To test Qq output of ‘ and ‘LS Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, Tl will not be responsible for any failure to meet such requirements.
Tl is not responsible or liable for any such statements. All four data inputs are shown by the solid line. Tl is not responsible or liable for such altered documentation.
Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. Lqad preset to binary thirteen. This feature allows the counters to be used as modulo-N dividers by simply modifying the count length with the preset inputs.
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Level changes at the enable input should be made only when the clock in- put is high. Minimum count enable time is the interval immediately preceeding the rising edge of the clock pulse during which interval the datashset enable input must be low to ensure counting. When low, the counter count up and when high, it counts down.
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Tl warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with Tl’s standard warranty. For simplication, pulse rise times, reference levels, etc. Count down to one, zero minimumfifteen, fourteen, and thirteen.
Reproduction of Tl information in Tl data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices.
This mode of operation dataasheet the output counting spikes normally associated with asyn- chronous ripple clock counters. Data inputs B and C are held at the low logic level. Count up to eight, nine maximumzero, one, and two. Two outputs have been made available to perform the cascading function: The input pulses are supplied by generators having the following characteristics: These counters are fully programmable; that is, the outputs may datassheet preset to either level by placing a low on the load input and entering the desired data at the data inputs.
Testing and other quality control techniques are used to the extent Tl deems necessary to support this warranty. Data in is shown by the solid line for both devices.
The counters can be easily cascaded by feeding the ripple clock output to the enable input of the succeeding counter if parallel clocking is used, or to the clock input if parallel enabling is used. Search the history of over billion web pages on the Internet.
Production processing does not necessarily include testing of all parameters. I qq is measured with all inputs grounded and all outputs open.