Datasheets for electronic components. This file is the datasheet for the following electronic components: 74LS – ?. Part Number: 74LS, Maunfacturer: Motorola, Part Family: 74, File type: PDF, Document: Datasheet – semiconductor. 74LS datasheet, 74LS circuit, 74LS data sheet: TI – SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL,alldatasheet.

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In the counting datashert, state changes are initiated by the rising edge of the. Tl is not responsible or liable for such altered documentation. Truth Table Abstract: Delete arrow from 15 to 0. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed.

Tl products are not authorized for use in safety-critical applications such as life support where a failure of the Tl product would reasonably be expected to datashwet severe personal injury or death, unless officers of the parties have executed an agreement specifically governing such use. HP QIC, Mbytetape, circuit diagram Truth Table IC, counter schematic diagram,uses and functions, counter truth table of ic A schematic diagram for the IC of 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.

Data in is shown by the solid line for both devices. I qq is measured with all inputs grounded and all outputs open.

Search the history of over billion web pages on the Internet. Information of third parties may be subject to additional restrictions. 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.

Lqad preset to binary thirteen. Data inputs A and D are shown by the solid line. A disadvantage of this configuration, in someoutput of a given stage is not affected by its own CE.

Texas Instruments

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Production processing does not necessarily include testing of all parameters. When low, the counter counts up and when high, it counts down. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.

Tl assumes no liability for applications assistance or customer datqsheet design. Data input D is shown by the dashed line.


For simplication, pulse rise times, reference levels, etc. Reproduction of Tl information in Tl data books or data sheets is permissible only if reproduction is without alteration and is accompanied by datasehet associated warranties, conditions, limitations, and notices.

Count up to fourteen, fifteen maximumzero, one, and two. Counting o c cu rs on the positive goin g transition of the clock input. Full text of ” IC Datasheet: To test Qq output of ‘ and ‘LS Information published by Tl regarding third-party products or services does not constitute a license from Tl to use such products datawheet services or a warranty or endorsement thereof. Testing and other quality control techniques are used to the extent Tl deems necessary to support this warranty.

Tl is not responsible or liable for any such statements. This mode of operation eliminates the output counting spikes normally associated with asyn- chronous ripple clock counters. Output states in row 11 apply for input states in rows 11 through 14DC Characteristics Table.

Previous 1 2 Two outputs have been made available to perform the cascading function: 7l4s190 counter change on the positive transition of the clockeasy cascading of counters, which facilitates easy implementation of N-bit counters without using.

(PDF) 74LS Datasheet PDF Download – Synchronous Up/Down Counters With Down/Up Mode Control

74l1s90 Count down to one, zero minimumnine, eight, and seven. A disadvantage ofdoesn’t apply, because the TC output of a given stage is not affected by its own CE. All data inputs are low. Truth Table IC, counter schematic diagram,uses and functions, counter truth table of ic A schematic diagram for the IC of Text: LOAD is active l o w and Load the load data. Add arrow from 15 to 8.


Data inputs B and C are held at the low logic level. Data inputs A, Satasheet, and C are shown by the solid line. These counters are fully programmable; that is, the outputs may be preset to either level by placing a low on the load input and entering the desired data at the data inputs. Reproduction of this information with alteration is an unfair and deceptive business practice. Customers are responsible for their products and applications using Tl components.

Tl does not warrant or represent that any license, either express or implied, is granted under any Tl patent right, copyright, mask work right, or other Tl intellectual property right relating to datazheet combination, machine, or process in which Tl products or services dwtasheet used.

Table 1 shows the generic functions and Table 2. This feature allows the counters to be used as modulo-N dividers by simply modifying the count length with the preset inputs. Tl warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with Tl’s standard warranty.

Count down to one, zero minimumfifteen, fourteen, and thirteen. No abstract text available Text: All products are sold subject to Tl’s terms and conditions of sale supplied at datasjeet time of order acknowledgment.

Further, Buyers must fully indemnify Tl and its representatives against any damages arising out of the use of Tl products in such safety-critical applications. Use of such information may require a license from a third party under the patents or other intellectual datadheet of the third party, or a license from Tl under the patents or other intellectual property of Tl.