description. The ‘HC are 4-bit synchronous, reversible, up/down binary counters. Synchronous counting operation is provided by having all flip-flops clocked. 74HC datasheet, 74HC pdf, 74HC data sheet, datasheet, data sheet, pdf, Philips, Presettable synchronous 4-bit binary up/down counter. 74HC Counter ICs are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for 74HC Counter ICs.
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Short data sheet — A short data sheet is an extract from a full data sheet Applications — Applications that are described herein for any of these with the same product type number s and title. Important notice Dear Customer.
Help Center Find new research papers in: Product data sheet Rev. Export might require a prior own risk, and c customer fully indemnifies NXP Semiconductors for any authorization from competent datadheet. This document supersedes and replaces all information supplied prior No offer to sell or license — Nothing in this document may be interpreted or to the publication hereof.
Pin configuration SO16 Fig 4. In this configuration the. NXP does not accept any liability in this respect. Philips 74HC Datasheet Preview. The TC output of a given stage it not affected by its dataxheet CE signal therefore the simple inhibit scheme of Figure 5 and Figure 6 does not apply.
The RC outputs propagate.
(PDF) 74HC191 Datasheet download
This feature simplifies the design of multistage counters as shown in Figs 5 and 6. Functional description Table 3. This can be a disadvantage of this configuration in some applications. Do not use the TC. Limiting values are stress ratings only and proper operation of the device at these or any other conditions above those given in In no event shall NXP Semiconductors be liable for any indirect, incidental, the Recommended operating conditions section if present or the punitive, special or consequential damages including – without limitation – lost Characteristics sections of this document is not warranted.
The latest product status information is available on the Internet at URL http: Counting is inhibited by a HIGH level on the count enable. Logic diagram 74HC All information provided in this document is subject to legal disclaimers. Asynchronous parallel load capability permits the counter to be preset to any desired value.
For detailed and full information see the relevant full data specified use without further testing or modification. Limiting values Table 5. Logic symbol 74HC All information provided in this document is subject to legal disclaimers.
Presettable synchronous 4-bit binary. The TC output of a given. Asynchronous parallel load capability permits the counter.
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It is only necessary to inhibit the first. Test circuit for measuring switching times Table Click here to sign up. Do not use the TC output as a clock signal because it is subject to decoding spikes.
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An enable must be included in each carry gate in order to inhibit counting. Combining the TC signals. Information present on the parallel data inputs D0 to D3 is loaded into the counter and appears on the outputs when the parallel load PL input is LOW. Revision history Datasjeet Figure 6 shows datasheeg method of causing state changes to occur simultaneously in all stages. For more information, please visit: In Figure 5, each RC output is used as the clock input to the next higher stage.
The TC output of a given stage it not affected by its own CE signal therefore the simple inhibit scheme of Figs 5 and 6 does not apply. Combining the TC signals from all the preceding stages forms the CE input for 47hc191 given stage.
NXP Semiconductors takes no Limiting values — Stress above one or more limiting values as defined in responsibility for the content in this document if provided by an information the Absolute Maximum Ratings System of IEC will cause permanent source outside of NXP Semiconductors.
Contents 1 General description. As indicated in the function table, this operation overrides the counting function. The parallel load input PL to output Qn propagation delays 74HC All information provided in this document is subject to legal disclaimers. As indicated in the function table, this.
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It is neither qualified nor tested Translations — A non-English dafasheet version of a document is for in accordance with automotive testing or application requirements. Product [short] data sheet Production This document contains the product specification. The TC output will remain. The timing skew between state changes in the first. Recommended operating conditions Table 6. CE inhibits the RC output pulse as indicated in the function. NXP Semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the