74HC191 DATASHEET PDF
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.
|Published (Last):||2 May 2005|
|PDF File Size:||15.62 Mb|
|ePub File Size:||11.42 Mb|
|Price:||Free* [*Free Regsitration Required]|
This operation overrides the counting function. The TC signal is used internally to enable the. All referenced brands, product names, service names and trademarks product for such automotive applications, use and specifications, and b are the property of their respective owners.
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 datashdet damages including – without limitation – lost Characteristics sections of this document is not warranted.
This can be a disadvantage of this configuration in some applications.
74HC 데이터시트(PDF) – NXP Semiconductors
Do not use the TC. Important notice Dear Customer.
Recommended operating conditions Table 6. The timing skew between state changes in the datasyeet and last stages is represented by the cumulative delay of the clock as it ripples through the preceding stages.
(PDF) 74HC191 Datasheet download
The TC datasheeet is used internally to enable the RC output. 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.
The timing skew between state changes in the first. The TC output of a given stage it not affected by its own CE signal therefore the simple inhibit scheme of Figure 5 and Figure 6 does not dataeheet. CE inhibits the RC output pulse as indicated in the function. An enable must be included in each carry gate in order to inhibit counting. Log In Sign Up. Do not use the TC output as a clock signal because it is subject to decoding spikes.
NXP Semiconductors takes no Ratasheet 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. Combining the TC signals. The TC output will remain. It is only necessary to inhibit the first.
In case of any inconsistency or conflict with the short data sheet, the Customers are responsible for the design and operation of their applications full data sheet shall prevail.
Constant or profits, lost savings, business interruption, costs related to the removal or repeated exposure to limiting values will permanently and irreversibly affect replacement of any products or rework charges whether or not such the quality and reliability of the device. Help Center Find new research papers in: An enable must be included in each carry gate in order to inhibit counting. For detailed and full information see the relevant full data specified use without further testing or modification.
Counting is inhibited by a HIGH level on the count enable. Ordering information Table 1. As indicated in the function table, this operation overrides the counting function. The timing skew between state changes in the first and last stages is represented by the cumulative delay of the clock as it ripples through the preceding stages.
As indicated in the function table, this. This feature simplifies the design of multistage counters as shown in Figure 5 and Figure 6. A short data sheet is intended products are 74hc1191 illustrative purposes only.
Functional vatasheet Fig 2. Dynamic characteristics Table 8. NXP Semiconductors does not give any damage. The RC outputs propagate. Logic diagram 74HC All information provided in this document is subject to legal disclaimers.
Measurement points are given in Table 9. Catasheet enables the use of current limiting resistors to interface inputs to voltages in excess of VCC. In the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer The parallel load input PL to output Qn propagation delays 74HC All information provided in this document is subject to legal disclaimers.
Functional description Table 3.
74HC191 Datasheet PDF
The parallel load input PL to clock CP recovery times, parallel load pulse width and output Qn transition times 74HC All information provided in this document is subject to legal disclaimers. Asynchronous parallel load capability permits datsaheet counter to be preset to any desired number.
Typical timing sequence 7. For more information, please visit: Product data sheet Rev. Datasneet you have any questions related to the data sheet, please contact our nearest sales office via e-mail or telephone details via salesaddresses nexperia.
Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Asynchronous parallel load capability permits the counter to be preset to any desired value.
Combining the TC signals from all the preceding stages forms the CE input for a given stage. It is neither qualified nor tested Translations — A non-English translated version of a document is for in accordance with automotive testing or application requirements.