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.

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If you have any questions related to the data sheet, please contact our nearest sales office via e-mail or telephone details via salesaddresses nexperia. Figure 6 shows a method of causing state changes to occur datwsheet in all stages. An enable must be included in each carry gate in order to inhibit counting.

NXP Semiconductors makes no for quick reference only and should not be relied upon to contain detailed and representation or warranty that such applications will be suitable for the full information. The TC signal is used internally to enable the.

Information present on the parallel data inputs D 0 to D 3 is loaded into the counter and appears on the datahseet when the parallel load PL input is LOW. The TC signal is used internally to enable the RC output. NXP Semiconductors takes no Limiting values — Stress above xatasheet or more limiting datxsheet 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.

The parallel load input PL to output Qn propagation delays 74HC All information provided in this document is subject to legal disclaimers.

74HC Datasheet PDF –

This can be a disadvantage of this configuration in some applications. This feature simplifies the design of multistage counters as shown in Figure 5 and Figure 6.

Enter the email address you signed up with and we’ll email you a reset link. All rights reserved Should be replaced with: Product data sheet Rev. The timing skew between state datzsheet in the first and last stages is represented by the cumulative delay of the clock as it ripples through the preceding stages.

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CE inhibits the RC output pulse as indicated in the function.

Philips 74HC Datasheet Preview. The clock input CP to outputs Qn, TC propagation delays, clock pulse width and maximum clock frequency 74HC All information provided in this document is subject to legal disclaimers. Revision history Table This feature simplifies the design of multistage counters as shown in Figs 5 and 6. In the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer 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.

Recommended operating conditions Table 6.

Presettable synchronous 4-bit binary. 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.

Measurement points are given in Table 9. Limiting values Table 5. Test circuit for measuring switching times Table In Figure 7, the configuration shown avoids ripple delays and their associated restrictions. Do not use the TC output as a clock signal because it is subject to decoding spikes.

As indicated in the function table, this. This operation overrides the counting function. An enable must be included in each carry gate in order to inhibit counting. Product [short] data sheet Production This document contains the product specification. Important notice Dear Customer. 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.

Static characteristics Table 7. Customers should provide appropriate shall an agreement be valid in which the NXP Semiconductors product is design and operating safeguards to minimize the risks associated with their deemed to offer functions and qualities beyond those described in the applications and products. 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.

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The timing skew between state changes in the first. It is only necessary to inhibit the first stage to prevent counting in all stages, since a HIGH on CE inhibits the RC output pulse as indicated in the function table.

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. The content is still under malfunction of an NXP Semiconductors product can reasonably be expected internal review and subject to formal approval, which may result in to result in personal injury, death or severe property or environmental modifications or additions.

Typical timing sequence 7. As indicated in the function table, this operation overrides the counting function.

PDF 74HC191 Datasheet ( Hoja de datos )

NXP does not accept any liability in this respect. Logic symbol 74HC All datasyeet provided in this document is subject dwtasheet legal disclaimers. 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.

In this configuration the. Limiting values are stress ratings only and proper operation of the device at these or datashee 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 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.