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.

Author: Jull Yozshutilar
Country: Lithuania
Language: English (Spanish)
Genre: History
Published (Last): 26 April 2004
Pages: 421
PDF File Size: 7.73 Mb
ePub File Size: 12.7 Mb
ISBN: 299-7-27150-874-2
Downloads: 16732
Price: Free* [*Free Regsitration Required]
Uploader: Gular

Skip to main content. Log In Sign Up. Important notice Dear Customer. Nexperia is an industry leading supplier of Discrete, Logic and PowerMOS semiconductors with its focus on the automotive, industrial, computing, consumer and wearable application markets In data sheets and application notes which still contain NXP or Philips Semiconductors references, use the references to Nexperia, as shown below.

All rights reserved Should be replaced with: If you have any questions related to the data sheet, please contact our 74gc191 sales office via e-mail or telephone details via salesaddresses nexperia.

Asynchronous parallel load capability permits the counter to be preset to any desired value. Information present on the parallel data inputs D0 to Datasheet is loaded into the counter and appears on the outputs when the parallel load PL input is LOW.

This operation overrides the counting function. Do not use the TC output as a clock signal because it is subject to decoding spikes.

The TC signal is used internally to enable the RC output. This feature simplifies the design of multistage datqsheet as shown in Figure 5 and Figure 6. In Figure 5, each RC output is used as the clock input to the next higher stage.

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.

This can be a datasheft of this configuration in some applications. Figure 6 shows a method of causing state changes to occur simultaneously in all stages. In Figure 7, the configuration shown avoids ripple delays and their associated restrictions. Datasueet the TC signals from all the preceding stages forms the CE input for a given stage.

An enable must be included in each carry gate in order to inhibit counting. 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 apply.


Inputs include clamp diodes.

This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC. Ordering datsaheet Table 1. Functional diagram Fig 2. Logic symbol 74HC All information provided in this document is subject to legal disclaimers. Product data sheet Rev. Pin configuration SO16 Fig 4. Functional description Table 3. Logic datashet 74HC All information provided in this document is subject to legal disclaimers.

Typical timing sequence 7. Limiting values Table 5. Recommended operating conditions Table 6. Static characteristics Table 7. Dynamic characteristics Table datashdet.

The clock input CP 74hc19 outputs Qn, TC propagation delays, clock pulse width and maximum clock frequency 74HC All information provided in this document is subject to legal disclaimers. The parallel load input PL to output Qn propagation delays 74HC All information provided in this document is subject to legal disclaimers. 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.

Measurement points are given in Table 9. Test circuit for measuring switching times Table Revision history Table Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Product [short] data sheet Production This document contains the product specification.

The latest product status information is available on the Internet at URL http: 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 74gc191 additions.

NXP Semiconductors does not give any damage.

74HC191 Datasheet

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. A short data sheet is intended products are for illustrative purposes only.

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. For detailed and full information see the relevant full data specified use without further testing or modification.

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. 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.


74HC Datasheet(PDF) – NXP Semiconductors

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 NXP datasheeh not accept any liability in this respect. 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.

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.

Constant or profits, lost savings, business interruption, dahasheet related to datasheef removal or repeated exposure to limiting values will datasheeet and irreversibly affect replacement of any products or rework charges 7hc191 or not such the quality and reliability of the device. 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. Export might require a prior own risk, and c customer fully indemnifies NXP Semiconductors for any authorization from competent authorities.

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. In the datahseet 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 dwtasheet applications, use and specifications, and b are the property of their respective owners.

Contact information For more information, please visit: Contents 1 General description. For more information, please visit: Remember me on this computer. Enter the email address you signed up with and we’ll email you a reset link. Click here to sign up. Help Center Find new research papers in: