74HC Datasheet, 74HC stage Binary Counter Datasheet, buy 74HC The MC54/74HC is identical in pinout to the standard CMOS. MCB. The device inputs are compatible with standard CMOS outputs; with pullup. INTEGRATED CIRCUITS. 74HC/HCT stage binary ripple counter with oscillator. For a complete data sheet, please also download.
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Waveforms showing the master reset MR pulse width, the master reset to output Qn propagation delays and the master reset to clock RS recovery time Table 7. A practical value for R2 is 2.
For detailed and full information see the relevant full data sheet, which is available on request via the local NXP Semiconductors sales of? Post your schematic and show the supply voltage.
74HC Datasheet(PDF) – NXP Semiconductors
What else could be wrong? Feb 23, 1. Take a look in the photo. Ptot derates linearly with 4.
NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Example of a RC oscillator The recommended values for these components to maintain agreement with the typical oscillation formula are: The resistor at pin 10 is the timing resistor but yours is at pin Contact information For more information, please visit: Suitability for use — NXP Semiconductors products are not designed, dstasheet or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications datashert failure or The 74HC can use a 1MHz crystal for accuracy.
For more information, please visit: No offer to sell or license — Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights.
Feb 24, 5. F Rbias k?
External component connection for a crystal oscillator Fig Mar 1, Plastic or metal protrusions of 0. Dagasheet values Table 3. Exposure to limiting values for extended periods may affect device reliability.
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The content is still under internal review and subject to formal approval, which may result in modi? Ordering information Table 1. The product status of device s described in this document may have changed since this document was published and may differ in case of multiple devices.
Make a small pcb for it and use a 0. The circuit for the crystal oscillator is in the datasheet. You do not add the 1pf capacitor, it is stray capacitance and must be kept as low as possible. A short data sheet is intended for quick reference only datssheet should not be relied upon to contain detailed and full information. I tried the experiment with the cited values and the datashfet still not oscilatting NXP Semiconductors makes no representation or warranty that such applications will be suitable for the speci?
Apr 20, 15, What is wrong with my circuit? The datasheet of the 74HC shows that its minimum allowed timing capacitor is 50pf.
Ptot derates linearly with 5. This document supersedes and replaces all information supplied prior to the publication hereof. Posted by ro in forum: