74HCT573N DATASHEET PDF

74HC/HCT Octal D-type transparent latch;. 3-state. For a complete data sheet, please also download: • The IC06 74HC/HCT/HCU/HCMOS. The 74HC; 74HCT is a high-speed Si-gate CMOS device and is pin The 74HC; 74HCT has octal D-type transparent latches featuring separate. 74HCTN 74HC/HCT; Octal D-type Transparent Latch; 3-state;; Package: SOT (DIP20), Details, datasheet, quote on part number: 74HCTN.

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A simple indicator LED will be fine at 5 mA. Data sheet is here: Hi, basic schematic added. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

My solution is to use P channel mosfets to switch the power.

74HC573; 74HCT573 Octal D-type Transparent Latch; 3-state

You can edit your question and then click on the icon that looks like a schematic symbol, and it will load the schematic editor. Sign up or log in Sign up using Google. Nik Middleton 6 5. Home Questions Datashert Users Unanswered.

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By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Email Required, but never shown. The load is between the IC and ground source current?

It’s not always LED’s but they are non inductive.

You should make sure that the design actually tries to do that. Q are 8 outputs and attach to equipment that requires 20 ma. I’m hoping someone can help a noob out here. Get on to your supplier and ask them to justify their thoughts. My understanding is that is has a max of 35 mA per pin, but a total of 70 mA for the IC. Glad to know i’m not going nuts. I should have added that there are 2 LEDS being driven from each output.

I have no control over end devices. Would really appreciate some input. It would have been so simple to use a current drain driver but sadly it’s not an option. I’m loosing some voltage 4.

74HCTN PHILIPS 20P/DIP V無鉛

However, driving a LED at 20 mA is often unnecessary today. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy 74hct573j and cookie policyand that your continued use of the website is subject to these policies.

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As is stated dattasheet the below table the output max current is 35mA for each output, being the nominal current 20mA, enough to control a LED in every output. Sign up using Facebook.

This website has a built-in schematic editor. Maybe you will be OK afterall, or maybe a simple part change can fix everything up. You are not wrong. Post as a guest Name. The IC has a global limit of 70 mA. There is a ready made solution and the supplier insists it will be OK but having read the data sheet I don’t think datasheft will. I’ve been reading a lot of data sheets of late looking for chips that will work for a small project.

Sign up using Email and Password. And that supply current is also the main part of the current that feeds outputs. My belief is that turning on all 8 outputs at 20 ma exceeds the IC max current.