74HCT573N DATASHEET PDF

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

However, driving a LED at 20 mA is adtasheet unnecessary today. I’ve been reading a lot of data sheets of late looking for chips that will work for a small project.

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand datasueet Terms of Service. I should have added that there are 2 LEDS being driven from each output. I’m loosing some voltage 4. 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.

As is stated in 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. Home Questions Tags Users Unanswered. Post as a guest Name.

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74HCTN 데이터시트(PDF) – NXP Semiconductors

This website has a built-in schematic editor. The load is between the IC and ground source datasheeg You are not wrong. I have no control over end devices. It would have been so simple to use a current drain driver but sadly it’s not an option. It’s not always LED’s but they are non inductive. Hi, basic schematic added.

Get on to your supplier and ask them to justify their thoughts. Q are 8 outputs and attach to equipment that requires 20 ma. Nik Middleton 6 5. My solution is to use P channel mosfets to switch the power.

Maybe you will be OK afterall, or maybe a simple part change can fix everything up. Sign up using Facebook. My understanding is that is has a max of 35 mA per pin, but a total of 70 mA for the IC.

Would really appreciate some input. Sign up or log in Sign up using Google.

Glad to know i’m not going nuts. Data sheet is here: A simple indicator LED will be fine at 5 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 it will. You can edit your question and then click on the icon that looks like a schematic symbol, and it will load the schematic editor. The IC has a global datasheeh of 70 mA. And that supply current is also the main part of the current that feeds outputs.

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74HCTN Datasheet pdf – Octal D-type transparent latch; 3-state – NXP Semiconductors

Email Required, but never shown. 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 belief is that turning on all 8 outputs at 20 ma exceeds the IC max current. I’m hoping someone can help a noob out here.

You should make sure that the design actually tries to do that.