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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Maybe you will be OK afterall, or maybe a simple part change can fix everything up. The load is between the IC and ground source current? However, driving a LED at 20 mA is often unnecessary today.
My understanding is that is has a max of 35 mA per pin, but a total of 70 mA for the Datasheett. 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.
My solution is to use P channel mosfets to switch the power. I should have added that there are 2 LEDS being driven from each output.
74HCTN 데이터시트(PDF) – NXP Semiconductors
Email Required, datasheeet never shown. You are not wrong. Nik Middleton 6 5. Hi, basic schematic added. The IC has a global limit of 70 mA.
74HC573; 74HCT573 Octal D-type Transparent Latch; 3-state
Data sheet is here: Home Questions Tags Users Unanswered. Get on to your supplier and ask them to justify their thoughts. Post as a guest Name. Would really appreciate some input.
I’m loosing some voltage 4. A simple indicator LED will be fine at 5 mA. Sign up or log in Sign up using Google.
Sign up using Email and Password. Q are 8 outputs and attach to equipment that requires 20 ma. And that supply current is also the main part of the current that feeds outputs.
74HCTN – Nexperia – PCB Footprint & Symbol Download
I’ve been reading datashee lot of data sheets of late looking for chips that will work for a small project. It would have been so simple to use a current drain driver but sadly it’s not an option. You can edit your question and then click on the icon that looks like a schematic symbol, and it will load the schematic editor.