The MC54/74HCA is identical in pinout to the LS .. data sheets and/or specifications can and do vary in different applications and actual performance. MCHCA datasheet, MCHCA circuit, MCHCA data sheet: MOTOROLA – Octal 3-State Noninverting Buffer Transceiver,alldatasheet, . MCHCA datasheet, MCHCA pdf, MCHCA data sheet, datasheet, data sheet, pdf, Motorola, Octal 3-State Noninverting Buffer.

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Sep 16, 59 4.

Data Sheets

Posted by kittoo in forum: Jun 8, 6. Jun 6, 4.

Submitted by admin on 6 June The output voltage will always be equal to the Vcc voltage, so here since datsaheet are converting the 3. So when I convert 3. Also we can reduce the input leakage current by disabling the inputs by using the OE pin as shown in the table above. Or can i just toggle the state of the DIR pin. A general circuit diagram using IC 74HC as a logic level converter is shown above. Or if you are looking for an IC to act as a 8-bit logic level converter then 74HC IC might be the right choice for you.


Your name or email address: That is not what it is designed for. Nov 1, 22 5. Jun 9, 9. TL — Programmable Reference Voltage.

Jun 5, 3. Yes, my password is: Guide to PCB Design: How to make use 74HC in bi-directional mode Reply to Thread.

Oct 10, 1, Jun 5, 1. Jun 6, 5. It also has a decent output current of 35mA and hence can be used to drive nominal loads. Feb 20, 2, You can’t use it as a bidirectional level converter.

Jun 9, 8. Irrespective of the direction, the output will be just about the Vcc level. Making data pins in parallel port bi-directional, Posted by arsmoriendi in forum: Jun 5, 2. Since the IC is a transceiver IC, Data can flow from input bus to output bus and also from output bus to input bus, by simply toggling the Direction pin DIR pin as required.

Out of these two sets one set can be used as input and the other set can be used as output.


DIR is only the direction. But it is not efficient for high speed operation or for bi-directional communication buses. The 74HC is an 8-bit transceiver IC with 74hhc245a output.

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In these cases we employ a logic level converter; the simplest logic level converter is a potential divider. Do you already have an account? Jun 9, 7. Quote 74hf245a the day. Meaning it has two set of pins A0-A7 and B0-B7in which each set has 8 pins. The 74HC is a 8-bit transceiver, I wanna use it to convert 3.

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