74HC574 PDF

Tri State Octal D Type Flip-Flop. Specifications. The MM74HC high speed octal D-type flip-flops utilize advanced silicon-gate P-well CMOS technology. 74HC Datasheet, 74HC Octal D-type Flip-Flop Datasheet, buy 74HC The 74HC is identical in pinout to the LS The device inputs are compatible with standard CMOS outputs; with pull−up resistors, they are compatible with.

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Tony EE rocketscientist 1. Available for online order. Does 74HC replaces the 74LS?

Operation of the OE input does not affect the state of the flip-flops. 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.

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74HC Octal D Flip-Flop

We GRobotronics also save your IP address as a security precaution, but in can only be viewed by our staff. THe reason the part numbers changed root number xxx is due to the functional differences in output enable to tri-state for the HC version.

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If you believe that your personal data has been misused, you have the right to lodge a complaint with a supervisory authority. Track my order s. The HC version is output tri-state enabledwhile the data input clock latch is always active.

If this implies can it be blindly substituted for an existing design using 74LS part? Sign in Register Email. Even unloaded outputs aren’t consistent, unless you use a pullup resistor.

NO This mainly due to Vih min threshold can exceed Voh guaranteed if driven by another 74LSxx part and differences in the Disable function. Orders Wish list Track my order s. This mainly due to Vih min threshold can exceed Voh guaranteed if driven by another 74LSxx part and differences in the Disable function. I looked at their data sheet and found out they are similar regardless their pin out, may be i’m missing some the big picture ao that’s why i’m asking precisely if they do function the same, thanks for any info that helps.

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Register for a new account. The LS version is enables changes on input data to be clocked while the output is always 74hc57 The HC version is output tri-state enabledwhile the data input clock latch is always active. Sign up using Facebook. 7h4c574 clock CP and an output enable OE input are common to all flip-flops. Bolts Nuts Washer Standoff Spacers. The 74HC is an octal D-type flip-flops featuring separate D-type inputs for each flip-flop and 3-state outputs for bus-oriented applications.

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flipflop – 74HC or 74LS? – Electrical Engineering Stack Exchange

Very Good Average Fair Poor. Loaded LS outputs are not guaranteed to be able to drive HC inputs. Can any one tell me if the 74HC replaces the 74LS in a circuit of a frequency counter? Post as a guest Name. Sign up or log in Sign up using Google. Password Forgot your password?

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. Sign up using Email and Password.

I agree to have my personal data processed as follows. In logic terms, yes. Look at thresholds and speeds. If you continue, we assume that you agree to receive cookies from this site. Your name will appear next to your review or comment, visible to everyone. But yes they more or less perform the same tasked as a gated 8 bit D latch, except the difference in functions are