7489 DATASHEET PDF

The SGA is a high performance SiGe HBT. MMIC Amplifier. NOTE: The recommended operating current in the preliminary datasheet was mA. MOSFET are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for MOSFET. Datasheet, In Stock. SN datasheet, SN circuit, SN data sheet: TI – BIT RANDOM- ACCESS READ/WRITE MEMORY,alldatasheet, datasheet, Datasheet search site.

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Note that the LED current is limited to less than 2 mA, minimizing excess dissipation 74889 the chip. If I connect the ME to high, then this behavior does not change.

I followed the datasheet.

(PDF) 7489 Datasheet download

I would hook the up as follows: You have all of the address pins constantly held low giving the addressyou have all of the data bits held low except for bit 1 giving a nibble or word in the datasheet of Also, for the inputs address and data input I did choose 4.

Post as a guest Name. Yeah I know It’s dataaheet but what the hell! I assume that the memory enable should just stay low at all times, but I did try moving it around. Email Required, but never shown.

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ME high should leave outputs high. A resistor obeys Ohm’s law, and choosing a resistor value is 74489 matter of the permissible voltage and current, and power voltage drop x current according to application. The outputs are “active low” – if you write a High 1 to a memory location, you will read back a Low 0. ME always low, and hopefully can toggle! Switch resistance of 0.

I got more and I have finally gotten everything to work. Use the ‘ ‘ symbol to find names in a long list of comments so that person gets the comment sent to them.

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. Just for the record, I dagasheet a in quite successfully. Also, if say D2 is brought high with the other inputs low, then all the LEDs are off. Ratasheet for the answer. Post as a guest Name.

Understanding pull-up resistors and the memory chip – Electrical Engineering Stack Exchange

Rather than 7849 moving wires to change your inputs, it would be well worth your while to get a DIP switch and a bunch of resistors or a SIP resistor network. The runs hot to mW under normal conditions, so it might not be damaged. ME alone is lo and! It may not be able to drive LED’s directly. Do I need some resistors somewhere in all of this?

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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. Catasheet comment, click on the “add a comment” link by the answer satasheet question your commenting to. I am guessing that the s that I got are broken. Thanks for the answer.

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Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policy dtaasheet, and that your continued use of the website is subject to these policies. ME high regardless of the! This IC can sink 12mA max per output pin. The outputs are inverted OC type.

I have been learning about the memory chip.