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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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Rather than just 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.

(PDF) 7489 Datasheet download

I have attempted to draw a schematics of my setup for the below. The pdf sheet on this part specifies a load of mA as being a safe maximum load, as a current sink.

Sign up or log in Sign up using Google. ME high regardless of the! For your switched inputs, a pullup resistor ought not to burn up, nor prevent a logic LOW level suitable for the inputs 0. For LED drive, you do the same thing: Why are two LEDs on? I would hook the up as follows:.

I got carried away that I might be able to help – so datashfet away that I didn’t see you’d put in a more succinct answer before I sent in my blurb: The following works well! Email Required, but never shown.


What should I be looking for in the datasheet? I had two of these that turned out to be broken see here for previous question on this. Sign up using Email and Password. It 4789 not be able to drive LED’s directly. I see dagasheet for the question on how big a pull-up resistor in general should be. Post as a guest Name. I have some jumper cables to control the input pins 4, 6, 10, 12 and I have been connecting them to either ground or 5V directly.

Sign up using Email and Password. Sign up using Facebook. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. At present only D2 should be on.

Datasheet PDF –

I will study these other answers. Home Questions Tags Users Unanswered. I would like to see a schematics for how connect the IC with resistors and other things needed. At ohm’s the LED current is only datashret. For example, in the answer to the earlier question, the resistors R1, R2, R3, and R4, were suggested to be 2.


For high-speed signals, a lower value may be required to ensure that the signal changes fast enough when the signal should go high. So now I dataheet the following schematics more or less copied from here. Sign up or log in Sign up using Google. Schematics for using IC memory Ask Question. I would hook the up as follows: Since datassheet outputs are open collector the output is an NPN transistor with the emitter grounded, and the collector connected only to the output pinyou should use a pull-up resistor of 4K7 or so when connected to a TTL input.

Datasheet pdf – 64 Bit RAM – Fairchild Semiconductor

This question has already been answered in some detail. Sign up using Facebook. A shunt resistor in parallel with the LED will ensure lights-off, and may improve the high-side logic margin because of the up-to-2V offset from the LED.

The outputs are “active low” – if you write a High 1 to a memory location, you will read back a Low 0. To comment, click on the “add a comment” link by the answer or question your commenting to.