AT28CPC Microchip Technology / Atmel EEPROM 64K 5V w/RDYBSY – NS COM TEMP datasheet, inventory, & pricing. Microchip AT28C64 EEPROM are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for Microchip AT28C64 EEPROM. AT28CPC 64k (8k X 8) Parallel EePROMs Features. Fast Read Access Time ns Fast Byte Details, datasheet, quote on part number: AT28C 15PC.
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AT28C64 Datasheet pdf – 64K EEPROM with Ready/Busy – Atmel
Email Required, but never shown. In the future I will do many of these circuits, however I haven’t yet decided if I need the full 32KB of memory. They can usually answer these types of questions.
At28x64 no connect could mean do not connect or does not connect. Home Questions Tags Users Unanswered. Other times there may not even be a wire bond between the silicon and the pin, so you are free to do whatever you want with it.
I created a circuit in which all the address inputs of an AT28C are connected to outputs of shift registers 74HC This does exactly what you say, i. After looking at the datasheets, I notice the difference in pin-out between the two chips is that on the AT28C64, A13 and A14 are replaced with NC no connects.
The datasheet of the AT28C64 makes it pretty clear: That’s the obvious part. Post as a guest Name. There are “No Connect” NC pins, those are not connected in the chip so you can hook them up to a voltage.
AT28C64 Datasheet PDF
For memory chips in particular, pins that get used as address pins in larger parts and are NC pins in smaller parts can usually be connected.
AT28CPC Price & Stock | DigiPart
And if the datasheet is not absolutely clear, contact the vendor. Sign up using Email and Password. Sign up or log in Sign up using Google. Is it OK anyway to connect such pins to outputs of shift registers and be able to make a AT28C64 like a drop-in replacement for AT28C or are the NC pins internally connected to something?
With that resistor in series with pin 1, swapping in an 8K ROM instead of the 32K one should work just fine.
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