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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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. Home Questions Tags Users Unanswered. 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.
AT28C64 Datasheet PDF
Sign up using Email and Password. I created a circuit in which all the address inputs of an AT28C are connected to outputs of shift registers 74HC They can usually answer these types of questions.
With that resistor in series with pin 1, datassheet in an 8K ROM instead of the 32K one should work just fine. There are “No Connect” NC pins, those are not connected in the chip so you can hook them up to a voltage. And if the datasheet is not absolutely clear, contact the vendor.
AT28C64 Datasheet PDF
Sign up or log in Sign up using Google. Well no connect could mean do not connect or does not connect.
The datasheet of the AT28C64 makes it pretty clear: 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. In the future I will do many of these datzsheet, however I haven’t yet decided if I need the full 32KB of memory.
That’s the obvious part. Post as a guest Name.
This does exactly what you say, i.
AT28C64 Datasheet(PDF) – ATMEL Corporation
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?
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