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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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. Email Required, but never shown. 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 at8c64 in which all at8c64 address inputs of an AT28C are connected to outputs of shift registers 74HC Sign up using Email and Password.
After looking at the datasheets, I dattasheet the difference in pin-out between the two chips is that on the AT28C64, A13 and A14 are replaced with NC no connects. In the future I will do many of these circuits, however I haven’t yet decided if I need the full 32KB of memory.
AT28C64 Datasheet PDF
This does exactly what you say, i. The datasheet of the AT28C64 makes it pretty clear: They can usually att28c64 these types of questions.
Sign up using Facebook. Well no connect could mean do not connect or does not connect. Sign up or log in Sign up using At2c864. 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 & applicatoin notes – Datasheet Archive
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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AT28C64 Datasheet pdf – 64K EEPROM with Ready/Busy – Atmel
With that resistor in series with pin 1, swapping in an 8K ROM instead of the 32K one should work just fine. That’s the obvious part.
Home Questions Tags Users Unanswered. In general, except in cases where the manufacture is specifically supporting compatible footprints between different parts, you should not connect to the NC pins.