Yes.I am wanting to make the circuit from Ben Eaters videoand i can only get my hands on the 28C64-15 and not the 28c16, would i be able to use it in the same way and just not use the extra pins
If you know where to put your data it does not matter. The 28C64 has four times the data space as the 28C16. If you tie the unused address lines low you will use the 2K (bytes) block that goes from 0x0000 to 0x07FF in the larger device. If you tie them both high then your data will be in the 2K block from 0x1800 to 0x1FFF.does it matter if i tie the unused pins to high or low?
They are both EEPROMs. IIRC, 16K is the smallest they made. Some manufacturers had a 256K part; maybe larger.And is there a EEPROM that i can replace it with
The unused pins must be tied HIGH or LOW. Since you only need 256 addresses, you can choose where to put them. You can use the first 256 addresses, the last, or any other "block" of 256 addresses.does it matter if i tie the unused pins to high or low?
are there any easier to get alternatives for the 28c16 eeprom that i can program and use in the exact same wayYes.
Tie the spare address inputs low. Otherwise, your other inputs will be selecting data at the top end of the memory, not the section starting at address zero.
Probably not. The reason you can't get them is economics. They made a certain number and when those were gone and replaced by parts with more memory for the same price it was no longer good business. IMHO you are SOL.are there any easier to get alternatives for the 28c16 eeprom that i can program and use in the exact same way
Nothing is going to be easier to use than a 16 bit wide EPROM. Jameco.com has 27C210 and 27C1024 in stock.are there any easier to get alternatives for the 28c16 eeprom that i can program and use in the exact same way
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