Fever
Junior Member level 1
Hi,
I have a few questions a SRAM external chip I want to use.
It has 20 address lines, from A0 to A19. It should mean that my address range is from 0x0 to 0xFFFFF. Since this is a 1024K-8bit array, I guess my real usable range is 0x0 to 0x3FF.
Does it mean I use only pins A0 to A9 ?
Does it mean that in this case the column decoder is useless, and I can tie to ground pins from A10 to A19 ?
Here is the datasheet of the product.
https://www.farnell.com/datasheets/2309579.pdf?_ga=2.42585318.296745661.1527512105-1452230848.1523286740&_gac=1.258948600.1527583888.Cj0KCQjw9LPYBRDSARIsAHL7J5lIBVD2HIJyJMFRU7K1q6pBJZ5nWnk0jlZZZ43O4Lngec2vJ7ux3uwaAmEwEALw_wcB
Thank you for your help.
I have a few questions a SRAM external chip I want to use.
It has 20 address lines, from A0 to A19. It should mean that my address range is from 0x0 to 0xFFFFF. Since this is a 1024K-8bit array, I guess my real usable range is 0x0 to 0x3FF.
Does it mean I use only pins A0 to A9 ?
Does it mean that in this case the column decoder is useless, and I can tie to ground pins from A10 to A19 ?
Here is the datasheet of the product.
https://www.farnell.com/datasheets/2309579.pdf?_ga=2.42585318.296745661.1527512105-1452230848.1523286740&_gac=1.258948600.1527583888.Cj0KCQjw9LPYBRDSARIsAHL7J5lIBVD2HIJyJMFRU7K1q6pBJZ5nWnk0jlZZZ43O4Lngec2vJ7ux3uwaAmEwEALw_wcB
Thank you for your help.