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hii i am just going through the schematic of FM4-176L-S6E2CC-ETH kit and found that address pin MAD19 and MAD20 has no use because their is no pin for these pin in datasheet of SRAM make me clear if i am wrong thank you
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Hi,
Yes, the Pins (H1 and G2) are not used by the SRAM placed on the board, because to address 256k you only need 18 bit.
But even thought the Pins MAD19 and MAD20 are not used by that particular SRAM, they are still routed to the footprint to allow a replacement of the SRAM by a bigger one (up to 1M x 16bit) if needed.
regards,
Achim
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Hi,
Yes, the Pins (H1 and G2) are not used by the SRAM placed on the board, because to address 256k you only need 18 bit.
But even thought the Pins MAD19 and MAD20 are not used by that particular SRAM, they are still routed to the footprint to allow a replacement of the SRAM by a bigger one (up to 1M x 16bit) if needed.
regards,
Achim
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Thank you aceh for reply and precious time