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Ebun.1
Senior
Dec 12, 2019 11:40 PM UTC
Question

QSPI Flash in STM32F769I-DISCO

Hello.

STM32F769I-DISCO has two QSPI FLASH.

What are the roles of U12 and U250 in the circuit diagram?

Thank you.

This topic has been closed for replies.

4 replies

Tesla DeLorean
Guru
Dec 13, 2019 2:35 AM UTC

Provides for the use of a QSPI device with an alternate land pattern.

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Ebun.1
Ebun.1Author
Senior
Dec 16, 2019 12:42 AM UTC

Hello Mr. clive1

Is the U250 a spare device?

Tesla DeLorean
Guru
Dec 16, 2019 4:56 AM UTC

It is a ONE or the OTHER choice

U12 MT25QL512ABB1EW9 (MICRON)

OR

U250 MX25L51245G (MACRONIX)

The devices have different physical footprints, the PCB had both land patterns to accommodate either device.

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Ebun.1
Ebun.1Author
Senior
Dec 16, 2019 5:12 AM UTC

Hello Mr. clive1

I understand.

Thank you for your response.