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STM32MP157FAA1 DDR HARDWARE

JBalc.1
Associate

Welcome,

why for STM32MP157FAA1 at "STM32MP1 Series DDR memory routing guidelines examples" there is no terminating resistors?

1 ACCEPTED SOLUTION

Accepted Solutions
PatrickF
ST Employee

Hi @JBalc.1​ 

The example STM32MP15XXAA_1DDR3Lx16 target DDR3L x16 where termination resistors are optional (single memory, addresses/commands are point to point, short wires).

Regards

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View solution in original post

2 REPLIES 2
OlivierK
ST Employee

Hi JBalc.1 (Community Member)

More on this topic:

https://community.st.com/s/article/FAQ-STM32MP1-What-ST-offers-to-make-a-PCB-design-that-ensures-signal-integrity

Altium table length (provided in Altium projects) gives also the length to terminating resistor.

I hope this clarifies.

Rgds,

Olivier

PatrickF
ST Employee

Hi @JBalc.1​ 

The example STM32MP15XXAA_1DDR3Lx16 target DDR3L x16 where termination resistors are optional (single memory, addresses/commands are point to point, short wires).

Regards

In order to give better visibility on the answered topics, please click on 'Select as Best' on the reply which solved your issue or answered your question. See also 'Best Answers'

In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.