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USB low-full-high speed peripherals Forum Discussions

NXTY_Nishinaga
Level 4
Level 4
25 replies posted 5 solutions authored 50 sign-ins

CY7C65223D-32LTXIについて質問させてください。

外形底面にExposed PADがありますが、この部分の実装基板設計における推奨設計を教えてください。

放熱のためにVIAを打つことになると思いますが、この放熱VIAについて大きさ(径)や配置個数の推奨を教えて頂きたく思います。

よろしくお願いいたします。

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TakashiO
Moderator
Moderator
Moderator
100 sign-ins 50 replies posted 25 solutions authored

Hi Nishinaga-san,

Unfortunately, there is no referable evaluation board for CY7C65223D. But you can refer to CYUSBS236 board since  CY7C65223D is spun out from CY7C65215.

Also, There was a typo in the recommended via pitch in Vias condition below. Please refer to following condition when designing your board.

Via Diameter :10mil(0.254mm)
Via Pitch : 1.4mm
# of Vias : 9(3x3)

Regards,

TakashiO

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4 Replies
Biren
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First like given 250 sign-ins 50 solutions authored

Hello,

Please follow FAQ 3 for this details - https://community.infineon.com/t5/Knowledge-Base-Articles/USB-Serial-Bridge-Controller-FAQs-KBA22405...

This same applicable for CY7C65223D

Regards,
Biren

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TakashiO
Moderator
Moderator
Moderator
100 sign-ins 50 replies posted 25 solutions authored

@NXTY_Nishinaga 様、

インフィニオンコミュニティをご利用いただき、有難うございます。

下記の条件での実装を推奨いたします。Via径につきましては、大きくなる分には放熱性に良い方向に働きますので、はんだ流れが許容できる範囲でもう少々径の大きいViaもご使用いただけます。Via pitchにつきましては多少数値を変更されても問題ございません。
Via Diameter :10mil(0.254mm)
Via Pitch : 1.5mm
# of Vias : 9(3x3)

何卒、よろしくお願いいたします。

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NXTY_Nishinaga
Level 4
Level 4
25 replies posted 5 solutions authored 50 sign-ins

Hello,

Thank you very much for your answer.

Is there an evaluation board for CY7C65223D-32LTXI?

I have searched and found that CYUSBS232 has CY7C65213, CYUSBS234 has CY7C65211, and CYUSBS236 has CY7C65215, but I could not find an evaluation board with CY7C65223D.

Regards,

Koichi Nishinaga.

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TakashiO
Moderator
Moderator
Moderator
100 sign-ins 50 replies posted 25 solutions authored

Hi Nishinaga-san,

Unfortunately, there is no referable evaluation board for CY7C65223D. But you can refer to CYUSBS236 board since  CY7C65223D is spun out from CY7C65215.

Also, There was a typo in the recommended via pitch in Vias condition below. Please refer to following condition when designing your board.

Via Diameter :10mil(0.254mm)
Via Pitch : 1.4mm
# of Vias : 9(3x3)

Regards,

TakashiO

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