MSP430G2312:the filter capacitor for chattering countermeasures

user6232547

Prodigy 60 points

Part Number: MSP430G2312

MSP430G2312とMSP430Gシリーズに関する質問があります。
ポートがI / O入力に設定され、内部プルアップおよびプルダウン抵抗が有効になっている場合

機械的接触スイッチが外部から直接接続されている場合、オン/オフの接触によるポートのシンクとソースの電流はいくつありますか?

また、同じ仕様で、チャタリング対策のためのフィルタコンデンサの適切な値は
いくつですか?

ご不便をおかけして申し訳ございませんが、ご回答いただき、ありがとうございます。

5 months ago

0 Allen Gao 5 months ago

TI__Expert 4680 points

Hi guy,

Sorry I can't understand Japanese. Could you descript your question in English.

0 Keith Barkley 5 months ago in reply to Allen Gao

Guru 28090 points

Google translate:

I have a question about the series.
When the port is set to I / O input and internal pull-up and pull-down resistors are enabled

If the mechanical contact switch is connected directly from the outside, what is the current of the port sink and source due to the on / off contact?

Also, with the same specifications, the appropriate value of the filter capacitor for chattering countermeasures is
How old are you?

We apologize for any inconvenience, and thank you for your response.

0 Allen Gao 5 months ago in reply to Keith Barkley

TI__Expert 4680 points

Hi Keith,

Thanks.

www.ti.com/.../msp430g2312.pdf

Electrical Characteristics Chapter introduce the output port information.

MSP low-power microcontrollers

MSP low-power microcontroller forum

MSP430G2312:the filter capacitor for chattering countermeasures