Name: MM74HC257J
Brand: National Semiconductor
SKU: MM74HC257J
Availability: InStock
Rating: 5 (101 reviews)

MM74HC257J

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零件編號	MM74HC257J
製造商	National Semiconductor
描述	MUX, HC/UH SERIES, 2 LINE INPUT
數據表
封裝	-
ECAD
庫存	0 piece(s)
單價	Request a Quote
交貨期	待確認
預計送達時間	十二月 25 - 十二月 30 (選擇速遞服務)
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MM74HC257J參數

製造商	National Semiconductor
類別	積體電路 (IC) - 邏輯 - 訊號開關、多工器、解碼器
封裝	-
ECAD
系列	74HC
類型	Multiplexer
電路	4 x 2:1
獨立電路	1
電流 - 輸出高，低	7.8mA, 7.8mA
電壓源	Single Supply
電壓 - 電源	2V ~ 6V
工作溫度	-55°C ~ 125°C
安裝類型	-
包/箱	-
供應商設備包	-

MM74HC257J Packaging

MM74HC257J FAQ

1. How to order MM74HC257J on Heisener?

Currently, Heisener only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.
2. How does Heisener guarantee that MM74HC257J is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the MM74HC257J. All suppliers must pass our qualification reviews before they can publish their products including MM74HC257J on Heisener; we pay more attention to the channels and quality of MM74HC257J products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the MM74HC257J price and inventory displayed accurate?

The price and inventory of MM74HC257J fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.
5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.
6. What is the process for return or replacement of MM74HC257J?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the MM74HC257J we delivered, we will accept the replacement or return of the MM74HC257J only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of MM74HC257J.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations
7.How to contact us to get technical supports, such as MM74HC257J pin diagram, MM74HC257J datasheet?

If you need any after-sales service, please do not hesitate to contact us.

MM74HC257J 保證

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我們保證100％的客戶滿意度。

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質量保證

我們提供90天保修。

如果您收到的物品質量不合格，我們將負責您的退款或更換，但物品必須以原始狀態退回。

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MM74HC257J

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