What is the Additional Feature ?

Name: MM74C949N
Brand: Texas Instruments
SKU: MM74C949N
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

Cart ( )

lmages are for reference only See Product Specifications

Texas Instruments MM74C949N

Part No.:: MM74C949N

Manufacturer:: Texas Instruments

Package:: -

Datasheet:

Description:: IC ADC 8BIT MPU 8CH MUX 28DIP

In Stock:: 2566

Quantity:: Add To Cart

For more detailed including pricing and shipping

: Quick response, quick quotation

: Flash shipment, no worries after sales

: Original channel, guarantee of the authentic products

Please send RFQ , we will respond immediately.

Purchase and inquiry

MM74C949N Specifications

Packaging:
Tube
Series:
*
Product Status:
Obsolete
Number of Bits:
-
Sampling Rate(PerSecond):
-
Number of Inputs:
-
Input Type:
-
Data Interface:
-
Configuration:
-
Ratio-S/H:ADC:
-
Number of A/D Converters:
-
Architecture:
-
Reference Type:
-
Voltage-Supply Analog:
-
Voltage-Supply Digital:
-
Features:
-
Operating Temperature:
-

MM74C949N this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including MM74C949N price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for MM74C949N to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

Purchase in icwhale.com

There is no doubt that you may place an order without registering to icwhale.com.

We strongly suggest you sign in our shop before purchasing as you can track your order real-time tracking.

Means of Payment in icwhale.com

For your convenience, we support multiple payment methods in USD, including PayPal, Credit Card, wire transfer. and Alipay.

RFQ (Request for Quotations) in icwhale.com

It is recommended to acquire for quotations to get the latest prices and inventories about the parts.

Our sales will reply to your request by email within 24 hours.

Warm reminder

1. You'll receive an order information email in your email inbox. (Please remember to check the spam folder if you didn't hear from us).

2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.

Shipping & Handling

Shipping fee starts at $35, but some countries will exceed $35. For example (South Africa, Brazil, India, Pakistan, Israel, etc.)

The basic freight (for package ≤0.5kg or corresponding volume) depends on the time zone and countries.

Shipping Method

Currently, our products are shipped through DHL, FedEx, SF, UPS and China Post.

Order Tracking for International Orders

Once your order has been shipped, the tracking number will be sent to the email address registered to your account. This information can also be viewed when logged into your account in the "my account" page.

MM74C949N information

Views：

MM74C949N Application Introduction

MM74C949N is a versatile interface IC commonly used in electronic design projects, particularly in applications requiring keyboard or keypad scanning functionality.

Application Scenario:

In a digital door lock system, MM74C949N can be utilized to scan the keypad for user input and interface with a microcontroller to authenticate access.

Circuit Design:

To effectively integrate MM74C949N into your design project, consider the following steps:

1. Keypad Connection:

Connect the keypad matrix to the input pins of MM74C949N. Ensure proper row-column scanning configuration to detect keypresses accurately.

2. Microcontroller Interface:

Interface MM74C949N with a microcontroller, such as an Arduino or PIC, using standard communication protocols like SPI or I2C. Assign dedicated GPIO pins for communication and control.

3. Power Supply:

Provide a stable power supply to MM74C949N to ensure reliable operation. Use voltage regulators and decoupling capacitors to filter noise and prevent voltage spikes.

4. Signal Integrity:

Implement proper signal conditioning techniques to maintain signal integrity during keypad scanning. Minimize noise and cross-talk to prevent erroneous key detection.

5. Thermal Management:

Ensure adequate thermal dissipation for MM74C949N to prevent overheating. Use heat sinks or thermal pads if necessary, especially in high-power or high-frequency applications.

Optimization Techniques:

To optimize your MM74C949N design, consider the following techniques:

- Power Efficiency: Implement low-power scanning algorithms to minimize power consumption and extend battery life in portable devices.

- Noise Immunity: Add filtering capacitors and use shielded cables to improve noise immunity and prevent false key detections.

- ESD Protection: Incorporate ESD protection devices to safeguard MM74C949N from electrostatic discharge and enhance device longevity.

- PCB Layout: Design the PCB layout carefully to minimize signal traces' length and optimize routing for better signal integrity and EMI performance.

- Firmware Optimization: Develop efficient firmware routines to enhance keypad scanning speed and responsiveness, ensuring a seamless user experience.

Considerations:

When designing with MM74C949N, pay attention to:

- Key Debouncing: Implement debounce algorithms to filter out mechanical switch bounce and ensure accurate keypress detection.

- Compatibility: Verify compatibility with the chosen microcontroller and ensure proper configuration of communication parameters for seamless integration.

- Environmental Factors: Consider operating temperature and environmental conditions to select appropriate components and ensure reliable performance in various scenarios.

- Compliance: Adhere to relevant industry standards and regulations, such as RoHS and REACH, to ensure compliance and market acceptance of your design.

MM74C949N FAQ

1. How to order MM74C949N on icwhale.com?

Currently, icwhale.com 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 icwhale.com guarantee that MM74C949N is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the MM74C949N. All suppliers must pass our qualification reviews before they can publish their products including MM74C949N on icwhale.com; we pay more attention to the channels and quality of MM74C949N products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the MM74C949N price and inventory displayed accurate?

The price and inventory of MM74C949N 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 MM74C949N?

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 MM74C949N we delivered, we will accept the replacement or return of the MM74C949N 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 MM74C949N.

(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