74C922N

Name: 74C922N
Brand: Fairchild Semiconductor
Rating: 4.5 (10 reviews)
Author: Lisleapex

Perfect for prototyping or production use, this 74C922N encoder provides reliable and repeatable switching in an industry-standard package

1 Effective Inventory

74C922N

Effective Inventory1

Perfect for prototyping or production use, this 74C922N encoder provides reliable and repeatable switching in an industry-standard package

Manufacturer Part # : 74C922N
Other Name : MM74C922N
Package/Case: 18-DIP
Brand: Fairchild Semiconductor
Product Categories : Signal Switches, Multiplexers, Decoders
Series : 74C922

Quality Assurance

All parts procured from our supply chain network undergo a rigorous incoming inspection process. This meticulous inspection ensures that the parts received by our customers are authentic and meet the required standards. Additionally, we maintain detailed records of these inspections to ensure transparency and traceability throughout the supply chain.

Certification

We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.

Shipping & Payment

About Shipping

We generally ship orders within a few business days through reliable shipping carriers such as FedEx, SF, UPS, or DHL. We also have support for other shipping methods. If you would like to inquire about specific shipping details or costs, please don't hesitate to reach out to us.

About Payment

We accept various payment methods, including VISA, MasterCard, UnionPay, Western Union, PayPal, and other channels.

If you have a specific payment method in mind or would like to inquire about rates and other details, please feel free to contact us.

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Service & Packaging

About After Sales Service

All Parts Extended Quality Guarantee

Initiate the application within 90 days from the shipment date.

Confirm the return or exchange with our staff.

Maintain the goods in their original condition as received.

Lastly, please note that the eligibility for return or exchange of goods is subject to an assessment of the actual condition of the returned items. We will evaluate the received goods before finalizing the return or exchange process. If you have any inquiries or require further assistance regarding returns or exchanges, please don't hesitate to contact us at [email protected]

About packaging

Regarding packaging, our products are carefully packed in anti-static bags to provide ESD anti-static protection. The outer packaging is durable with secure closure. We support various packaging methods such as Tape and Reel, Cut Tape, Tube, or Tray.

Example

Tape and Reel

Cut Tape

Tube or Tray

74C922N DataSheet

Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!

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74C922N Description

The 74C922N is a 16-Key Encoder 1 x 8:4 from ON Semiconductor, designed for reliable data transmission in various applications. This device is ideal for industrial communication systems, featuring high ESD protection and low power consumption.

Features

High ESD Protection: Offers reliable performance in harsh environments.
Low Power Consumption: Optimized for low power usage, ideal for battery-powered devices.

Applications

The 74C922N is commonly used as a 16-key encoder in various industrial communication systems.

Where to Use:

Industrial automation systems
Automotive communication systems
Building automation systems
Battery-powered devices

Manufacturer

The 74C922N is manufactured by ON Semiconductor, a global leader in semiconductor technology.

Packages

The 74C922N comes in an 18-pin DIP (0.300", 7.62mm) package, making it suitable for compact circuit designs.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category !

IC Chips

FAQs

What is 74C922N?

The 74C922N is an integrated circuit (IC) designed as a 16-key encoder typically used for keypads in various applications. It converts the key press combinations into a 4-bit binary equivalent output for easy interfacing with microcontrollers or digital systems.

How Does 74C922N Work?

The 74C922N functions by scanning the key matrix connected to its inputs and generating a 4-bit binary code corresponding to the pressed key. It employs a priority encoding scheme to identify the highest priority key press, enabling sequential scanning of the keys for accurate detection. The output data can be used for further processing or control purposes.

How Many Pins does 74C922N have and What are the Functions of the Pinout Configuration?

The 74C922N is typically available in a 20-pin DIP (Dual Inline Package) configuration. The pinout configuration includes:

VCC: Power supply pin.
GND: Ground pin.
A0-A3: Key matrix inputs for row/column scanning.
STB: Strobe input for initiating a key press scan.
OE: Output enable for tri-state output control.
RST: Reset pin for initializing the scanning process.
Y0-Y3: 4-bit binary output pins.

What are the Pros and Cons of 74C922N?

Pros:

Easy Integration: Simplifies keypad interfacing with microcontrollers or digital systems.
Priority Encoding: Efficiently detects key presses with a priority scheme.
Binary Output: Provides a straightforward 4-bit binary output for key identification.
Versatile Applications: Suitable for various applications requiring keypad input processing.

Cons:

Limited Key Capacity: Supports up to 16 keys, which may be insufficient for larger keypads.
Additional Components: May require external components for debouncing or noise filtering depending on the application.

Are There Any Equivalents/Alternatives to 74C922N for Recommendation?

The 74LS922 from Texas Instruments is a similar 16-key encoder IC.
Alternatives to the 74C922N include the HT9170B from Holtek Semiconductor and the MM74C922 from Fairchild Semiconductor.