MM74C922N
Reliable interface for various applications, ensuring seamless communication





Brands: Onsemi
Mfr.Part #: MM74C922N
Datasheet: MM74C922N Datasheet (PDF)
Package/Case: PDIP-18
Product Type: Signal Switches, Multiplexers, Decoders
RoHS Status:
Stock Condition: 8,793 pcs, New Original
Warranty: 1 Year Ovaga Warranty - Find Out More
0
1
MM74C922N General Description
The MM74C922N encoder sets a standard for performance and functionality in the field of encoders, decoders, multiplexers, and demultiplexers. Its innovative design and superior encoding capabilities make it a valuable asset for engineers and designers seeking reliable solutions for their electronic projects

Features
20 KEY ENCODERSpecifications
Parameter | Value | Parameter | Value |
---|---|---|---|
Product | Decoders, Encoders, Multiplexers & Demultiplexers | Logic Family | 74C |
Number of Bits | 4 bit | Number of Input Lines | 8 Input |
Number of Output Lines | 5 Output | Propagation Delay Time | 150 ns at 5 V, 80 ns at 10 V, 60 ns at 15 V |
Supply Voltage - Min | 3 V | Max Supply Voltage | 15 V |
Minimum Operating Temperature (°C) | - 55 | Maximum Operating Temperature (°C) | + 125 |
Mounting Style | Through Hole | Function | Encoder |
Height | 3.35 mm | Input Voltage | - 300 mV to 300 mV |
Length | 22.73 mm | Logic Type | Encoder |
Number of Circuits | Single | Collector-Emitter Saturation Voltage | 3 V to 15 V |
MAX Output Current | 8 mA | Output Voltage | - 300 mV to 300 mV |
Pd - Power Dissipation | 700 mW | Series | MM74C922 |
Factory Pack Quantity | 20 | Width | 6.35 mm |
Unit Weight | 0.044801 oz |
Shipping
Shipping Type | Ship Fee | Lead Time | |
---|---|---|---|
![]() |
DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
![]() |
Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
![]() |
UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
![]() |
TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
![]() |
EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
![]() |
REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time:Shipping fee depend on different zone and country.
Payment
Terms of payment | Hand Fee | |
---|---|---|
![]() |
Wire Transfer | charge US$30.00 banking fee. |
![]() |
Paypal | charge 4.5% service fee. |
![]() |
Credit Card | charge 3.5% service fee. |
![]() |
Western Union | charge US.00 banking fee. |
![]() |
Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
-
Step1 :Product Inventory
-
Step2 :Pressure Relief Packaging
-
Step3 :Anti Static Packaging
-
Step4 :Protective Packaging
-
Step5 :Sealed Packaging
-
Step6 :Preparation for shipment
We will inspect and count all goods before shipping to ensure that all products are intact and in accurate quantity, and will fully package them to ensure that they will not be damaged during transportation.
Q: How can I order the MM74C922N?
A: To place an order for the MM74C922N, select the "Add to Cart" button associated with the product listing on our website. Once selected, you can finalize your purchase by proceeding to the checkout page, where you can enter your payment and shipping information.
Q: What is the warranty period for the MM74C922N?
A: We offer a 1-year warranty on the MM74C922N. This warranty covers any defects in materials and artistry under normal use. During the warranty period, if the product is found to be defective, it will be repaired or replaced at no charge. For further details, please refer to our warranty policy.
Q: How does Ovaga ensure the authenticity of MM74C922N from Onsemi?
A: Ovaga has a dedicated business development team that rigorously tests and verifies the credentials of original Onsemi manufacturers and authorized agents. All Onsemi suppliers must pass a qualification review before they can list their MM74C922N products on our platform. We emphasize sourcing from reliable channels and maintaining high product quality standards, ensuring you can make your purchase with confidence.
Q: How can I find detailed information about the MM74C922N chips, such as application notes, factory information, and images?
A: You can utilize Ovaga's intelligent search engine, filter by the Ethernet PHY Products category, or visit the Onsemi information page to find comprehensive details about the MM74C922N.
Q: Are the price and stock information for MM74C922N on Ovaga's platform accurate?
A: Inventory levels for Onsemi products can fluctuate and may not be updated in real time. The information is refreshed periodically within 24 hours. To confirm stock availability and final pricing, you must confirm your order with an Ovaga salesperson or customer service representative before proceeding with payment.
Q: Can I place orders offline with Ovaga?
A: Yes, offline orders are accepted. You can navigate to the "My Orders" section and enter transaction management to place your order. Reviewing the "Order Details" and proceeding to place the order is straightforward. Additionally, you may benefit from coupons or selected gifts when ordering online.
Q: What payment methods are accepted by Ovaga?
A: Ovaga accepts various payment methods, including Wire Transfer, PayPal, Credit Cards, Western Union, and Money Gram.
Q: How is shipping arranged, and how can I track my package?
A: Customers can choose from industry-leading freight companies such as DHL, FedEx, UPS, TNT, EMS, and Registered Air Mail. Once your order is processed for shipment, you will receive an email with the shipping status and tracking number. Note that tracking information may take up to 24 hours to be displayed by carriers. Typically, express delivery takes 2-5 days.
Q: What is the return or replacement process for MM74C922N?
A: Ovaga conducts Pre-Shipment Inspections (PSI) on all orders to ensure quality before shipment. Suppose there are issues such as quantity discrepancies, incorrect items, or visible defects (e.g., breakage or rust), and they are acknowledged by us. In that case, returns or replacements will be accepted under the following conditions:
- ●The defect must be reported within 365 days after delivery.
- ●The product must be unused and in its original, unopened packaging.
- ●Requesting Return Authorizations must be obtained.
For the return process:
- ●Please inform us within 365 days of receiving the product.
- ●Obtain Return Authorization from our team.
- ●Please refer to our After-Sale Matters for more detailed instructions.
Q: How can I contact Ovaga for support, including obtaining datasheets or pin diagrams for the MM74C922N?
A: For any after-sales support or technical inquiries, including requests for datasheets or pin diagrams, please get in touch with us via email at [email protected].
Q: What can you tell me about Ovaga's quality assurance practices?
A: Ovaga is committed to maintaining the highest standards of quality. We are certified under ISO14001, ISO 9001, IATF16949, ISO13485, and DUNS standards by the Quality Systems Registrar. This certification signifies that our operational systems meet stringent international standards in quality management. Our compliance is regularly reviewed and tested to ensure ongoing adherence to these standards, affirming our commitment to quality and continuous improvement.
Q: What do the ISO, IATF, and DUNS certifications mean for customers of Ovaga?
A: Our ISO, IATF, and DUNS certifications assure customers that Ovaga operates systems that are both accurate and comprehensive, meeting the rigorous requirements of the ISO, IATF, and DUNS standards. This certification underscores our long-term commitment to continuous improvement across our operations. As a note to our customers, while we strive for accuracy in product data on our website, we recommend referring to the manufacturer's datasheet or catalog for confirmed product specifications before placing an order. If you identify any discrepancies, please get in touch with us immediately.
Part points
-
The MM74C922N chip is a keyboard encoder that receives input from a matrix keyboard and converts it into a binary code. It has 16 input lines, allowing it to support up to 16 keys. The chip uses a 4x4 matrix format for key arrangements and generates an 8-bit binary output. It is commonly used in applications requiring keypad interfacing, such as calculators and microcontrollers.
-
Equivalent
Some equivalent products of the MM74C922N chip are the CD74HC238E, CD4543BE, and PCF8576CH. -
Features
MM74C922N is a 16-key encoder with an internally latched output for decoding keyboard matrix interface. It eliminates the need for external diodes with key-matrix circuits and includes on-chip pull-up resistors. It can handle a debounce two-key roll-over and converges to key press/release in maximum 5ms. -
Pinout
The MM74C922N is a 16-pin integrated circuit (IC) that functions as a 4 x 4 key matrix (16-key) and keyboard encoder. It provides a debounce feature, scans and encodes key inputs, and has output interfacing capability for microprocessors or display drivers. -
Manufacturer
The manufacturer of the MM74C922N is Fairchild Semiconductor. It is a global company that specializes in the development and manufacturing of semiconductor devices and integrated circuits. They supply various industries including automotive, consumer electronics, telecommunications, and industrial. -
Application Field
The MM74C922N is commonly used as a keypad encoder and decoder in various applications such as security systems, industrial control panels, and electronic locks. It can also be used as a key matrix controller, allowing multiple keys to be scanned and encoded in a simple and efficient manner. -
Package
The MM74C922N chip is available in a DIP (Dual In-Line Package) package type. It has a 18-pin form factor, measuring approximately 9.4mm x 19.7mm in size.
Assembly Advice
No need to assemble boards by yourself anymore—Ovaga is here to help! We offer free assembly services for parts like MM74C922N. Simply sign in to Ovaga and take advantage of discounts and free assembly options. Let us handle the work while you focus on your projects!
Learn more about our PCB services-
Pre-order the parts you need through Ovaga’s platform.
-
Once your parts are pre-ordered, simply place a PCBA order with us, and we’ll take care of the assembly for you.
-
Ovaga will produce and assemble your boards efficiently, with a quick turnaround of just 3 days!
PCB & SMT
PCB Assembly and Production Services
Professional Model >>Circuit Assembly Showcase

We provide high quality products, thoughtful service and after sale guarantee
-
We have rich products, can meet your various needs.
-
Minimum order quantity starts from 1pcs.
-
Lowest international shipping fee starts from $0.00
-
365 days quality guarantee for all products
Recommend
Assemble PCBs
One-Stop PCB & PCBA Services From design to production, delivered fast and cost-effectively. Certified quality:lATF16949,1S013485 IS09001.1S014001.
Fulfillment: Turnkey or consigned
Quantity: 1-10,000+pcs.
Quality Grade: IPC3
Lead time: as short as 2 days
Other: AOI. X-ray SPI, ICT