LED Display Drivers Integrated Circuits (ICs)
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MAX7221CWG Product Details
The MAX7219/MAX7221CWG are compact, serial input/output common-cathode display drivers that interface microprocessors (μPs) to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs. Included on-chip are a BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and an 8x8 static RAM that stores each digit. Only one external resistor is required to set the segment current for all LEDs. The MAX7221CWG is compatible with SPI, QSPI, and MICROWIRE, and has slew-rate-limited segment drivers to reduce EMI.
A convenient 4-wire serial interface connects to all common μPs. Individual digits may be addressed and updated without rewriting the entire display. The MAX7219/MAX7221CWG also allow the user to select code-B decoding or no-decode for each digit.
The devices include a 150μA low-power shutdown mode, analog and digital brightness control, a scan-limit register that allows the user to display from 1 to 8 digits, and a test mode that forces all LEDs on.
For applications requiring 3V operation or segment blinking, refer to the MAX6951 data sheet.
- 10MHz Serial Interface
- Individual LED Segment Control
- Decode/No-Decode Digit Selection
- 150μA Low-Power Shutdown (Data Retained)
- Digital and Analog Brightness Control
- Display Blanked on Power-Up
- Drive Common-Cathode LED Display
- Slew-Rate Limited Segment Drivers for Lower EMI (MAX7221)
- SPI, QSPI, MICROWIRE Serial Interface (MAX7221)
- 24-Pin DIP and SO Packages
- Bar Graph Displays
- Industrial Controllers
- LED Matrix Displays
- Panel Meters
- Number of Digits
- Number of Segments
- Mounting Style
- Package / Case
- SOIC-24 Wide
- Operating Supply Voltage
- 4 V to 5.5 V
- Maximum Supply Current
- 330 mA
- Maximum Operating Temperature
- + 70 C
- Minimum Operating Temperature
- 0 C
- High Level Output Current
- - 45 mA
- Low Level Output Current
- 320 mA
- Power Dissipation
- 941 mW
- Factory Pack Quantity
MAX7221 data sheet for guidance
MAX7221CWG Related Products
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1.We provide 90 days warranty.
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.
- Q: How does Jotrin guarantee that MAX7221CWG is the original manufacturer or agent of MAXIM?
- We have a professional business development department to strictly test and verify the qualifications of MAXIM original manufacturers and agents. All MAXIM suppliers must pass the qualification review before they can publish their MAX7221CWG devices; we pay more attention to the channels and quality of MAX7221CWG products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of MAX7221CWG chips? Including MAXIM original factory information, Display, Monitor - Interface Controller application, MAX7221CWG pictures?
- You can use Jotrin's intelligent search engine, or filter by Display Drivers category, or find it through Maxim Integrated Information page.
- Q: Are the MAXIM's MAX7221CWG price and stock displayed on the platform accurate?
- The MAXIM's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for MAX7221CWG, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
- Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
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Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
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Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
- Q: What is the process for returns or replacement of MAX7221CWG?
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 MAX7221CWG we delivered, we will accept the replacement or return of the MAX7221CWG 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 MAX7221CWG.
(3)The MAX7221CWG 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
More details about return electronic components please see our Return & Change Policy.
- Q: How to contact us and get support, such as MAX7221CWG datasheet pdf, MAX7221 pin diagram?
- Need any After-Sales service, please feel free contact us: firstname.lastname@example.org
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