24LC21A-I/SN Memory by Microchip Technology
1Kb I2C Serial EEPROM for DDC1™/DDC2™ Monitor Identification
| Status: | Active |
|---|---|
| Series: | 24LC21A |
| RoHS: | Compliant |
Features
| Single Supply with Operation Down to 2.5V |
| Completely Implements DDC1™/DDC2™ Interface for Monitor Identification, Including Recovery to DDC1 |
| Pin and Function Compatible with 24LC21 |
| Low-Power CMOS Technology |
| 2-Wire Serial Interface Bus, I2C™ Compatible |
| 100 kHz (2.5V) and 400 kHz (5V) Compatibility |
| Self-Timed Write Cycle (including auto-erase) |
| Page Write Buffer for up to Eight Bytes |
| 1,000,000 Erase/Write Cycles Ensured |
| Data Retention > 200 years |
Specifications
| Density (Organization) | 1K bits (x8) |
|---|---|
| Operating Voltage Min. (V) | 2.5 |
| Oper Voltage Max (V) | 5.5 |
| Max. Clock Freq. | 400 kHz |
| Page Size (bytes) | 8 |
| Write Protected | False |
| Write Protect Scheme | None |
| Endurance | 1,000,000 |
| Pins | Packaging | 8 | SOIC |
| Temp Range | -40C to +85C |
| Packing Media | Tube (100) |
Last 6 months Inventory & Pricing History
Resources
Data Sheets |
|---|
| 24LC21A Data Sheet |
Brochures |
|---|
| Serial EEPROM - Automotive Brochure |
| Corporate Product Selector Guide |
| Electronic Solutions for Medical and Fitness |
| MPLAB® X IDE Product Overview |
| Memory Products Brochure |
Supporting Collateral |
|---|
| Serial EEPROM Cross Reference Guide |
Environmental Information
| JEDEC Indicator | e3 |
|---|---|
| ROHS | Compliant |
| China EFUP | Compliant |
| Device Weight (g) | 0.078 |
| Shipping Weight (kg) | 0.25 |
| Lead Count | 8 |
| Package Type | SOIC |
| Package Width or Size | .150In(3.90mm) |
| Soldering Composition | Matte Tin |
Alternative Descriptions
| 1K 2.5V DUAL MODE SERIAL EEPROM, IND | Microchip Technology |
| EEPROM Serial-I2C 1K-bit 128 x 8 3.3V/5V 8-Pin SOIC N | Avnet Silica |
| IC: EEPROM memory | TME |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a 24LC21A-I/SN?
Additional datasheets, footprints and schematics for 24LC21A-I/SN are listed on our Part Details page. You can also find images and similar parts to 24LC21A-I/SN on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for 24LC21A-I/SN on our Product Comparison page. Access via the 'View Pricing & Stock' button to view 24LC21A-I/SN price breaks, MOQs, lead times, inventory and SKUs from distributors.
What category does 24LC21A-I/SN fall under?
The 24LC21A-I/SN is listed under Semiconductors - ICs > Memory > EEPROM.
Can I view similar or alternative parts?
You can view similar parts to 24LC21A-I/SN when available in the EEPROM range under the specifications section at the bottom of the details page.
Who can I contact for technical support of the product?
Submit any questions directly to the customer support team of the distributor listing the product. For the 24LC21A-I/SN you can contact the distributor directly for product support, shipping queries etc.
Is the 24LC21A-I/SN RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for 24LC21A-I/SN have stock available?
Authorised distributors including Microchip Technology, Avnet Silica, Avnet America, TME and EBV Elektronik have stock available or on a lead time for 24LC21A-I/SN.
How do I check stock and lead times for all distributors?
Stock availability and lead times will be displayed for 24LC21A-I/SN often in real-time on the comparison pages.
What if I can't find stock of 24LC21A-I/SN?
You can fill out our help required form which you can use to request a quote for 24LC21A-I/SN from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.