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Description
MICROCHIP 25LC640A-E/SN EEPROM, SPI, 64 Kbit, 8K x 8bit, 10 MHz, SOIC, 8 PinsThe 25LC640A E SN is a 64kb SPI Bus Serial EEPROM memory accessed via a simple serial peripheral interface (SPI) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a chip select (CS) input. Communication to the device can be paused via the hold pin (HOLD). While the device is paused, transitions on its inputs will be ignored, with the
The 25LC640A-E/SN is a 64kb SPI Bus Serial EEPROM memory accessed via a simple serial peripheral interface (SPI) compatible serial bus. The bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is controlled through a chip select (CS) input. Communication to the device can be paused via the hold pin (HOLD). While the device is paused, transitions on its inputs will be ignored, with the exception of chip select allowing the host to service higher priority interrupts.
- Low-power CMOS technology
- 8192 x 8-bit organization
- 32-byte page
- Self-timed erase and write cycles (5ms maximum)
- Block write protection - Protect none, 1/4, 1/2 or all of array
- Built-in write protection - Power-on/off data protection circuitry
- Sequential read
- 1000000 erase/write cycles endurance
- >200-year Data retention
- >4000V ESD protection
Applications
Communications & Networking, Automotive
Warnings
ESD sensitive device, take proper precaution while handling the device.
Product details
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 125°C |
| Clock Frequency | 10MHz |
| No. of Pins | 8Pins |
| Memory Size | 64Kbit |
| Product Range | 64Kbit Serial SPI EEPROMs |
| Memory Case Style | SOIC |
| Supply Voltage Min | 2.5V |
| IC Interface Type | SPI |
| EEPROM Memory Configuration | 8K x 8bit |
| Packaging | Each |
| Supply Voltage Max | 5.5V |
| MSL | MSL 1 - Unlimited |
Other details
| Brand | MICROCHIP |
| Part Number | 25LC640A-E/SN |
| Quantity | Each |
| Technical Data Sheet EN | |
| Miscellaneous EN | |
| Product Change Notice EN |
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.2 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
I like it!
Color: Khaki, Size: Large
Worth the price. Comfortable. Great assortment of colors.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Sweet
Color: Navy Blue, Size: Large
Good fit, solid quality.
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Reviewed in the United States on May 11, 2026
★★★★★ 5
Good quality
Color: White, Size: 3X-Large
For this item is best to get a size up. They run small, but the quality is very good.😊
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Very nice shirts but unusually long sleeves
Size: Large, Color: Light Green
PJ PAUL JONES Mens Dress Shirts Wrinkle Free Stretch Button Down Shirt. I bought white, coffee, grey, autumn green and apricot. Colors are true to the ads. I'm 6' , 170 lbs. I bought these in Large. They fit very well in shoulders, chest, and my big belly. As many reviews have stated, the sleeves are unusually long - coming down past my palms to my fingers. I would give them a 4 rating for that but I bought them with the intention of making them short sleeve. The white shirt is just too nice to change so I'll reserve that for weddings and funerals. The apricot is very nice but I just wouldn't wear that color as a casual shirt but it does go with my brown blaser so I'll keep it for rare occasions. I washed them in warm and put them thru warm dryer and didn't notice any shrinkage which I wouldn't
expect with polyester. Very good shirts at very good price.
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Reviewed in the United States on March 30, 2026
★★★★★ 5
A Solid Buy
Size: XX-Large, Color: Black
Purchased this shirt to wear to a concert. I love the material because it's stretchy and flexible unlike the traditional cotton. It's mainly wrinkle free but I ran a warm iron to get out the creases from being folded. I wore this with gray pants and it made my outfit feel put together. The sleeves are very easy to roll up and won't come undone. A very nice shirt to add to your clothing collection.
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Reviewed in the United States on April 10, 2026