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Description
MICROCHIP AT28C256F-15JU EEPROM, Parallel, 256 Kbit, 32K x 8bit, 5 MHz, PLCC, 32 PinsThe AT28C256F 15JU is a 256k high performance Electrically Erasable and Programmable Read Only Memory (EEPROM) organized as 32768 words by 8 bit. Manufactured with Atmels advanced nonvolatile CMOS technology, the device offers access times to 150 ns with power dissipation of just 440mW. When the device is deselected, the CMOS standby current is less than 200A. The AT28C256 is accessed like a static RAM for the read or write cycle without the need for
The AT28C256F-15JU is a 256k high-performance Electrically Erasable and Programmable Read-Only Memory (EEPROM) organized as 32768 words by 8-bit. Manufactured with Atmels advanced nonvolatile CMOS technology, the device offers access times to 150 ns with power dissipation of just 440mW. When the device is deselected, the CMOS standby current is less than 200�A. The AT28C256 is accessed like a static RAM for the read or write cycle without the need for external components. The device contains a 64-byte page register to allow writing of up to 64-byte simultaneously. During a write cycle, the addresses and 1 to 64-byte of data are internally latched, freeing the address and data bus for other operations. Following the initiation of a write cycle, the device will automatically write the latched data using an internal control timer. The end of a write cycle can be detected by DATA Polling of I/O7. Once the end of a write cycle has been detected a new access for a read or write can begin.
- Fast read access time - 150ns
- Automatic page write operation
- Internal control timer
- Fast write cycle times
- Low power dissipation
- Hardware and software data protection
- Data polling for end of write detection
- High reliability CMOS technology
- Endurance - 10? or 10? cycles
- Data retention - 10 years
- CMOS and TTL Compatible inputs and outputs
- JEDEC Approved byte-wide pinout
- Green product and no Sb/Br
Applications
Computers & Computer Peripherals, Industrial, Aerospace, Defence, Military
Product details
| Operating Temperature Min | -40�C |
| Operating Temperature Max | 85�C |
| Clock Frequency | 5MHz |
| No. of Pins | 32Pins |
| Memory Size | 256Kbit |
| Product Range | 256Kbit Serial Parallel EEPROMs |
| Memory Case Style | PLCC |
| Supply Voltage Min | 4.5V |
| IC Interface Type | Parallel |
| EEPROM Memory Configuration | 32K x 8bit |
| Packaging | Each |
| Supply Voltage Max | 5.5V |
| MSL | MSL 3 - 168 hours |
Other details
| Brand | MICROCHIP |
| Part Number | AT28C256F-15JU |
| Quantity | Each |
| Technical Data Sheet EN |
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4.5 ★★★★★
Based on 2331 reviews
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Product Reviews
★★★★★ 5
Practical
Color: 3 prong, Size: 5FT
It’s super practical, I use it for my bedroom behind the bed/headboard. It’s super useful because of the variety of inputs/ports. The compact size of the dock is good for hiding.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Great product
Color: 3 prong, Size: 5FT
This product works perfectly, I plugged it in the back wall of my bed and connected everything I needed and completely forgot it was there, which means it holds the plugs perfectly in place and so far I have not had any problem. The length is perfect for a queen size bed.
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Reviewed in the United States on March 11, 2026
★★★★★ 5
Great shelves!
Size: 10"D x 15.7"W, Color: Black, Size: 10"D x 15.7"W, Color: Black
Perfect for what I needed. I sanded them, painted them white, then hung them above my washing machine and dryer to hold some laundry supplies. They made laundry easier! The are sturdy. It took no time to install. They’re heavy but not so heavy that they sag or drag. It came with screws and anchors that made installation a breeze. They look great! Highly recommend.
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Reviewed in the United States on April 30, 2026
★★★★★ 5
Stylish & sturdy 3 floating shelves
Size: 11.6"D x 15.7"W, Color: Black, Size: 11.6"D x 15.7"W, Color: Black
I bought these 12-inch deep floating shelves for my son’s room and they turned out great. The extra depth makes a big difference compared to standard floating shelves. He’s able to fit books, trophies, and some of his collectibles on them without everything feeling cramped.
The shelves feel sturdy and well made once installed. The hardware that came with them worked well, and they sit flush against the wall which gives that nice clean floating look. They really helped add storage while also making the room look more organized and put together. I added lights underneath which I also bought here on Amazon...
I also like that they’re deep enough to actually be functional, not just decorative. My son is using them every day and they’re holding up really well.
Overall I’m very happy with this purchase and would definitely buy them again for another room.
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Reviewed in the United States on March 12, 2026
★★★★★ 5
Good looking shelves
Size: 11.6"D x 15.7"W, Color: Black, Size: 11.6"D x 15.7"W, Color: Black
These shelves turned out perfect for my bedroom project! I read lots of reviews about people having trouble with the wall anchors not holding up, but I’m going to equate that to user error. I had no trouble installing these and even took a couple shortcuts.
I only used two wall anchors per shelf, but also pre checked the holes for studs. I used one dry wall screw per shelf as well. Knowing how wall anchors can be, I used one drill bit size smaller than the directions suggested. They said use 1/4, but I used 15/64. Probably could have gotten away with one smaller than that at 7/32.
With all screws, I made sure not to press too hard into the wall and just turn the screw. That helps the anchors and threads stay snug in the dry wall. There was only one shelf that came out feeling a little saggy, but I think it’s because the holes in the shelf are not quite right. However, it still holds strong and no problem with a box of shoes on it.
All this being said, I pre weighed my shoe boxes and knew I only needed to hold about 5-7 lbs. I was super detailed with measuring the bracket spots to make sure everything was spaced and leveled appropriately.
The wood on the shelves does feel a little cheap, but it looks great so I couldn’t care less. I would purchase these shelves again and might have to as my display collection continues to grow.
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Reviewed in the United States on March 20, 2026