AT28C256 32Kx8 Paged Parallel EEPROM, 256Kbit
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Prices updated: 13 Oct 2026
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About this product
The AT28C256 is a 256 Kbit (32K x 8) parallel EEPROM that supports paged write operations for faster data writing. It is used to store configuration data, lookup tables or firmware in microcontroller and embedded systems that need non-volatile parallel memory. It is typically used in 5 V designs.
Specifications
- Density
- 256 Kbit
- Organization
- 32K x 8
- Interface
- Parallel
- Write mode
- Paged write
- Supply voltage
- 5 V
Frequently asked questions
Does it need an address latch with an 8051 microcontroller?
Yes, with a multiplexed bus such as the 8051 family, an external 74HC373 or similar latch is needed to hold the low address byte. The chip has 15 address lines.
What does paged write mean?
Paged write lets you load up to 64 bytes into an internal buffer and write them together, which is faster than writing one byte at a time. Check the datasheet for the exact page size.
