Key facts
- Brand
- Atmel
- Model
- AT28HC256
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-07
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Atmel AT28HC256 256K EEPROM Datasheet
Datasheet 16 pages · 449 KB · EN
The document describes the Atmel AT28HC256, a high-performance Electrically Erasable and Programmable Read Only Memory (EEPROM). The device contains 256K of memory organized as 32,768 words by 8 bits and is manufactured with advanced nonvolatile CMOS technology. It offers access times to 70 ns with power dissipation of just 440 mW.
Read onlineAtmel AT28HC256 specifications
| Memory Capacity | 256K (32,768 words x 8 bits) |
|---|---|
| Read Access Time | 70 ns (Min) |
| Page Write Cycle Time | 3 ms or 10 ms Maximum |
| Active Current | 80 mA |
| Standby Current (CMOS) | 3 mA |
| Endurance | 10^4 or 10^5 Cycles |
| Data Retention | 10 Years |
All Atmel AT28HC256 documents by type
Datasheet 2
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the supply voltage for the AT28HC256?
The device operates on a single 5V + 10% supply.
How is inadvertent write protection handled?
Atmel incorporates both hardware and software features to protect the memory against inadvertent writes.
What is the read access time of the AT28HC256?
The device provides a fast read access time of 70 ns.
What is the standby current consumption?
The standby current is 3 mA.