Key facts
- Brand
- Atmel
- Model
- AT24C256
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-07
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ATMEL AT24C128/AT24C256 handbook
Datasheet 15 pages · 229 KB · EN
This document describes the Atmel AT24C128 and AT24C256, which are low-voltage serial electrically erasable programmable read-only memory (EEPROM) devices. They offer capacities of 131,072 bits and 262,144 bits respectively, organized as 16,384 or 32,768 words of 8 bits each.
Read onlineAtmel AT24C256 specifications
| Memory Capacity (AT24C128) | 131,072 bits / 16,384 words of 8 bits |
|---|---|
| Memory Capacity (AT24C256) | 262,144 bits / 32,768 words of 8 bits |
| Endurance | 100,000 Write Cycles |
| Data Retention | 40 Years |
| Operating Temperature Range | -55°C to +125°C |
| Maximum Operating Voltage | 6.25V |
Source: ATMEL AT24C128/AT24C256 handbook
All Atmel AT24C256 documents by type
Datasheet 1
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What are the available voltage versions?
The devices are available in 5.0V (4.5V to 5.5V), 2.7V (2.7V to 5.5V) and 1.8V (1.8V to 3.6V) versions.
How many devices can be cascaded on a single bus?
The device's cascadable feature allows up to 4 devices to share a common 2-wire bus.
What is the maximum I²C clock frequency for the AT24C128/AT24C256?
The devices support a maximum clock frequency of 400 kHz.
How many AT24C128/AT24C256 devices can be cascaded on the same bus?
Up to four devices can share a common two‑wire bus.