Overview
The CAT24C256YI-G is a 256-Kb I2C Serial EEPROM produced by onsemi. It is internally organized as 32,768 bytes of 8 bits each, arranged in 512 pages of 64 bytes each. This device supports the Standard (100 kHz), Fast (400 kHz), and Fast-Plus (1 MHz) I2C protocol, making it versatile for various applications. The CAT24C256YI-G features a 64-byte page write buffer and includes hardware write protection to safeguard the entire memory. It is designed with low power CMOS technology and offers high reliability with on-chip ECC (Error Correction Code) and a robust endurance of 1,000,000 program/erase cycles.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Memory Size | 256 Kb | |
| Organization | 32,768 words of 8 bits each | |
| Page Size | 64 bytes | |
| Number of Pages | 512 | |
| I2C Protocol | Standard (100 kHz), Fast (400 kHz), Fast-Plus (1 MHz) | |
| Supply Voltage Range | 1.8 V to 5.5 V | V |
| Write Cycle Time | 5 ms | ms |
| Program/Erase Cycles | 1,000,000 | Cycles |
| Data Retention | 100 Years | Years |
| Operating Temperature Range | -40°C to 85°C | °C |
| Package Types | SOIC-8, TSSOP-8, UDFN-8 | |
| RoHS Compliance | Pb-Free, Halogen Free/BFR Free |
Key Features
- Supports Standard, Fast, and Fast-Plus I2C protocol
- 64-byte page write buffer
- Hardware write protection for entire memory via WP pin
- Schmitt triggers and noise suppression filters on I2C bus inputs (SCL and SDA)
- Low power CMOS technology
- On-chip ECC (Error Correction Code) for high reliability applications
- External address pins to address up to eight devices on the same bus
- Industrial and extended temperature range
- Pb-Free, Halogen Free/BFR Free, and RoHS Compliant
Applications
- Alarm Systems
- Audio Players
- Automotive Systems
- Cable Modems
- CDRW
- Cellular Phones
- Cordless Phones
- CRT/LCD Monitors
- Digital Still Cameras
- DRAM Modules
- DVD Players
- Graphic Cards
- Hard Disk Drives
- Health Meters
- Industrial Controls
- Internet Phone Handsets
- Memory Modules
- Notebook PC
- Personal Computers
- Printers
- Set Top Box
- Smart Phones
- TV
- Telecommunications
- Two Way Radios
- Video Games
- Video Tape Recorder
- Vending Machines
- Wireless LANs
Q & A
- What is the memory size of the CAT24C256YI-G?
The CAT24C256YI-G has a memory size of 256 Kb, organized as 32,768 words of 8 bits each.
- What I2C protocols does the CAT24C256YI-G support?
The device supports Standard (100 kHz), Fast (400 kHz), and Fast-Plus (1 MHz) I2C protocols.
- What is the supply voltage range for the CAT24C256YI-G?
The supply voltage range is from 1.8 V to 5.5 V.
- How many program/erase cycles can the CAT24C256YI-G endure?
The device can endure up to 1,000,000 program/erase cycles.
- What is the data retention period for the CAT24C256YI-G?
The data retention period is 100 years.
- What are the available package types for the CAT24C256YI-G?
The device is available in SOIC-8, TSSOP-8, and UDFN-8 packages.
- Is the CAT24C256YI-G RoHS compliant?
- How does the hardware write protection work on the CAT24C256YI-G?
The hardware write protection is enabled by pulling the WP pin high, which inhibits all write operations to the entire memory.
- What is the purpose of the on-chip ECC in the CAT24C256YI-G?
The on-chip ECC (Error Correction Code) enhances the device's suitability for high reliability applications.
- Can multiple CAT24C256YI-G devices be addressed on the same bus?
- What is the operating temperature range for the CAT24C256YI-G?
The operating temperature range is from -40°C to 85°C.
