Overview
The CAT24C256LI-G is a 256 Kb Serial CMOS EEPROM produced by onsemi. It is internally organized as 32,768 words of 8 bits each, providing a robust and reliable storage solution. This device supports the Standard (100 kHz), Fast (400 kHz), and Fast-Plus (1 MHz) I2C protocol, making it versatile for various applications. The CAT24C256LI-G features a 64-byte page write buffer and includes hardware write protection, ensuring data integrity and security. It is suitable for high reliability applications due to its on-chip Error Correction Code (ECC).
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Memory Size | Internally organized as 32,768 words of 8 bits each | 256 Kb |
| Supply Voltage Range | VCC range | 1.8 V to 5.5 V |
| I2C Protocol | Supported protocols | Standard (100 kHz), Fast (400 kHz), Fast-Plus (1 MHz) |
| Page Write Buffer | Size of the page write buffer | 64 bytes |
| Write Protection | Method of write protection | Hardware write protection via WP pin |
| Address Pins | Number of address pins and their function | A0, A1, A2 (allow up to 8 devices on the same bus) |
| Error Correction Code | Presence of ECC | On-chip ECC for high reliability applications |
| Temperature Range | Operating temperature range | −40°C to +85°C (Industrial) |
| Package Types | Available package types | SOIC-8, TSSOP-8, UDFN-8 |
| Lead Finish | Lead finish material | NiPdAu |
Key Features
- Supports Standard, Fast, and Fast-Plus I2C protocol
- 1.8 V to 5.5 V supply voltage range
- 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 Error Correction Code (ECC) for high reliability applications
- External address pins allowing up to eight devices on the same bus
- Power-On Reset (POR) to protect against brown-out failure
Applications
The CAT24C256LI-G is suitable for a variety of applications that require reliable and efficient non-volatile memory. These include:
- Industrial control systems
- Automotive systems
- Consumer electronics
- Medical devices
- Telecommunication equipment
- Any system requiring high reliability and low power consumption
Q & A
- What is the memory size of the CAT24C256LI-G?
The CAT24C256LI-G has a memory size of 256 Kb, internally organized as 32,768 words of 8 bits each.
- What I2C protocols does the CAT24C256LI-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 CAT24C256LI-G?
The supply voltage range is from 1.8 V to 5.5 V.
- How does the hardware write protection work?
Write operations can be inhibited by taking the WP pin High, protecting the entire memory.
- What is the function of the address pins A0, A1, and A2?
The address pins allow up to eight CAT24C256 devices to be addressed on the same bus.
- Does the CAT24C256LI-G have any error correction capabilities?
Yes, it includes on-chip Error Correction Code (ECC) for high reliability applications.
- What are the available package types for the CAT24C256LI-G?
The device is available in SOIC-8, TSSOP-8, and UDFN-8 packages.
- What is the operating temperature range for the CAT24C256LI-G?
The operating temperature range is from −40°C to +85°C for industrial applications.
- How does the Power-On Reset (POR) function work?
The device powers up into Standby mode after VCC exceeds the POR trigger level and powers down into Reset mode when VCC drops below the POR trigger level, protecting against brown-out failure.
- Is the CAT24C256LI-G RoHS-compliant?
Yes, the device is RoHS-compliant (Lead-free, Halogen-free).
