Overview
The CAT24C256HU4IGT3 is a 256-Kb Serial CMOS EEPROM produced by onsemi. This device is internally organized as 32,768 words of 8 bits each and supports the I2C protocol. It features a 64-byte page write buffer and is designed for high reliability applications with on-chip Error Correction Code (ECC). The device operates within a supply voltage range of 1.8 V to 5.5 V and is available in various packages, including SOIC, TSSOP, and UDFN.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Memory Size | 256 Kb | |
| Memory Type | EEPROM | |
| Interface | I2C | |
| Max Frequency | 100 kHz (Standard), 400 kHz (Fast), 1 MHz (Fast-Plus) | kHz |
| Supply Voltage Range | 1.8 V to 5.5 V | V |
| Page Write Buffer | 64 bytes | |
| Endurance | 1,000,000 Program/Erase Cycles | Cycles |
| Data Retention | 100 Years | Years |
| Temperature Range | −40°C to +85°C (Industrial), −40°C to +125°C (Extended) | °C |
| Package Types | SOIC, TSSOP, UDFN |
Key Features
- Supports Standard, Fast, and Fast-Plus I2C protocol
- Hardware Write Protection for entire memory via WP pin
- Schmitt Triggers and Noise Suppression Filters on I2C bus inputs
- Low Power CMOS Technology
- On-chip ECC (Error Correction Code) for high reliability
- External address pins to address up to eight devices on the same bus
- Pb-free, Halogen-free/BFR-free, and RoHS compliant
Applications
The CAT24C256HU4IGT3 is suitable for a wide range of applications requiring non-volatile memory, including:
- Industrial control systems
- Automotive systems
- Consumer electronics
- Medical devices
- Any system requiring high reliability and endurance in non-volatile memory
Q & A
- What is the memory size of the CAT24C256HU4IGT3?
The memory size is 256 Kb, organized as 32,768 words of 8 bits each.
- What interface does the CAT24C256HU4IGT3 support?
The device supports the I2C protocol.
- What are the supply voltage and temperature ranges for the CAT24C256HU4IGT3?
The supply voltage range is 1.8 V to 5.5 V, and the temperature range is −40°C to +85°C (Industrial) and −40°C to +125°C (Extended).
- How many program/erase cycles can the CAT24C256HU4IGT3 endure?
The device can endure up to 1,000,000 program/erase cycles.
- What is the data retention period of the CAT24C256HU4IGT3?
The data retention period is 100 years.
- Does the CAT24C256HU4IGT3 have hardware write protection?
- What types of packages are available for the CAT24C256HU4IGT3?
The device is available in SOIC, TSSOP, and UDFN packages.
- Is the CAT24C256HU4IGT3 RoHS compliant?
- How many devices can be addressed on the same I2C bus?
- What is the purpose of the on-chip ECC in the CAT24C256HU4IGT3?
The on-chip ECC (Error Correction Code) is used to correct one bit error in 4 data bytes, enhancing the device's reliability.
