Overview
The CAT24C256YI-GT3 is a 256-kbit Serial CMOS EEPROM produced by onsemi. This device is part of the CAT24C256 series and is internally organized as 32,768 bytes of 8 bits each, or 512 pages of 64 bytes each. It operates on the I2C interface protocol, supporting Standard (100 kHz), Fast (400 kHz), and Fast-Plus (1 MHz) modes. The device is designed for low power consumption and high reliability, making it suitable for a wide range of applications.
Key Specifications
| Attribute | Value |
|---|---|
| Memory Density | 256 kb |
| Memory Organization | 32 K x 8 |
| Supply Voltage | 1.8 V to 5.5 V |
| Clock Frequency (Max) | 400 kHz (Fast), 1 MHz (Fast-Plus) |
| Write Cycle Time (Max) | 5 ms |
| Package Style | TSSOP-8 |
| Mounting Method | Surface Mount |
| Endurance | 1,000,000 Program/Erase Cycles |
| Data Retention | 100 Years |
| Operating Temperature Range | -40°C to +125°C |
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
- Pb-free, Halogen-free/BFR-free, and RoHS compliant
- Industrial and extended temperature range support
Applications
The CAT24C256YI-GT3 is suitable for various applications requiring non-volatile memory, such as:
- Industrial control systems
- Automotive systems
- Consumer electronics
- Medical devices
- High reliability systems where data integrity is crucial
Q & A
- What is the memory density of the CAT24C256YI-GT3?
The memory density is 256 kb, organized as 32 K x 8 bits.
- What are the supported I2C protocol modes?
The device supports Standard (100 kHz), Fast (400 kHz), and Fast-Plus (1 MHz) I2C protocol modes.
- What is the supply voltage range for the CAT24C256YI-GT3?
The supply voltage range is from 1.8 V to 5.5 V.
- How many program/erase cycles does the device support?
The device supports up to 1,000,000 program/erase cycles.
- What is the data retention period for the CAT24C256YI-GT3?
The data retention period is 100 years.
- How does the hardware write protection work?
The entire memory is protected against write operations when the WP pin is held HIGH.
- What types of packages are available for the CAT24C256YI-GT3?
The device is available in SOIC, TSSOP, and UDFN 8-pad packages.
- Is the CAT24C256YI-GT3 RoHS compliant?
Yes, the device is Pb-free, Halogen-free/BFR-free, and RoHS compliant.
- What is the maximum clock frequency for the Fast-Plus mode?
The maximum clock frequency for the Fast-Plus mode is 1 MHz.
- How many devices can be connected to the same I2C bus?
Up to eight CAT24C256 devices can be connected to the same bus using the device address inputs A0, A1, and A2.
