Overview
The CAT25256LI-G is a Serial 256-Kb SPI EEPROM device produced by onsemi. It is internally organized as 32K x 8 bits and features a 64-byte page write buffer. The device supports the Serial Peripheral Interface (SPI) protocol and is enabled through a Chip Select (CS) input. It includes necessary bus signals such as clock input (SCK), data input (SI), and data output (SO) lines. Additionally, a HOLD input can be used to pause any serial communication with the device.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Memory Size | 256 Kbit | 32K x 8 bits |
| Memory Interface Type | Serial SPI | |
| Clock Frequency | Up to 20 MHz (at 5 V) | |
| Supply Voltage Range | 1.8 V to 5.5 V | |
| Package Type | 8-Pin PDIP, 8-lead SOIC, TSSOP, and 8-pad UDFN | |
| Program/Erase Cycles | 1,000,000 cycles | |
| Data Retention | 100 years | |
| Operating Temperature Range | −40°C to +85°C (Industrial), −40°C to +125°C (Extended) | |
| Write Protection | Hardware and Software Protection, Block Write Protection | |
| ESD Performance | 2 kV Human Body Model, 1 kV Charged Device Model | |
| Compliance | Pb-Free, Halogen Free/BFR Free, and RoHS Compliant |
Key Features
- 64-byte page write buffer
- Supports SPI Modes (0,0) and (1,1)
- Self-timed Write Cycle
- On-Chip ECC (Error Correction Code) for high reliability applications
- Additional Identification Page with Permanent Write Protection
- Low Power CMOS Technology
- Block Write Protection to protect 1/4, 1/2 or entire EEPROM array
- HOLD input to pause serial communication
Applications
- Automotive Systems
- Communications Systems
- Computer Systems
- Consumer Systems
- Industrial Systems
Q & A
- What is the memory organization of the CAT25256LI-G?
The CAT25256LI-G is internally organized as 32K x 8 bits.
- What is the clock frequency range of the CAT25256LI-G?
The clock frequency range is up to 20 MHz at 5 V.
- What is the supply voltage range for the CAT25256LI-G?
The supply voltage range is from 1.8 V to 5.5 V.
- What types of packages are available for the CAT25256LI-G?
The device is available in 8-Pin PDIP, 8-lead SOIC, TSSOP, and 8-pad UDFN packages.
- How many program/erase cycles does the CAT25256LI-G support?
The device supports 1,000,000 program/erase cycles.
- What is the data retention period of the CAT25256LI-G?
The data retention period is 100 years.
- What are the operating temperature ranges for the CAT25256LI-G?
The operating temperature ranges are −40°C to +85°C (Industrial) and −40°C to +125°C (Extended).
- Does the CAT25256LI-G have any write protection features?
Yes, it features hardware and software write protection, including block write protection.
- Is the CAT25256LI-G compliant with RoHS and other environmental standards?
Yes, the device is Pb-Free, Halogen Free/BFR Free, and RoHS Compliant.
- What is the purpose of the HOLD input in the CAT25256LI-G?
The HOLD input can be used to pause any serial communication with the device.
