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CAT25512VI-GT3

ONCAT25512VI-GT3

onsemi
EEPROM Memory IC 512Kbit SPI 20 MHz 8-SOIC
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Overview

The CAT25512VI-GT3 is a 512Kbit CMOS Serial EEPROM device internally organized as 64K x 8 bits. It communicates via the Serial Peripheral Interface (SPI) protocol and supports high-speed clock frequencies up to 20 MHz. This non-volatile memory features an internal Error Correction Code (ECC) to enhance reliability and a 128-byte page write buffer for efficient data logging.

Why Choose This Part

This EEPROM offers a wide supply voltage range from 1.8V to 5.5V, making it compatible with both low-power battery systems and standard 5V logic. It features integrated Hardware and Software protection, including Block Write Protection, alongside a very low standby current of just 1 microamp.

Applications

Configuration Storage
Storing calibration data and user settings in industrial instruments that require high endurance and 100-year data retention.
Firmware Backup
Acting as a secondary storage for bootloaders or critical system parameters that must persist through power cycles.
Event Logging
Recording system logs and sensor telemetry using the 128-byte page write buffer and 1,000,000 program/erase cycle endurance.
Identification Page
Utilizing the dedicated identification page with permanent write protection for storing serial numbers or security keys.

Key Specifications

Technology EEPROM
Memory Size 512Kbit
Memory Type Non-Volatile
Memory Format EEPROM
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Clock Frequency 20 MHz
Memory Interface SPI
Voltage - Supply 1.8V ~ 5.5V
Memory Organization 64K x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-SOIC
Write Cycle Time - Word, Page 5ms

Getting Started

To integrate this device, connect the SPI lines (SI, SO, SCK, CS) to your microcontroller and ensure the WP and HOLD pins are tied to VDD if not used. Development can be performed using any standard SPI library, adhering to the 20 MHz maximum clock frequency at higher voltages (10 MHz at 2.5V-5.5V).

Also Consider

25LC512-I/SN MCHPMicrochip Technology - A widely available 512Kbit SPI EEPROM with similar 20 MHz performance and SOIC-8 packaging.