S-25C080A0I-I8T1U

Memory IC Overview

The S-25C080A0I-I8T1U is an SPI serial EEPROM with a capacity of 8 K-bit organized as 1024 words by 8 bits. It operates within a voltage range of 1.6 V to 5.5 V for reading and 1.7 V to 5.5 V for writing, supporting clock frequencies up to 5.0 MHz at higher voltages. The device features page write capabilities of 32 bytes per page and includes hardware and software write protection mechanisms. It utilizes an 8-pin TSSOP package and functions across an ambient temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports SPI mode (0,0) and (1,1) with sequential read and 32-byte page write operations.
• Provides flexible write protection through software block settings or hardware pin control.
• Includes low power supply voltage detection circuit to prevent data corruption during power fluctuations.
• Features CMOS Schmitt inputs on all control pins to ensure signal integrity.

Memory IC Applications

• Consumer electronics memory storage
• Office equipment configuration data retention
• Communications devices parameter logging

Memory IC Procurement Notes

Verify the specific ordering suffix matches the required package type, as the S-25C080A series supports multiple packages including SOP, TSSOP, TMSOP, and SNT-8A. Confirm environmental compliance requirements such as halogen-free status if necessary. Ensure design accounts for the absence of internal pull-up or pull-down resistors on input pins to prevent floating states.

Memory IC Selection Notes

Select this component when an 8 K-bit non-volatile memory solution with SPI interface is required. Consider the 32-byte page write size for efficiency in data updates. Evaluate the need for hardware versus software write protection based on system security requirements. Verify that the operating voltage and temperature ranges align with the target application environment.

Memory IC Part Context

This part belongs to the S-25C080A series of SPI serial EEPROMs manufactured by ABLIC Inc. The series is designed for general electronic devices requiring high-speed operation and low current consumption. The 'I' designation typically indicates industrial temperature range, while 'T8T1U' specifies the TSSOP-8 package and environmental coding.

Memory IC Replacement Considerations

Direct substitutes are not explicitly listed in the provided documentation. When replacing, ensure compatibility with SPI protocol modes and voltage levels. Verify that the replacement device supports similar page write sizes and protection features to maintain system functionality without redesign.

Memory IC FAQ

How does the hardware write protect function operate?

Hardware write protect is activated by setting the SRWD bit in the status register to '1' and pulling the WP pin to 'L'. This combination locks the status register and the selected memory blocks against write operations.

What happens to the Write Enable Latch (WEL) bit during a power drop?

The built-in voltage detector automatically resets the WEL bit and enters write protect status if the power supply voltage drops below approximately 1.20 V, preventing unintended writes.

Can the address counter roll over during page write operations?

Yes, during a page write, the five lower bits of the address automatically increment. If the write exceeds the page boundary, the address rolls over to the start of the same page, overwriting previous data.