25LC080A-I/STG

Overview

The Microchip Technology 25LC080A-I/STG is an 8 Kbit (1024 x 8-bit) Serial Electrically Erasable PROM. It features a 16-byte page size and operates via a standard SPI-compatible serial bus with a maximum clock frequency of 10 MHz. The device supports a supply voltage range of 2.5 V to 5.5 V and is housed in an 8-lead TSSOP package. It provides industrial temperature coverage from -40 °C to +85 °C, ensuring reliable performance in demanding environments.

Feature Summary

• Supports high-speed synchronous serial communication through a standard four-wire SPI interface.
• Includes programmable block write protection to secure specific memory segments against unauthorized modification.
• Integrates hardware-based power-on/off data protection circuitry to prevent inadvertent writes during power transitions.
• Features a dedicated hold pin that allows the host processor to pause serial communication without resetting the current sequence.

Applications

• Configuration storage for microcontroller systems
• Calibration parameter persistence
• Non-volatile data logging

Procurement Notes

Verify the 'I' suffix confirms the Industrial temperature range (-40 °C to +85 °C). Confirm the 'ST' suffix corresponds to the 8-lead TSSOP package. Ensure the 'G' suffix aligns with the required environmental compliance specifications for your assembly process.

Selection Notes

Select this component when a low-pin-count non-volatile memory solution is required for small data sets. The 16-byte page architecture suits applications with infrequent or small-batch updates. Verify that the system's SPI controller supports the necessary clock speeds and instruction formats defined in the datasheet.

Part Context

This part belongs to the 25LC080A/B family of 8 Kbit EEPROMs. The 'A' designation indicates a 16-byte page size, distinguishing it from the 'B' variant which utilizes a 32-byte page. The 'LC' prefix specifies the 2.5 V to 5.5 V operating voltage range, differentiating it from the 'AA' series which supports lower voltages down to 1.8 V.

Replacement Considerations

The 25LC080A-I/ST is a direct functional equivalent within the same package and specification set. Cross-referencing with other 8 Kbit SPI EEPROMs requires verifying page size compatibility and voltage level alignment.