25LC080DT-H/SN

Overview

The Microchip Technology 25LC080DT-H/SN is an 8K-bit (1,024 x 8) Serial Electrically Erasable PROM (EEPROM) utilizing a SPI-compatible interface. It operates within a supply voltage range of 2.5V to 5.5V and supports a maximum clock frequency of 5 MHz at voltages between 4.5V and 5.5V, or 3 MHz at lower voltages. The device features a page size of 32 bytes and includes block write protection capabilities. It is housed in an 8-lead SOIC package and is qualified for extended temperature operation from -40°C to +150°C.

Feature Summary

• Supports serial communication via a four-wire SPI compatible bus architecture with separate data input and output lines.
• Includes hardware write protection controlled by the WP pin and STATUS register bits to prevent inadvertent array modifications.
• Features built-in power-on/off data protection circuitry and a write enable latch to secure data integrity during operations.
• Provides sequential read functionality with automatic address pointer incrementation across the memory array.

Applications

• Industrial control systems requiring non-volatile data storage under high thermal stress
• Automotive electronic modules operating within extended temperature ranges
• Embedded microcontroller applications needing persistent configuration parameter retention

Procurement Notes

Verify that the specific ordering suffix corresponds to the required temperature grade and package type. Confirm the device revision matches the intended application requirements. Ensure compatibility with the system's SPI protocol timing constraints. Check for any specific automotive qualification certifications if used in vehicle electronics. Validate the supply voltage levels against the operational specifications.

Selection Notes

Select this component when an 8K-bit capacity is sufficient for the application's data storage needs. Choose this part for designs requiring operation up to +150°C ambient temperature. Consider this device for systems utilizing standard SPI interfaces without complex addressing schemes. Evaluate the 32-byte page write capability against the required update frequency. Ensure the 5 MHz maximum clock speed meets the system's communication bandwidth requirements.

Part Context

This device belongs to the 25LCXXX family of mid-density serial EEPROMs manufactured by Microchip Technology. The family shares common architectural features including SPI compatibility and similar instruction sets. Variations within the family typically involve differences in memory density, such as 16K-bit or 32K-bit options, while maintaining identical pinouts and functional behaviors.

Replacement Considerations

25LC080D-E/SN

FAQ

How does the HOLD pin function during serial communication?

The HOLD pin allows the user to suspend transmission to the device mid-sequence without resetting the serial sequence. When pulled low while SCK is low, it pauses communication and places SI, SCK, and SO pins in a high-impedance state until pulled high again.

What is the internal write cycle time for this device?

The internal write cycle time is a maximum of 6 ms. This cycle begins on the rising edge of CS after a valid write sequence and ends when the internal write cycle is complete.