25LC080DT-I/MNY

Overview

The Microchip Technology 25LC080DT-I/MNY is an 8 Kbit (1024 x 8) Serial Electrically Erasable PROM utilizing a SPI-compatible interface. It operates within a voltage range of 2.5 V to 5.5 V and supports a maximum clock frequency of 10 MHz. The device features a 32-byte page write buffer, self-timed erase/write cycles with a maximum duration of 5 ms, and industrial temperature ratings from -40°C to +85°C. Packaged in an 8-lead TDFN format, it offers high reliability with over 1 million erase/write cycle endurance and data retention exceeding 200 years.

Feature Summary

• Supports serial communication via a standard four-wire SPI bus with separate data input and output lines.
• Includes programmable block write protection allowing selective array security for none, one-quarter, one-half, or all memory segments.
• Features hardware-based power-on/off data protection circuitry combined with a write enable latch mechanism.

Applications

• Microcontroller system data storage
• Configuration parameter retention
• Calibration value logging

Procurement Notes

Verify the specific suffix 'DT' indicates tape and reel packaging and 'I' confirms the industrial temperature grade. Confirm the 'MN' designation corresponds to the 8-lead TDFN package variant. Ensure compatibility with the required voltage supply levels and SPI timing constraints before integration into the design.

Selection Notes

Select this component when a compact surface-mount EEPROM is required for low-power applications. The 32-byte page size optimizes write throughput compared to smaller page sizes. Verify that the host microcontroller supports the necessary SPI modes and voltage levels compatible with the 2.5 V to 5.5 V operating range.

Part Context

This part belongs to the 25XX080C/D family of 8 Kbit Serial EEPROMs. The 'LC' designation specifies the 2.5 V minimum operating voltage, distinguishing it from the 'AA' series which supports lower voltages. The 'D' suffix indicates the 32-byte page size architecture, whereas the 'C' version utilizes a 16-byte page structure.

Replacement Considerations

25LC080C-DT-I/MNY

FAQ

How does the HOLD pin function during operation?

The HOLD pin allows the user to pause serial communication without resetting the sequence. When pulled low while SCK is low, the SO pin goes high-impedance and input transitions are ignored until HOLD is released.

What is the purpose of the WPEN bit in the STATUS register?

The WPEN bit enables or disables the hardware write-protect functionality of the WP pin. When WPEN is high, the WP pin can lock the STATUS register; when low, the WP pin function is blocked.