25LC128T-I/MF

Overview

The Microchip Technology 25LC128T-I/MF is a 128 Kbit Serial Electrically Erasable PROM accessed via an SPI-compatible serial bus. It features a 16,384 x 8-bit organization with a 64-byte page size. The device operates within a supply voltage range of 2.5V to 5.5V and supports a maximum clock frequency of 10 MHz at higher voltages. It includes self-timed erase and write cycles with a maximum duration of 5 ms. The component is housed in an 8-lead DFN package and is rated for industrial temperature operation from -40°C to +85°C.

Feature Summary

• Supports block write protection allowing selection of none, one, two, or all array segments.
• Includes built-in power-on/off data protection circuitry and a write enable latch.
• Features a hold pin to suspend transmission without resetting the serial sequence.

Applications

• Data storage in microcontroller systems requiring non-volatile memory
• Industrial control applications operating within specified temperature ranges
• Embedded systems utilizing SPI communication interfaces

Procurement Notes

Verify the specific suffix 'MF' corresponds to the 8-lead DFN package configuration as documented in the manufacturer's datasheet. Confirm that the 'I' designation aligns with the required industrial temperature range specifications for your application environment. Ensure compatibility with the 2.5V to 5.5V supply voltage requirements before integration.

Selection Notes

Select this component when a 128 Kbit capacity with SPI interface is required for industrial environments. The 8-lead DFN package offers a compact surface-mount solution suitable for space-constrained designs. Consider the 64-byte page write capability for efficient data management. Verify that the system voltage remains within the 2.5V to 5.5V operational limits to ensure reliable performance.

Part Context

This part belongs to the 25LC128 series of 128 Kbit SPI Serial EEPROMs manufactured by Microchip Technology. The series provides non-volatile memory solutions with high reliability and low power consumption. The 'I' suffix indicates industrial temperature grading, while 'MF' specifies the 8-lead DFN package type. These devices are designed for direct interfacing with popular microcontroller families.

Replacement Considerations

The 25AA128T-I/MF serves as a functional substitute within the same family, offering identical memory architecture and interface protocols. Both parts share similar electrical characteristics and packaging options, facilitating direct replacement in designs where voltage range differences do not impact system operation.