25LC160A-I/P

Overview

The Microchip Technology 25LC160A-I/P is a 16 Kbit Serial Electrically Erasable PROM featuring a 2048 x 8-bit organization. It utilizes an SPI-compatible serial bus with a maximum clock frequency of 10 MHz. The device operates within a supply voltage range of 2.5 V to 5.5 V and supports industrial temperature ranges from -40°C to +85°C. It is housed in an 8-lead PDIP package.

Feature Summary

• Supports self-timed erase and write cycles with a maximum duration of 5 ms.
• Includes built-in write protection mechanisms such as power-on/off data protection, a write enable latch, and a dedicated write-protect pin.
• Features block write protection allowing selection of none, one-quarter, one-half, or the entire array for protection.

Applications

• Microcontroller system memory storage
• Data logging applications
• Configuration parameter storage

Procurement Notes

Verify the specific suffix 'I' confirms the Industrial temperature range (-40°C to +85°C) and 'P' denotes the PDIP package. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure voltage requirements align with the 2.5 V to 5.5 V operational specification.

Selection Notes

Select this component for designs requiring non-volatile storage accessed via standard SPI interfaces. The 16-byte page size distinguishes it from the 32-byte variant. Verify that the host microcontroller supports the required SPI modes and voltage levels compatible with the 2.5 V to 5.5 V operating range.

Part Context

This part belongs to the 25XX160A/B family of 16 Kbit Serial EEPROMs. The 'LC' designation indicates a 2.5 V minimum operating voltage, while the 'A' suffix specifies a 16-byte page size compared to the 32-byte pages of the 'B' version devices within the same product line.

Replacement Considerations

Public confirmed substitute: 25LC160C-E/MS

FAQ

How does the HOLD pin function during communication?

The HOLD pin allows suspension of serial communication without resetting the sequence. Transitions on SI, SCK, and SO are ignored while held low, and operation resumes when the pin is brought high while SCK is low.

What happens if a page write crosses a physical boundary?

If a page write attempts to cross a physical page boundary, the data wraps around to the beginning of the current page instead of writing to the next page.