25C160T-I/SN

Memory IC Overview

The Microchip Technology 25C160T-I/SN is a 16 Kbit (2048 x 8-bit) Serial Electrically Erasable PROM. It operates within a voltage range of 4.5V to 5.5V and supports a maximum clock frequency of 3 MHz via an SPI-compatible serial bus. The device features a write cycle time of 5 ms, data retention exceeding 200 years, and endurance of 1 million erase/write cycles. It is housed in an 8-lead SOIC package and supports the Industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports block write protection for none, 1/4, 1/2, or all of the memory array
• Includes built-in power on/off data protection circuitry and a write enable latch
• Features a dedicated hardware write-protect pin controlled by a status register bit
• Allows communication pausing via a hold pin without resetting the serial sequence

Memory IC Applications

• Microcontroller system data storage
• Configuration parameter storage
• Calibration data retention
• Device identification information storage

Memory IC Procurement Notes

Verify that the specific part number matches the required voltage range and temperature grade. Confirm the 'T' suffix indicates tape and reel packaging if automated assembly is intended. Ensure the 'I' suffix aligns with industrial operating conditions. Cross-reference the datasheet revision to confirm compatibility with current design specifications.

Memory IC Selection Notes

Select this component when a 5V supply is available and extended automotive temperature ranges are not required. Compare against the 25LC160 series for lower voltage operation needs. Consider the 25AA160 series for wider voltage flexibility. Verify that the 3 MHz clock speed meets the system's SPI bus timing requirements.

Memory IC Part Context

This device belongs to the 25XX160 family of 16 Kbit Serial EEPROMs from Microchip Technology. It shares architectural similarities with the 25AA160 and 25LC160 models but is specifically optimized for 5V operation. The family utilizes a standard SPI interface for efficient data transfer and management.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: 25C160-I/SN

Memory IC FAQ

How does the HOLD pin function during serial communication?

The HOLD pin suspends transmission mid-sequence without resetting the serial pointer. Inputs are ignored while held low, allowing the host to service higher priority interrupts.

What is the purpose of the Write Enable Latch?

The Write Enable Latch must be set before any write operation can be completed. It prevents inadvertent writes to the memory array and is reset upon power-up or after a successful write cycle.