23LC512T-E/SN

Memory IC Overview

The Microchip Technology 23LC512T-E/SN is a 512-Kbit Serial SRAM device featuring SPI, SDI, and SQI interfaces. It operates within a voltage range of 2.5V to 5.5V and supports clock frequencies up to 20 MHz (16 MHz for Extended temperature). The memory is organized as 64K x 8 bits with a 32-byte page structure. It functions in an ambient temperature range of -40°C to +125°C and utilizes an 8-lead SOIC package.

Memory IC Feature Summary

• Supports SPI, Serial Dual Interface (SDI), and Serial Quad Interface (SQI) modes for flexible data transfer rates.
• Provides unlimited read and write cycles with zero write time, eliminating the need for erase operations.
• Includes a Hold function to suspend serial communication without resetting the sequence.
• Operates across industrial and extended temperature ranges with low standby current consumption.

Memory IC Applications

• Data logging systems requiring frequent updates
• Real-time buffer storage in microcontroller applications
• Configuration parameter storage in embedded devices

Memory IC Procurement Notes

Verify that the ordering suffix 'E' corresponds to the Extended temperature range (-40°C to +125°C) and 'SN' indicates the 8-lead SOIC package. Confirm the 'T' suffix denotes tape and reel packaging if required by assembly equipment. Ensure compatibility with the host system's voltage levels and SPI mode requirements before procurement.

Memory IC Selection Notes

Select this component when non-volatile retention is not required but high-speed random access and unlimited endurance are necessary. Compare against EEPROM alternatives like the 25LC512 if data retention during power loss is critical. Consider the 23A512 variant if a lower voltage range (1.7V-2.2V) is needed instead of the 2.5V-5.5V range provided here.

Memory IC Part Context

This part belongs to the 23LC512 family of Serial SRAMs from Microchip Technology. It shares architectural similarities with the 23A512 but differs in supply voltage specifications. The device is designed to interface directly with SPI ports of popular microcontrollers, offering a drop-in replacement for parallel SRAMs in space-constrained designs.

Memory IC Replacement Considerations

Public confirmed substitute part numbers include 23LC512-I/SN for Industrial temperature grade or 23LC512T-I/SN for Industrial temperature grade in tape and reel. Verify pinout and electrical characteristics match before substitution.

Memory IC FAQ

Is the HOLD function available in SQI mode?

No, the HOLD functionality is not available when operating in Serial Quad Interface (SQI) mode due to shared pin functionality.

What is the maximum clock frequency for the Extended temperature version?

For the Extended temperature (E) version, the maximum clock frequency is 16 MHz. The Industrial (I) version supports up to 20 MHz.