23LC512T-E/ST

Memory IC Overview

The Microchip Technology 23LC512T-E/ST 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 an extended temperature range of -40°C to +125°C. The device utilizes low-power CMOS technology with unlimited read/write cycles and zero write time. It offers a maximum clock frequency of 16 MHz in the Extended temperature grade and is housed in an 8-lead TSSOP 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 for high endurance
• Includes Hold functionality to suspend serial communication without resetting the sequence
• Operates on low-power CMOS technology suitable for battery-powered applications

Memory IC Applications

• Data logging systems requiring non-volatile-like temporary storage
• Microcontroller-based embedded systems needing fast random access memory
• Industrial control units operating in extended temperature environments
• Communication devices utilizing high-speed serial data transfer protocols

Memory IC Procurement Notes

Verify that the ordering suffix 'E' corresponds to the Extended temperature range (-40°C to +125°C) rather than the Industrial range. Confirm the 'T' suffix indicates tape and reel packaging if required for automated assembly. Ensure the 'ST' suffix matches the 8-lead TSSOP package specification. Cross-reference the datasheet revision DS20005155C for any recent updates to electrical characteristics or pin configurations before finalizing procurement.

Memory IC Selection Notes

Select this component when an application requires volatile memory with high-speed serial access and extended temperature tolerance. The 23LC512T-E/ST is appropriate for designs needing 512Kb capacity with a 2.5V to 5.5V supply range. Consider the 16 MHz maximum clock speed limit for the Extended grade when designing timing-critical interfaces. Compare against the Industrial grade variant if the operating environment does not exceed +85°C.

Memory IC Part Context

This part belongs to the 23A512/23LC512 family of 512-Kbit Serial SRAMs manufactured by Microchip Technology. The family differentiates between Industrial (23A512) and Extended (23LC512) temperature grades. The 23LC512 series is designed for applications requiring robust performance across wider thermal ranges compared to standard industrial components.

Memory IC Replacement Considerations

Direct replacements include other 23LC512 variants with compatible packages and temperatures, such as 23LC512-I/ST for industrial use. Verify interface compatibility (SPI/SDI/SQI) and voltage levels when substituting with similar SRAM devices from other manufacturers.

Memory IC FAQ

What is the maximum clock frequency for the 23LC512T-E/ST?

The maximum clock frequency for the Extended temperature grade (suffix E) is 16 MHz.

Does the 23LC512T-E/ST support dual or quad I/O modes?

Yes, the device supports Serial Dual Interface (SDI) and Serial Quad Interface (SQI) modes in addition to standard SPI mode.

How does the Hold function work in this device?

The Hold function allows suspension of serial communication by pulling the HOLD pin low while SCK is low, pausing data transfer without resetting the sequence.