23LC512-I/P

Memory IC Overview

The Microchip Technology 23LC512-I/P is a 512-Kbit (64K x 8-bit) Serial Static Random Access Memory device. It operates within a supply voltage range of 2.5V to 5.5V and supports an industrial temperature range from -40°C to +85°C. The device interfaces via a SPI-compatible bus with a maximum clock frequency of 20 MHz, while also supporting SDI and SQI modes for enhanced data throughput. Key electrical characteristics include a read current of up to 10 mA at 5.5V and a standby current of 4 µA.

Memory IC Feature Summary

• Supports SPI, SDI, and SQI interface modes for flexible system integration
• Provides unlimited read and write cycles without write time delays
• Includes Byte, Page, and Sequential operation modes for efficient data handling
• Features a Hold function to suspend serial communication sequences

Memory IC Applications

• Data logging in microcontroller-based systems
• Non-volatile configuration storage emulation
• Buffer memory for high-speed data acquisition
• Embedded system parameter storage

Memory IC Procurement Notes

Verify the specific suffix 'I' confirms the Industrial temperature grade (-40°C to +85°C). Confirm the package type 'P' corresponds to the 8-Lead Plastic Dual In-Line (PDIP) format. Ensure the voltage range matches the application requirements, as this variant supports 2.5V to 5.5V. Cross-reference the datasheet revision DS20005155C for accurate pinout and timing specifications.

Memory IC Selection Notes

Select this component when non-volatile retention is not required but high endurance and speed are necessary. It serves as a drop-in replacement for parallel SRAM in space-constrained designs using serial interfaces. Consider the PDIP package for through-hole prototyping or legacy board layouts. Evaluate power consumption needs against the specified standby and active currents.

Memory IC Part Context

This part belongs to the 23LC512 family of Serial SRAM devices manufactured by Microchip Technology. It shares architectural similarities with the 23A512, differing primarily in the supported supply voltage range. The family is designed to interface directly with popular microcontroller families, including PIC microcontrollers, offering a simple serial interface solution for memory expansion.

Memory IC Replacement Considerations

The 23A512 is a functional substitute with a lower voltage range (1.7V-2.2V). Other capacity variants in the series include the 23LC256 and 23LC1025.