23A512-I/P

Memory IC Overview

The Microchip Technology 23A512-I/P is a 512-Kbit Serial Static Random Access Memory (SRAM) device. It features an SPI-compatible bus interface supporting standard, Dual I/O (SDI), and Quad I/O (SQI) modes with a maximum clock frequency of 20 MHz. The memory organization is 64K x 8-bit, utilizing a 32-byte page structure. The device operates within a supply voltage range of 1.7V to 2.2V and supports Industrial temperature grades from -40°C to +85°C. It offers unlimited read/write cycles, zero write time, and low standby current consumption.

Memory IC Feature Summary

• Supports SPI, SDI, and SQI interface modes for flexible data transfer speeds
• Provides unlimited read and write cycles with zero write time latency
• Includes a Hold function to suspend serial communication without resetting the sequence
• Operates on low-power CMOS technology with minimal standby current

Memory IC Applications

• Microcontroller system data storage
• Embedded applications requiring non-volatile-like temporary storage
• Industrial control systems operating in wide temperature ranges

Memory IC Procurement Notes

Verify that the specific part number corresponds to the 23A512 variant, which requires a supply voltage between 1.7V and 2.2V. Ensure the industrial temperature grade (-40°C to +85°C) matches the operational environment requirements. Confirm the package type is 8-Lead PDIP as indicated by the suffix. Cross-reference the datasheet revision to ensure compatibility with existing design specifications.

Memory IC Selection Notes

Select this component when a low-voltage SRAM solution is required for SPI-based microcontrollers. The 23A512 is suitable for designs needing high-speed data access via SDI or SQI modes. Compare against the 23LC512 if a higher voltage range (2.5V-5.5V) is necessary instead of the 23A512's lower voltage specification. Consider the PDIP package for through-hole mounting needs.

Memory IC Part Context

The 23A512 belongs to the 23x512 family of Serial SRAM devices manufactured by Microchip Technology. This family includes variants like the 23LC512, which shares similar functional characteristics but operates at different voltage levels. These devices are designed to interface directly with popular microcontroller families, providing a simple serial interface for efficient memory expansion in embedded systems.

Memory IC Replacement Considerations

The 23LC512 is a direct functional substitute within the same family, differing primarily in its supported voltage range of 2.5V to 5.5V compared to the 23A512's 1.7V to 2.2V range. Ensure the host system's power supply aligns with the replacement part's voltage specifications before swapping.