23A512-E/P

Memory IC Overview

The Microchip Technology 23A512-E/P is a 512-Kbit Serial SRAM device featuring SPI, SDI, and SQI interfaces. It operates within a supply voltage range of 1.7V to 2.2V and supports an industrial temperature range of -40°C to +85°C. The memory is organized as 64K x 8 bits with a 32-byte page structure. Maximum clock frequency is 20 MHz in Industrial mode. Key electrical characteristics include a read current of 3 mA at 5.5V (typical for the family) and standby current of 4 µA at +85°C.

Memory IC Feature Summary

• Supports SPI, Serial Dual Interface (SDI), and Serial Quad Interface (SQI) modes for flexible data throughput.
• Provides unlimited read and write cycles with zero write time.
• Includes a Hold function to suspend serial communication without resetting the sequence.
• Operates on low-power CMOS technology.

Memory IC Applications

• Data logging systems requiring non-volatile-like retention during power loss.
• Embedded microcontroller applications needing fast random access memory.
• Industrial control systems operating within extended temperature ranges.
• Battery-powered devices utilizing low standby current modes.

Memory IC Procurement Notes

Verify the specific ordering suffix 'P' corresponds to the 8-Lead Plastic Dual In-Line package. Confirm the 'E' suffix indicates Extended Temperature rating (-40°C to +125°C) if required, noting that datasheet tables list Industrial (I) and Extended (E) options for the 23A512 series. Ensure voltage requirements match the 1.7V-2.2V specification for the 23A512 variant.

Memory IC Selection Notes

Select this component when a 512-Kbit capacity is needed with SPI compatibility. Choose the 23A512 over the 23LC512 if the system operates within the lower 1.7V-2.2V voltage range. Consider the PDIP package only if through-hole mounting is necessary; otherwise, SOIC or TSSOP packages are available for surface mount applications.

Memory IC Part Context

The 23A512 is part of the 23A512/23LC512 family of 512-Kbit Serial SRAMs from Microchip Technology. It shares functional similarities with the 23LC512 but differs in supply voltage specifications. The device is designed to interface directly with popular microcontroller families, including PIC microcontrollers, via a simple serial bus.

Memory IC Replacement Considerations

The 23LC512 is a compatible alternative within the same family, offering identical functionality but supporting a wider voltage range of 2.5V to 5.5V. Verify voltage compatibility before substitution. Other 512-Kbit SPI SRAMs from different manufacturers may require pinout and command set verification.