EmbeddedRelated.com
The 2026 Embedded Online Conference
    Parts    23LC512-I/SN
23LC512-I/SN

MCHP23LC512-I/SN

Microchip Technology
512-kbit member of the same SPI SRAM family for lower-capacity, similar interface and performance.
Active738 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The 23LC512-I/SN is a 512-Kbit Serial SRAM device that offers high-speed volatile memory expansion via a flexible SPI interface. It supports Standard, Dual, and Quad I/O modes, allowing for data rates that suit both low-power and high-performance requirements. This component is particularly useful for applications requiring frequent data updates and zero write cycle latency.

Why Choose This Part

This device features unlimited read and write cycles with zero write time, making it superior to EEPROM or Flash for high-frequency updates. It operates across a wide voltage range of 2.5V to 5.5V and consumes only 10uA in standby, making it suitable for battery-powered designs.

Applications

Data Buffering
Acts as a scratchpad for high-speed data stream buffering in applications like audio processing or communication protocol stacks.
Frame Buffering
Provides volatile storage for small display frame buffers where rapid read/write access is necessary.
Sensor Data Logging
Temporary storage for high-frequency sensor measurements before batch processing or transmission to non-volatile memory.
Cache Expansion
Extends the available RAM for microcontrollers with limited internal memory without the pin-count overhead of parallel SRAM.

Key Specifications

Technology SRAM
Memory Size 512Kbit
Memory Type Volatile
Memory Format SRAM
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Clock Frequency 20 MHz
Memory Interface SPI - Quad I/O
Voltage - Supply 2.5V ~ 5.5V
Memory Organization 64K x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-SOIC

Getting Started

To interface with this device, configure your microcontroller's SPI peripheral for Mode 0,0 or 1,1 at a clock frequency up to 20 MHz. Implement the standard SPI instructions for Byte Read, Byte Write, and Page operations as defined in the Microchip datasheet. For maximum throughput, utilize the SQI (Quad SPI) mode which transfers 4 bits per clock cycle.

Also Consider

23LC1024-I/SN MCHPMicrochip Technology - Offers double the capacity (1-Mbit) in the same 8-SOIC package for designs requiring more memory.
The 2026 Embedded Online Conference