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23LC1024-I/SNVAO

MCHP23LC1024-I/SNVAO

Microchip Technology
SRAM - Synchronous, SDR Memory IC 1Mbit SPI - Quad I/O 20 MHz 8-SOIC
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Overview

The 23LC1024 is a 1Mbit Serial SRAM providing high-speed external volatile memory expansion via a SPI-compatible interface. It supports Single (SPI), Dual (SDI), and Quad (SQI) I/O modes with a 20 MHz clock rate, offering a cost-effective solution for systems needing more RAM than a typical microcontroller provides internally.

Why Choose This Part

This device features unlimited read and write cycles with zero write time, making it superior to EEPROM for frequent data updates. It operates over a wide voltage range of 2.5V to 5.5V and consumes only 4 uA in standby, making it suitable for battery-powered applications requiring low-power volatile storage.

Applications

Data Buffering
Acts as a temporary buffer for high-bandwidth data streams such as audio processing or sensor logging where internal MCU RAM is insufficient.
Display Scratchpad
Serves as external frame buffer memory for small LCD or OLED displays in embedded graphics applications.
Telemetry Storage
Provides volatile storage for rapidly changing telemetry data that requires unlimited read/write cycles without the endurance concerns of Flash or EEPROM.
Network Packet Processing
Used for packet buffering and look-up tables in industrial communication modules.

Key Specifications

Technology SRAM - Synchronous, SDR
Memory Size 1Mbit
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 128K x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-SOIC

Getting Started

Interface the 23LC1024 to an MCU using standard SPI, SDI, or SQI protocols by connecting the CS, SCK, and I/O pins. For rapid prototyping, use a standard 8-pin SOIC breakout board to connect it to a breadboard or dev kit, and utilize Microchip's provided C libraries for Serial SRAM.

23LC1024-I/ Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Technology Stock
23LC1024-I/SNVAO (this part) SRAM - Synchronous.. —
23LC1024-I/SN SRAM 903
Also available as: 23LC1024-I/ST

Categories

Memory & Storage > SRAM