23K256-I/ST

Product Overview

Category

The 23K256-I/ST belongs to the category of Serial SRAM (Static Random Access Memory) chips.

Use

This product is commonly used as a non-volatile memory solution in various electronic devices, including microcontrollers, embedded systems, and consumer electronics.

Characteristics

• Non-volatile: The 23K256-I/ST retains data even when power is disconnected.
• High-speed operation: It offers fast read and write access times.
• Low power consumption: This chip is designed to minimize power usage.
• Small form factor: The package size allows for easy integration into compact designs.

Package

The 23K256-I/ST is available in a small surface-mount package (ST), which facilitates its use in space-constrained applications.

Essence

The essence of the 23K256-I/ST lies in its ability to provide reliable and non-volatile storage for electronic devices, ensuring data integrity and quick access.

Packaging/Quantity

This product is typically packaged in reels or tubes, with varying quantities depending on the manufacturer's specifications.

Specifications

• Memory Size: 256 kilobits (32 kilobytes)
• Interface: SPI (Serial Peripheral Interface)
• Operating Voltage: 2.7V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: Up to 100 years
• Endurance: 1 million write cycles

Detailed Pin Configuration

The 23K256-I/ST features an 8-pin package with the following pin configuration:

1. Chip Select (/CS)
2. Serial Clock (SCK)
3. Serial Data Input (SI)
4. Serial Data Output (SO)
5. Write Protect (/WP)
6. Hold (/HOLD)
7. VCC (Power Supply)
8. VSS (Ground)

Functional Features

• Byte-level Read and Write Operations: The chip allows for individual byte access, enabling efficient data manipulation.
• Sequential Read Mode: It supports continuous reading of multiple bytes, reducing overhead in accessing consecutive data.
• Hardware Write Protection: The /WP pin can be used to protect the memory from accidental writes.
• Hold Functionality: The /HOLD pin suspends ongoing operations without losing data.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data integrity even during power loss.
• High-speed operation enables quick access to stored information.
• Low power consumption prolongs battery life in portable devices.
• Small form factor facilitates integration into space-constrained designs.

Disadvantages

• Limited storage capacity compared to other memory solutions.
• Relatively higher cost per kilobit compared to larger memory chips.
• Requires an SPI interface, which may not be compatible with all systems.

Working Principles

The 23K256-I/ST utilizes a combination of volatile and non-volatile memory cells to store data. It employs a Serial Peripheral Interface (SPI) for communication with the host device. When powered, the chip allows read and write operations at high speeds. The non-volatile nature of the memory ensures that data remains intact even when power is disconnected.

Detailed Application Field Plans

The 23K256-I/ST finds applications in various fields, including:

1. Microcontrollers: Used as additional storage for program code or data.
2. Embedded Systems: Provides non-volatile memory for storing configuration settings or critical data.
3. Consumer Electronics: Enables fast data access in devices such as digital cameras, printers, and gaming consoles.

Detailed and Complete Alternative Models

1. 23LC1024: Offers double the storage capacity (1 megabit) compared to the 23K256-I/ST.
2. 23A1024: Provides the same storage capacity as the 23K256-I/ST but operates at a lower voltage (1.8V).

These alternative models offer similar functionality to the 23K256-I/ST, with varying specifications to suit different application requirements.

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