CY7C4251-15JXCT

Product Overview

Category

The CY7C4251-15JXCT belongs to the category of integrated circuits (ICs), specifically a synchronous dual-port static random access memory (SDP SRAM) chip.

Use

This IC is primarily used in applications that require high-speed and reliable data storage and retrieval. It provides simultaneous access to two independent ports, making it suitable for multi-processor systems, networking equipment, and other data-intensive applications.

Characteristics

• Synchronous operation: The CY7C4251-15JXCT operates synchronously with an external clock signal, ensuring precise timing and efficient data transfer.
• Dual-port architecture: It features two independent ports, allowing simultaneous read and write operations from different sources.
• High-speed performance: With a maximum operating frequency of 15 MHz, this IC offers fast data access and transfer rates.
• Low power consumption: The CY7C4251-15JXCT is designed to minimize power consumption, making it suitable for battery-powered devices.
• Wide temperature range: It can operate reliably across a wide temperature range, from -40°C to +85°C.
• Small package size: This IC is available in a compact package, enabling space-efficient designs.

Package and Quantity

The CY7C4251-15JXCT is typically packaged in a 44-pin plastic thin quad flat pack (TQFP). Each package contains one IC.

Specifications

• Organization: 256K x 18 bits
• Supply voltage: 3.3V
• Access time: 15 ns
• Operating temperature range: -40°C to +85°C
• Package type: 44-pin TQFP

Pin Configuration

The pin configuration of the CY7C4251-15JXCT is as follows:

+-------------------+ A0 |1 44| Vcc A1 |2 43| OE# A2 |3 42| WE# A3 |4 41| I/O0 A4 |5 40| I/O1 A5 |6 39| I/O2 A6 |7 38| I/O3 A7 |8 37| I/O4 A8 |9 36| I/O5 A9 |10 35| I/O6 A10 |11 34| I/O7 A11 |12 33| I/O8 A12 |13 32| I/O9 A13 |14 31| I/O10 A14 |15 30| I/O11 A15 |16 29| I/O12 A16 |17 28| I/O13 A17 |18 27| I/O14 A18 |19 26| I/O15 A19 |20 25| GND A20 |21 24| CLK A21 |22 23| CE# +-------------------+

Functional Features

The CY7C4251-15JXCT offers the following functional features:

• Simultaneous dual-port access: It allows two independent ports to read from or write to different memory locations simultaneously.
• Byte-wide data organization: The IC stores and retrieves data in byte-wide format, providing flexibility in data handling.
• Asynchronous and synchronous operation: It supports both asynchronous and synchronous modes of operation, allowing compatibility with various system architectures.
• Automatic power-down: The IC includes a power-down feature that reduces power consumption when the device is not in use.
• Built-in error detection and correction: It incorporates error detection and correction circuitry to ensure data integrity.

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient data transfer.
• Dual-port architecture allows for simultaneous access from multiple sources.
• Low power consumption makes it suitable for battery-powered devices.
• Wide temperature range ensures reliable operation in various environments.
• Compact package size facilitates space-efficient designs.

Disadvantages

• Limited storage capacity compared to larger memory chips.
• Higher cost per bit compared to some other memory technologies.
• Requires external clock signal for synchronous operation.

Working Principles

The CY7C4251-15JXCT operates based on static random access memory (SRAM) technology. It stores data in a volatile manner, meaning that the stored information is lost when power is removed. The IC uses a dual-port architecture, allowing two independent ports to access different memory locations simultaneously. It can