CY7C4251V-15AXC

Product Overview

Category

The CY7C4251V-15AXC 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 CY7C4251V-15AXC operates synchronously with an external clock signal, ensuring precise timing and efficient data transfer.
• Dual-port architecture: It features two separate ports, allowing simultaneous read and write operations on different addresses.
• High-speed performance: With a maximum operating frequency of 15 MHz, this IC offers fast data access and transfer rates.
• Low power consumption: The CY7C4251V-15AXC is designed to minimize power consumption, making it suitable for battery-powered devices.
• Wide voltage range: It supports a wide supply voltage range of 3.0V to 5.5V, providing flexibility in various system configurations.

Package and Quantity

The CY7C4251V-15AXC is available in a 44-pin thin quad flat pack (TQFP) package. Each package contains one IC.

Specifications

• Organization: 256K x 18 bits
• Access Time: 15 ns
• Operating Voltage: 3.0V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Standby Current: 10 μA (typical)
• Package Type: 44-pin TQFP

Pin Configuration

The pin configuration of the CY7C4251V-15AXC is as follows:

+-------------------+ A0 |1 44| Vcc A1 |2 43| OE# A2 |3 42| WE# A3 |4 41| I/O17 A4 |5 40| I/O16 A5 |6 39| I/O15 A6 |7 38| I/O14 A7 |8 37| I/O13 A8 |9 36| I/O12 A9 |10 35| I/O11 A10 |11 34| I/O10 A11 |12 33| I/O9 A12 |13 32| I/O8 A13 |14 31| I/O7 A14 |15 30| I/O6 A15 |16 29| I/O5 A16 |17 28| I/O4 A17 |18 27| I/O3 A18 |19 26| I/O2 A19 |20 25| I/O1 A20 |21 24| I/O0 GND |22 23| CE# +-------------------+

Functional Features

• Simultaneous Read and Write: The dual-port architecture allows independent read and write operations to occur simultaneously on different ports, enabling efficient data transfer.
• Asynchronous and Synchronous Operation: The CY7C4251V-15AXC supports both asynchronous and synchronous operation modes, providing flexibility in system design.
• Byte-Wide Data Access: The IC allows byte-wide data access, enabling efficient utilization of memory space and facilitating compatibility with various microprocessors.
• Automatic Power Down: It features an automatic power-down mode that reduces power consumption when the device is idle, enhancing energy efficiency.

Advantages and Disadvantages

Advantages

• High-speed operation enables fast data access and transfer rates.
• Dual-port architecture allows simultaneous read and write operations.
• Wide voltage range provides flexibility in system configurations.
• Low power consumption makes it suitable for battery-powered devices.
• Automatic power-down mode enhances energy efficiency.

Disadvantages

• Limited storage capacity (256K x 18 bits) compared to other memory options.
• Relatively higher cost per bit compared to larger memory chips.

Working Principles

The CY7C4251V-15AXC 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 synchronous operation ensures precise timing and synchronization with an external clock signal. The dual-port architecture allows independent access to two separate