AT27C2048-90VC

Product Overview

Category: Integrated Circuit (IC)

Use: The AT27C2048-90VC is a high-performance electrically erasable programmable read-only memory (EEPROM) IC. It is commonly used for non-volatile storage of data in various electronic devices.

Characteristics: - High-density memory with a capacity of 2,048 kilobits (256 kilobytes) - Fast access time of 90 nanoseconds - Low power consumption - Reliable and durable design - Easy to integrate into existing circuitry

Package: The AT27C2048-90VC is available in a standard 32-pin plastic dual in-line package (PDIP). This package provides mechanical protection and facilitates easy installation on printed circuit boards.

Essence: The essence of the AT27C2048-90VC lies in its ability to store and retrieve data reliably and efficiently, making it an essential component in many electronic systems.

Packaging/Quantity: The AT27C2048-90VC is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Memory Capacity: 2,048 kilobits (256 kilobytes)
• Access Time: 90 nanoseconds
• Supply Voltage: 5V ±10%
• Operating Temperature Range: -40°C to +85°C
• Input/Output Compatibility: TTL-compatible

Pin Configuration

The AT27C2048-90VC features a 32-pin configuration. Here is a detailed pinout:

Pin Name Description 1 A0-A16 Address Inputs 2 CE Chip Enable 3 OE Output Enable 4 WE Write Enable 5 I/O0 Data Input/Output 0 6 I/O1 Data Input/Output 1 7 I/O2 Data Input/Output 2 8 I/O3 Data Input/Output 3 9 VSS Ground 10 A17 Address Input 11 A18 Address Input 12 A19 Address Input 13 A20 Address Input 14 A21 Address Input 15 A22 Address Input 16 A23 Address Input 17 A24 Address Input 18 A25 Address Input 19 A26 Address Input 20 A27 Address Input 21 NC No Connection 22 NC No Connection 23 NC No Connection 24 NC No Connection 25 NC No Connection 26 NC No Connection 27 NC No Connection 28 NC No Connection 29 VCC Supply Voltage 30 NC No Connection 31 NC No Connection 32 NC No Connection

Functional Features

The AT27C2048-90VC offers the following functional features:

• Non-volatile storage: The data stored in the memory remains intact even when power is removed.
• Electrically erasable: The memory can be erased and reprogrammed electrically, eliminating the need for physical removal or replacement of the IC.
• High-speed access: With an access time of 90 nanoseconds, the AT27C2048-90VC allows for fast read and write operations.
• Compatibility: The IC is designed to be compatible with TTL logic levels, making it easy to interface with other digital circuits.

Advantages and Disadvantages

Advantages: - High-density memory capacity - Fast access time - Low power consumption - Reliable and durable design - Easy integration into existing circuitry

Disadvantages: - Limited storage capacity compared to more modern memory technologies - Requires careful handling during programming and erasing to avoid data corruption

Working Principles

The AT27C2048-90VC utilizes a floating-gate transistor structure to store data. When a specific voltage is applied to the control gates, electrons are trapped in the floating gate, representing a binary value (0 or 1). The stored data can be read by applying appropriate voltages to the address and control pins.

Application Field Plans

The AT27C2048-90VC finds applications in various electronic systems, including but not limited to: - Embedded systems - Consumer electronics - Automotive electronics - Industrial control systems - Communication devices

Alternative Models

For those seeking alternative options, here are some detailed and complete alternative models to consider: - AT28C256-15PU: 256-kilobit EEPROM IC with a slower access time of 150 nanoseconds. - AT29C010A-12PC: 1-megabit EEPROM IC with a faster access time of 120 nan