AT27C040-15RC

Product Overview

Category: Integrated Circuit (IC)

Use: The AT27C040-15RC is a 4-megabit (512K x 8) electrically erasable programmable read-only memory (EEPROM) IC. It is commonly used for storing non-volatile data in various electronic devices.

Characteristics: - Non-volatile memory - Electrically erasable and programmable - High storage capacity of 4 megabits - Low power consumption - Fast access time

Package: The AT27C040-15RC is available in a 32-pin plastic dual in-line package (PDIP). This package provides protection to the integrated circuit and facilitates easy integration into electronic circuits.

Essence: The essence of the AT27C040-15RC lies in its ability to store and retain data even when power is removed. This makes it ideal for applications where non-volatile memory is required.

Packaging/Quantity: The AT27C040-15RC is typically sold in reels or tubes, with each reel or tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Memory Size: 4 Megabits (512K x 8)
• Access Time: 150 ns
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years
• Endurance: 100,000 erase/write cycles

Pin Configuration

The AT27C040-15RC has a total of 32 pins. The pin configuration is as follows:

```

Pin Name Description

1 A0-A18 Address Inputs 2 CE Chip Enable 3 OE Output Enable 4 WE Write Enable 5-12 DQ0-DQ7 Data Input/Output 13 VPP Programming Voltage 14 NC No Connection 15 A19 Address Input 16 A20 Address Input 17 A21 Address Input 18 A22 Address Input 19 A23 Address Input 20 A24 Address Input 21 A25 Address Input 22 A26 Address Input 23 A27 Address Input 24 A28 Address Input 25 A29 Address Input 26 A30 Address Input 27 A31 Address Input 28 GND Ground 29 VCC Power Supply 30 NC No Connection 31 NC No Connection 32 NC No Connection ```

Functional Features

The AT27C040-15RC offers the following functional features:

1. Electrically Erasable and Programmable: The IC can be electrically erased and reprogrammed, allowing for flexibility in data storage.

2. High Storage Capacity: With a capacity of 4 megabits, the AT27C040-15RC can store a large amount of data.

3. Fast Access Time: The access time of 150 ns ensures quick retrieval of stored data.

4. Low Power Consumption: The IC operates on a low supply voltage and consumes minimal power, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages: - Non-volatile memory ensures data retention even without power. - Electrically erasable and programmable, providing flexibility in data storage. - High storage capacity allows for storing large amounts of data. - Fast access time enables quick retrieval of information. - Low power consumption makes it suitable for portable devices.

Disadvantages: - Limited endurance of 100,000 erase/write cycles. - Requires a programming voltage (VPP) for erasing and programming.

Working Principles

The AT27C040-15RC utilizes electrically erasable programmable read-only memory (EEPROM) technology. It stores data by trapping charges in a floating gate within the memory cells. The presence or absence of these charges determines the stored data. The IC can be electrically erased and reprogrammed by applying specific voltage levels to the appropriate pins.

Application Field Plans

The AT27C040-15RC finds applications in various electronic devices that require non-volatile memory, such as: 1. Microcontrollers 2. Embedded systems 3. Automotive electronics 4. Industrial control systems 5. Consumer electronics

Alternative Models

There are several alternative models available in the market that offer similar functionality to the AT27C040-15RC. Some notable alternatives include: - AT28C64B-15PU: 64K (8K x 8) EEPROM IC with a 150 ns access time. - AT29C010