AT27C1024-90PI

Product Overview

Category: Integrated Circuit (IC)

Use: The AT27C1024-90PI is a high-performance, low-power, 1-megabit (128K x 8) electrically erasable programmable read-only memory (EEPROM). It is designed for use in various electronic devices and systems that require non-volatile storage of data.

Characteristics: - High-performance: The AT27C1024-90PI offers fast access times and reliable operation. - Low-power consumption: It operates at low power levels, making it suitable for battery-powered devices. - Large storage capacity: With a capacity of 1 megabit, it can store a significant amount of data. - Electrically erasable: The EEPROM can be erased and reprogrammed electrically, eliminating the need for UV light exposure. - Durable: The AT27C1024-90PI has a high endurance, allowing for frequent read and write operations without degradation.

Package: The AT27C1024-90PI comes in a 32-pin plastic dual in-line package (PDIP), which provides easy integration into circuit boards.

Essence: The essence of the AT27C1024-90PI lies in its ability to provide non-volatile storage of data in electronic devices, ensuring that important information is retained even when power is removed.

Packaging/Quantity: The AT27C1024-90PI is typically packaged in tubes or trays, with each tube or tray containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Memory Capacity: 1 Megabit (128K x 8)
• Access Time: 90 nanoseconds
• Supply Voltage: 5V ±10%
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years minimum
• Endurance: 1,000,000 erase/write cycles

Pin Configuration

The AT27C1024-90PI has a total of 32 pins. The pin configuration is as follows:

```

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 I/O4 Data Input/Output 4 10 I/O5 Data Input/Output 5 11 I/O6 Data Input/Output 6 12 I/O7 Data Input/Output 7 13 VCC Supply Voltage 14 NC No Connection 15 A17 Address Input 16 A18 Address Input 17 A19 Address Input 18 A20 Address Input 19 A21 Address Input 20 A22 Address Input 21 A23 Address Input 22 A24 Address Input 23 A25 Address Input 24 A26 Address Input 25 A27 Address Input 26 A28 Address Input 27 A29 Address Input 28 A30 Address Input 29 A31 Address Input 30 GND Ground 31 NC No Connection 32 NC No Connection ```

Functional Features

• Fast access times: The AT27C1024-90PI offers quick access to stored data, allowing for efficient retrieval and processing.
• Easy integration: The IC can be easily integrated into various electronic systems due to its standard pin configuration and package.
• Low-power operation: It operates at low power levels, making it suitable for battery-powered devices.
• Electrically erasable: The EEPROM can be erased and reprogrammed electrically, providing flexibility in data storage and modification.

Advantages and Disadvantages

Advantages: - High-performance operation - Large storage capacity - Low-power consumption - Electrically erasable and reprogrammable - Durable and reliable

Disadvantages: - Relatively higher cost compared to other non-volatile memory options - Limited endurance compared to some newer memory technologies

Working Principles

The AT27C1024-90PI utilizes a combination of electronic circuits and memory cells to store and retrieve data. When the chip enable (CE) and output enable (OE) signals are active, the addressed data stored in the memory array is available on the outputs. The write enable (WE) signal allows for data programming or erasing operations.

Detailed Application