AT27C1024-70PC

Product Overview

Category: Integrated Circuit (IC)

Use: The AT27C1024-70PC is a high-performance, low-power, 1 Megabit (128K x 8) electrically erasable programmable read-only memory (EEPROM). It is designed to store and retrieve data in various electronic systems.

Characteristics: - High performance: The AT27C1024-70PC 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 package: The AT27C1024-70PC is housed in a sturdy and compact package, ensuring protection during handling and installation. - Packaging/Quantity: The IC is typically available in a plastic dual in-line package (PDIP) and is sold in quantities suitable for both individual and bulk usage.

Specifications

• Supply Voltage: 5V ±10%
• Operating Temperature Range: -40°C to +85°C
• Access Time: 70ns
• Standby Current: 100μA (max)
• Input/Output Levels: TTL-compatible

Pin Configuration

The AT27C1024-70PC features a standard 32-pin configuration. Here is a detailed pinout:

┌───┬───────────────────────┐ │Pin│ Function │ ├───┼───────────────────────┤ │ 1 │ A12 │ │ 2 │ A7 │ │ 3 │ A6 │ │ 4 │ A5 │ │ 5 │ A4 │ │ 6 │ A3 │ │ 7 │ A2 │ │ 8 │ A1 │ │ 9 │ A0 │ │10 │ VCC │ │11 │ OE# (Output Enable) │ │12 │ CE# (Chip Enable) │ │13 │ WE# (Write Enable) │ │14 │ I/O0 │ │15 │ I/O1 │ │16 │ I/O2 │ │17 │ I/O3 │ │18 │ I/O4 │ │19 │ I/O5 │ │20 │ I/O6 │ │21 │ I/O7 │ │22 │ NC (No Connection) │ │23 │ GND │ │24 │ A8 │ │25 │ A9 │ │26 │ A11 │ │27 │ A10 │ │28 │ BYTE# (Byte Mode) │ │29 │ RP# (Reset/Program) │ │30 │ VPP (Programming Volt)│ │31 │ A15 │ │32 │ A14 │ └───┴───────────────────────┘

Functional Features

The AT27C1024-70PC offers the following functional features:

• High-speed access: The EEPROM provides fast read and write operations, allowing for efficient data retrieval and storage.
• Byte mode operation: It supports byte-level programming, enabling selective modification of specific memory locations.
• Reliable data retention: The stored data remains intact for extended periods, even in the absence of power.
• Easy integration: The IC can be easily integrated into various electronic systems due to its standard pin configuration and compatibility with TTL logic levels.

Advantages and Disadvantages

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

Disadvantages: - Relatively slower access time compared to some modern EEPROMs - Limited temperature range (-40°C to +85°C)

Working Principles

The AT27C1024-70PC operates based on the principles of electrically erasable programmable read-only memory (EEPROM). It utilizes a combination of transistors and floating gate technology to store and retrieve data. The stored data can be erased and reprogrammed electrically by applying specific voltage levels to the appropriate pins.

Application Field Plans

The AT27C1024-70PC finds applications in various fields, including but not limited to: - Embedded systems - Consumer