AT27C1024-45PC

Product Overview

Category

AT27C1024-45PC belongs to the category of programmable read-only memory (PROM) chips.

Use

This product is commonly used for storing permanent data or program instructions that cannot be modified or erased by the user.

Characteristics

• Non-volatile: The stored data remains intact even when power is turned off.
• High storage capacity: The AT27C1024-45PC has a capacity of 1,048,576 bits (128 kilobytes).
• Fast access time: It operates at a speed of 45 nanoseconds, allowing for quick retrieval of data.
• Durable: The chip is designed to withstand harsh environmental conditions and has a long lifespan.

Package

The AT27C1024-45PC is available in a 40-pin plastic dual in-line package (PDIP).

Essence

The essence of this product lies in its ability to provide reliable and non-volatile storage for critical data or program code.

Packaging/Quantity

The AT27C1024-45PC is typically sold in tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Memory Type: Programmable Read-Only Memory (PROM)
• Capacity: 1,048,576 bits (128 kilobytes)
• Access Time: 45 nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: 40-pin Plastic Dual In-Line Package (PDIP)

Detailed Pin Configuration

The AT27C1024-45PC has a total of 40 pins. Here is the detailed pin configuration:

1. A0-A18: Address Inputs
2. CE: Chip Enable
3. OE: Output Enable
4. WE: Write Enable
5. VCC: Power Supply (5V)
6. GND: Ground 7-34. DQ0-DQ15: Data Inputs/Outputs 35-40. NC: No Connection

Functional Features

• High-speed operation: The AT27C1024-45PC offers fast access times, allowing for efficient data retrieval.
• Non-volatile storage: The stored data remains intact even when power is disconnected, ensuring data integrity.
• Easy integration: The chip can be easily integrated into various electronic systems due to its standard pin configuration and package.

Advantages and Disadvantages

Advantages

• Reliable and durable storage solution.
• Fast access times for quick data retrieval.
• Non-volatile memory ensures data integrity.
• Easy integration into existing systems.

Disadvantages

• Inability to modify or erase stored data, limiting flexibility.
• Relatively low storage capacity compared to other memory technologies.

Working Principles

The AT27C1024-45PC operates based on the principle of electrical programming. During the manufacturing process, the memory cells are programmed by applying specific voltage levels to the address inputs and control pins. Once programmed, the stored data becomes permanent and cannot be modified or erased by the user.

Detailed Application Field Plans

The AT27C1024-45PC finds applications in various fields, including:

1. Embedded Systems: Used for storing firmware or boot code in microcontrollers and other embedded devices.
2. Automotive Electronics: Employed for storing critical data such as calibration tables, configuration settings, and diagnostic codes.
3. Industrial Control Systems: Utilized for storing program instructions in PLCs (Programmable Logic Controllers) and other industrial control devices.
4. Medical Devices: Used for storing firmware or patient data in medical equipment such as ultrasound machines and patient monitors.

Detailed and Complete Alternative Models

1. AT28C256-15PU: 256-kilobit (32 kilobytes) parallel EEPROM with a 150ns access time.
2. AT29C010A-12PC: 1-megabit (128 kilobytes) parallel flash memory with a 120ns access time.
3. AM27C2048-90DC: 2-megabit (256 kilobytes) parallel EPROM with a 90ns access time.

These alternative models offer similar functionality and can be considered as substitutes for the AT27C1024-45PC, depending on specific requirements.

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