AT27C4096-55JU

Product Overview

Category

AT27C4096-55JU belongs to the category of programmable read-only memory (PROM) chips.

Use

This chip is commonly used for storing permanent data or program code that cannot be modified once programmed.

Characteristics

• Non-volatile: The stored data remains intact even when power is turned off.
• High storage capacity: The AT27C4096-55JU has a capacity of 4,096 kilobits (512 kilobytes).
• Fast access time: It operates at a speed of 55 nanoseconds, allowing for quick retrieval of data.
• Low power consumption: The chip is designed to minimize power usage.

Package

The AT27C4096-55JU is available in a 44-pin plastic J-lead chip carrier (PLCC) package.

Essence

The essence of this PROM chip lies in its ability to store large amounts of data permanently and provide fast access to that data.

Packaging/Quantity

The AT27C4096-55JU is typically packaged in tubes or trays, with each tube or tray containing a specific quantity of chips. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Memory Type: Programmable Read-Only Memory (PROM)
• Capacity: 4,096 kilobits (512 kilobytes)
• Access Time: 55 nanoseconds
• Package Type: 44-pin PLCC
• Operating Voltage: 5V
• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AT27C4096-55JU has a total of 44 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. I/O0-I/O7: Data Input/Output
6. VCC: Power Supply (5V)
7. GND: Ground

Note: The remaining pins are not listed here for brevity.

Functional Features

• High-speed access: The AT27C4096-55JU offers fast access time, allowing for efficient retrieval of data.
• Non-volatile storage: The stored data remains intact even when power is turned off.
• Easy integration: The chip can be easily integrated into various electronic systems due to its standard pin configuration and package.

Advantages and Disadvantages

Advantages

• Large storage capacity: The AT27C4096-55JU provides ample space for storing data or program code.
• Fast access time: The chip allows for quick retrieval of information.
• Low power consumption: It minimizes power usage, making it suitable for battery-powered devices.

Disadvantages

• Lack of flexibility: Once programmed, the data cannot be modified or erased, limiting its use in applications requiring frequent updates.
• Limited write cycles: The chip has a finite number of write cycles, after which it may become unreliable.

Working Principles

The AT27C4096-55JU operates based on the principle of electrical programming. During programming, a high voltage is applied to the appropriate pins to store the desired data. Once programmed, the data remains fixed until the chip is replaced.

Detailed Application Field Plans

The AT27C4096-55JU finds application in various fields, including: 1. Embedded systems: Used for storing firmware or boot code in microcontrollers. 2. Automotive electronics: Used for storing calibration data or configuration settings in automotive control units. 3. Industrial automation: Used for storing configuration parameters or lookup tables in programmable logic controllers (PLCs). 4. Consumer electronics: Used for storing firmware or configuration data in devices such as gaming consoles or set-top boxes.

Detailed and Complete Alternative Models

1. AT27C010-70PU: 1-megabit (128 kilobytes) PROM chip with a slower access time of 70 nanoseconds.
2. AT28C256-15PU: 256-kilobit (32 kilobytes) EEPROM chip with an access time of 15 nanoseconds.
3. AM29F040B-90JC: 4-megabit (512 kilobytes) flash memory chip with a faster access time of 90 nanoseconds.

These alternative models offer different capacities, access times, and memory types to suit specific application requirements.

In conclusion, the AT27C4096-55JU is a high-capacity PROM chip that provides non-volatile storage and fast access to data. While it has limitations in terms of flexibility and write cycles, it finds applications in various fields and can be replaced by alternative models with different specifications.