AT27LV040A-12TC

Product Overview

Category

AT27LV040A-12TC belongs to the category of programmable read-only memory (PROM) chips.

Use

This chip is commonly used for storing permanent data that cannot be modified or erased. It is widely utilized in various electronic devices and systems.

Characteristics

• Non-volatile memory: The stored data remains intact even when power is turned off.
• High storage capacity: The AT27LV040A-12TC has a capacity of 4 megabits (512 kilobytes).
• Low power consumption: This chip operates efficiently with low power requirements.
• Fast access time: It offers a fast access time of 120 nanoseconds.

Package

The AT27LV040A-12TC is available in a Thin Small Outline Package (TSOP). This package provides a compact form factor, making it suitable for space-constrained applications.

Essence

The essence of the AT27LV040A-12TC lies in its ability to store large amounts of data permanently, ensuring reliable and secure information storage.

Packaging/Quantity

This chip is typically packaged in reels or tubes, with each reel containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer's specifications.

Specifications

• Memory Type: PROM
• Capacity: 4 Megabits (512 Kilobytes)
• Access Time: 120 ns
• Operating Voltage: 5V
• Package Type: TSOP

Detailed Pin Configuration

The AT27LV040A-12TC chip has a total of 32 pins. The pin configuration is as follows:

1. VCC - Power Supply
2. A0-A18 - Address Inputs
3. CE - Chip Enable
4. OE - Output Enable
5. WE - Write Enable
6. I/O0-I/O7 - Data Inputs/Outputs
7. NC - No Connection
8. GND - Ground

Functional Features

• Chip Enable (CE): Activates the chip for read or write operations.
• Output Enable (OE): Enables the output buffers to drive the data bus.
• Write Enable (WE): Allows data to be written into the memory cells.
• Address Inputs (A0-A18): Selects the specific memory location to read from or write to.
• Data Inputs/Outputs (I/O0-I/O7): Transfers data between the chip and the external system.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Data remains intact even without power.
• High storage capacity: Offers ample space for storing large amounts of data.
• Fast access time: Allows for quick retrieval of information.
• Low power consumption: Operates efficiently with minimal power requirements.

Disadvantages

• Limited write capability: Once programmed, the data cannot be modified or erased.
• Relatively larger form factor compared to newer memory technologies.

Working Principles

The AT27LV040A-12TC operates based on the principle of electrical charge trapping. The memory cells within the chip are programmed during the manufacturing process and retain their programmed state even when power is removed. When a specific memory location is addressed, the stored data is retrieved and made available for reading or writing.

Detailed Application Field Plans

The AT27LV040A-12TC finds applications in various electronic systems, including but not limited to: - Embedded systems - Automotive electronics - Industrial control systems - Consumer electronics - Communication devices

Its reliable and non-volatile storage capabilities make it suitable for applications where permanent data storage is required.

Detailed and Complete Alternative Models

Some alternative models to the AT27LV040A-12TC include: - AT27C040 - AT27C080 - AT27C256R - AT27C512R

These models offer similar functionality and characteristics, but may differ in terms of capacity, package type, or access time.

In conclusion, the AT27LV040A-12TC is a programmable read-only memory chip that provides reliable and non-volatile storage for various electronic systems. With its high capacity, fast access time, and low power consumption, it serves as an essential component in many applications.