AT28C64-12JI

Product Overview

Category

AT28C64-12JI belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This product is commonly used in electronic devices for storing and retrieving data. It provides non-volatile storage, meaning that the stored data remains even when power is removed.

Characteristics

• Electrically erasable: The AT28C64-12JI can be erased and reprogrammed electronically, making it convenient for updating or modifying stored data.
• High capacity: This chip has a storage capacity of 64 kilobits, allowing it to store a significant amount of data.
• Low power consumption: The AT28C64-12JI operates on low power, making it suitable for battery-powered devices.
• Fast access time: With a speed rating of 120 nanoseconds, this chip enables quick data retrieval.

Package

The AT28C64-12JI comes in a standard JEDEC-approved 32-pin plastic J-lead package. This package ensures compatibility with various electronic systems and facilitates easy integration into circuit boards.

Essence

The essence of the AT28C64-12JI lies in its ability to provide reliable and non-volatile data storage in electronic devices. It offers a balance between capacity, speed, and power consumption, making it suitable for a wide range of applications.

Packaging/Quantity

The AT28C64-12JI is typically packaged in reels or tubes, depending on the manufacturer's specifications. The quantity per package varies but is commonly available in bulk quantities for industrial production.

Specifications

• Manufacturer: Atmel Corporation
• Part Number: AT28C64-12JI
• Memory Type: EEPROM
• Capacity: 64 kilobits (8 kilobytes)
• Access Time: 120 nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: 32-pin plastic J-lead

Detailed Pin Configuration

The AT28C64-12JI has a total of 32 pins, each serving a specific purpose. The pin configuration is as follows:

1. A0-A14: 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

Functional Features

• Chip Enable (CE): Activating this pin allows the chip to respond to read or write operations.
• Output Enable (OE): When enabled, this pin enables the output buffers, allowing data to be read from the chip.
• Write Enable (WE): Activating this pin allows data to be written into the chip.
• Data Input/Output (I/O0-I/O7): These pins serve as bidirectional ports for data transfer between the chip and external devices.
• Address Inputs (A0-A14): These pins are used to specify the memory location for read or write operations.

Advantages and Disadvantages

Advantages

• Non-volatile storage: The AT28C64-12JI retains stored data even when power is removed.
• Electrically erasable: Allows for easy modification or updating of stored data.
• High capacity: Offers ample storage space for various applications.
• Low power consumption: Suitable for battery-powered devices.
• Fast access time: Enables quick data retrieval.

Disadvantages

• Limited rewrite cycles: EEPROMs have a finite number of erase/write cycles before they may become unreliable.
• Relatively slower compared to other memory technologies such as flash memory.

Working Principles

The AT28C64-12JI utilizes a combination of electronic circuits and floating gate transistors to store and retrieve data. When data is written, the charge is trapped in the floating gate, representing a logical "1." Erasing the data involves removing the charge from the floating gate, resetting it to a logical "0." The chip's internal circuitry ensures accurate reading and writing operations.

Detailed Application Field Plans

The AT28C64-12JI finds applications in various fields, including but not limited to: - Consumer electronics: Used in devices such as digital cameras, smartphones, and gaming consoles for data storage. - Automotive industry: Employed in car navigation systems, engine control units, and infotainment systems. - Industrial automation: Utilized in programmable logic controllers (PLCs), robotics, and control systems. - Medical devices: Integrated into medical equipment for storing patient data, test results, and firmware updates. - Communication systems: Used in routers, switches, and network infrastructure for configuration storage.

Detailed and Complete Alternative Models

• AT28C64B-15PU: Similar