AT28HC64B-90TC

Product Overview

Use

This product is primarily used for non-volatile data storage in various electronic devices such as microcontrollers, computers, and consumer electronics.

Characteristics

High-speed operation: The AT28HC64B-90TC offers fast read and write operations, making it suitable for applications requiring quick access to stored data.
Low power consumption: This EEPROM chip is designed to minimize power consumption, making it ideal for battery-powered devices.
Non-volatile memory: The stored data remains intact even when the power supply is disconnected.
High endurance: The AT28HC64B-90TC can withstand a large number of read and write cycles, ensuring long-term reliability.
Wide operating voltage range: It operates within a voltage range of 2.7V to 5.5V, providing flexibility in different electronic systems.

Package and Quantity

The AT28HC64B-90TC is available in a Thin Small Outline Package (TSOP) with 32 pins. It is typically sold in reels containing multiple units.

Specifications

Capacity: 64 kilobits (8 kilobytes)
Organization: 8,192 words x 8 bits
Access Time: 90 nanoseconds
Operating Voltage Range: 2.7V to 5.5V
Standby Current: 10 microamps (max)
Operating Temperature Range: -40°C to +85°C

Pin Configuration

The AT28HC64B-90TC has a total of 32 pins, which are assigned specific functions. The pin configuration is as follows:

A0
A1
A2
A3
A4
A5
A6
A7
VCC
CE (Chip Enable)
OE (Output Enable)
WE (Write Enable)
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
NC (No Connection)
GND
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC

Functional Features

Random access: The AT28HC64B-90TC allows random access to any memory location, enabling efficient data retrieval.
Byte-wise programming: It supports byte-level programming, allowing selective modification of specific data bytes without affecting the rest of the memory.
Hardware and software protection: This EEPROM chip provides various protection mechanisms to prevent unauthorized access or accidental modifications to stored data.
High reliability: With built-in error detection and correction techniques, the AT28HC64B-90TC ensures data integrity and reliable operation.

Advantages and Disadvantages

Advantages

Fast read and write operations
Low power consumption
Non-volatile memory
High endurance
Wide operating voltage range

Disadvantages

Limited storage capacity compared to other memory technologies
Relatively higher cost per kilobyte compared to larger capacity EEPROMs

Working Principles

The AT28HC64B-90TC utilizes a combination of electronic circuits and floating gate transistors to store and retrieve data. When writing data, an electric charge is applied to the floating gate, altering its electrical characteristics. This charge can be removed during the erasing process, allowing the memory cell to be reprogrammed. During read operations, the stored charge is measured to determine the data value.

Application Field Plans

The AT28HC64B-90TC finds applications in various electronic systems, including but not limited to: - Microcontrollers - Computers and servers - Automotive electronics - Industrial control systems - Consumer electronics (e.g., smartphones, tablets, gaming consoles)

Alternative Models

Several alternative models with similar specifications and functionality are available in the market. Some notable alternatives to the AT28HC64B-90TC include: - AT28C64B-15PU - 24LC64-I/P - M93C66-WMN6TP

These alternatives offer comparable performance and compatibility, providing users with flexibility in choosing the most suitable EEPROM chip for their specific requirements.

In conclusion, the AT28HC64B-90TC is a high-speed, low-power EEPROM chip that offers reliable non-volatile data storage. With its fast operation, low power consumption, and wide operating voltage range, it is well

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av AT28HC64B-90TC i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of AT28HC64B-90TC in technical solutions:

Q: What is the AT28HC64B-90TC? A: The AT28HC64B-90TC is a high-speed, low-power CMOS 64K (8K x 8) EEPROM memory chip.
Q: What are some typical applications for the AT28HC64B-90TC? A: The AT28HC64B-90TC is commonly used in embedded systems, microcontrollers, industrial control systems, automotive electronics, and other electronic devices that require non-volatile memory storage.
Q: What is the operating voltage range of the AT28HC64B-90TC? A: The AT28HC64B-90TC operates within a voltage range of 4.5V to 5.5V.
Q: What is the maximum clock frequency supported by the AT28HC64B-90TC? A: The AT28HC64B-90TC supports a maximum clock frequency of 90 MHz.
Q: How much data can be stored in the AT28HC64B-90TC? A: The AT28HC64B-90TC has a capacity of 64 kilobits, which is equivalent to 8 kilobytes or 8192 bytes.
Q: Can the AT28HC64B-90TC be reprogrammed? A: No, the AT28HC64B-90TC is a one-time programmable (OTP) memory chip and cannot be reprogrammed after initial programming.
Q: What is the endurance rating of the AT28HC64B-90TC? A: The AT28HC64B-90TC has an endurance rating of 10,000 write cycles, meaning it can be written to and erased up to 10,000 times before it may start to degrade.
Q: Does the AT28HC64B-90TC require any external components for operation? A: Yes, the AT28HC64B-90TC requires a power supply, decoupling capacitors, and appropriate control signals (such as chip enable, write enable, and output enable) for proper operation.
Q: What is the temperature range in which the AT28HC64B-90TC can operate? A: The AT28HC64B-90TC can operate within a temperature range of -40°C to +85°C.
Q: Is the AT28HC64B-90TC compatible with standard microcontroller interfaces? A: Yes, the AT28HC64B-90TC uses a standard 8-bit parallel interface and is compatible with most microcontrollers and digital systems that support this interface.

Please note that these answers are based on general information about the AT28HC64B-90TC and may vary depending on specific application requirements.