SST39SF040-45-4I-WHE

Product Overview

Category

The SST39SF040-45-4I-WHE belongs to the category of Flash Memory.

Use

This product is commonly used for storing and retrieving digital information in various electronic devices such as computers, smartphones, tablets, and other consumer electronics.

Characteristics

• Non-volatile: The data stored in the SST39SF040-45-4I-WHE remains intact even when power is turned off.
• High storage capacity: This flash memory chip has a capacity of 4 megabits (512 kilobytes).
• Fast read and write speeds: The SST39SF040-45-4I-WHE offers high-speed data transfer, allowing for quick access to stored information.
• Reliable performance: It provides reliable data storage with built-in error correction mechanisms.
• Low power consumption: This flash memory chip is designed to operate efficiently with minimal power consumption.

Package

The SST39SF040-45-4I-WHE is available in a standard 32-pin plastic dual in-line package (PDIP).

Essence

The essence of the SST39SF040-45-4I-WHE lies in its ability to provide reliable and high-capacity storage for electronic devices, ensuring efficient data management and retrieval.

Packaging/Quantity

The SST39SF040-45-4I-WHE is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer's specifications.

Specifications

• Manufacturer: Microchip Technology Inc.
• Part Number: SST39SF040-45-4I-WHE
• Memory Type: Flash
• Memory Size: 4 Megabits (512 Kilobytes)
• Interface: Parallel
• Supply Voltage: 2.7V - 3.6V
• Operating Temperature: -40°C to +85°C
• Package Type: 32-pin PDIP

Detailed Pin Configuration

The SST39SF040-45-4I-WHE has a total of 32 pins, each serving a specific function. The pin configuration is as follows:

1. VCC - Power Supply
2. A0-A18 - Address Inputs
3. DQ0-DQ7 - Data Inputs/Outputs
4. CE# - Chip Enable
5. OE# - Output Enable
6. WE# - Write Enable
7. RP# - Reset/Block Protect
8. BYTE# - Byte/Word Organization Select
9. RY/BY# - Ready/Busy Output
10. VSS - Ground

And so on...

Functional Features

• Block Erase: The SST39SF040-45-4I-WHE supports block erase operations, allowing for efficient erasure of large sections of memory.
• Sector Locking: This flash memory chip provides sector locking capabilities, enabling protection of specific sectors from accidental modification or erasure.
• High-Speed Programming: The SST39SF040-45-4I-WHE offers fast programming speeds, reducing the time required to write data into the memory.
• Data Retention: With a typical data retention period of 20 years, this flash memory chip ensures long-term storage of information.

Advantages and Disadvantages

Advantages

• High storage capacity
• Fast read and write speeds
• Reliable performance
• Low power consumption
• Sector locking for data protection

Disadvantages

• Limited endurance: Flash memory chips have a finite number of write cycles before they start to degrade.
• Relatively higher cost compared to other types of memory.

Working Principles

The SST39SF040-45-4I-WHE utilizes a floating-gate transistor technology to store and retrieve digital information. It employs a combination of electrical charges to represent binary data (0s and 1s). The presence or absence of charge in specific memory cells determines the stored information.

During write operations, the flash memory chip applies high voltages to the appropriate memory cells, allowing electrons to tunnel through a thin oxide layer and become trapped in the floating gate. This process alters the threshold voltage of the cell, representing the desired data.

During read operations, the flash memory chip measures the voltage level of each memory cell to determine the stored data. The presence or absence of charge affects the voltage level, indicating a binary value.

Detailed Application Field Plans

The SST39SF040-45-4I-WHE finds application in various electronic devices and systems, including but not limited to:

1. Personal Computers: Used for storing BIOS firmware, boot loaders, and other critical system software.
2. Consumer Electronics: Integrated into smartphones, tablets, digital cameras, and portable media players for data storage.
3. Automotive Systems: Employed in car infotainment systems, navigation units, and engine control modules for reliable