SST39SF020A-70-4C-PHE

Product Overview

Category

The SST39SF020A-70-4C-PHE belongs to the category of Flash Memory.

Use

This product is commonly used for data storage in various electronic devices, such as computers, smartphones, and digital cameras.

Characteristics

• Non-volatile memory: The SST39SF020A-70-4C-PHE retains stored data even when power is turned off.
• High storage capacity: This flash memory chip has a capacity of 2 megabits (256 kilobytes).
• Fast read and write speeds: The chip operates at a speed of 70 nanoseconds for both reading and writing data.
• Low power consumption: The SST39SF020A-70-4C-PHE is designed to minimize power usage, making it suitable for battery-powered devices.
• Wide operating temperature range: It can operate reliably in temperatures ranging from -40°C to 85°C.

Package and Essence

The SST39SF020A-70-4C-PHE is available in a standard 32-pin plastic package. Its essence lies in its ability to store and retrieve digital information quickly and reliably.

Packaging/Quantity

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

Specifications

• Memory Type: Flash
• Capacity: 2 Megabits (256 Kilobytes)
• Access Time: 70 Nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to 85°C
• Package Type: 32-pin Plastic

Detailed Pin Configuration

The SST39SF020A-70-4C-PHE has a total of 32 pins, each serving a specific purpose. The pin configuration is as follows:

1. VCC - Power Supply
2. A0-A16 - Address Inputs
3. DQ0-DQ7 - Data Inputs/Outputs
4. WE# - Write Enable
5. CE# - Chip Enable
6. OE# - Output Enable
7. RP# - Reset/Block Protect
8. BYTE# - Byte/Word Organization Select
9. RY/BY# - Ready/Busy Output
10. NC - No Connection 11-32. GND - Ground

Functional Features

The SST39SF020A-70-4C-PHE offers several functional features that enhance its usability and performance:

• Block Erase: The chip supports block erase operations, allowing for efficient erasure of large sections of memory.
• Sector Lockdown: It provides the ability to protect specific sectors of memory from being accidentally erased or modified.
• Automatic Program and Erase: The chip incorporates built-in algorithms for automatic programming and erasing, simplifying the overall operation.
• High Reliability: With advanced error correction techniques, this flash memory chip ensures data integrity and reliability.

Advantages and Disadvantages

Advantages

• Fast read and write speeds enable quick data access.
• Non-volatile memory retains data even during power loss.
• Low power consumption prolongs battery life in portable devices.
• Wide operating temperature range allows for use in various environments.
• Block erase and sector lockdown features provide data protection.

Disadvantages

• Limited storage capacity compared to higher-capacity flash memory chips.
• Higher cost per megabit compared to larger capacity options.
• Requires external circuitry for proper interfacing with the host device.

Working Principles

The SST39SF020A-70-4C-PHE utilizes a technology called floating-gate MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) to store and retrieve data. It employs a grid of memory cells, with each cell capable of storing a single bit of information. By applying appropriate voltages to the control gates and the floating gates, data can be written, read, or erased from the memory cells.

Detailed Application Field Plans

The SST39SF020A-70-4C-PHE finds applications in various fields, including:

1. Consumer Electronics: Used in digital cameras, MP3 players, and gaming consoles for data storage.
2. Computer Systems: Employed in desktops, laptops, and servers for firmware storage and BIOS updates.
3. Automotive Industry: Utilized in car infotainment systems, navigation devices, and engine control units for data storage and firmware updates.
4. Industrial Automation: Integrated into programmable logic controllers (PLCs), human-machine interfaces (HMIs), and industrial control systems for data storage and firmware upgrades.

Detailed and Complete Alternative Models

1. SST39VF040-70-4C-NHE: Similar flash memory chip with 4 megabits capacity and faster access time.
2. AT25