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AM29F040B-90EF

Name: AM29F040B-90EF
Rating: 4.7 (12 reviews)

NOR Flash 4M (512Kx8) 90ns 5v Parallel NOR Flash

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Mfr。パート #AM29F040B-90EF
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データシート AM29F040B-90EF DataSheet
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仕様

Packaging	Tray
Standard Pack Qty	156

概要

Description

The AM29F040B-90EF is a 4 Megabit (512 K x 8) Flash memory chip produced by Advanced Micro Devices (AMD). It is designed for applications requiring non-volatile memory that can be electrically erased and reprogrammed. The device features a 90 ns access time, making it suitable for high-speed performance in embedded systems.
Key characteristics include:
- Architecture: It utilizes a 32-pin DIP or PLCC package.
- Programming: The chip supports a simple programming method using a single voltage for both programming and erasing, with a sector-based erase capability.
- Endurance: It offers a minimum of 100,000 erase/program cycles, ensuring reliability over time.
- Data Retention: The AM29F040B-90EF provides data retention of up to 20 years under typical conditions.
This Flash memory is commonly used in consumer electronics, automotive applications, and telecommunications for firmware storage and data logging. Its combination of speed, endurance, and ease of use makes it a popular choice in various electronic designs.

Features

The AM29F040B-90EF is a 4 Mbit (512 K x 8) Flash memory chip manufactured by AMD. Key features include:
1. Architecture: It utilizes a single 5V power supply and is organized as 512 Kbytes of memory.
2. Speed: The "-90" suffix indicates a maximum access time of 90 ns, allowing for fast data retrieval.
3. Data Interface: Supports a parallel data interface, enabling easy integration with various microcontrollers and processors.
4. Programming: It features a sector erase capability and supports both byte and word programming modes, allowing for flexible data manipulation.
5. Endurance: The chip has a typical endurance of up to 100,000 write/erase cycles per sector.
6. Data Retention: Offers a data retention period of up to 20 years, ensuring data stability over time.
7. Compatibility: Designed to be compatible with other industry-standard Flash memory devices, facilitating design integration.
These features make the AM29F040B-90EF suitable for applications requiring non-volatile memory storage and quick data access.

Package

The AM29F040B-90EF is packaged in a 32-pin TSOP (Thin Small Outline Package) configuration.

Pinout

The AM29F040B-90EF is a 4 megabit (512 K x 8) Flash memory chip. It has a total of 32 pins. The key functions of the pins include:
1. Address Inputs (A0-A19): Used to select the memory location.
2. Data Inputs/Outputs (DQ0-DQ7): Bidirectional data bus for reading or writing data.
3. Chip Enable (CE): Activates the chip for read/write operations.
4. Output Enable (OE): Enables the output drivers for data read.
5. Write Enable (WE): Controls write operations to the memory.
6. Reset (RESET): Resets the device to a known state.
7. VCC: Power supply pin.
8. VSS: Ground pin.
9. A-1: Used for manufacturer and device identification.
This device operates in a single +5V power supply and is typically used in applications requiring non-volatile memory, such as firmware storage.

Manufacturer

The AM29F040B-90EF is manufactured by Advanced Micro Devices, Inc. (AMD). AMD is a semiconductor company that specializes in developing computer processors and related technologies for both consumer and enterprise markets. Founded in 1969, it is known for its microprocessors, graphics processors, and other chipsets. AMD is recognized as a significant player in the computing industry, competing with other major companies like Intel and NVIDIA. The AM29F040B-90EF is a 4 Mb (512 K x 8) Flash memory device, commonly used in applications requiring non-volatile storage. AMD focuses on innovation in high-performance computing, gaming, and graphics solutions.

Application

The AM29F040B-90EF is a 4-Mbit (512 K x 8) Flash memory chip primarily used in embedded systems for applications such as BIOS storage, firmware updates, and boot code in consumer electronics, automotive systems, industrial automation, and networking devices. Its non-volatile nature makes it suitable for applications requiring data retention without power.

Equivalent

The AM29F040B-90EF is a 4Mb (512K x 8) Flash memory chip. Equivalent products include:
1. Intel 28F040
2. Microchip 25F040
3. STMicroelectronics M29F040
4. Winbond W29F040
These chips share similar specifications, including density and organization, making them suitable replacements depending on the design requirements. Always verify compatibility in specific applications.