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AM29F040B-90JF

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

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

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

Packaging	Tube
Standard Pack Qty	30

概要

Description

The AM29F040B-90JF is a 4Mbit (512KB x 8) Flash memory device produced by AMD. It is designed for applications requiring non-volatile storage, allowing for data retention without power. The device operates with a supply voltage of 3V to 3.6V and features a fast access time of 90ns, making it suitable for high-performance applications.
The AM29F040B utilizes a 32-pin DIP or TSOP package and supports both byte and word access. It features programmable and erasable capabilities, allowing users to write or erase data at the byte level. The device supports standard command sets for reading, writing, and erasing, ensuring compatibility with various microcontrollers.
With its endurance of up to 1,000,000 write/erase cycles and a data retention of up to 20 years, the AM29F040B is reliable for embedded systems, consumer electronics, and telecommunications applications. Its architecture allows for concurrent read and write operations, improving overall system performance.

Package

The AM29F040B-90JF is packaged in a 32-pin PLCC (Plastic Leaded Chip Carrier) format.

Pinout

The AM29F040B-90JF is a 4 Megabit (512 K x 8) flash memory chip with a pin count of 32. It is part of the Am29F040 family of devices, featuring a dual 8-bit data bus.
Pin Functions:
1. Address Pins (A0-A18): Used for addressing the memory locations.
2. Data Pins (DQ0-DQ7): 8-bit data input/output.
3. Chip Enable (CE): Activates the memory chip.
4. Output Enable (OE): Enables data output.
5. Write Enable (WE): Controls write operations.
6. Reset (RESET): Resets the device.
7. Common Ground (GND): Ground reference.
8. Power Supply (VCC): Provides the operating voltage.
9. Byte/Word Select (B/W): Selects between byte or word mode.
10. Program/Erase Status (D/Q): Indicates the status of programming and erasing.
This device is primarily used in embedded systems for firmware storage.

Manufacturer

The AM29F040B-90JF is manufactured by Advanced Micro Devices, Inc. (AMD), a multinational semiconductor company based in Santa Clara, California. AMD is known for producing a range of computing and graphics technologies, including microprocessors, embedded processors, and flash memory devices. The AM29F040B-90JF is a 4 Megabit (512 K x 8) flash memory device, typically used in applications such as embedded systems and consumer electronics. AMD has a significant presence in both the consumer and enterprise markets, competing with other major companies in the semiconductor industry, notably Intel and NVIDIA. Founded in 1969, AMD has evolved from primarily producing memory chips to becoming a key player in high-performance computing and graphics solutions.

Application

The AM29F040B-90JF is a 4 Mbit Flash memory chip commonly used in embedded systems, telecommunications, consumer electronics, and automotive applications. Its applications include firmware storage, boot code, and configuration data in devices such as routers, industrial controllers, and medical equipment. The chip's ability to perform in-system programming and its durability make it suitable for systems requiring reliable non-volatile memory solutions.

Equivalent

The AM29F040B-90JF is a 4Mb (512KB x8) flash memory chip. Equivalent products include:
1. Intel 28F040
2. ST M29F040
3. Cypress CY27C040
4. Microchip 25F040
Ensure compatibility in terms of pin configuration, voltage, and timing specifications when selecting alternatives.