Renesas Electronics Corporation_AT25DF021-SSHF-B
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Renesas Electronics Corporation
AT25DF021-SSHF-B

774-AT25DF021-SSHF-B
PDF Datasheet
IC FLASH 2MBIT SPI 50MHZ 8SOIC

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Tech Specifications

Clock Frequency
50 MHz
Operating Temperature
-40°C ~ 85°C (TC)
Memory Interface
SPI
ECCN
EAR99
Memory Organization
256K x 8
Mounting Type
Surface Mount
Memory Type
Non-Volatile
Product Status
Obsolete
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AT25DF021-SSHF-B Description

AT25DF021-SSHF-B Description

The AT25DF021-SSHF-B is a 2Mbit Serial Flash memory IC designed by Renesas Electronics Corporation. This device features a SPI (Serial Peripheral Interface) memory interface and operates at a clock frequency of 50 MHz. It is organized as 256K x 8, providing a memory size of 2Mbit. The AT25DF021-SSHF-B is designed for surface mount applications and is housed in a tube package. It supports a supply voltage range of 2.3V to 3.6V and offers a write cycle time of 7µs for word operations and 5ms for page operations. The product is classified under ECCN EAR99 and HTSUS 8542.32.0071. It has a moisture sensitivity level (MSL) of 3, which allows for 168 hours of exposure. Despite its obsolescence status, the AT25DF021-SSHF-B remains a reliable choice for various memory-intensive applications.

AT25DF021-SSHF-B Features

  • High-Speed Performance: With a clock frequency of 50 MHz, the AT25DF021-SSHF-B ensures fast data transfer rates, making it suitable for applications requiring rapid access to stored data.
  • SPI Interface: The SPI memory interface allows for easy integration with microcontrollers and other digital systems, facilitating straightforward communication and control.
  • Memory Organization: The 256K x 8 organization provides a balanced approach to memory density and access speed, offering 2Mbit of storage capacity.
  • Write Cycle Efficiency: The write cycle times of 7µs for word operations and 5ms for page operations ensure efficient data writing, minimizing latency in data-intensive tasks.
  • Voltage Flexibility: The supply voltage range of 2.3V to 3.6V provides flexibility in power supply design, accommodating a variety of power sources.
  • Surface Mount Compatibility: The surface mount mounting type ensures compatibility with modern PCB designs, facilitating compact and reliable system integration.
  • Moisture Resistance: The MSL 3 rating allows for 168 hours of exposure, enhancing the device's durability in varying environmental conditions.

AT25DF021-SSHF-B Applications

The AT25DF021-SSHF-B is ideal for applications that require reliable and efficient storage solutions. Its high-speed SPI interface and 2Mbit capacity make it suitable for:

  • Embedded Systems: Providing non-volatile storage for firmware and configuration data in embedded devices.
  • Consumer Electronics: Storing critical data in devices such as digital cameras, media players, and smart home appliances.
  • Industrial Control Systems: Offering robust storage for control algorithms and operational parameters in industrial environments.
  • Telecommunications: Storing configuration data and firmware updates in communication devices and infrastructure.

Conclusion of AT25DF021-SSHF-B

The AT25DF021-SSHF-B from Renesas Electronics Corporation is a versatile and reliable Serial Flash memory IC. Its high-speed performance, efficient write cycle times, and flexible voltage range make it a standout choice for applications requiring fast and dependable storage solutions. Despite its obsolescence, the AT25DF021-SSHF-B continues to offer significant advantages over similar models, particularly in its SPI interface compatibility and surface mount design. This product remains a valuable option for engineers and designers seeking a robust memory solution for their projects.

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