Description
The AT25SF321B is a member of our standard class code and data storage solutions designed for 3V systems in which program code is shadowed from Flash memory into embedded or external RAM for execution.
The architecture includes erase block sizes that are optimized to meet the needs of today's code and data storage applications and three security register pages for unique device serialization, system-level Electronic Serial Number (ESN) storage, locked key storage, etc.
- Universally compatible pinout and command set
- Standard block architecture
- Supports Dual I/O, Quad I/O and XiP operation
- Continuous read, wrap and burst modes for XiP
Parameters
| Attributes | Value |
|---|---|
| Memory Class | Standard Flash |
| Memory Density | 32 |
| Operating Voltage Range (V) | 2.7 - 3.6 |
| Speed | 108 MHz |
| Interface | Single, Dual, Quad SPI |
| Temp. Range (°C) | -40 to +85°C |
| Deep Power Down (µA) | 1 |
| Read Current (mA) | 3.3 |
| Key Benefit | Standard features |
Application Block Diagrams
 | Level 2 EV Charger Modular EVSE system with advanced connectivity for efficient EV charging and management. |
 | Smart HMI System with Voice & Display Interfaces Smart HMI system with 32-bit MCU supports GUI, voice I/O, IoT connectivity, and fast development tools. |
 | Robot Vacuum Cleaner This smart robot vacuum features environment mapping, anti-drop, obstacle detection, auto-recharge, app control. |
 | 1-Phase Power Meter Flexible, MCU-controlled, high-end 1-phase power meter for greater control and scalability. |
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Simulation Models
Partner Solutions
- Model - IBIS
- Model - Verilog
Development ToolµISP is a compact standalone and universal solution, specifically designed for production environments, based on Algocrafts WriteNow! Technology. This is a standard tool for many families and devices and supports multi programming protocol (JTAG, SPI, UART, DAP, SWD, I2C, BDM, custom protocol, etc).Provided By: Algocraft Srl- Development ToolWriteNow! Series of In-System Programmers is a breakthrough in the programming industry. The programmers support a large number of devices (microcontrollers, memories, CPLDs and other programmable devices) from various manufacturers and have a compact size for easy ATE/fixture integration. They work in standalone or connected to a ...Provided By: Algocraft Srl
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Make sure all keywords are spelled correctly.
Try fewer, different, or more general terms to vary your search.
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- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
- Model - IBIS
- Model - Verilog
Simulation Models (2)
- Development ToolµISP is a compact standalone and universal solution, specifically designed for production environments, based on Algocrafts WriteNow! Technology. This is a standard tool for many families and devices and supports multi programming protocol (JTAG, SPI, UART, DAP, SWD, I2C, BDM, custom protocol, etc).Provided By: Algocraft Srl
- Development ToolWriteNow! Series of In-System Programmers is a breakthrough in the programming industry. The programmers support a large number of devices (microcontrollers, memories, CPLDs and other programmable devices) from various manufacturers and have a compact size for easy ATE/fixture integration. They work in standalone or connected to a ...Provided By: Algocraft Srl
Partner Solutions (2)
Level 2 EV Charger Reference Design
This modular electric vehicle supply equipment (EVSE) system simplifies development and accelerates deployment of smart electric vehicle (EV) chargers. Our controller board stacks over a power board and supports flexible 1-phase to 3-phase charging up to 22kW. We integrate Wi-Fi, Bluetooth® Low... Read More
Support Communities
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AT25SF321B and AT25SF321 Programming
Is there a difference between AT25SF321B and AT25SF321 other than speed and operating voltage and with a programmer that can program AT25SF321, can I program AT25SF321B too?
Sep 22, 2022 -
Detecting #WP pin state on AT25FF321A and AT25SF321B
For both the AT25FF321A and AT25SF321B that are configured for hardware protection with the #WP pin (SRP1,0 = 01) what is the lowest impact way of detecting the state of the #WP pin (ability to write to status registers)? As most of the R/W status register ...
Nov 14, 2021 -
AT25SF321B volatile status register bits
Which bits in the status register of the AT25SF321B are volatile, and which are non-volatile? The datasheet talks about volatile and non-volatile bits, but I can't find a table of which ones are which. In particular, is the Quad Enable bit volatile or non volatile (i.e ...
Sep 11, 2023
Knowledge Base
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"B" suffix NOR flash Part numbers
... a newer part than a part without the suffix "B". It has enhanced features. Example AT25SF321 vs AT25SF321B ==> AT25SF321B is a newer part than AT25SF321. AT25SF321B has new additional commands and improved performance. AT25SF321B has a 108 MHz Maximum Operating Frequency vs 104 MHz for AT25SF321 AT25SF321B Operating voltages 2 ...
Apr 13, 2023
Support Communities
