W25Q16FWSSIQ TR

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The W25Q16FWSSIQ TR is part of the Winbond SPI Serial Flash Memory family. These products are designed to provide a cost-effective and flexible solution for system memory applications. It enables simple and reliable data transfers in SPI (Serial Peripheral Interface) mode. The W25Q16FWSSIQ TR is a 16Mb (2 Mbytes), 3.3V single supply SPI Flash with advanced write protection schemes. Winbond’s SPI Flash family is ideally suited for a wide variety of serial memory applications, such as data storage, code storage, data logging, program code shadowing and boot functions.

Memory

W25Q16FWSSIQTR is designed based on a NAND Flash memory array, which gives it faster erase and write speeds than NOR Flash memory. It operates at clock frequencies of up to 100MHz and utilizes simple commands such as Read, Program, Erase, and Reset.

The memory core is equipped with pin WA and pin WP, which indicate active and write-protected states. It supports multiple I/O operations, including page programming and erase operations.

The memory performance is highly robust with temperature range of -55℃ to +125℃, data retention of 60 years and maximum endurance cycles of 100,000 (program/erase cycles).

W25Q16FWSSIQ TR application field

The W25Q16FWSSIQTR can be used in a wide range of applications such as industrial, consumer, automotive, medical and storage solutions. The device can be used as code storage, data logging, data storage, and program code shadowing. Some applications include solid state file systems, security and system configuration storage, automotive infotainment, home appliance firmware update, datalogging, medical recordkeeping and more.

W25Q16FWSSIQ TR working principle

It utilizes the SPI (Serial Peripheral Interface) protocol to communicate with the host controller. The memory module has three programmable control lines (chip select, serial clock and serial data-in) that are used to control data transfers. Each operation is initiated by a transaction, which consists of an instruction to execute, followed by command and address bytes and finally, data bytes.

The commands allow programming, reading, erasing and resetting the parts. Additionally, the parts support additional operations for security, system configuration, and file systems. Read operations always return the data from the addressed location. Program operations (like erase operations) require address and data. There are various methods used to protect the part from unauthorized operation.

In order to run the W25Q16FWSSIQ TR properly, the control logic needs to be provided with a 3.3V voltage source. After this, the minimum programmable control signals need to be provided for the NI-EVM interface. To begin the operation, the device needs to be provided with Instruction Codes (opcode) and its respective data to program or erase.

The device also supports a few test commands such as the Read Device ID, Read Status Register, enables (WREN) and Disables (WRDI). The W25Q16FWSSIQ TR has a block protection feature, which can prevent unwanted writes, erases and programming. This protection is only available when the SRP# and HOLD# are active.

In summary, the W25Q16FWSSIQ TR is an efficient 3.3V serial flash memory device that is specifically designed for industrial, consumer, automotive and other applications. It is integrated with advanced write protection schemes and offers robust performance with wide temperature range and high endurance cycles.

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