Introduction to W25Q128JVSIQ NOR Flash Memory Chip | Winbond 128M-bit SPI Flash Memory
Product Overview
W25Q128JVSIQ is a 128M-bit NOR Flash memory chip from Winbond Electronics, which adopts the standard SPI (Serial Peripheral Interface) bus protocol. And it supports Dual/Quad SPI mode, providing a higher data throughput rate. This chip is equipped with a rich instruction set and protection mechanism, featuring page programming, sector erasing, chip erasing, power failure protection and other functions. It is widely applicable to embedded systems, boot storage, firmware upgrades, IoT terminals, etc.
Main technical parameters
Project parameters
Storage capacity: 128M-bit (16MB)
Interface types: SPI/Dual SPI/Quad SPI
The working voltage is 2.7V to 3.6V
Maximum reading frequency: 104 MHz (SPI), 80 MHz (QSPI)
The page size is 256 Bytes
Sector size: 4KB (Supports 64KB block erasure)
The number of erase and write cycles is ≥100,000 times
The data is maintained for ≥20 years
Operating temperature: -40°C to +85°C
Package type 8-SOIC (WSON package is also optional)
Product packaging code: SI = SOIC, Q = 208 mil wide body
Product characteristics
✅ supports multiple SPI protocols: Standard, Dual SPI, Quad SPI, to meet the speed requirements of different controllers
✅ Low power standby mode: Deep power-off current is less than 1μA, saving system energy
✅ Page programming and sector erasure: Supports 256-byte programming and multiple erasure units of 4KB/32KB/64KB
✅ Continuous read mode: no need to send commands multiple times, greatly improves reading efficiency
✅ Write protection: Supports write locking to enhance firmware security
✅ Power-off data retention strong: supports 20 years of data retention with high reliability
Pin diagram and Pin Definition (8-SOIC package)
Pin number name Function description
1 /CS chip enable (low efficiency) 2 DO (IO1) Data output /IO 3 /WP (IO2) Write protection input /IO 4 GND Grounding 5 DI (IO0) data input /IO 6 CLK clock input 7 /HOLD (IO3) Pause input /IO 8 VCC power input (2.7V - 3.6V)
Typical application scenarios
📱 Embedded microcontroller Bootloader ROM
🌐 IoT device configuration parameters and firmware upgrade storage
📦 Configuration storage for consumer electronics such as set-top boxes, smart routers, etc
🖥️ BIOS chip, graphics card firmware and other firmware memory
🚗 Automotive instrument panels, entertainment systems, ADAS modules, etc. require NOR memory chips with high reliability
Equivalent models and compatible substitutes
Model and brand comparison explanation
The MX25L12835FZNI-10G Macronix pins and functions are compatible S25FL128SAGMFI010 Cypress/Infineon is also a 128M-bit QSPI NOR Flash The performance of EN25Q128A EON Silicon is similar, but some instruction sets are different GD25Q128C GigaDevice is a domestic alternative option with high cost performance The AT25DF128A is compatible with the Adesto/Microchip interface, but the voltage is slightly different ✅ Alternative suggestion: It is necessary to confirm that the master controller supports and is compatible with the instruction set, especially for startup applications.
Encapsulation options
W25Q128JVSIQ: 8-SOIC, 208mil wide-body package Optional packages: WSON-8, TSOP-16, BGA (specifically selected according to the application space)
Summary
W25Q128JVSIQ is a stable, high-speed and low-power NOR Flash storage solution. With its rich interface support and high reliability, it has been widely deployed in the fields of industry, automobiles and consumer electronics, and is one of the ideal external storage options for current mainstream embedded systems.
