The W25Q128JVSIQ from Winbond Electronics is a high-performance 128-Mbit Serial NOR Flash memory device, belonging to the W25Q128JV series under the SpiFlash trademark. Organized as 16M x 8, it features a standard SPI interface supporting clock frequencies up to 133 MHz for fast data transfer. Operating from a single 2.7V to 3.6V power supply and consuming a maximum of 25 mA during active read, it is designed for low-power, high-reliability applications. With an operating temperature range of -40°C to +85°C, this SMD/SMT component in an SOIC-8 package is ideal for code storage and execution in a wide array of consumer electronics, networking equipment, and industrial systems requiring robust, non-volatile memory solutions.

Key Features

• High-Density Storage: 128 Mbit (16 MB) capacity organized as 16M x 8, providing ample space for application code, data, or multimedia assets.
• High-Speed SPI Interface: Supports clock frequencies up to 133 MHz in Single, Dual, and Quad I/O modes, enabling rapid read operations and efficient system performance.
• Wide Voltage & Temperature Range: Operates from 2.7V to 3.6V and across -40°C to +85°C, ensuring reliability in demanding and variable environmental conditions.
• Low Power Consumption: Features a typical active read current of 10 mA (25 mA max) and deep power-down mode at 1 µA, optimizing energy efficiency for battery-powered devices.
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Technical Specifications

• Product Category: NOR Flash
• Memory Size: 128 Mbit (16 MB)
• Interface Type: SPI (Serial Peripheral Interface)
• Maximum Clock Frequency: 133 MHz
• Organization: 16 M x 8
• Supply Voltage Range: 2.7 V to 3.6 V
• Active Read Current (Max): 25 mA
• Operating Temperature Range: -40°C to +85°C
• Package / Case: SOIC-8
• Mounting Style: SMD/SMT
• RoHS Status: Compliant
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Pin Configuration and Functions

• Pin 1: /CS - Chip Select: Active-low control input to enable and select the device.
• Pin 2: DO (IO1) - Data Output / IO1: Serial data output in Single I/O mode; bidirectional IO1 in Dual and Quad modes.
• Pin 3: /WP (IO2) - Write Protect / IO2: Hardware write protect control; bidirectional IO2 in Dual and Quad modes.
• Pin 4: GND - Ground: Electrical ground connection for the chip.