Winbond Electronics Corporation W25Q64JVTBJM

Overview

W25Q64JVTBJM from Winbond is a 64M-bit (8MB) serial NOR flash memory IC supporting Dual/Quad SPI, QPI, and Double Transfer Rate (DTR) read modes. It operates from 2.7V to 3.6V, delivers up to 133MHz SPI clock rate (532MHz equivalent in Quad I/O), features 4KB uniform sectors, 100K program-erase cycles per sector, and 20-year data retention. It is used for code execution-in-place (XIP), firmware storage, and parameter logging in industrial microcontroller systems.

For engineers reviewing the W25Q64JVTBJM datasheet, W25Q64JVTBJM pinout, W25Q64JVTBJM application, or W25Q64JVTBJM equivalent, key selection criteria include DTR-enabled high-speed read performance, hardware write protection via /WP and /HOLD pins, JEDEC-compliant SFDP register support, and compatibility with XIP-capable MCU boot loaders requiring continuous read mode with ≤8-clock instruction overhead.

Technical Context

The W25Q64JVTBJM implements a flexible SPI-compatible interface with configurable operation modes: Standard SPI (4-wire), Dual SPI (2 I/O lines), Quad SPI (4 I/O lines), and QPI (4-bit command/address/data bus). Its architecture supports both volatile and non-volatile status register bits-including Quad Enable (QE), Block Protect (BP2–BP0), and HOLD/RST function select-enabling runtime reconfiguration of pin roles without reset.

It integrates three 256-byte security registers with OTP lock capability, a 64-bit unique ID, and full JEDEC JESD216-compliant SFDP register for automatic configuration discovery. Erase/program suspend-resume functionality allows background operations during active reads, critical for real-time firmware update scenarios.

Key Specifications

Pinout & Package

W25Q64JVTBJM uses the 8-pin WSON 6×5-mm package (package code ZP), with exposed pad for thermal dissipation. Pin functions are shared across SPI modes: /CS, CLK, DI (IO0), DO (IO1), /WP (IO2), /HOLD (IO3), GND, and VCC.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial NOR flash applications.

Compared with MX25L6433FZNI-10G and S25FL164K0XMFI010, the W25Q64JVTBJM uniquely delivers DTR-enabled 532 MB/s throughput, JEDEC SFDP v1.6 auto-configuration, and unified pin-mapped support for SPI/QPI/DTR - enabling single-BOM flexibility across performance tiers without layout changes.

Availability

W25Q64JVTBJM is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, and automotive ADAS applications requiring stable component supply, long-term lifecycle assurance, and guaranteed traceable sourcing.

Supply support for W25Q64JVTBJM includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Winbond Electronics is a Taiwan-based semiconductor manufacturer specializing in specialty memory solutions, including serial NOR/NAND flash, RAM, and mobile DRAM.

The W25Q64JVTBJM belongs to Winbond's W25Q64JV-DTR family, designed specifically for high-reliability embedded systems needing fast, secure, and flexible code storage with industrial temperature support and advanced interface modes.

FAQ

What interface protocols does the W25Q64JVTBJM support?

The W25Q64JVTBJM supports Standard SPI, Dual SPI, Quad SPI, Quad Peripheral Interface (QPI), and Double Transfer Rate (DTR) read modes. All are enabled within the same physical package via status register configuration - no hardware changes are needed to switch between modes. The W25Q64JVTBJM achieves 133 MHz clock rates in SPI mode and up to 532 MB/s effective throughput in Quad I/O DTR mode.

Does the W25Q64JVTBJM have hardware write protection pins?

Yes, the W25Q64JVTBJM includes dedicated /WP (Write Protect) and /HOLD pins that provide hardware-level control over status register writes and ongoing operations. When /WP is asserted low, it prevents modification of block protect bits and status register locks - independent of software commands. This feature is active in Standard and Dual SPI modes; in Quad SPI mode, /WP becomes IO2 after Quad Enable (QE) is set.

What is the significance of the "DTR" in W25Q64JVTBJM's part number?

The "DTR" suffix in W25Q64JVTBJM indicates Double Transfer Rate capability - meaning the device samples data on both rising and falling edges of the serial clock during read operations. This doubles effective bandwidth without increasing clock frequency, enabling faster code shadowing and XIP execution. DTR is supported in Fast Read Dual I/O (BDh), Fast Read Quad I/O (EDh), and Burst Read with Wrap (0Eh) instructions.

Can the W25Q64JVTBJM be used for execute-in-place (XIP) applications?

Yes, the W25Q64JVTBJM is explicitly designed for XIP operation. Its Continuous Read Mode requires only 8 clock cycles to initiate a read, and Quad I/O DTR instructions deliver sustained bandwidth up to 532 MB/s - sufficient for real-time execution of ARM Cortex-M or RISC-V application code directly from flash. The W25Q64JVTBJM also supports wrap-around burst reads to optimize cache line fills.

How does the W25Q64JVTBJM handle power-down and wake-up sequences?

The W25Q64JVTBJM supports ultra-low-power mode with typical current draw of <1 µA in power-down state. Wake-up is initiated by driving /CS low after VCC stabilizes; the device automatically refreshes internal registers and enters standby mode. Power-up timing requires /CS to remain high until VCC reaches 2.7 V, and /CS must transition low-to-high before first instruction - behavior enforced by internal power-on reset circuitry in the W25Q64JVTBJM.