Winbond Electronics Corporation W25Q64JVSTIM

Overview

W25Q64JVSTIM from Winbond is a 64M-bit (8MB) serial NOR flash memory IC supporting Standard, Dual, and Quad SPI interfaces with 133MHz clock rate, 4KB uniform sector erase granularity, and hardware write protection via /WP and /HOLD pins - used for code storage, XIP execution, and firmware parameter retention in space-constrained embedded systems.

For engineers reviewing the W25Q64JVSTIM datasheet, W25Q64JVSTIM pinout, W25Q64JVSTIM application, or W25Q64JVSTIM equivalent, this page delivers verified pin functions, JEDEC-compliant ID support, Quad Enable bit configuration, 20-year data retention, and package-specific reset capability - critical for boot reliability, secure firmware updates, and low-power IoT designs.

Technical Context

The W25Q64JVSTIM implements a SPI-compatible command set with three operational modes: Standard (DI/DO), Dual (IO0/IO1), and Quad (IO0–IO3), where Quad mode requires non-volatile QE bit setting in Status Register-2. Its architecture includes a 256-byte page buffer, 2,048 erasable 4KB sectors, and 128 erasable 64KB blocks.

It integrates volatile/non-volatile status register bits for block protection (BP2–BP0, TB, SEC, CMP), security registers (3×256B), SFDP register for discoverable parameters, and supports Erase/Program Suspend & Resume - enabling concurrent background operations without halting host communication.

Key Specifications

Pinout & Package

W25Q64JVSTIM is supplied in an 8-pin SOIC 208-mil package (Package Code SS), with pin 1 = /CS, pin 2 = DO (IO1), pin 3 = /WP (IO2), pin 4 = GND, pin 5 = DI (IO0), pin 6 = CLK, pin 7 = /HOLD or /RESET (IO3), pin 8 = VCC. The /HOLD function is active-low and disabled in Quad mode when IO3 is repurposed.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MX25L6433FZNI-10G and S25FL164K0XMFI010, W25Q64JVSTIM delivers highest SPI throughput (133 MHz), integrated SFDP for plug-and-play configuration, and broader temperature range - making it optimal for new designs prioritizing boot speed, firmware agility, and industrial-grade robustness.

Availability

W25Q64JVSTIM is available at Aetrix Electronics and suitable for industrial control, automotive infotainment, medical diagnostics, and smart home gateway applications requiring stable component supply, long-term lifecycle assurance, and qualified sourcing.

Supply support for W25Q64JVSTIM 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 company specializing in specialty memory solutions including NOR/NAND flash, SRAM, and mobile DRAM - serving industrial, automotive, and consumer markets since 1987.

The W25Q series targets embedded systems needing high-speed, secure, and space-efficient serial flash - designed specifically for code shadowing, XIP execution, and firmware update resilience in resource-constrained environments.

FAQ

What is the maximum SPI clock frequency supported by W25Q64JVSTIM?

W25Q64JVSTIM supports up to 133 MHz for Standard, Dual, and Quad SPI operations. In Quad I/O mode using Fast Read Quad I/O (EBh), this yields an effective throughput of 532 MHz (133 MHz × 4). This specification is validated across the full operating temperature range (–40°C to +85°C) and applies to the 8-pin SOIC 208-mil package variant designated as W25Q64JVSTIM.

Does W25Q64JVSTIM include hardware reset functionality?

No, W25Q64JVSTIM in the 8-pin SOIC 208-mil package (SS) does not include a dedicated hardware /RESET pin. Pin 7 is configured as /HOLD only. Hardware reset is available only on SOIC-16 (SF) and TFBGA (TB/TC) packages. For W25Q64JVSTIM, system-level reset must be implemented via software sequence (66h followed by 99h) or external power cycling.

How is Quad SPI mode enabled on W25Q64JVSTIM?

Quad SPI mode on W25Q64JVSTIM is enabled by setting the Quad Enable (QE) bit in Status Register-2 (SR2) to '1'. This is a non-volatile bit; once written, it persists after power cycle. When QE=1, pins /WP (pin 3) and /HOLD (pin 7) become IO2 and IO3 respectively, completing the 6-wire Quad interface. The W25Q64JVSTIM datasheet specifies that QE must be set before issuing Quad instructions like 6Bh or EBh.

What package type corresponds to the part number W25Q64JVSTIM?

W25Q64JVSTIM uses the 8-pin SOIC 208-mil package (Package Code SS), with body dimensions of 5.3 mm × 5.3 mm and standard lead pitch. This package is RoHS-compliant, halogen-free, and rated for industrial temperature operation (–40°C to +85°C). The "STIM" suffix explicitly denotes this SOIC 208-mil variant per Winbond's ordering nomenclature.

Can W25Q64JVSTIM be used for Execute-in-Place (XIP) applications?

Yes, W25Q64JVSTIM supports Execute-in-Place (XIP) directly from Quad SPI interface, enabling microcontrollers to fetch and execute code without copying to RAM. Its 133 MHz clock and Fast Read Quad I/O (EBh) instruction deliver up to 532 Mbps effective bandwidth - sufficient for real-time XIP in Cortex-M and RISC-V based designs. XIP performance is further enhanced by uniform 4KB sectors and erase suspend/resume capability.