Winbond Electronics Corporation W25Q64JVTCJQ

Overview

W25Q64JVTCJQ from Winbond is a 64M-bit (8MB) serial NOR flash memory IC supporting Standard, Dual, and Quad SPI interfaces. It operates from 2.7V to 3.6V, delivers up to 133MHz clock rate (532MHz equivalent Quad I/O), features uniform 4KB sector erase, and supports XIP (execute-in-place) for embedded code storage in space-constrained microcontroller systems.

For engineers reviewing the W25Q64JVTCJQ datasheet, W25Q64JVTCJQ pinout, W25Q64JVTCJQ application, or W25Q64JVTCJQ equivalent, key selection criteria include Quad SPI timing compliance, hardware write-protect (/WP) and hold (/HOLD) signal support, JEDEC ID and SFDP register accessibility, and compatibility with 8-pin SOIC 208-mil or WSON 6x5-mm footprint requirements.

Technical Context

The W25Q64JVTCJQ 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 enablement in Status Register-2. Its internal architecture includes a 256-byte page buffer, 2,048 erasable 4KB sectors, and dedicated high-voltage generators for program/erase cycles.

It integrates volatile and non-volatile status/configuration registers-including Block Protect (BP2–BP0), Top/Bottom protect (TB), Sector Lock (SEC), and Output Driver Strength (DRV1/DRV0)-and supports hardware reset only on TFBGA/SOIC-16 packages; the /HOLD pin doubles as IO3 in Quad mode and is inactive when QE=1.

Key Specifications

Pinout & Package

W25Q64JVTCJQ is packaged in an 8-pin SOIC 208-mil (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 (QE=1); /RESET is not implemented in this SOIC variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with W25Q64JVTCJQ, MX25L6433FZNI-10G offers higher clock margin but omits /HOLD in SOIC-8, while S25FL064L0XMFI001 trades speed for ECC and HyperBus flexibility-making W25Q64JVTCJQ optimal for cost-sensitive, high-throughput XIP designs requiring hardware suspend and robust security primitives.

Availability

W25Q64JVTCJQ is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive infotainment boot memory, medical diagnostic data logging, smart home gateway configuration storage, and embedded IoT edge node code shadowing requiring stable component supply across multi-year production cycles.

Supply support for W25Q64JVTCJQ 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, PSRAM, and mobile DRAM, serving industrial, automotive, and consumer markets since 1987.

The W25Q series targets embedded systems requiring high-speed, low-power, and secure code/data storage; W25Q64JVTCJQ specifically balances Quad SPI performance, sector-level flexibility, and hardware security for resource-constrained MCUs.

FAQ

What is the maximum supported SPI clock frequency for W25Q64JVTCJQ in Quad I/O mode?

The W25Q64JVTCJQ supports up to 133 MHz for the base SPI clock in Quad I/O mode, delivering an effective data rate of 532 MHz (133 MHz × 4 lines). This is confirmed in the "Electrical Characteristics" section of the official datasheet (Rev. J, p.63), and requires the Quad Enable (QE) bit in Status Register-2 to be set. Signal integrity and PCB layout must meet specified AC timing margins to sustain this rate reliably.

Does W25Q64JVTCJQ support hardware reset via /RESET pin in its SOIC 208-mil package?

No, W25Q64JVTCJQ in the 8-pin SOIC 208-mil package (Package Code SS) does not include a dedicated /RESET pin. As stated in the datasheet (Rev. J, Section 4.6 and Note 1), hardware /RESET is only available on SOIC-16 and TFBGA packages. Pin 7 in this variant is /HOLD (IO3), not /RESET; system-level reset must be handled via software command (66h + 99h) or external logic.

How many program/erase cycles does W25Q64JVTCJQ guarantee per 4KB sector?

W25Q64JVTCJQ guarantees a minimum of 100,000 program/erase cycles per 4KB sector, as specified in the "Features" section (Rev. J, p.4) and verified in "Electrical Characteristics" (p.59). This endurance rating applies to all sectors across the full temperature range (-40°C to +85°C) and is independent of block or chip erase operations.

Can W25Q64JVTCJQ be used for execute-in-place (XIP) applications?

Yes, W25Q64JVTCJQ supports execute-in-place (XIP) directly from Quad SPI interface, enabling ARM or RISC-V MCUs to fetch and execute code without copying to RAM. This is explicitly cited in the "General Descriptions" section (Rev. J, p.4) and enabled by its fast Quad Read instructions (6Bh, EBh) and deterministic access timing-critical for real-time boot and firmware update scenarios.

What package type corresponds to the part number W25Q64JVTCJQ?

W25Q64JVTCJQ uses the 8-pin SOIC 208-mil package (Package Code SS), as defined in Winbond's Ordering Information table (Rev. J, p.75). The "TCJQ" suffix maps to this specific body size and lead finish; it is distinct from WSON, TFBGA, or WLCSP variants denoted by other suffixes like ZP, TB, or BY.