Winbond Electronics Corporation W25Q64JWZPIQ TR

Overview

W25Q64JWZPIQ TR from Winbond is a 1.8V, 64M-bit (8MB) serial NOR flash memory with Dual/Quad SPI interface, organized into 32,768 × 256-byte pages and supporting 4KB/32KB/64KB erase granularity. It delivers up to 133MHz Quad I/O clocking for 532Mbps effective throughput and features hardware /WP and /HOLD pins, 64-bit unique ID, and three 256-byte security registers - deployed in embedded boot code storage and firmware update systems.

For engineers reviewing the W25Q64JWZPIQ TR datasheet, W25Q64JWZPIQ TR pinout, W25Q64JWZPIQ TR application, or W25Q64JWZPIQ TR equivalent, this page provides verified pin functions, JEDEC-compliant identification, Quad Enable (QE) bit configuration, sector-level write protection modes, and real-world XIP (execute-in-place) timing behavior under 1.7–1.95V supply.

Technical Context

The W25Q64JWZPIQ TR implements a standard SPI bus (Mode 0/3) with full backward compatibility, while enabling high-speed data access via Dual SPI (IO0/IO1) and Quad SPI (IO0–IO3) protocols - requiring non-volatile QE bit setting in Status Register-2. Its command set includes Fast Read Quad I/O (EBh), Quad Input Page Program (32h), and Erase/Program Suspend (75h/7Ah) for concurrent background operations.

Internal architecture integrates a 256-byte page buffer, SFDP register for discoverable parameters, volatile/non-volatile status bits (BP2–BP0, TB, SEC, CMP, SRP), and hardware-based protections including /WP pin assertion, individual block lock (36h), and OTP-secured security registers - all operating within -40°C to +85°C across 1.7–1.95V supply.

Key Specifications

Pinout & Package

W25Q64JWZPIQ TR uses an 8-pin WSON 6×5-mm package (Package Code ZP), with exposed pad for thermal dissipation and no internal pull-ups on /CS or /WP. Pin functions are shared across SPI modes: IO0/DI and IO1/DO serve Standard/Dual SPI; IO2 (/WP) and IO3 (/HOLD) become active in Quad mode when QE=1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with W25Q64JWZPIQ TR, MX25L6433FZNI-10G trades voltage compatibility and sector granularity for mature 3.3V support, while S25FL164K0XMFI010 sacrifices peak throughput and pin compatibility for broader vendor toolchain alignment - neither offers identical 1.8V/133MHz/4KB-sector combination.

Availability

W25Q64JWZPIQ TR is available at Aetrix Electronics and suitable for industrial control panels, automotive telematics modules, and medical edge devices requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for W25Q64JWZPIQ TR 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 SPI NOR/NAND flash and DRAM, with over 30 years of foundry-aligned manufacturing experience.

The W25Q series targets embedded systems needing high-reliability, low-voltage serial flash for boot code, firmware, and configuration storage - designed specifically for space-constrained, power-sensitive applications in industrial and automotive environments.

FAQ

What is the correct power-up sequence for reliable initialization of the W25Q64JWZPIQ TR?

The W25Q64JWZPIQ TR requires VCC to stabilize within 1.7–1.95V before /CS transitions from high to low; /CS must remain high for ≥100 µs after VCC reaches regulation. A pull-up resistor on /CS ensures proper deselection during ramp-up. Failure to meet this timing may cause spurious writes or failed status register reads - confirmed in Section 9.3 of the datasheet.

Does the W25Q64JWZPIQ TR support Quad SPI mode out-of-the-box, or does it require configuration?

The W25Q64JWZPIQ TR requires explicit enabling of Quad SPI mode via the non-volatile Quad Enable (QE) bit in Status Register-2 (bit 1). This bit must be set using Write Status Register-2 (31h) instruction; default state is QE=0. Until configured, only Standard and Dual SPI are functional - verified in Sections 4.2 and 7.1.

Can the /HOLD pin on the W25Q64JWZPIQ TR be used simultaneously with Quad SPI operation?

No - when QE=1, the /HOLD pin (Pin 7) is reassigned as IO3 for Quad SPI communication and cannot function as a hold signal. The hold feature is only available in Standard and Dual SPI modes. This functional conflict is documented in Note 2 of Section 3.3 and Section 4.4 of the datasheet.

How is hardware write protection implemented on the W25Q64JWZPIQ TR, and what memory regions does it cover?

Hardware write protection on the W25Q64JWZPIQ TR uses the active-low /WP pin in conjunction with Block Protect (BP2–BP0), Top/Bottom (TB), and Complement (CMP) bits in Status Register-1. When /WP is asserted low, it locks status register writes and - depending on BP/TB/CMP settings - protects sectors from program/erase across 4KB to full-chip ranges. Details are in Section 6.5 and Table 7-1.

Is the 64-bit Unique ID in the W25Q64JWZPIQ TR factory-programmed and permanently unchangeable?

Yes - the 64-bit Unique ID is laser-trimmed at wafer sort and stored in one-time-programmable (OTP) memory. It is read-only via instruction 4Bh and cannot be altered post-manufacture. This ID is guaranteed unique across all W25Q64JW units and serves as a hardware root-of-trust anchor - specified in Section 1.1 and Table 8-1.