Winbond Electronics Corporation W25Q256JVCIM TR

Overview

W25Q256JVCIM TR from Winbond is a 256M-bit (32MB) serial NOR flash memory IC supporting standard, dual, and quad SPI interfaces with up to 133 MHz clock frequency, 4KB uniform sector architecture, and hardware write protection via /WP and /HOLD pins. It operates from 2.7V to 3.6V and is used for code execution in place (XIP), firmware storage, and parameter retention in embedded microcontroller systems.

For engineers reviewing the W25Q256JVCIM TR datasheet, W25Q256JVCIM TR pinout, W25Q256JVCIM TR application, or W25Q256JVCIM TR equivalent, key selection criteria include 4-byte addressing support, Quad Enable (QE) bit configuration, JEDEC ID and SFDP register compliance, and compatibility with 8-pad WSON 8×6-mm package layout constraints.

Technical Context

The W25Q256JVCIM TR implements a SPI-compatible serial interface with configurable 3- or 4-byte addressing modes, where 4-byte mode is enabled via B7h instruction and stored in non-volatile ADP bit. Its dual/quad I/O operation requires QE bit (Status Register-2, bit 1) to be set, repurposing /WP and /HOLD as IO2 and IO3.

It features volatile/non-volatile status register bits for block protection (BP3–BP0), top/bottom lock (TB), complement protection (CMP), and security register locks (LB3–LB1), alongside erase/program suspend/resume functionality and three 256-byte OTP-locked security registers.

Key Specifications

Pinout & Package

W25Q256JVCIM TR uses the 8-pad WSON 8×6-mm package (Package Code E), with exposed thermal pad. Pin functions are defined per JEDEC MO-241AC standard and validated per Winbond datasheet Figure 1a.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MX25L25645GMI-10G and S25FL256SAGMFI000, the W25Q256JVCIM TR delivers higher bandwidth (133 MHz vs. ≤104 MHz), native 4-byte addressing without external logic, and JEDEC-compliant SFDP for plug-and-play initialization - critical for fast-boot and secure boot implementations.

Availability

W25Q256JVCIM TR is available at Aetrix Electronics and suitable for industrial HMI firmware storage, automotive telematics boot code, medical device calibration data, and network router configuration archive applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for W25Q256JVCIM 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 manufacturer specializing in specialty memory solutions including NOR/NAND flash, SRAM, and mobile DRAM.

The W25Q series targets high-performance embedded systems requiring reliable, low-power, SPI-based code and data storage with advanced security and flexible addressing - especially where space, pin count, and power budgets are constrained.

FAQ

What is the package type and footprint of W25Q256JVCIM TR?

W25Q256JVCIM TR uses an 8-pad WSON 8×6-mm package (Package Code E) with exposed thermal pad, compliant with JEDEC MO-241AC. It has no /RESET pin - that function is multiplexed with /HOLD on pin 7 and disabled in Quad SPI mode when QE=1. The footprint requires 0.3 mm pitch, 0.4 mm pad width, and thermal pad solder stencil design per Winbond specification.

Does W25Q256JVCIM TR support 4-byte addressing, and how is it enabled?

Yes, W25Q256JVCIM TR supports 4-byte addressing via the B7h instruction to enter mode and E9h to exit. The ADP bit (Status Register-3, bit 0) stores the default power-up address mode non-volatily. When ADP=1, the device powers up in 4-byte mode; when ADP=0, it defaults to 3-byte mode and requires Extended Address Register (C8h/C5h) for >16MB access.

How does the Quad Enable (QE) bit affect pin functionality on W25Q256JVCIM TR?

The QE bit (Status Register-2, bit 1) must be set to 1 to enable Quad SPI operation on W25Q256JVCIM TR. When QE=1, /WP (pin 3) becomes IO2 and /HOLD (pin 7) becomes IO3. If QE=0, those pins retain their hardware protection functions. QE is non-volatile and persists across power cycles unless explicitly cleared.

What security features are implemented in W25Q256JVCIM TR?

W25Q256JVCIM TR includes hardware write protection (/WP pin), top/bottom/complement sector locking (TB, CMP, BP bits), individual sector lock/unlock (36h/39h), global lock (7Eh), three 256-byte OTP-locked security registers (LB1–LB3), and a 64-bit unique ID (4Bh). All protections are enforced at the silicon level and survive power loss.

Can W25Q256JVCIM TR be used for execute-in-place (XIP) applications?

Yes, W25Q256JVCIM TR supports true XIP via Fast Read Quad I/O (EBh) and Quad Peripheral Interface, delivering up to 532 MB/s effective throughput. Its uniform 4KB sectors, low latency random access, and SFDP register enable automatic timing configuration in boot ROMs - making it suitable for direct code execution in microcontrollers with QSPI controllers.