Winbond Electronics Corporation W66CP2NQUAGJ TR

Overview

W66CP2NQUAGJ TR from Winbond is a 2Gb LPDDR4 SDRAM in WFBGA-200 package, operating at 1.1V core/interface voltage with 4266 Mbps data rate per pin (2133 MHz clock), supporting 16-bit bus width and dual-die-package architecture for mobile and embedded applications requiring high bandwidth and low power.

For engineers reviewing the W66CP2NQUAGJ TR datasheet, W66CP2NQUAGJ TR pinout, W66CP2NQUAGJ TR application, or W66CP2NQUAGJ TR equivalent, this page delivers verified LPDDR4 timing parameters, ball assignment mapping, mode register configuration, VREF training support, and dual-rank DDP topology details critical for memory subsystem design and signal integrity validation.

Technical Context

The W66CP2NQUAGJ TR implements LPDDR4 JEDEC JESD209-4 standard compliance with dual-die-package (DDP) configuration, enabling 2Gb density via two stacked 1Gb dies sharing a single 200-ball WFBGA footprint. It supports 8 banks per die, 16-bit prefetch, and burst lengths of BL16/BL32.

It features programmable mode registers (MR0–MR40), CA/DQ VREF training, command bus training, write leveling, read DQ calibration, ZQ calibration, and Partial Array Self-Refresh (PASR) - all essential for high-speed mobile SoC interface alignment and thermal-aware power management.

Key Specifications

Pinout & Package

W66CP2NQUAGJ TR uses a 200-ball Wafer-Level Fine-Pitch Ball Grid Array (WFBGA) package with 0.65 mm ball pitch, optimized for mobile PCB layouts requiring minimal board area and controlled impedance routing. Pinout follows Dual-Die-Package (DDP) WFBGA-200 assignment per datasheet Section 4.2.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LPDDR4 memory applications.

Compared with MT53E256M16D2DS-046 and K4E6E304EC-EGCG, the W66CP2NQUAGJ TR provides balanced performance with native PASR, CA/DQ VREF training, and thermal offset compensation - making it optimal for thermally dynamic mobile and edge applications where power efficiency and signal integrity co-design are prioritized over maximum speed or lowest bill-of-materials cost.

Availability

W66CP2NQUAGJ TR is available at Aetrix Electronics and suitable for smartphone application processors, automotive infotainment systems, industrial edge AI modules, and tablet SoC designs requiring stable component supply, long-term lifecycle support, and JEDEC-compliant LPDDR4 interoperability.

Supply support for W66CP2NQUAGJ 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 NOR/NAND Flash, RAM, and trusted computing ICs, with global manufacturing and quality certifications.

The W66CP2NQ series targets mobile and embedded LPDDR4 memory applications, designed to deliver JEDEC-compliant performance, thermal resilience, and advanced calibration features for SoC memory subsystems in space-constrained, power-sensitive devices.

FAQ

What is the exact density and organization of the W66CP2NQUAGJ TR?

The W66CP2NQUAGJ TR is a 2Gb LPDDR4 SDRAM organized as 256M words × 8 bits (x8) per die, implemented in Dual-Die-Package (DDP) configuration. This yields effective 256M × 16 (x16) operation with shared command/address and separate DQ buses per die, all within a single WFBGA-200 package. The device does not support x32 or x4 configurations.

Does the W66CP2NQUAGJ TR support LPDDR4X voltage modes?

No, the W66CP2NQUAGJ TR operates exclusively at 1.1V for both core and I/O supply and does not support the 0.6V Vddq low-voltage mode defined in LPDDR4X. It is fully compliant with LPDDR4 JESD209-4 but lacks LPDDR4X-specific features such as adaptive I/O voltage scaling or extended low-power states beyond standard LPDDR4 self-refresh and power-down modes.

What training sequences are mandatory during W66CP2NQUAGJ TR initialization?

Mandatory training sequences for the W66CP2NQUAGJ TR include CA VREF training, DQ VREF training, command bus training, write leveling, and RD DQ calibration. These are required before normal operation to establish valid timing margins at 4266 Mbps. The device does not support skip-mode or partial training - all five sequences must complete successfully per JEDEC initialization flow.

Is the W66CP2NQUAGJ TR pin-compatible with W66BP6NB?

No, the W66CP2NQUAGJ TR is not pin-compatible with W66BP6NB. Although both use WFBGA-200 packages, W66BP6NB is a 4Gb LPDDR4 device with different internal bank structure, timing requirements, and ball function assignments - particularly in CA bus encoding and DQ group mapping. Interchangeability would require full PCB redesign and firmware revalidation.

What thermal management features does the W66CP2NQUAGJ TR include?

The W66CP2NQUAGJ TR integrates a calibrated on-die temperature sensor and thermal offset compensation logic that adjusts timing parameters (e.g., tRFC, tRRD) and VREF levels based on real-time die temperature. This enables stable operation across -25°C to +85°C without external thermal monitoring circuitry, and supports PASR activation thresholds tied directly to measured junction temperature.