Winbond Electronics Corporation W63AH6NBVADI TR

Overview

W63AH6NBVADI TR from Winbond is a 1Gb LPDDR3 SDRAM configured as an 8-bank memory with x16 data width, operating at 1.2V VDDQ and supporting 800–1066 MT/s data rates; it implements on-die termination (ODT), partial array self-refresh (PASR), and CA training for mobile SoC memory interfaces in smartphones and tablets.

For engineers reviewing the W63AH6NBVADI TR datasheet, W63AH6NBVADI TR pinout, W63AH6NBVADI TR application, or W63AH6NBVADI TR equivalent, key selection criteria include LPDDR3-1066 timing compliance, HSUL_12 I/O interface, 1.2V VDDQ operation, ODT programmability, and 96-ball VFBGA package compatibility with mobile platform memory controllers.

Technical Context

This device implements a double-data-rate architecture on both DQ and CA buses, using differential CK_t/CK_c and DQS_t/DQS_c signaling with HSUL_12 driver output characteristics. It supports burst lengths of 8 and 16, auto-precharge, and per-bank refresh to minimize latency overhead in high-throughput mobile workloads.

Command decoding occurs across 10-bit CA bus with dual-edge sampling; mode registers MR0–MR63 define device features including PASR bank/segment masking (MR16/MR17), ODT control (MR11), calibration (MR10/MR40/MR48), and temperature-sensing (MR4). ZQ calibration adjusts RONPU/RONPD and ODT levels dynamically against process/voltage/temperature variation.

Key Specifications

Pinout & Package

W63AH6NBVADI TR uses a 96-ball Very Thin Fine-Pitch Ball Grid Array (VFBGA) package with 0.5 mm ball pitch and 7.5 mm × 13.0 mm body size. Pinout follows JEDEC-standard LPDDR3 ball assignment for x16 configuration.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LPDDR3 memory applications.

Compared with W63AH6NBVADI TR, MT52L1G32D2PF-107 WT:A offers higher per-device bandwidth but demands x32 routing and larger tRFC overhead, while K4E6E304EC-EGCJ provides pin-identical replacement with minor mode register behavioral differences requiring firmware-level verification.

Availability

W63AH6NBVADI TR is available at Aetrix Electronics and suitable for smartphone memory subsystems, tablet DRAM channels, and automotive infotainment platforms requiring stable component supply, JEDEC-compliant LPDDR3 operation, and extended-temperature reliability.

Supply support for W63AH6NBVADI 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, SRAM, and low-power DRAM for mobile and embedded markets.

The W63AH series targets mobile and portable electronics, delivering JEDEC LPDDR3-compliant performance with enhanced power management features like PASR and temperature-aware refresh for battery-constrained devices.

FAQ

What is the maximum supported data rate for W63AH6NBVADI TR?

W63AH6NBVADI TR supports up to 1066 MT/s, corresponding to a 533 MHz clock frequency with double-data-rate transfers. This is validated under VDDQ = 1.2 V, VDD1 = 1.8 V, and operating temperature of 85°C per JEDEC JESD209-3B. The device achieves this rate using HSUL_12 I/O drivers and differential DQS/CK signaling, with timing margins verified across process corners.

Does W63AH6NBVADI TR support on-die termination (ODT)?

Yes, W63AH6NBVADI TR supports programmable ODT via MR11, offering multiple impedance settings (e.g., 34 Ω, 48 Ω, 60 Ω, 120 Ω, 150 Ω) for both read and write operations. ODT is configurable per-bank and can be enabled/disabled dynamically to match line impedance during active transfers, eliminating the need for external termination resistors on DQ/DQS lines.

What package type and dimensions does W63AH6NBVADI TR use?

W63AH6NBVADI TR uses a 96-ball Very Thin Fine-Pitch BGA (VFBGA) package measuring 7.5 mm × 13.0 mm with 0.5 mm ball pitch. The package complies with JEDEC MO-270AC and supports standard reflow profiles for lead-free assembly. Ball assignment matches LPDDR3 x16 layout conventions, enabling direct PCB footprint reuse across compatible devices.

How does W63AH6NBVADI TR implement partial array self-refresh (PASR)?

W63AH6NBVADI TR implements PASR through mode registers MR16 (bank mask) and MR17 (segment mask), allowing software to restrict self-refresh to selected banks or 1/2/4 segments per bank. This reduces IDD6 current by up to 75% compared to full-array self-refresh, directly extending battery life in mobile devices during light background activity without compromising data retention.

Is CA training supported on W63AH6NBVADI TR?

Yes, W63AH6NBVADI TR supports CA training via MR41, MR42, and MR48 to calibrate command/address timing skew relative to CK. The training sequence adjusts internal delays on CA lines to compensate for PCB trace length mismatches, ensuring reliable command decoding at 1066 MT/s. CA training must be executed during initialization after power-up or reset, before normal operation begins.