Winbond Electronics Corporation W63AH6NBVADI

Overview

W63AH6NBVADI from Winbond Electronics is a 1Gb (128MB) LPDDR3 SDRAM with x32 data bus width, 1.2V VDDQ supply, and 8-bank architecture optimized for mobile and embedded applications requiring low-power, high-bandwidth memory. It supports 800MHz data rate (1600Mbps), operates across -25°C to +85°C, and implements on-die termination, partial array self-refresh (PASR), and CA training for signal integrity in compact SoC designs.

For engineers reviewing the W63AH6NBVADI datasheet, W63AH6NBVADI pinout, W63AH6NBVADI application, or W63AH6NBVADI equivalent, this page delivers verified electrical specs, ball assignment, LPDDR3 command timing context, and substitution guidance aligned with JEDEC JESD209-3B compliance.

Technical Context

This device implements a double-data-rate interface on both the Command/Address (CA) bus and DQ/DQS buses, enabling full-speed command delivery and burst transfers without increasing pin count. Its 8-bank architecture supports concurrent row activation and interleaved access to sustain bandwidth under mixed read/write workloads.

It integrates programmable mode registers (MR0–MR63) for configuration of ODT states, PASR masking, temperature-sensing, ZQ calibration, and CA training sequences - all essential for system-level timing closure in mobile APs and application processors interfacing via HSUL_12 I/O standard.

Key Specifications

Pinout & Package

W63AH6NBVADI uses a 136-ball FBGA package (10mm × 12mm × 0.8mm, 0.65mm pitch) with ball grid layout defined in Section 4 ("Ball Assignment") and Table 5.2 ("Ball Configuration") of the official datasheet. Ball functions follow JEDEC LPDDR3 standard mapping for CA[9:0], DQ[31:0], DQS[3:0], CK/CK#, CKE, CS#, RESET#, and VDD/VSS rails.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MT52L1G32D2PF-107 WT:A and K4E6E304EC-EGCF, W63AH6NBVADI offers broader CA training flexibility and simpler MR11 ODT control, making it preferable for new designs targeting controller-agnostic LPDDR3 interoperability and simplified bring-up.

Availability

W63AH6NBVADI is available at Aetrix Electronics and suitable for smartphone application processor memory, automotive infotainment DRAM, and industrial edge AI camera applications requiring stable component supply, long-lifecycle support, and JEDEC-compliant LPDDR3 performance.

Supply support for W63AH6NBVADI 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, automotive, and industrial markets.

The W63AH6NBVADI belongs to Winbond's LPDDR3 product line, engineered specifically for space-constrained, battery-sensitive applications where power efficiency, thermal resilience, and JEDEC-standard interoperability are critical design requirements.

FAQ

What is the maximum operating frequency supported by W63AH6NBVADI?

W63AH6NBVADI supports a maximum data rate of 1600 Mbps, corresponding to an 800 MHz clock frequency (tCK = 1.25 ns). This is specified under recommended operating conditions (VDDQ = 1.2V, TA = +85°C) and assumes proper CA training, ZQ calibration, and signal integrity margins per JEDEC JESD209-3B. The W63AH6NBVADI datasheet defines AC timing parameters-including tRCD, tRP, and tRAS-at this speed.

Does W63AH6NBVADI support partial array self-refresh (PASR)?

Yes, W63AH6NBVADI fully supports PASR via mode registers MR16 (bank mask) and MR17 (segment mask). This allows selective disabling of idle memory banks or segments during self-refresh, reducing IDD6 current by up to 70% compared to full-array refresh. The feature is validated across the full operating temperature range and requires no external hardware changes-only MRW commands during initialization.

What package type and ball count does W63AH6NBVADI use?

W63AH6NBVADI uses a 136-ball Fine-Pitch Ball Grid Array (FBGA) package measuring 10 mm × 12 mm × 0.8 mm with 0.65 mm ball pitch. The ball assignment follows JEDEC LPDDR3 standard layout, including dedicated CA[9:0], DQ[31:0], DQS[3:0], CK/CK#, CKE, CS#, and RESET# terminals. Pinout details are documented in Section 4 of the official Winbond datasheet.

How does W63AH6NBVADI handle on-die termination (ODT)?

W63AH6NBVADI implements programmable ODT with three nominal resistance values (40Ω, 60Ω, 120Ω) controlled via MR11. ODT is configurable per DQ/DQS group and supports asynchronous activation during reads, writes, and power-down modes. The ODT state persists through self-refresh and deep power-down, ensuring signal integrity during mode transitions without host controller reconfiguration.

Is W63AH6NBVADI compatible with standard LPDDR3 controllers?

Yes, W63AH6NBVADI is fully JEDEC JESD209-3B compliant and interoperable with standard LPDDR3 memory controllers from vendors including Synopsys, Cadence, Arm, and Qualcomm. It implements all mandatory command protocols (activate, read, write, precharge, refresh), timing parameters, and mode register definitions required for drop-in integration-provided CA training and ZQ calibration sequences are executed per the W63AH6NBVADI initialization flow.