Winbond Electronics Corporation W632GU6MB15J

Overview

W632GU6MB15J from Winbond is a 2G-bit DDR3L SDRAM organized as 16M × 8 banks × 16 bits, operating at 1.35 V nominal supply with support for backward compatibility to 1.5 V DDR3. It delivers DDR3L-1333 performance (9-9-9 timing) and supports industrial-plus temperature range (–40°C to +105°C). This device enables high-bandwidth memory subsystems in embedded controllers, network edge devices, and industrial HMIs requiring low-voltage operation and extended thermal reliability.

For engineers reviewing the W632GU6MB15J datasheet, W632GU6MB15J pinout, W632GU6MB15J application, or W632GU6MB15J equivalent, key selection criteria include its DDR3L-1333 speed grade, 96-ball VFBGA package, programmable CAS latency (CL = 5–10), on-die termination (ODT), ZQ calibration, and industrial-plus temperature qualification - all critical for stable memory interface design in thermally demanding environments.

Technical Context

This DDR3L SDRAM implements an 8-bit prefetch architecture with eight internal banks for concurrent access and supports both burst length 8 (BL8) and burst chop 4 (BC4) modes. Its differential clock (CK/CK#) and strobe (DQS/DQS#) interfaces ensure precise source-synchronous timing, while DLL alignment maintains data-eye integrity across process/voltage/temperature variations.

The device features asynchronous RESET# for power-up initialization and supports multiple power-down modes (precharged and active), self-refresh, auto self-refresh (ASR), and partial array self-refresh (PASR). Programmable mode registers (MR0–MR3) configure CAS latency, CWL, ODT settings, write leveling, and MPR readout - enabling system-level timing calibration and signal integrity optimization.

Key Specifications

Pinout & Package

VFBGA-96 package (7.5 mm × 13 mm, 1.0 mm thickness) with ball pitch of 0.8 mm; RoHS-compliant and lead-free construction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar DDR3L SDRAM applications.

Compared with IS43TR16128B-15JBLI and MT41K128M16JT-125:K, W632GU6MB15J uniquely guarantees full DDR3L-1333 9-9-9 timing compliance at +105°C case temperature, includes native support for ASR/PASR power management modes, and provides identical JEDEC-compliant pinout and command set - making it the most direct fit for thermally constrained industrial designs requiring guaranteed specification adherence.

Availability

W632GU6MB15J is available at Aetrix Electronics and suitable for industrial HMIs, network edge routers, medical imaging gateways, and ruggedized IoT gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for W632GU6MB15J 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 Flash, DDR SDRAM, and mobile LPDRAM.

The W632GU6MB series belongs to Winbond's industrial-grade DDR3L SDRAM product line, designed specifically for embedded systems requiring extended temperature operation, low-voltage compatibility, and JEDEC-compliant reliability in harsh environments.

FAQ

What is the maximum operating frequency and timing specification for W632GU6MB15J?

W632GU6MB15J is rated for DDR3L-1333 operation with a maximum clock frequency of 667 MHz and JEDEC-standard 9-9-9 timing (tCL/tRCD/tRP = 9 ns each). Its minimum tAA, tRCD, and tRP values are all 13.5 ns, supporting reliable interface timing at this speed grade across the full –40°C to +105°C temperature range. The W632GU6MB15J datasheet confirms these parameters under industrial-plus operating conditions.

Does W632GU6MB15J support both 1.35 V and 1.5 V operation?

Yes, W632GU6MB15J supports dual-voltage operation: nominal 1.35 V DDR3L mode (1.283–1.45 V) and backward-compatible 1.5 V DDR3 mode (1.425–1.575 V). Voltage switching between modes is supported via controlled VDD/VDDQ ramping and mode register configuration, allowing seamless integration into legacy 1.5 V systems or migration paths to lower-power DDR3L. This capability is explicitly defined in the W632GU6MB15J datasheet Section 11.

What package type and ball count does W632GU6MB15J use?

W632GU6MB15J uses a 96-ball Very Thin Fine-Pitch Ball Grid Array (VFBGA) package measuring 7.5 mm × 13 mm with 0.8 mm ball pitch and 1.0 mm maximum height. It is RoHS-compliant and lead-free. The ball configuration matches JEDEC MO-275AC standard, and pin assignments (including address, command, data, and control signals) are fully documented in Sections 5 and 6 of the W632GU6MB15J datasheet.

How does W632GU6MB15J handle power management in high-temperature environments?

W632GU6MB15J supports Auto Self-Refresh (ASR) and Partial Array Self-Refresh (PASR) to maintain data retention while minimizing current draw above 85°C. At +105°C case temperature, it mandates either ASR (MR2 A6=1b) or Manual Self-Refresh with Extended Temperature Range (MR2 A6=0b, A7=1b) to double refresh rate (tREFI = 3.9 µs). These modes reduce IDD6 current to ≤11 mA and prevent data loss under thermal stress - a key feature confirmed in W632GU6MB15J Section 4 and 8.16.

What calibration features does W632GU6MB15J provide for signal integrity tuning?

W632GU6MB15J integrates ZQ calibration for output driver and ODT impedance matching, write leveling for DQS-to-CK skew compensation, and Multi-Purpose Register (MPR) readout for system-level timing margin validation. These features enable precise board-level tuning of setup/hold windows and termination networks. All three are implemented per JEDEC DDR3L standards and verified in W632GU6MB15J Sections 8.18, 8.9, and 8.10 respectively.