Winbond Electronics Corporation W632GU6MB09J

Overview

W632GU6MB09J from Winbond is a 2G-bit DDR3L SDRAM organized as 16M × 8 banks × 16 bits, supporting DDR3L-2133 (14-14-14) operation at 1066 MHz clock frequency with CAS Latency 14, CWL 10, and industrial-plus temperature range (–40°C to +105°C). It delivers high-bandwidth memory for embedded computing, networking infrastructure, and industrial control systems requiring extended thermal reliability.

For engineers reviewing the W632GU6MB09J datasheet, W632GU6MB09J pinout, W632GU6MB09J application, or W632GU6MB09J equivalent, key selection criteria include its VDD/VDDQ = 1.283–1.45 V low-voltage operation, ZQ calibration support, programmable ODT (RTT_NOM/RTT_WR), DLL-enabled timing alignment, and compatibility with JEDEC DDR3L-2133 timing requirements.

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 CK/CK# and DQS/DQS# interfaces enable source-synchronous double-data-rate transfers aligned to clock edges.

The device integrates asynchronous RESET#, on-die termination (ODT) with synchronous and dynamic modes, multi-purpose register (MPR) for system-level timing calibration, and write leveling for precise DQ-to-DQS skew compensation - all essential for stable high-speed memory subsystems in thermally demanding environments.

Key Specifications

Pinout & Package

VFBGA-96 package with 7.5 mm × 13 mm footprint and 0.8 mm ball pitch; RoHS-compliant, lead-free construction per JEDEC MO-276AB standard.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MT41K256M16HA-125:E and IS43TR16256B-125KBL, W632GU6MB09J uniquely combines DDR3L-2133 performance, full 1.283–1.45 V operation, and guaranteed 105°C case temperature support - enabling higher throughput and lower power in thermally constrained embedded systems without compromising reliability.

Availability

W632GU6MB09J is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, and medical imaging systems requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for W632GU6MB09J 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 DRAM products for industrial, automotive, and communications markets.

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

FAQ

What is the maximum supported CAS Latency for W632GU6MB09J?

W632GU6MB09J supports CAS Latency up to CL=14, which corresponds to the DDR3L-2133 (14-14-14) speed bin. This setting yields a minimum t_AA of 13.09 ns and is validated for operation at 1066 MHz clock frequency with VDD/VDDQ = 1.283–1.45 V across the full –40°C to +105°C temperature range. CL settings are configured via Mode Register MR0.

Does W632GU6MB09J support both 1.35 V and 1.5 V operation?

Yes, W632GU6MB09J supports dual-voltage operation: it is fully compliant with DDR3L specifications at 1.35 V (range 1.283–1.45 V) and backward-compatible with standard DDR3 at 1.5 V ±0.075 V. Voltage switching between modes is supported per JEDEC specification, and both configurations maintain full timing compliance within their respective temperature ranges.

How does the ZQ calibration function work on W632GU6MB09J?

W632GU6MB09J uses the ZQ pin to connect to an external 240 Ω ±1% precision resistor to ground. During ZQ calibration commands, the device measures this reference to calibrate internal output driver strength and on-die termination (ODT) impedances. This ensures consistent signal integrity across voltage and temperature variations, and calibration must be performed after power-up and periodically during operation.

What is the purpose of the Multi-Purpose Register (MPR) in W632GU6MB09J?

The MPR in W632GU6MB09J outputs a fixed, predefined 128-bit pattern used for system-level timing margin analysis and write leveling calibration. When enabled via MR3, the MPR replaces normal read data, allowing the memory controller to measure DQ-to-DQS skew and adjust delay settings - a critical step for achieving stable 2133 MT/s operation on production PCBs.

Is W632GU6MB09J pin-compatible with other Winbond DDR3L SDRAMs in the same package?

W632GU6MB09J uses the standard VFBGA-96 (7.5 mm × 13 mm) package defined in JEDEC MO-276AB, and shares identical ball mapping with other members of the W632GU6MB family (e.g., W632GU6MB11J, W632GU6MB12J). Pin functions, voltage assignments, and timing interface behavior are consistent across speed grades, enabling drop-in replacement within the same density and organization.