Winbond Electronics Corporation W632GU6MB-09

Overview

W632GU6MB-09 from Winbond is a 2 Gb (16M × 8 banks × 16-bit) DDR3L SDRAM supporting DDR3L-2133 speed grade (14-14-14 CL-tRCD-tRP), 1.35 V nominal supply, and industrial temperature range (0°C to 95°C). It features eight internal banks, 8-bit prefetch architecture, programmable CAS latency (CL = 5–14), and on-die termination for high-speed memory subsystems in embedded computing and networking equipment.

For engineers reviewing the W632GU6MB-09 datasheet, W632GU6MB-09 pinout, W632GU6MB-09 application, or W632GU6MB-09 equivalent, key selection considerations include its DDR3L-2133 timing compliance, VFBGA-96 package with 7.5 × 13 mm footprint, ZQ calibration support, asynchronous RESET# functionality, and compatibility with JEDEC-standard DDR3L controllers requiring low-voltage operation and robust signal integrity at 1066 MHz clock frequency.

Technical Context

This device implements a double-data-rate architecture synchronized to differential CK/CK# inputs, with all commands latched on the rising edge of CK. Internal operations use an 8-bit prefetch buffer and eight independent banks to enable concurrent access and bank interleaving, reducing average latency in burst-intensive workloads.

It supports full DDR3L feature set including programmable CWL (5–10), additive latency (AL = 0, CL−1, CL−2), posted CAS, auto-precharge, dynamic ODT (Rtt_WR), partial array self-refresh (PASR), and write leveling - all configurable via mode registers MR0–MR3 and controlled through standard command bus (ACT, READ, WRITE, PRE, REF, etc.).

Key Specifications

Pinout & Package

VFBGA-96 package with 7.5 mm × 13 mm body size, 0.8 mm ball pitch, and RoHS-compliant lead-free finish. Ball layout follows JEDEC MO-274 standard for DDR3L SDRAM.

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, the W632GU6MB-09 uniquely combines DDR3L-2133 performance, full JEDEC write leveling + MPR calibration, PASR, and ASR - making it optimal for thermally constrained, high-reliability embedded systems requiring autonomous power management and precise timing closure.

Availability

W632GU6MB-09 is available at Aetrix Electronics and suitable for networking equipment, industrial HMI controllers, medical imaging subsystems, and automated test equipment requiring stable component supply, long-term lifecycle assurance, and validated DDR3L-2133 interoperability.

Supply support for W632GU6MB-09 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-09 belongs to Winbond's DDR3L SDRAM product line, designed specifically for cost-sensitive, thermally constrained embedded systems needing JEDEC-compliant low-voltage memory with extended temperature support and advanced power management features.

FAQ

What is the maximum clock frequency supported by the W632GU6MB-09?

The W632GU6MB-09 supports a maximum clock frequency of 1066 MHz, corresponding to DDR3L-2133 data rate (2133 MT/s). This is validated under JEDEC-specified conditions with CL-tRCD-tRP = 14-14-14 and VDD/VDDQ = 1.35 V ± 6.7%. The device maintains timing compliance across its full commercial-industrial temperature range (0°C to 95°C).

Does the W632GU6MB-09 support both 1.35 V and 1.5 V operation?

Yes, the W632GU6MB-09 is fully backward-compatible with standard DDR3 1.5 V operation (VDD/VDDQ = 1.5 V ± 0.075 V) while maintaining DDR3L-2133 timing specifications. Its DC operating range is 1.283 V to 1.45 V for DDR3L mode and extends to 1.5 V for legacy DDR3 compatibility, allowing seamless migration in existing 1.5 V designs without hardware changes.

How does the W632GU6MB-09 handle thermal management at elevated temperatures?

The W632GU6MB-09 supports extended temperature operation up to 95°C case temperature. At temperatures above 85°C, it doubles the auto-refresh rate (tREFI = 3.9 µS) and requires either Manual Self-Refresh with Extended Temperature Range (MR2[7:6] = 0b01) or Auto Self-Refresh (ASR) mode (MR2[7:6] = 0b1x) to maintain data retention - a capability confirmed in its datasheet revision A02.

What calibration features does the W632GU6MB-09 provide for high-speed PCB design?

The W632GU6MB-09 provides ZQ calibration for output driver and ODT impedance tuning, plus write leveling and Multi-Purpose Register (MPR) read patterns for system-level timing validation. These features allow precise DQS-to-CK skew compensation and pre-defined bit-sequence readout to verify signal integrity margins before full system bring-up.

Is the W632GU6MB-09 pin-compatible with other Winbond DDR3L SDRAMs in the same density and package?

Yes, the W632GU6MB-09 shares identical VFBGA-96 pinout, ball assignment, and command protocol with other members of the W632GU6MB family (e.g., -11, -12, -15 variants), enabling drop-in replacement across speed grades. All variants use the same 7.5 × 13 mm footprint, ball pitch, and JEDEC MO-274 mechanical specification.