Winbond Electronics Corporation W632GG8NB09I

Overview

W632GG8NB09I from Winbond Electronics is a 2 Gbit DDR3 SDRAM organized as 32M × 8 banks × 8 bits, supporting DDR3-2133 (14-14-14) operation at up to 1066 MHz clock frequency with CAS Latency 14, VDD/VDDQ = 1.5 V ± 0.075 V, and industrial temperature range (–40°C to +95°C). It serves as main system memory in embedded controllers, networking processors, and industrial SoC platforms requiring high-bandwidth, low-latency data buffering.

For engineers reviewing the W632GG8NB09I datasheet, W632GG8NB09I pinout, W632GG8NB09I application, or W632GG8NB09I equivalent, key selection criteria include its DDR3-2133 speed bin, industrial-grade thermal rating, VFBGA-78 package, SSTL_15 interface compliance, and support for ZQ calibration, dynamic ODT, and write leveling-critical for signal integrity in high-speed memory subsystems.

Technical Context

This DDR3 SDRAM implements an 8-bit prefetch architecture with eight internal banks enabling concurrent access, DLL-aligned DQ/DQS timing, and source-synchronous differential strobe (DQS/DQS#) I/O synchronized to CK/CK#. Its command interface uses positive-edge-triggered control signals referenced to the CK–CK# crosspoint.

It supports programmable CAS Write Latency (CWL = 5–10), additive latency (AL = 0, CL−1, CL−2), posted CAS, auto-precharge, and multi-mode refresh including ASR and PASR. The asynchronous RESET# pin enables deterministic power-up initialization and runtime reset independent of clock stability.

Key Specifications

Pinout & Package

VFBGA-78 package with 8×10.5 mm² footprint, 1.0 mm thickness, and ball pitch of 0.8 mm. Ball layout follows JEDEC-standard DDR3 SDRAM pinout for 78-ball configurations.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar DDR3 SDRAM applications.

Compared with MT41K256M8RH-125:E and IS43TR16256B-125KBL, W632GG8NB09I delivers 33% higher bandwidth at 2133 MT/s, retains full industrial thermal qualification at 95°C, and includes write leveling and PASR-making it optimal for performance-critical embedded systems where timing margin and power efficiency are co-constrained.

Availability

W632GG8NB09I is available at Aetrix Electronics and suitable for industrial automation, network infrastructure, and medical imaging systems requiring stable component supply, long-term lifecycle assurance, and guaranteed industrial temperature performance.

Supply support for W632GG8NB09I 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 W632GG8NB series belongs to Winbond's industrial-grade DDR3 SDRAM product line, engineered specifically for reliability-critical embedded systems requiring extended temperature operation, JEDEC-compliant timing, and advanced signal integrity features like ZQ calibration and dynamic ODT.

FAQ

What is the maximum supported data rate for W632GG8NB09I?

W632GG8NB09I supports DDR3-2133 operation at 2133 MT/s, corresponding to a 1066 MHz clock frequency with CL=14, tAA/tRCD/tRP = 14-14-14 timing. This is validated across its full industrial temperature range (–40°C to +95°C) and requires compliant SSTL_15 signaling and proper board-level termination.

Does W632GG8NB09I support write leveling, and how is it implemented?

Yes, W632GG8NB09I supports write leveling via its Multi-Purpose Register (MPR) and dedicated write leveling command sequence. The controller issues a MRS command to enter write leveling mode, then adjusts DQS delay until the DRAM echoes back a known pattern on DQ pins-enabling precise DQS-to-CK skew calibration essential for 2133 MT/s timing closure.

What package type and ball count does W632GG8NB09I use?

W632GG8NB09I uses a VFBGA-78 package: 78-ball, 8 mm × 10.5 mm footprint, 0.8 mm ball pitch, and 1.0 mm height. It is RoHS-compliant and lead-free, designed for high-density PCB layouts and thermal performance in industrial applications.

How does the ZQ calibration function work on W632GG8NB09I?

ZQ calibration on W632GG8NB09I uses an external 240 Ω ±1% resistor connected to the ZQ pin to ground. Upon receiving a ZQCL command, the device measures this reference and adjusts internal output driver strength and ODT resistance values to maintain 240 Ω nominal impedance across process, voltage, and temperature variations-ensuring consistent signal integrity.

Is W632GG8NB09I pin-compatible with other Winbond DDR3 SDRAMs in the same family?

W632GG8NB09I shares identical VFBGA-78 pinout and ball assignment with all W632GG8NB speed grades (e.g., -11, 11I, 09J), enabling direct substitution within the same temperature grade. However, it is not pin-compatible with Winbond's 96-ball DDR3 devices (e.g., W632GU8MB) due to differing ball count and layout.