Winbond Electronics Corporation W632GG8NB-09

Overview

W632GG8NB-09 from Winbond Electronics is a 2 Gbit DDR3 SDRAM organized as 32M × 8 banks × 8 bits, supporting DDR3-2133 (14-14-14) operation at 1066 MHz clock frequency with CAS Latency 14, VDD/VDDQ = 1.5 V ± 0.075 V, and SSTL_15 interface - deployed as main memory in embedded computing, industrial HMIs, and network edge devices requiring high-bandwidth, low-latency DRAM.

For engineers reviewing the W632GG8NB-09 datasheet, W632GG8NB-09 pinout, W632GG8NB-09 application, or W632GG8NB-09 equivalent, this page delivers verified timing parameters (tAA = 13.09 ns, tRCD = 13.09 ns), JEDEC-compliant power-down modes, ZQ calibration support, on-die termination (ODT), and write leveling capability for DDR3 system-level signal integrity validation.

Technical Context

The W632GG8NB-09 implements an 8-bit prefetch architecture with eight internal banks enabling concurrent access, DLL-aligned DQ/DQS transitions synchronized to differential CK/CK#, and posted CAS with programmable additive latency (AL = 0, CL−1, CL−2) to decouple command issuance from data availability. Its bi-directional DQS/DQS# strobes are edge-aligned on reads and center-aligned on writes.

It supports asynchronous RESET# for power-up initialization, dynamic ODT (Rtt_WR) during writes, multi-purpose register (MPR) readout for system timing calibration, and ZQ calibration using an external 240 Ω reference resistor to adjust output driver and ODT impedance across voltage/temperature variation.

Key Specifications

Pinout & Package

VFBGA-78 package with 8×10.5 mm² footprint, 1.0 mm thickness, and window BGA construction. Ball pitch: 0.8 mm. Compatible with standard DDR3 layout rules including controlled-impedance routing and symmetric DQS/DQ fanout.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MT41K256M8DA-125:A and IS43TR16256B-125KBL, the W632GG8NB-09 delivers higher bandwidth (2133 MT/s vs. 1600 MT/s), full DDR3-2133 timing compliance, and hardware write leveling - critical for timing-closure in high-frequency DDR3 interfaces without requiring controller-level compensation.

Availability

W632GG8NB-09 is available at Aetrix Electronics and suitable for industrial HMIs, network edge routers, medical imaging gateways, and automated test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for W632GG8NB-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 DDR SDRAM for industrial, automotive, and communications markets.

The W632GG8NB series belongs to Winbond's industrial-grade DDR3 SDRAM product line, designed specifically for applications demanding extended temperature operation, JEDEC compliance, and robust signal integrity features like ZQ calibration and write leveling.

FAQ

What is the maximum operating frequency supported by the W632GG8NB-09?

The W632GG8NB-09 supports DDR3-2133 operation with a maximum clock frequency (fCKMAX) of 1066 MHz. This is validated under JEDEC conditions with CL = 14 and tAA/tRCD/tRP = 14-14-14 (13.09 ns minimum). The device also supports down-binned operation at lower speeds (e.g., DDR3-1866 or DDR3-1600) with appropriate mode register programming.

Does the W632GG8NB-09 support write leveling, and how is it implemented?

Yes, the W632GG8NB-09 supports hardware-assisted write leveling as defined in JEDEC DDR3 specification. It uses the DQS strobe in conjunction with the MRS command to enter write leveling mode, allowing the memory controller to calibrate DQS-to-CK skew. This feature is essential for achieving timing closure at DDR3-2133 speeds and is explicitly documented in Section 9.9 of the W632GG8NB-09 datasheet.

What package type and ball count does the W632GG8NB-09 use?

The W632GG8NB-09 uses a VFBGA-78 package: 8 mm × 10.5 mm body size, 1.0 mm height, 0.8 mm ball pitch, and RoHS-compliant lead-free construction. Pinout follows standard DDR3 SDRAM ball mapping per JEDEC MO-270, with dedicated VDD/VDDQ, CK/CK#, DQS/DQS#, and address/command balls as confirmed in Sections 6 and 7 of the datasheet.

How does ZQ calibration function on the W632GG8NB-09?

ZQ calibration on the W632GG8NB-09 uses an external 240 Ω precision resistor connected between ZQ pin and VSS to calibrate both output driver strength and on-die termination (ODT) resistance. The calibration occurs at power-up, after reset, or on-demand via ZQCL command, correcting for process, voltage, and temperature (PVT) variations to maintain SSTL_15 signal integrity - detailed in Section 9.18 of the datasheet.

What are the supported CAS Latency (CL) and CAS Write Latency (CWL) values for the W632GG8NB-09?

The W632GG8NB-09 supports CL = 5, 6, 7, 8, 9, 10, 11, 13, and 14, with CWL = 5, 6, 7, 8, 9, and 10. For DDR3-2133 operation, CL = 14 and CWL = 10 are required per JEDEC specification. These values are programmed via Mode Registers MR0 and MR2 respectively, and validated across temperature and voltage per Section 4 and 9.3 of the W632GG8NB-09 datasheet.