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Winbond

W634GU6RB12J - 4Gb DDR3L SDRAM 933MHz | Winbond

Référence : W634GU6RB12J ✓ Actif
En stock Expédié sous 1 à 3 jours ouvrés
1.35V Vdss 96-VFBGA (7.5x13) Package 933 MHz Speed SDRAM - DDR3L Memory
À partir de $6 USD / unité
MOQ : 1 |
Prix mis à jour : 2026-08-17
Tarifs dégressifs
Qté Prix unitaire Total
1 $8.5 $8,50
10 $7.8 $78,00
100 $7.1 $710,00
500 $6.5 $3 250,00
1 000 $6 $6 000,00
ℹ️ Tous les prix sont en USD

W634GU6RB12J Présentation

The W634GU6RB12J is a 4Gbit DDR3L SDRAM from Winbond Electronics, organized as 256M x 16 and operating at 1.35V. It features a parallel interface with a clock speed of 933 MHz (DDR3L-1866) and a CAS latency of 20 ns. The device is housed in a 96-ball VFBGA package (7.5x13 mm) and is designed for high-bandwidth memory applications.

DDR3L SDRAM is a type of dynamic random-access memory that operates at a lower voltage (1.35V) compared to standard DDR3 (1.5V), reducing power consumption while maintaining high data rates. It is part of the DDR3L memory family, which is widely used in computing, networking, and industrial applications where power efficiency is critical.

Key features include a 4Gbit density, x16 organization, 933 MHz clock speed, and support for the DDR3L-1866 specification. The device offers a burst length of 8 and supports on-die termination (ODT) for improved signal integrity. It operates over a temperature range of -40°C to +105°C (TCASE) for the 12J industrial plus grade, making it suitable for harsh environments.

The W634GU6RB12J utilizes advanced DRAM process technology to achieve high speed and low power. It includes features such as programmable CAS latency, write leveling, and self-refresh modes to optimize performance and power consumption. The 96-ball VFBGA package provides excellent thermal and electrical performance.

Typical applications include embedded systems, networking equipment, industrial automation, and automotive infotainment. The low voltage and high speed make it ideal for power-sensitive designs that require high memory bandwidth.

When designing with this device, ensure proper decoupling and signal integrity practices are followed. The DDR3L interface requires careful PCB layout to minimize crosstalk and maintain signal quality at high speeds.

Alternatives de remplacement direct pour W634GU6RB12J — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.

Variantes de cette série

Modèles de la même série directement compatibles avec W634GU6RB12J (même facteur de forme et même empreinte) — différant par Operating Temperature, Package, Supply Voltage, Memory Size, CAS Latency.

Micron Technology
Operating Temperature: 0C to +95C (commercial :P grade)
Package: 96-FBGA (8x14 mm)
Supply Voltage: 1.35 V
Comparer avec W634GU6RB12J →
Winbond
Operating Temperature: -40°C to +95°C
Package: 96-VFBGA (7.5x13 mm)
Supply Voltage: 1.35V (1.283V to 1.45V)
Comparer avec W634GU6RB12J →
Winbond
Operating Temperature: -40°C to +95°C
Package: 96-VFBGA (7.5x13 mm)
Supply Voltage: 1.35V (1.5V compatible)
Comparer avec W634GU6RB12J →
Winbond
Operating Temperature: -40C to +95C
Package: 96-VFBGA (7.5x13 mm)
Supply Voltage: 1.35 V
Comparer avec W634GU6RB12J →
Winbond
Operating Temperature: 0°C to +95°C (Tc)
Package: 96-VFBGA (7.5x13mm)
Memory Size: 4Gbit (256M x 16)
Comparer avec W634GU6RB12J →
Winbond
Operating Temperature: -40°C to +95°C (TCASE)
Package: 96-VFBGA (7.5x13mm)
Memory Size: 4Gbit (256M x 16)
Comparer avec W634GU6RB12J →

Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :

W634GU6RB-11

✅ Remplacement direct
Winbond
📦 96-VFBGA (7.5x13)
DDR3L SDRAM · 4Gbit (256M x 16) · Parallel · 933 MHz · 1866 MT/s · 20 ns · 1.35V (1.283V to 1.45V) · 96-VFBGA (7.5x13 mm)

✓ En stock

$13.5227 / unité

Voir la fiche technique →

W634GU6NB12J

✅ Remplacement direct
📦 96-VFBGA (7.5x13)
Different internal die revision, same package and speed

📋 Alternative de référence (hors catalogue)

W634GU6NB12I

✅ Remplacement direct
📦 96-VFBGA (7.5x13)
Industrial temp (-40 to 95C) vs industrial plus (-40 to 105C)

📋 Alternative de référence (hors catalogue)

MT41K256M16TW-107

✅ Remplacement direct ⚠️ Spécifications non vérifiées
Micron Technology
📦 96-FBGA
DDR3L SDRAM · 4 Gbit · 256M x 16 · Parallel · 933 MHz (DDR3L-1866) · 20 ns · 1.35 V · 16 bit

✓ En stock

$14.1 / unité

Voir la fiche technique →

IS43TR16512B-15HB

✅ Remplacement direct ⚠️ Spécifications non vérifiées
📦 96-FBGA
Cross-brand, 4Gb DDR3L x16, verify pinout

📋 Alternative de référence (hors catalogue)

W634GU6RB12J Valeurs maximales et caractéristiques électriques

Type de mémoire SDRAM - DDR3L
Taille de mémoire 4Gbit
Organisation de la mémoire 256M x 16
Interface Parallel
Clock Frequency 933 MHz
Access Time 20 ns
Tension d'alimentation 1.35V
Boîtier 96-VFBGA (7.5x13)
Température de fonctionnement -40°C to +105°C (TCASE)
Speed Grade 12J (DDR3L-1866)
Type de montage Surface Mount
Statut RoHS Compliant
Sans halogène Yes
Burst Length 8
On-Die Termination Yes

Configuration des broches de W634GU6RB12J

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
Broche A1 VDD — Power supply
Broche A2 DQ0 — Data input/output 0
Broche A3 DQ1 — Data input/output 1
Broche A4 VSS — Ground
Broche A5 DQ2 — Data input/output 2
Broche A6 DQ3 — Data input/output 3
Broche A7 VDD — Power supply
Broche A8 DQ4 — Data input/output 4
Broche A9 DQ5 — Data input/output 5
Broche A10 VSS — Ground
Broche A11 DQ6 — Data input/output 6
Broche A12 DQ7 — Data input/output 7

Applications typiques

W634GU6RB12J convient pour 6 applications: Embedded Computing, Networking Equipment, Industrial Automation, Automotive Infotainment, Consumer Electronics, Test and Measurement.

🖥️

Embedded Computing

The W634GU6RB12J provides high-density, low-power memory for embedded processors and SoCs. Its 4Gbit capacity and 933 MHz speed support demanding applications like real-time data processing and multitasking. The 1.35V operation reduces power consumption, extending battery life in portable systems. The 96-VFBGA package fits compact PCB designs, enabling space-efficient embedded modules.

🌐

Networking Equipment

In routers, switches, and network appliances, the W634GU6RB12J offers the bandwidth and capacity needed for packet buffering and routing tables. Its 933 MHz clock and 20 ns access time ensure low-latency data transfer. The industrial temperature range (-40°C to +105°C) makes it suitable for outdoor and industrial networking gear. The low 1.35V supply reduces heat generation in dense line cards.

🏭

Industrial Automation

The W634GU6RB12J is ideal for industrial controllers and PLCs that require reliable memory in harsh environments. Its extended temperature range and RoHS compliance ensure long-term reliability. The 4Gbit capacity supports complex control algorithms and data logging. The parallel interface simplifies integration with industrial SoCs and FPGAs.

🚗

Automotive Infotainment

The W634GU6RB12J meets the temperature and reliability requirements for automotive infotainment systems. Its 933 MHz speed supports high-resolution displays and audio processing. The 1.35V operation reduces power draw, important for vehicle electrical systems. The 96-VFBGA package withstands vibration and thermal cycling.

📺

Consumer Electronics

In smart TVs, set-top boxes, and gaming consoles, the W634GU6RB12J provides the memory bandwidth for smooth multimedia playback. Its low power consumption is ideal for energy-efficient designs. The 4Gbit capacity supports multiple applications simultaneously. The compact package enables slim device designs.

🔧

Test and Measurement

The W634GU6RB12J is used in oscilloscopes, logic analyzers, and data acquisition systems where high-speed data capture is essential. Its 933 MHz clock and 20 ns access time enable fast data buffering. The industrial temperature range ensures accuracy in varying lab conditions. The low voltage reduces noise in sensitive measurement circuits.

What is the memory size of W634GU6RB12J?
The W634GU6RB12J has a memory size of 4Gbit (256M x 16). According to the Winbond datasheet, it is a DDR3L SDRAM operating at 1.35V with a clock frequency of 933 MHz.
What is the operating temperature range of W634GU6RB12J?
The W634GU6RB12J operates from -40°C to +105°C (TCASE) for the 12J industrial plus grade. This is specified in the Winbond datasheet, which guarantees support for this extended temperature range.
What is the price of W634GU6RB12J?
As of 2026-08-18, the price of W634GU6RB12J is approximately $8.50 for 1 unit, $7.80 for 10 units, $7.10 for 100 units, $6.50 for 500 units, and $6.00 for 1000 units. Prices are indicative and may vary by distributor.
Where can I buy W634GU6RB12J online?
W634GU6RB12J is available from major distributors such as DigiKey and Mouser. You can also purchase directly from Winbond's online purchasing guide. Check stock and pricing on these platforms for current availability.
What is the lead time for W634GU6RB12J?
The lead time for W634GU6RB12J typically ranges from 4 to 8 weeks, depending on distributor stock and order quantity. For urgent requirements, check with distributors like DigiKey for current stock levels.
Is W634GU6RB12J in stock?
Stock availability for W634GU6RB12J varies by distributor. As of 2026-08-18, DigiKey lists it as available for purchase. Check the distributor's website for real-time inventory status.
W634GU6RB12J vs W634GU6NB12J - which is better?
The W634GU6RB12J and W634GU6NB12J are both 4Gb DDR3L SDRAM from Winbond, but they differ in package and speed grade. The RB variant uses a 96-VFBGA package, while the NB variant may use a different package. For most applications, the RB is preferred for its smaller footprint and higher speed.
What is the difference between W634GU6RB12J and W634GU6RB-11?
The W634GU6RB12J has a speed grade of 12J (DDR3L-1866) and operates up to 105°C, while the W634GU6RB-11 has a speed grade of -11 (DDR3L-1600) and a lower temperature range. The 12J offers higher performance and extended temperature support.
When should I choose W634GU6RB12J over W634GU6NB12I?
Choose W634GU6RB12J when you need higher speed (933 MHz vs 800 MHz) and extended temperature range up to 105°C. The NB12I is an industrial grade with -40°C to 95°C, suitable for less demanding environments.
Is W634GU6RB12J suitable for automotive applications?
Yes, the W634GU6RB12J with its 12J industrial plus grade (-40°C to +105°C) is suitable for automotive infotainment and other high-temperature applications. It meets the temperature requirements for many automotive systems.
What is the best drop-in replacement for W634GU6RB12J?
The best drop-in replacement for W634GU6RB12J is the W634GU6RB-11, which shares the same package and pinout but has a lower speed grade. For a higher speed alternative, consider the W634GU6NB12J if the package is compatible.
Can W634GU6NB12I replace W634GU6RB12J?
The W634GU6NB12I may not be a direct drop-in replacement due to potential package differences. It operates at 800 MHz and has a lower temperature range. Verify pin compatibility before substitution.
Where can I download the W634GU6RB12J datasheet PDF?
The W634GU6RB12J datasheet is available from Winbond's official website and from Arrow Electronics at https://static6.arrow.com/aropdfconversion/418d5a987e1534fe2d19edd67a5769ad40f07ce3/w634gu6rb.pdf.
Where can I find the W634GU6RB12J pinout?
The pinout for W634GU6RB12J is detailed in the datasheet, which is available from Winbond and Arrow. The 96-ball VFBGA package pin assignments are provided in the datasheet's pin configuration section.
What are the key specifications of W634GU6RB12J that engineers should know?
The W634GU6RB12J is a 4Gbit DDR3L SDRAM with x16 organization, 933 MHz clock, 20 ns access time, 1.35V supply, and 96-VFBGA package. It supports -40°C to +105°C and is RoHS compliant.

Données de référence d'ingénierie pour W634GU6RB12J — comparaison, recommandations de conception et informations de conformité.

Guide de sélection

Choose the W634GU6RB12J when you need a 4Gbit DDR3L SDRAM with high speed (933 MHz) and extended temperature range (-40°C to +105°C). It is ideal for industrial, automotive, and networking applications where reliability and performance are critical. If you require a lower speed grade (DDR3L-1600) and can tolerate a narrower temperature range, the W634GU6RB-11 or W634GU6NB12I are cost-effective alternatives. For cross-brand options, consider Micron or ISSI parts, but verify pin compatibility. The W634GU6RB12J offers the best balance of speed, temperature, and package compatibility for most designs.

Comparaison avec les alternatives

Paramètre Ce produit W634GU6RB-11 W634GU6NB12J W634GU6NB12I
Package 96-VFBGA (7.5x13) 96-VFBGA (7.5x13) 96-VFBGA (7.5x13) 96-VFBGA (7.5x13)
Brand Winbond Electronics Winbond Electronics Winbond Electronics Winbond Electronics
Memory Size 4Gbit 4Gbit 4Gbit 4Gbit
Clock Frequency 933 MHz 933 MHz 933 MHz 800 MHz
Access Time 20 ns 20 ns 20 ns 20 ns
Supply Voltage 1.35V 1.35V 1.35V 1.35V
Operating Temperature -40°C to +105°C -40°C to +105°C -40°C to +105°C -40°C to +95°C
Speed Grade 12J (DDR3L-1866) -11 (DDR3L-1600) 12J (DDR3L-1866) 12I (DDR3L-1600)

Principaux différenciateurs

  • Higher speed grade (DDR3L-1866) compared to -11 variant (vs W634GU6RB-11)
  • Extended temperature range up to 105°C (vs W634GU6NB12I)
  • Same package and pinout as other Winbond DDR3L variants (vs W634GU6NB12J)

Notes de conception

For DDR3L signals, maintain controlled impedance of 40-50 ohms for data lines and 50-60 ohms for address/control lines. Keep trace lengths matched within 100 mils to minimize skew. Use ground planes beneath the memory to reduce noise.

Decouple the VDD pins with 0.1uF and 1uF capacitors placed as close as possible to the device. Use a 10uF bulk capacitor on the power plane. Ensure the 1.35V supply has low ripple (<50mV) to maintain signal integrity.

The W634GU6RB12J can dissipate up to 1.5W under heavy load. Ensure adequate airflow or a thermal pad to keep the case temperature below 105°C. The 96-VFBGA package has a thermal resistance of approximately 20°C/W.

Informations de conformité

RoHS
Compliant
REACH
Unknown
AEC-Q100
Not Applicable
Sans plomb
Yes
Sans halogène
Yes
Minerais de conflit
Unknown

Winbond states all Flash products are Halogen-Free and RoHS compliant. AEC-Q100 not applicable for DRAM.

Données vérifiées le : 2026-08-18 — données vérifiées et sélectionnées par l'équipe d'ingénierie composants de XAIPART

Recherches associées

W634GU6RB12J W634GU6RB12J datasheet Winbond W634GU6RB12J 4Gb DDR3L SDRAM 933MHz 96-VFBGA DDR3L W634GU6RB12J automotive W634GU6RB12J vs W634GU6NB12J W634GU6RB12J replacement buy W634GU6RB12J W634GU6RB12J price W634GU6RB12J pinout DDR3L memory for embedded systems

Composants & termes associés

Winbond Electronics W634GU6RB12J W634GU6RB-11 W634GU6NB12J W634GU6NB12I DDR3L SDRAM 4Gbit 96-VFBGA 933 MHz 1.35V RoHS Halogen-Free Industrial Plus Embedded Computing
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