W634GU6RB-11 - 4Gb DDR3L SDRAM 933MHz | Winbond
MPN: W634GU6RB-11 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $45.4 | $45.40 |
| 10 | $42.5 | $425.00 |
| 100 | $38.7 | $3,870.00 |
| 500 | $35.2 | $17,600.00 |
| 1,000 | $32.8 | $32,800.00 |
Drop-in alternatives for W634GU6RB-11 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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Request AlternativesW634GU6RB-11 Maximum Ratings & Electrical Characteristics
| Memory Type | SDRAM - DDR3L |
| Memory Size | 4Gbit (256M x 16) |
| Interface | Parallel |
| Clock Frequency | 933 MHz |
| Access Time | 20 ns |
| Supply Voltage | 1.35V (1.283V to 1.45V) |
| Package | 96-VFBGA (7.5x13 mm) |
| Operating Temperature | -40°C to +95°C |
| Data Rate | 1866 MT/s |
| Organization | 256M x 16 |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Halogen Free | Yes |
| Auto Self-Refresh | Yes |
| Write Leveling | Yes |
| ZQ Calibration | Yes |
W634GU6RB-11 Pin Configuration
| Pin A1 | VDD — Power supply (1.35V) |
| Pin A2 | DQ0 — Data input/output 0 |
| Pin A3 | DQ1 — Data input/output 1 |
| Pin A4 | VSS — Ground |
| Pin A5 | DQ2 — Data input/output 2 |
| Pin A6 | DQ3 — Data input/output 3 |
| Pin A7 | VDDQ — I/O power supply |
| Pin A8 | DQ4 — Data input/output 4 |
| Pin A9 | DQ5 — Data input/output 5 |
| Pin A10 | VSS — Ground |
| Pin A11 | DQ6 — Data input/output 6 |
| Pin A12 | DQ7 — Data input/output 7 |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
W634GU6RB-11 is suitable for 6 applications: Networking Equipment, Industrial Computing, Consumer Electronics, Automotive Infotainment, Embedded Systems, Data Center Servers.
Networking Equipment
The W634GU6RB-11 provides high-bandwidth, low-power memory for routers and switches. Its 1866 MT/s data rate supports high-throughput packet processing, while the 1.35V operation reduces power consumption in always-on network devices. The 4Gbit density allows for large routing tables and buffering, and the industrial temperature range ensures reliability in telecom environments.
Recommended
Industrial Computing
In industrial PCs and embedded systems, the W634GU6RB-11 offers reliable, high-speed memory for data logging and control applications. Its -40°C to +95°C operating range suits harsh environments, and the 4Gbit capacity supports complex software stacks. The low 1.35V supply reduces heat generation, improving system longevity in sealed enclosures.
Recommended
Consumer Electronics
For smart TVs, set-top boxes, and gaming consoles, the W634GU6RB-11 delivers the memory bandwidth needed for HD video streaming and multitasking. Its compact 96-VFBGA package saves PCB space, and the low power consumption extends battery life in portable devices. The 933 MHz clock ensures smooth performance for media-rich applications.
Recommended
Automotive Infotainment
The W634GU6RB-11 supports automotive infotainment systems requiring high-speed memory for navigation, audio, and video. Its wide temperature range and low power make it suitable for in-vehicle electronics. The 4Gbit density allows for large map data storage, and the 1866 MT/s data rate handles real-time graphics rendering.
Recommended
Embedded Systems
In embedded systems like IoT gateways and medical devices, the W634GU6RB-11 provides reliable, low-power memory. Its auto self-refresh and ZQ calibration features simplify design, while the 1.35V operation is ideal for battery-powered devices. The 4Gbit capacity supports complex applications without external storage.
Recommended
Data Center Servers
The W634GU6RB-11 is used in servers for caching and buffering, offering high bandwidth and low latency. Its 1866 MT/s data rate accelerates data-intensive workloads, and the 1.35V supply reduces power consumption in large server farms. The 4Gbit density supports large in-memory databases.
Recommended
Recommended Products Summary
Engineering reference data for W634GU6RB-11 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | W634GU6NB-11 | MT41K256M16TW-107 | IS43TR16512B-107MBL | K4B4G1646E-BYMA |
|---|---|---|---|---|---|
| Package | 96-VFBGA (7.5x13) | 96-VFBGA (7.5x13) | 96-FBGA (7.5x13) | 96-FBGA (7.5x13) | 96-FBGA (7.5x13) |
| Brand | Winbond Electronics | Winbond Electronics | Micron Technology | ISSI | Samsung Electronics |
| Memory Size | 4Gbit | 4Gbit | 4Gbit | 4Gbit | 4Gbit |
| Clock Frequency | 933 MHz | 933 MHz | 933 MHz | 933 MHz | 933 MHz |
| Supply Voltage | 1.35V | 1.35V | 1.35V | 1.35V | 1.35V |
| Operating Temperature | -40°C to +95°C | -40°C to +95°C | 0°C to +95°C | 0°C to +95°C | 0°C to +95°C |
| Data Rate | 1866 MT/s | 1866 MT/s | 1866 MT/s | 1866 MT/s | 1866 MT/s |
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant |
Key Differentiators
- Wide industrial temperature range (vs MT41K256M16TW-107)
- Low power 1.35V operation (vs K4B4G1646E-BYMA)
- High clock frequency (vs W634GU6NB-11)
Design Notes
Place decoupling capacitors (0.1uF and 1uF) close to each VDD and VDDQ pin to minimize power supply noise. Use a solid ground plane and follow JEDEC DDR3L layout guidelines for signal integrity, especially for high-speed DQ and DQS signals.
The W634GU6RB-11 operates up to +95°C. Ensure adequate airflow or heatsinking in high-temperature environments. The 96-VFBGA package has a thermal resistance that should be considered; refer to the datasheet for theta_JA values and design accordingly.
Use on-die termination (ODT) settings to match the bus impedance and reduce reflections. Enable write leveling for multi-rank configurations to ensure proper timing. Keep trace lengths matched for DQ/DQS groups to minimize skew.
Compliance Information
RoHS compliant and halogen-free per Winbond product page. Not AEC-Q100 qualified.
