W634GU6RB12I - 4Gb DDR3L SDRAM x16 800MHz | Winbond
MPN: W634GU6RB12I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.8 | $78.00 |
| 100 | $6.9 | $690.00 |
| 500 | $6.2 | $3,100.00 |
| 1,000 | $5.6 | $5,600.00 |
Drop-in alternatives for W634GU6RB12I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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View Datasheet →W634GU6RB12I Maximum Ratings & Electrical Characteristics
| Memory Type | DDR3L SDRAM |
| Memory Size | 4Gbit (256M x 16) |
| Data Rate | 800 MHz (DDR3L-1600) |
| Supply Voltage | 1.35V |
| Row Cycle Time (tRC) | 20 ns |
| Package | 96-VFBGA (7.5x13mm) |
| Operating Temperature | -40°C to +95°C (TCASE) |
| Interface | Parallel |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Halogen-Free | Yes |
| Speed Grade | -12I (DDR3L-1600 11-11-11) |
| Organization | 256M x 16 |
| CAS Latency | 11 |
| Burst Length | 8 |
W634GU6RB12I 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 B1 | DQ2 — Data input/output 2 |
| Pin B2 | DQ3 — Data input/output 3 |
| Pin B3 | VDDQ — I/O power supply |
| Pin B4 | DQ4 — Data input/output 4 |
| Pin C1 | DQ5 — Data input/output 5 |
| Pin C2 | DQ6 — Data input/output 6 |
| Pin C3 | DQ7 — Data input/output 7 |
| Pin C4 | VSS — Ground |
| Pin D1 | DQS0 — Data strobe 0 |
| Pin D2 | DQS0# — Data strobe 0 complement |
| Pin D3 | VDD — Power supply |
| Pin D4 | DM0 — Data mask 0 |
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
W634GU6RB12I is suitable for 6 applications: Industrial Automation, Networking Equipment, Embedded Computing, Automotive Infotainment, Medical Devices, Test and Measurement.
Industrial Automation
The W634GU6RB12I provides high-density, low-power memory for industrial controllers and PLCs. Its industrial temperature range (-40°C to +95°C) ensures reliable operation in factory environments. The 800MHz data rate supports fast data processing for real-time control loops, while the 1.35V operation reduces heat generation in sealed enclosures. With 4Gbit capacity, it can store large program and data buffers for complex automation tasks.
Recommended
Networking Equipment
In routers, switches, and network appliances, the W634GU6RB12I offers high bandwidth and low latency for packet buffering and forwarding tables. The DDR3L-1600 speed ensures quick access to routing data, while the 4Gbit density supports large lookup tables. The 1.35V operation is ideal for power-constrained networking devices, and the industrial temperature grade allows deployment in uncontrolled environments like remote telecom cabinets.
Recommended
Embedded Computing
The W634GU6RB12I is suitable for embedded computing modules, single-board computers, and edge AI devices. Its 4Gbit capacity provides ample memory for operating systems and applications, while the 800MHz data rate ensures responsive performance. The compact 96-VFBGA package saves PCB space, and the industrial temperature range supports outdoor and rugged deployments. Low power consumption extends battery life in portable embedded systems.
Recommended
Automotive Infotainment
In automotive infotainment systems, the W634GU6RB12I provides reliable memory for navigation, multimedia, and connectivity features. The industrial temperature range (-40°C to +95°C) meets automotive requirements, and the 1.35V operation reduces power draw from the vehicle's electrical system. The 4Gbit density supports large map databases and media buffers, while the 800MHz speed enables smooth graphics rendering and fast boot times.
Recommended
Medical Devices
The W634GU6RB12I is used in medical imaging, patient monitoring, and diagnostic equipment where reliable memory is critical. Its industrial temperature range ensures operation in clinical environments, and the low power consumption is beneficial for battery-powered portable devices. The 4Gbit capacity supports high-resolution image storage and real-time signal processing, while the 800MHz data rate enables fast data acquisition and analysis.
Recommended
Test and Measurement
In oscilloscopes, logic analyzers, and signal generators, the W634GU6RB12I provides high-speed data buffering for waveform capture and analysis. The 800MHz data rate supports high-bandwidth sampling, while the 4Gbit density allows long recording times. The industrial temperature range ensures accuracy in lab and field environments, and the low power consumption reduces heat in benchtop instruments.
Recommended
Recommended Products Summary
Engineering reference data for W634GU6RB12I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | W634GU6RB12J | W634GU6RB-12 | MT41K256M16HA-125IT:E |
|---|---|---|---|---|
| Package | 96-VFBGA (7.5x13mm) | 96-VFBGA (7.5x13mm) | 96-VFBGA (7.5x13mm) | 96-FBGA (9x13mm) |
| Brand | Winbond Electronics | Winbond Electronics | Winbond Electronics | Micron Technology |
| Memory Size | 4Gbit | 4Gbit | 4Gbit | 4Gbit |
| Data Rate | 800MHz (DDR3L-1600) | 800MHz (DDR3L-1600) | 800MHz (DDR3L-1600) | 800MHz (DDR3L-1600) |
| Supply Voltage | 1.35V | 1.35V | 1.35V | 1.35V |
| Operating Temperature | -40°C to +95°C | -40°C to +105°C | 0°C to +85°C | -40°C to +95°C |
| CAS Latency | 11 | 11 | 11 | 11 |
| RoHS Compliant | Yes | Yes | Yes | Yes |
Key Differentiators
- Industrial temperature range up to +95°C (vs W634GU6RB-12)
- DDR3L-1600 speed grade (vs W634GU6RB11I)
- Low power 1.35V operation (vs MT41K256M16HA-125IT:E)
Design Notes
For high-speed DDR3L signals, maintain controlled impedance of 40-50 ohms for data lines and 50-60 ohms for address/command lines. Keep trace lengths matched within +/- 20 mils for DQ/DQS groups. Use a solid ground plane beneath the memory device and minimize vias to reduce signal reflections.
Decouple the VDD and VDDQ pins with 0.1uF and 1uF ceramic capacitors placed as close to the balls as possible. Use a 10uF bulk capacitor on the VDD rail. Ensure the power supply can handle transient currents during read/write operations, which can exceed 1A.
The industrial temperature grade allows operation up to +95°C case temperature. Ensure adequate airflow or heatsinking in high-ambient environments. The VFBGA package has a thermal resistance of approximately 20°C/W; calculate junction temperature to stay within limits.
Compliance Information
RoHS compliant and halogen-free per Winbond product page. REACH and conflict minerals status not specified in provided data.
