W634GU6RB12J - 4Gb DDR3L SDRAM 933MHz | Winbond
MPN： W634GU6RB12J ✓ 啟用中W634GU6RB12J 概覽
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.
直接替換替代品，適用於 W634GU6RB12J — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： W634GU6RB12J （相同外形與佔位） — 差異在於 Operating Temperature, Package, Supply Voltage, Memory Size, CAS Latency.
W634GU6RB-11
✅ 直接替換✗ 缺貨
$13.5227 / 單位
查看資料表 →W634GU6NB12J
✅ 直接替換📋 參考替代品（不在目錄中）
W634GU6NB12I
✅ 直接替換📋 參考替代品（不在目錄中）
MT41K256M16TW-107
✅ 直接替換 ⚠️ 規格未經驗證✗ 缺貨
$14.1 / 單位
查看資料表 →IS43TR16512B-15HB
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
W634GU6RB12J 最大額定值與電氣特性
| 記憶體類型 | SDRAM - DDR3L |
| 記憶體容量 | 4Gbit |
| 組織 | 256M x 16 |
| 介面 | Parallel |
| Clock Frequency | 933 MHz |
| Access Time | 20 ns |
| 供應電壓 | 1.35V |
| 封裝 | 96-VFBGA (7.5x13) |
| 工作溫度 | -40°C to +105°C (TCASE) |
| Speed Grade | 12J (DDR3L-1866) |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
| 無鹵素 | Yes |
| Burst Length | 8 |
| On-Die Termination | Yes |
W634GU6RB12J 腳位配置
| 腳位 A1 | VDD — Power supply |
| 腳位 A2 | DQ0 — Data input/output 0 |
| 腳位 A3 | DQ1 — Data input/output 1 |
| 腳位 A4 | VSS — Ground |
| 腳位 A5 | DQ2 — Data input/output 2 |
| 腳位 A6 | DQ3 — Data input/output 3 |
| 腳位 A7 | VDD — Power supply |
| 腳位 A8 | DQ4 — Data input/output 4 |
| 腳位 A9 | DQ5 — Data input/output 5 |
| 腳位 A10 | VSS — Ground |
| 腳位 A11 | DQ6 — Data input/output 6 |
| 腳位 A12 | DQ7 — Data input/output 7 |
典型應用
W634GU6RB12J 適用於 6 應用s: 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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 W634GU6RB12J — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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) |
主要差異化特點
- Higher speed grade (DDR3L-1866) compared to -11 variant (對比W634GU6RB-11)
- Extended temperature range up to 105°C (對比W634GU6NB12I)
- Same package and pinout as other Winbond DDR3L variants (對比W634GU6NB12J)
設計說明
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.
合規資訊
Winbond states all Flash products are Halogen-Free and RoHS compliant. AEC-Q100 not applicable for DRAM.
