K4B4G1646D-BYH9 - 4Gb DDR3L SDRAM 256Mx16 1333Mbps | Samsung
MPN： K4B4G1646D-BYH9 ✓ 啟用中K4B4G1646D-BYH9 概覽
DDR3L (Double Data Rate 3 Low Voltage) is a type of synchronous dynamic random-access memory (SDRAM) that operates at a lower voltage (1.35V) compared to standard DDR3 (1.5V), reducing power consumption by about 20% while maintaining similar performance. It is part of the DDR3 memory family, which succeeded DDR2 and is widely used in computing, networking, and embedded systems.
Key features include programmable CAS latency, write latency, on-die termination (ODT), and internal calibration for signal integrity. The device supports advanced DDR3 features such as posted CAS, programmable CWL, and asynchronous reset. It is designed for high-speed data transfer and is suitable for applications requiring reliable and efficient memory.
The K4B4G1646D-BYH9 uses a 4Gb D-die architecture, which is the fourth generation of Samsung's DDR3 die, offering improved performance and power efficiency. The 96FBGA package provides a compact footprint and excellent thermal characteristics, making it suitable for space-constrained designs.
Typical applications include personal computers, laptops, servers, networking equipment, automotive infotainment systems, and medical devices. Its low-voltage operation makes it ideal for battery-powered and energy-efficient systems.
When designing with this device, ensure proper signal integrity by following the layout guidelines in the datasheet, including controlled impedance traces and adequate decoupling. The device supports a temperature range of 0°C to 85°C, making it suitable for commercial and industrial environments.
直接替換替代品，適用於 K4B4G1646D-BYH9 — 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： K4B4G1646D-BYH9 （相同外形與佔位） — 差異在於 Package, CAS Latency, Operating Temperature, Data Rate, Supply Voltage.
K4B4G1646E-BYH9
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
K4B4G1646D-BHMA
✅ 直接替換聯絡詢價
查看資料表 →K4B4G1646D-BCMA
✅ 直接替換📋 參考替代品（不在目錄中）
K4B4G1646D-BYK0
✅ 直接替換聯絡詢價
查看資料表 →K4B4G1646E-BYK000
✅ 直接替換聯絡詢價
查看資料表 →K4B4G1646Q-HC
✅ 直接替換📋 參考替代品（不在目錄中）
K4B4G1646D-BYH9 最大額定值與電氣特性
| Density | 4 Gb |
| 組織 | 256M x 16 |
| 資料速率 | 1333 Mbps |
| 供應電壓 | 1.35 V |
| 工作溫度 | 0 ~ 85 °C |
| 封裝 | 96FBGA |
| Number of Banks | 8 |
| CAS 延遲 | Programmable |
| Write Latency | Programmable |
| On-Die Termination | Yes |
| Internal Calibration | Yes |
| Lead-Free | Yes |
| 無鹵素 | Yes |
| RoHS Compliant | Yes |
| Die Version | D-die |
K4B4G1646D-BYH9 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 B1 | VSS — Ground |
| 腳位 B2 | DQ2 — Data input/output 2 |
| 腳位 B3 | DQ3 — Data input/output 3 |
| 腳位 C1 | VDDQ — I/O power supply |
| 腳位 C2 | DQ4 — Data input/output 4 |
| 腳位 C3 | DQ5 — Data input/output 5 |
| 腳位 D1 | VSSQ — I/O ground |
| 腳位 D2 | DQ6 — Data input/output 6 |
| 腳位 D3 | DQ7 — Data input/output 7 |
典型應用
K4B4G1646D-BYH9 適用於 6 應用s: Personal Computers, Networking Equipment, Automotive Infotainment, Medical Devices, Industrial Automation, Consumer Electronics.
Personal Computers
The K4B4G1646D-BYH9 is ideal for desktop and laptop memory modules, providing 4Gb capacity and 1333 Mbps data rate. Its low 1.35V operation reduces power consumption, extending battery life in portable devices. The 96FBGA package allows compact module designs, and the 8-bank architecture supports efficient multitasking.
推薦
Networking Equipment
In routers and switches, the K4B4G1646D-BYH9 provides high-bandwidth memory for packet buffering and routing tables. Its 1333 Mbps data rate ensures fast data throughput, while the low voltage helps manage thermal dissipation in dense networking hardware. The on-die termination and internal calibration features maintain signal integrity in high-speed designs.
推薦
Automotive Infotainment
The K4B4G1646D-BYH9 supports automotive infotainment systems requiring reliable memory for navigation, audio, and video processing. Its 0-85°C temperature range covers typical cabin environments, and the 1.35V operation reduces heat generation. The 96FBGA package withstands vibration, making it suitable for in-vehicle electronics.
推薦
Medical Devices
Medical monitoring equipment benefits from the K4B4G1646D-BYH9's low power and high reliability. The 4Gb capacity supports data logging and real-time processing, while the 1.35V operation is suitable for battery-powered devices. The RoHS and halogen-free compliance meets medical environmental standards.
推薦
Industrial Automation
In industrial controllers and PLCs, the K4B4G1646D-BYH9 provides fast, reliable memory for real-time control algorithms. Its 1333 Mbps data rate ensures quick response times, and the 0-85°C range suits factory environments. The low voltage reduces power consumption in 24V systems, and the FBGA package offers robust soldering.
推薦
Consumer Electronics
Smart TVs and set-top boxes use the K4B4G1646D-BYH9 for smooth video streaming and app performance. The 4Gb capacity handles multiple tasks, and the 1.35V operation keeps devices cool and energy-efficient. The 96FBGA package enables slim designs, and the high data rate supports 4K content.
推薦
推薦產品摘要
工程參考資料，適用於 K4B4G1646D-BYH9 — 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 | K4B4G1646E-BYH9 | K4B4G1646D-BHMA | K4B4G1646D-BCMA |
|---|---|---|---|---|
| Package | 96FBGA | 96FBGA | 96FBGA | 96FBGA |
| Brand | Samsung Electronics | Samsung Electronics | Samsung Electronics | Samsung Electronics |
| Density | 4 Gb | 4 Gb | 4 Gb | 4 Gb |
| Organization | 256M x 16 | 256M x 16 | 256M x 16 | 256M x 16 |
| Supply Voltage | 1.35 V | 1.35 V | 1.35 V | 1.35 V |
| Die Version | D-die | E-die | D-die | D-die |
主要差異化特點
- Low-voltage 1.35V operation (對比Standard DDR3 at 1.5V)
- D-die architecture (對比Older C-die)
- 1333 Mbps data rate (對比K4B4G1646D-BHMA (unknown speed))
設計說明
Ensure controlled impedance traces for DQ and DQS signals to maintain signal integrity at 1333 Mbps. Use 50-ohm single-ended and 100-ohm differential routing. Keep trace lengths matched within +/- 10 mils to minimize skew.
Decouple VDD and VDDQ with 0.1uF and 1uF ceramic capacitors placed close to the pins. Use a solid ground plane to reduce noise. The 1.35V supply should have low ripple, ideally below 50mV, to ensure reliable operation.
The 96FBGA package has a thermal resistance of approximately 20°C/W. For high-speed operation, ensure adequate airflow or a thermal pad to keep junction temperature below 85°C. Monitor power dissipation, especially in dense layouts.
合規資訊
Lead-free and halogen-free per datasheet. RoHS compliant.
