K4B4G1646D-BYH9 - 4Gb DDR3L SDRAM 256Mx16 1333Mbps | Samsung
料号： K4B4G1646D-BYH9 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.5 | $3.50 |
| 10 | $3.2 | $32.00 |
| 100 | $2.9 | $290.00 |
| 500 | $2.6 | $1,300.00 |
| 1,000 | $2.3 | $2,300.00 |
K4B4G1646D-BYH9 概述
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.
直接替换替代料： K4B4G1646D-BYH9 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： K4B4G1646D-BYH9 （相同外形与封装尺寸） ——差异在于 Package, CAS Latency, Operating Temperature, Data Rate, Supply Voltage.
快速对比工具——选择替代料号进行并排对比：
K4B4G1646E-BYH9
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
K4B4G1646D-BHMA
✅ 直接替换✓ 有现货
$2.9 / 个
查看数据手册 →K4B4G1646D-BCMA
✅ 直接替换📋 参考替代料（不在目录中）
K4B4G1646D-BYK0
✅ 直接替换✓ 有现货
$2.9 / 个
查看数据手册 →K4B4G1646E-BYK000
✅ 直接替换✓ 有现货
$0.5619 / 个
查看数据手册 →K4B4G1646Q-HC
✅ 直接替换📋 参考替代料（不在目录中）
K4B4G1646D-BYH9 最大额定值与电气特性
| Density | 4 Gb |
| 存储组织 | 256M x 16 |
| 数据速率 | 1333 Mbps |
| 电源电压 | 1.35 V |
| 工作温度 | 0 ~ 85 °C |
| 封装 | 96FBGA |
| Number of Banks | 8 |
| CAS 延迟 | Programmable |
| Write Latency | Programmable |
| On-Die Termination | Yes |
| Internal Calibration | Yes |
| Lead-Free | Yes |
| 无卤 | Yes |
| RoHS Compliant | Yes |
| Die Version | D-die |
K4B4G1646D-BYH9 引脚配置
| 引脚 A1 | VDD — Power supply |
| 引脚 A2 | DQ0 — Data input/output 0 |
| 引脚 A3 | DQ1 — Data input/output 1 |
| 引脚 B1 | VSS — Ground |
| 引脚 B2 | DQ2 — Data input/output 2 |
| 引脚 B3 | DQ3 — Data input/output 3 |
| 引脚 C1 | VDDQ — I/O power supply |
| 引脚 C2 | DQ4 — Data input/output 4 |
| 引脚 C3 | DQ5 — Data input/output 5 |
| 引脚 D1 | VSSQ — I/O ground |
| 引脚 D2 | DQ6 — Data input/output 6 |
| 引脚 D3 | DQ7 — Data input/output 7 |
典型应用
K4B4G1646D-BYH9 适用于 6 应用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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： K4B4G1646D-BYH9 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Low-voltage 1.35V operation （对比 Standard DDR3 at 1.5V)
- D-die architecture （对比 Older C-die)
- 1333 Mbps data rate （对比 K4B4G1646D-BHMA (unknown speed))
设计说明
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.
合规信息
Lead-free and halogen-free per datasheet. RoHS compliant.
