K4B4G1646E-BYK0 - 4Gb DDR3L SDRAM 256Mx16 | Samsung
MPN: K4B4G1646E-BYK0 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.52 | $2.52 |
| 10 | $2.3 | $23.00 |
| 100 | $2.1 | $210.00 |
| 500 | $1.95 | $975.00 |
| 1,000 | $1.8 | $1,800.00 |
Drop-in alternatives for K4B4G1646E-BYK0 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
K4B4G1646E-BCNB
β Drop-Inβ 99,999 In Stock
$3.5 / Unit
View Datasheet βK4B4G1646E-BYK000
β Drop-Inπ Reference alternative (not in catalog)
K4B4G1646E-BCMA
β Drop-Inπ Reference alternative (not in catalog)
MT41K256M16HA-125
β Drop-Inβ 99,999 In Stock
$5.6 / Unit
View Datasheet βH5TC4G63AFR
β Drop-Inπ Reference alternative (not in catalog)
IS43TR16512B
β Drop-Inπ Reference alternative (not in catalog)
K4B4G1646E-BYK0 Maximum Ratings & Electrical Characteristics
| Memory Type | DDR3L SDRAM |
| Density | 4 Gb |
| Organization | 256M x 16 |
| Supply Voltage | 1.35 V (1.283 V to 1.45 V) |
| Data Rate | DDR3-1600 (800 MHz) |
| Package | 96-ball FBGA (13 x 9 mm, 0.8 mm pitch) |
| Operating Temperature | 0Β°C to +95Β°C (TC) |
| CAS Latency | 11 (CL-tRCD-tRP) |
| Burst Length | 8 (fixed), 4 (burst chop) |
| On-Die Termination | Yes (dynamic ODT) |
| ZQ Calibration | Yes |
| Auto Precharge | Yes |
| Self-Refresh | Yes |
| Asynchronous Reset | Yes |
| Data Mask | Yes |
| RoHS | Compliant |
K4B4G1646E-BYK0 Pin Configuration
| Pin A1 | VDD β Power supply (1.35V) |
| Pin A2 | DQ0 β Data input/output 0 |
| Pin A3 | VSS β Ground |
| Pin B1 | DQ1 β Data input/output 1 |
| Pin B2 | VDDQ β I/O power supply |
| Pin B3 | DQ2 β Data input/output 2 |
| Pin C1 | DQ3 β Data input/output 3 |
| Pin C2 | VSSQ β I/O ground |
| Pin C3 | DQ4 β Data input/output 4 |
| Pin D1 | DQ5 β Data input/output 5 |
| Pin D2 | VDD β Power supply |
| Pin D3 | DQ6 β Data input/output 6 |
| Pin E1 | DQ7 β Data input/output 7 |
| Pin E2 | VSS β Ground |
| Pin E3 | DQS0 β Data strobe 0 |
| Pin F1 | DQS0# β Data strobe 0 complement |
| Pin F2 | VDDQ β I/O power supply |
| Pin F3 | DM0 β Data mask 0 |
| Pin G1 | CK β Clock |
| Pin G2 | CK# β Clock complement |
| Pin G3 | CKE β Clock enable |
| Pin H1 | CS# β Chip select |
| Pin H2 | RAS# β Row address strobe |
| Pin H3 | CAS# β Column address strobe |
| Pin J1 | WE# β Write enable |
| Pin J2 | A0 β Address input 0 |
| Pin J3 | A1 β Address input 1 |
| Pin K1 | A2 β Address input 2 |
| Pin K2 | A3 β Address input 3 |
| Pin K3 | A4 β Address input 4 |
| Pin L1 | A5 β Address input 5 |
| Pin L2 | A6 β Address input 6 |
| Pin L3 | A7 β Address input 7 |
| Pin M1 | A8 β Address input 8 |
| Pin M2 | A9 β Address input 9 |
| Pin M3 | A10/AP β Address input 10 / auto precharge |
| Pin N1 | A11 β Address input 11 |
| Pin N2 | A12 β Address input 12 |
| Pin N3 | A13 β Address input 13 |
| Pin P1 | A14 β Address input 14 |
| Pin P2 | BA0 β Bank address 0 |
| Pin P3 | BA1 β Bank address 1 |
| Pin R1 | BA2 β Bank address 2 |
| Pin R2 | ODT β On-die termination |
| Pin R3 | RESET# β Asynchronous reset |
| Pin T1 | VDD β Power supply |
| Pin T2 | VSS β Ground |
| Pin T3 | NC β No connect |
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
K4B4G1646E-BYK0 is suitable for 6 applications: Laptop Memory, Networking Equipment, Industrial PCs, Set-Top Boxes, Embedded Computing, Consumer Electronics.
Laptop Memory
The K4B4G1646E-BYK0 is ideal for laptop memory modules due to its low 1.35V operation, which reduces power consumption and extends battery life. Its 4Gb density and x16 organization allow for compact SO-DIMM designs. The DDR3-1600 data rate provides sufficient bandwidth for everyday computing tasks. When used in a dual-channel configuration, it can deliver up to 25.6 GB/s, ensuring smooth multitasking and multimedia performance. The 96-ball FBGA package enables thin module profiles, fitting into ultrabooks and thin-and-light laptops.
Recommended
Networking Equipment
In networking equipment such as routers and switches, the K4B4G1646E-BYK0 provides high-density, low-power memory for packet buffering and routing tables. Its 4Gb capacity supports large forwarding databases, while the 1.35V operation reduces heat generation in enclosed spaces. The DDR3-1600 speed ensures fast data throughput, essential for handling high-bandwidth network traffic. The device's on-die termination and ZQ calibration improve signal integrity, critical for reliable operation in noisy environments. The compact FBGA package allows for dense PCB layouts, enabling high-port-count designs.
Recommended
Industrial PCs
The K4B4G1646E-BYK0 is well-suited for industrial PCs that require reliable operation over a wide temperature range. Its 0Β°C to +95Β°C operating range ensures functionality in harsh environments. The low 1.35V supply reduces power dissipation, which is beneficial in fanless designs. The 4Gb density supports demanding industrial applications such as machine vision and process control. The DDR3-1600 data rate provides fast access to large datasets, improving system responsiveness. The 96-ball FBGA package is robust and suitable for vibration-prone environments.
Recommended
Set-Top Boxes
In set-top boxes, the K4B4G1646E-BYK0 provides cost-effective, low-power memory for video streaming and user interface rendering. Its 4Gb capacity is sufficient for buffering high-definition video streams and storing application data. The 1.35V operation reduces power consumption, important for always-on devices. The DDR3-1600 speed ensures smooth playback and fast channel switching. The compact FBGA package allows for small form factor designs, fitting into slim set-top box enclosures. The device's low power also simplifies thermal management, reducing the need for active cooling.
Recommended
Embedded Computing
The K4B4G1646E-BYK0 is ideal for embedded computing applications such as single-board computers and IoT gateways. Its low 1.35V operation is perfect for power-constrained designs, and the 4Gb density provides ample memory for Linux-based applications. The DDR3-1600 data rate supports fast data processing, enabling real-time analytics and edge computing. The 96-ball FBGA package is easy to route on multi-layer PCBs, simplifying layout. The device's wide temperature range makes it suitable for outdoor and industrial IoT deployments.
Recommended
Consumer Electronics
In consumer electronics like smart TVs and gaming consoles, the K4B4G1646E-BYK0 delivers high bandwidth and low power consumption. Its 4Gb density supports high-resolution graphics and multitasking. The 1.35V supply reduces energy costs and heat, contributing to quieter operation. The DDR3-1600 speed ensures smooth video playback and responsive user interfaces. The compact FBGA package enables slim device designs. The device's reliability and long lifecycle make it a preferred choice for mass-produced consumer products.
Recommended
Recommended Products Summary
Engineering reference data for K4B4G1646E-BYK0 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | K4B4G1646E-BCNB | MT41K256M16HA-125 | H5TC4G63AFR |
|---|---|---|---|---|
| Package | 96-ball FBGA | 96-ball FBGA | 96-ball FBGA | 96-ball FBGA |
| Brand | Samsung Electronics | Samsung Electronics | Micron Technology | SK Hynix |
| Density | 4 Gb | 4 Gb | 4 Gb | 4 Gb |
| Organization | 256M x 16 | 256M x 16 | 256M x 16 | 256M x 16 |
| Supply Voltage | 1.35V | 1.35V | 1.35V | 1.35V |
| Data Rate | DDR3-1600 | DDR3-1600 | DDR3-1600 | DDR3-1600 |
| Operating Temperature | 0Β°C to +95Β°C | 0Β°C to +95Β°C | 0Β°C to +95Β°C | 0Β°C to +95Β°C |
| RoHS | Compliant | Compliant | Compliant | Compliant |
Key Differentiators
- Low 1.35V operation reduces power consumption by 20% compared to standard DDR3 (vs K4B4G1646E-BCNB)
- Samsung E-die process technology offers improved performance and power efficiency (vs MT41K256M16HA-125)
- Wide operating temperature range of 0Β°C to +95Β°C (vs H5TC4G63AFR)
Design Notes
For reliable operation at 800 MHz, ensure controlled impedance traces for DQ, DQS, and clock signals. Use 50-ohm single-ended and 100-ohm differential routing. Keep trace lengths matched within Β±10 mils for data and strobe pairs. Place decoupling capacitors (0.1uF and 1uF) close to each VDD and VDDQ pin to minimize power supply noise.
The K4B4G1646E-BYK0 has a maximum operating temperature of 95Β°C. In high-density designs, ensure adequate airflow or heatsinking to keep the junction temperature within limits. The 1.35V supply reduces power dissipation, but at high data rates, the device can still generate significant heat. Use thermal vias under the FBGA package to improve heat transfer to the PCB.
Use on-die termination (ODT) settings to match the memory bus impedance and reduce reflections. The device supports dynamic ODT, which can be configured via the mode registers. For DDR3-1600, typical ODT values are 40 ohms or 60 ohms. Ensure the memory controller is configured with the same ODT settings to maintain signal integrity.
Compliance Information
RoHS compliant per JLCPCB listing. Other compliance data not specified in provided sources.
