K4B4G1646E-BYMA - 4Gb DDR3L SDRAM 1866MHz | Samsung
N.º de pieza: K4B4G1646E-BYMA ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $24.5455 | $24,55 |
| 10 | $17.7273 | $177,27 |
| 100 | $15.6818 | $1.568,18 |
| 500 | $15 | $7.500,00 |
| 1.000 | $14.3182 | $14.318,20 |
K4B4G1646E-BYMA Descripción general
DDR3L SDRAM is a type of double data rate synchronous dynamic random-access memory that operates at a lower voltage (1.35V) compared to standard DDR3 (1.5V), reducing power consumption by up to 20% while maintaining compatibility with DDR3L and DDR3 systems. It is part of the memory hierarchy in computing systems, serving as main memory for processors, and is widely used in laptops, servers, embedded systems, and networking equipment.
Key features include a 4Gb density organized as 256M x 16, a 1.35V power supply (with 1.28V to 1.575V range), a 933 MHz clock frequency, and a typical operating current of 14mA. The device supports auto precharge, asynchronous reset, and dynamic on-chip termination, enhancing performance and ease of use. The FBGA-96 package offers a compact footprint suitable for space-constrained designs.
Technically, the K4B4G1646E-BYMA uses Samsung's advanced E-die process technology, providing high-speed operation with low power. It features programmable CAS latency, burst length, and output drive strength, allowing system designers to optimize performance. The device includes a temperature sensor for thermal management and supports on-die termination (ODT) for improved signal quality.
Typical applications include DDR3L memory modules for laptops and ultrabooks, networking equipment such as routers and switches, industrial computing systems, and embedded applications requiring high-density, low-power memory. Its 1.35V operation makes it ideal for power-sensitive designs.
When designing with this device, ensure proper decoupling capacitors near the power pins and follow the layout guidelines in the datasheet to minimize signal integrity issues. The device requires a stable 1.35V supply and a reference voltage (VREF) for optimal operation.
Alternativas directas para K4B4G1646E-BYMA — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con K4B4G1646E-BYMA (mismo factor de forma y huella) — difiere en Package, Supply Voltage, Data Rate, Burst Length, CAS Latency.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
K4B4G1646E-BCNB
✓ En stock
$13.5227 / unidad
Ver hoja de datos →K4B4G1646E-BYK000
✓ En stock
$0.5619 / unidad
Ver hoja de datos →K4B4G1646E-BCMA
✓ En stock
$3.7734 / unidad
Ver hoja de datos →MT41K512M16HA-125
📋 Alternativa de referencia (no en el catálogo)
H5TQ4G63CFR-PBC
📋 Alternativa de referencia (no en el catálogo)
AS4C256M16D3LC-10BCN
📋 Alternativa de referencia (no en el catálogo)
K4B4G1646E-BYMA Valores máximos y características eléctricas
| Tipo de memoria | DDR3L SDRAM |
| Density | 4 Gb |
| Organización de memoria | 256M x 16 |
| Tensión de alimentación | 1.35 V (1.28 V to 1.575 V) |
| Clock Frequency | 933 MHz |
| Velocidad de datos | 1866 Mbps/pin |
| Temperatura de funcionamiento | 0°C to +95°C |
| Operating Current | 14 mA |
| Standby Current | 2 mA, 3 mA |
| Encapsulado | FBGA-96 |
| Tipo de montaje | Surface Mount |
| RoHS | Compliant |
| Número de pines | 96 |
Configuración de pines de K4B4G1646E-BYMA
| 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 | VDDQ — DQ power supply |
| Pin B2 | DQ2 — Data input/output 2 |
| Pin B3 | DQ3 — Data input/output 3 |
| Pin B4 | VSSQ — DQ ground |
| Pin C1 | VREFCA — Reference voltage for command/address |
| Pin C2 | A0 — Address input 0 |
| Pin C3 | A1 — Address input 1 |
| Pin C4 | A2 — Address input 2 |
Aplicaciones típicas
K4B4G1646E-BYMA es adecuado para 6 aplicacións: Laptop Memory Modules, Networking Equipment, Industrial Computing, Embedded Systems, Data Center Servers, Consumer Electronics.
Laptop Memory Modules
The K4B4G1646E-BYMA's 1.35V operation and 4Gb density make it ideal for DDR3L SO-DIMMs in laptops and ultrabooks. Its low power consumption extends battery life, while the 1866 Mbps data rate supports demanding multitasking. The FBGA-96 package allows compact module designs. When used in SO-DIMMs, it pairs with a DDR3L controller and requires careful routing to maintain signal integrity at high speeds.
Recomendado
Networking Equipment
In routers and switches, the K4B4G1646E-BYMA provides high-bandwidth packet buffering with low latency. Its 1866 Mbps data rate handles high-throughput traffic, while the 1.35V supply reduces power in always-on equipment. The device's on-die termination and ZQ calibration ensure signal quality on dense PCBs. It is often paired with a network processor and requires proper decoupling for stable operation.
Recomendado
Industrial Computing
The K4B4G1646E-BYMA operates over 0°C to +95°C, suitable for industrial PCs and embedded systems. Its 4Gb density supports applications like machine vision and process control. The 1.35V operation reduces heat generation, important in sealed enclosures. The FBGA-96 package withstands vibration, and the device's auto precharge simplifies memory management. It works with industrial-grade controllers and benefits from conformal coating in harsh environments.
Recomendado
Embedded Systems
For embedded applications like medical devices and point-of-sale terminals, the K4B4G1646E-BYMA offers a balance of density, speed, and power. Its 4Gb capacity supports complex software, while 1.35V operation is compatible with battery-powered designs. The device's small FBGA-96 footprint saves board space. It is typically used with an application processor and requires careful power sequencing.
Recomendado
Data Center Servers
In servers, the K4B4G1646E-BYMA can be used in DDR3L RDIMMs or UDIMMs for cost-effective memory expansion. Its 1866 Mbps speed supports high-bandwidth workloads, and the 1.35V supply reduces power in large memory arrays. The device's E-die technology ensures reliability under continuous operation. It is often paired with server chipsets and requires thermal management in high-density configurations.
Recomendado
Consumer Electronics
The K4B4G1646E-BYMA is used in smart TVs, set-top boxes, and gaming consoles for main memory. Its 4Gb density supports HD video streaming and gaming, while 1.35V operation keeps power low. The FBGA-96 package enables slim device designs. It works with SoCs and requires proper ESD protection in consumer environments.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para K4B4G1646E-BYMA — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | K4B4G1646E-BYK000 | MT41K512M16HA-125 | H5TQ4G63CFR-PBC |
|---|---|---|---|---|
| Package | FBGA-96 | FBGA-96 | FBGA-96 | FBGA-96 |
| 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 | 1866 Mbps | 1866 Mbps | 1866 Mbps | 1866 Mbps |
| Operating Temperature | 0°C to +95°C | 0°C to +95°C | 0°C to +95°C | 0°C to +95°C |
| RoHS | Compliant | Compliant | Compliant | Compliant |
Diferenciadores clave
- Samsung E-die process technology (frente a MT41K512M16HA-125)
- 1.35V low-power operation (frente a H5TQ4G63CFR-PBC)
- Long-term availability from Samsung (frente a AS4C256M16D3LC-10BCN)
Notas de diseño
For high-speed DDR3L routing, maintain controlled impedance of 40-50 ohms for DQ/DQS signals and 50-60 ohms for address/command signals. Keep trace lengths matched within 100 mils for DQ/DQS groups. Place decoupling capacitors (0.1uF and 0.01uF) close to each VDD and VDDQ pin, and a 10uF bulk capacitor near the power entry point. Follow the layout guidelines in the Samsung datasheet to minimize crosstalk and signal reflection.
The K4B4G1646E-BYMA requires a stable 1.35V supply with low ripple. Use a dedicated DDR3L power regulator with adequate current capability (at least 1A for a single device). Ensure the VREFCA and VREFDQ voltages are generated from a precision divider and filtered with a 0.1uF capacitor. Power sequencing should follow JEDEC standards: apply VDD before VDDQ, and VDDQ before VREF.
The device operates up to +95°C, but for reliable long-term operation, keep the junction temperature below 85°C. In high-density applications, ensure adequate airflow or use a heatsink. The FBGA-96 package has a thermal resistance of approximately 20°C/W (theta_JA) with proper PCB thermal vias. Calculate power dissipation as VDD * IDD (typical 14mA) plus switching losses.
Información de cumplimiento
RoHS compliant per JLCPCB listing. Other compliance data not specified in provided sources.
