K4B4G1646D-BCMA0 - 4Gb DDR3 SDRAM 256Mx16 | Samsung
MPN: K4B4G1646D-BCMA0 β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.8 | $78.00 |
| 100 | $7.2 | $720.00 |
| 500 | $6.5 | $3,250.00 |
| 1,000 | $5.9 | $5,900.00 |
Drop-in alternatives for K4B4G1646D-BCMA0 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:
K4B4G1646D-BCMA
β Drop-Inπ Reference alternative (not in catalog)
K4B4G1646D-BFMA
β Drop-Inβ 99,999 In Stock
$6 / Unit
View Datasheet βK4B4G1646D-BYMA
β Drop-Inπ Reference alternative (not in catalog)
K4B4G1646E-BMMA
β Drop-Inπ Reference alternative (not in catalog)
MT41K256M16HA-125
β Drop-Inβ 99,999 In Stock
$5.6 / Unit
View Datasheet βK4B4G1646D-BCMA0 Maximum Ratings & Electrical Characteristics
| Memory Type | DDR3 SDRAM |
| Memory Size | 4 Gb |
| Organization | 256M x 16 |
| Data Rate | 1866 Mbps |
| Supply Voltage | 1.5 V |
| Operating Temperature | 0Β°C to 85Β°C |
| Package | 96-FBGA |
| Mounting Type | Surface Mount |
| Memory Interface | Parallel |
| RoHS | Compliant |
| Halogen Free | Yes |
| Lead Free | Yes |
| Lifecycle Status | EOL |
| Technology | DDR3 |
| Number of Terminals | 96 |
K4B4G1646D-BCMA0 Pin Configuration
| Pin A1 | VDD β Power supply |
| Pin A2 | DQ0 β Data input/output 0 |
| Pin A3 | DQ1 β Data input/output 1 |
| Pin B1 | VSS β Ground |
| Pin B2 | DQ2 β Data input/output 2 |
| Pin B3 | DQ3 β Data input/output 3 |
| Pin C1 | VDDQ β I/O power supply |
| Pin C2 | DQ4 β Data input/output 4 |
| Pin C3 | DQ5 β Data input/output 5 |
| Pin D1 | VSSQ β I/O ground |
| Pin D2 | DQ6 β Data input/output 6 |
| Pin D3 | DQ7 β Data input/output 7 |
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
K4B4G1646D-BCMA0 is suitable for 6 applications: Laptop and Desktop Memory, Networking Equipment, Embedded Systems, Consumer Electronics, Industrial Automation, Medical Devices.
Laptop and Desktop Memory
The K4B4G1646D-BCMA0 provides 4Gb DDR3-1866 memory for laptops and desktops, offering high bandwidth for multitasking and multimedia. Its 256Mx16 organization suits dual-channel configurations, and the 1.5V operation reduces power consumption. When used as main memory, it interfaces with the CPU's memory controller via a parallel bus, requiring careful signal integrity design. The 96-FBGA package allows compact module designs, and the 1866 Mbps data rate supports fast application loading and smooth system performance.
Recommended
Networking Equipment
In routers and switches, the K4B4G1646D-BCMA0 serves as packet buffer memory, handling high-throughput data. Its 1866 Mbps speed and 4Gb capacity enable efficient packet processing and forwarding. The device's auto precharge and ZQ calibration features improve signal integrity in high-speed designs. Placed on the PCB near the network processor, it requires proper termination and decoupling to maintain signal quality. The commercial temperature range supports typical networking environments, and the FBGA package aids in thermal management.
Recommended
Embedded Systems
The K4B4G1646D-BCMA0 is ideal for embedded systems like set-top boxes and industrial controllers, providing reliable memory for firmware and data storage. Its 4Gb density and 256Mx16 organization offer ample space for applications, while the 1.5V supply minimizes power draw. The device's dynamic on-chip termination (DTC) simplifies PCB layout by reducing external components. Operating from 0Β°C to 85Β°C, it suits most industrial environments. The FBGA package's small footprint is advantageous in space-limited designs.
Recommended
Consumer Electronics
In consumer devices like smart TVs and gaming consoles, the K4B4G1646D-BCMA0 provides high-speed memory for graphics and application processing. Its 1866 Mbps data rate supports smooth video playback and responsive user interfaces. The 4Gb capacity allows multiple applications to run concurrently. The device's low operating voltage contributes to energy efficiency, important for battery-powered or energy-conscious products. The FBGA package enables slim device designs, and the RoHS compliance meets environmental standards.
Recommended
Industrial Automation
The K4B4G1646D-BCMA0 is used in industrial automation for data logging and real-time control. Its 4Gb capacity stores process data, while the 1866 Mbps speed ensures quick access. The device's robustness over 0Β°C to 85Β°C makes it suitable for factory floors. With features like auto precharge and ZQ calibration, it maintains reliable operation in noisy environments. The FBGA package's thermal characteristics help dissipate heat in enclosed cabinets. Proper ESD protection is recommended in industrial settings.
Recommended
Medical Devices
In medical devices such as patient monitors and diagnostic equipment, the K4B4G1646D-BCMA0 provides reliable memory for data acquisition and processing. Its 4Gb density supports large datasets, and the 1866 Mbps speed enables real-time analysis. The device's low power consumption is beneficial for portable devices. Operating within 0Β°C to 85Β°C, it meets typical medical environment requirements. The FBGA package allows compact device designs, and RoHS compliance ensures safety. Signal integrity is critical in medical applications, so follow layout guidelines.
Recommended
Recommended Products Summary
Engineering reference data for K4B4G1646D-BCMA0 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | K4B4G1646D-BCMA | K4B4G1646D-BFMA | K4B4G1646D-BYMA | K4B4G1646E-BMMA | MT41K256M16HA-125 |
|---|---|---|---|---|---|---|
| Package | 96-FBGA | 96-FBGA | 96-FBGA | 96-FBGA | 96-FBGA | 96-FBGA |
| Brand | Samsung Electronics | Samsung Electronics | Samsung Electronics | Samsung Electronics | Samsung Electronics | Micron Technology |
| Memory Size | 4 Gb | 4 Gb | 4 Gb | 4 Gb | 4 Gb | 4 Gb |
| Organization | 256M x 16 | 256M x 16 | 256M x 16 | 256M x 16 | 256M x 16 | 256M x 16 |
| Data Rate | 1866 Mbps | 1866 Mbps | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | 1600 Mbps |
| Supply Voltage | 1.5 V | 1.5 V | 1.5 V | 1.5 V | 1.5 V | 1.5 V |
| Operating Temperature | 0Β°C to 85Β°C | 0Β°C to 85Β°C | [DATA_NEEDED] | 0Β°C to 85Β°C | [DATA_NEEDED] | 0Β°C to 95Β°C |
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Key Differentiators
- High data rate of 1866 Mbps (vs MT41K256M16HA-125)
- Samsung D-die reliability (vs K4B4G1646E-BMMA)
- RoHS and halogen-free compliance (vs MT41K256M16HA-125)
Design Notes
Place decoupling capacitors (0.1uF and 1uF) close to each VDD and VDDQ pin to minimize power supply noise. Use a solid ground plane and route data lines with matched lengths to ensure signal integrity at 1866 Mbps. Follow the layout guidelines in the Samsung datasheet for the 96-FBGA package.
The K4B4G1646D-BCMA0 operates up to 85Β°C. Ensure adequate airflow or a thermal pad to dissipate heat in high-density designs. The FBGA package has a thermal resistance that should be considered; refer to the datasheet for theta_JA values. In enclosed systems, add ventilation or heatsinks if necessary.
Do not exceed the absolute maximum ratings for VDD (1.575V) and VDDQ. Ensure proper termination for DQ and DQS signals to prevent reflections. The device is EOL, so verify availability and consider alternative parts for new designs. Also, ensure the memory controller supports DDR3-1866 timing.
Compliance Information
RoHS compliant and halogen-free per datasheet. REACH and conflict minerals status not specified in provided data.
