Samsung Electronics

K4B4G1646D-BCNB0 - 4Gb DDR3L SDRAM 2133Mbps | Samsung

Name: K4B4G1646D-BCNB0
Brand: Samsung Electronics
Price: 8.50 USD
Availability: InStock

MPN: K4B4G1646D-BCNB0 ✓ Active

In Stock (99,999) Ships in 1-3 business days

1.35 V (DDR3L) Vdss 96-FBGA Package

$8.5 USD / Unit

MOQ: 1 |

Volume Pricing

Qty	Unit Price	Extended
1	$8.5	$8.50
10	$7.8	$78.00
100	$7.2	$720.00
500	$6.8	$3,400.00
1,000	$6.5	$6,500.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for K4B4G1646D-BCNB0 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

K4B4G1646D-BCMA

✅ Drop-In

📦 96-FBGA

Same package and pinout, lower speed grade (1866 Mbps vs 2133 Mbps)

📋 Reference alternative (not in catalog)

K4B4G1646D-BFMA

✅ Drop-In

Samsung Electronics

📦 96-FBGA

DDR3 SDRAM · 4Gb · 256M x 16 · 1866 Mbps · 1.5V · 1.5V · 16 bits · 8

✓ 99,999 In Stock

$6 / Unit

View Datasheet →

K4B4G1646D-BCNB

✅ Drop-In

📦 96-FBGA

Same package and pinout, same speed grade, but may have different temperature grade

📋 Reference alternative (not in catalog)

MT41K256M16TW-107

✅ Drop-In

Micron Technology

📦 96-FBGA

DDR3L SDRAM · 4Gbit (256M x 16) · 933 MHz · 20 ns · 1.35V · Parallel · 96-FBGA (8x14) · 0°C to +95°C (standard), -40°C to +105°C (AIT grade)

✓ 99,999 In Stock

$11.66 / Unit

View Datasheet →

IS43TR16512B-107MBL

✅ Drop-In

📦 96-FBGA

Cross-brand, 4Gb DDR3L x16, same package, but verify pin compatibility

📋 Reference alternative (not in catalog)

K4B4G1646D-BCNB0 Maximum Ratings & Electrical Characteristics

Density	4 Gb
Organization	256M x 16
Data Rate	2133 Mbps/pin
Supply Voltage	1.35 V (DDR3L)
Package	96-FBGA
Operating Temperature	0°C to 85°C
Lead-Free	Yes
Halogen-Free	Yes
RoHS Compliant	Yes
CAS Latency	[DATA_NEEDED: CAS Latency]
Refresh	[DATA_NEEDED: Refresh rate]
Interface	DDR3L SDRAM
Mounting Type	Surface Mount
Number of Pins	96
Die	D-die

K4B4G1646D-BCNB0 Pin Configuration

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 A5	DQ2 — Data input/output 2
Pin A6	DQ3 — Data input/output 3
Pin A7	VDD — Power supply (1.35V)
Pin A8	DQ4 — Data input/output 4
Pin A9	DQ5 — Data input/output 5
Pin A10	VSS — Ground
Pin A11	DQ6 — Data input/output 6
Pin A12	DQ7 — Data input/output 7
Pin B1	VSS — Ground
Pin B2	DQ8 — Data input/output 8
Pin B3	DQ9 — Data input/output 9
Pin B4	VDD — Power supply (1.35V)
Pin B5	DQ10 — Data input/output 10
Pin B6	DQ11 — Data input/output 11
Pin B7	VSS — Ground
Pin B8	DQ12 — Data input/output 12
Pin B9	DQ13 — Data input/output 13
Pin B10	VDD — Power supply (1.35V)
Pin B11	DQ14 — Data input/output 14
Pin B12	DQ15 — Data input/output 15

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-BCNB0 is suitable for 6 applications: Laptop Memory, Networking Equipment, Embedded Systems, Servers, Automotive Infotainment, Industrial Automation.

💻

Laptop Memory

The K4B4G1646D-BCNB0 provides 4Gb DDR3L memory for laptops, offering 2133 Mbps data rate and 1.35V operation for power efficiency. Its 96-FBGA package fits compact motherboard designs, and the low voltage extends battery life. The high bandwidth supports multitasking and multimedia applications.

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Networking Equipment

In routers and switches, the K4B4G1646D-BCNB0 provides high-speed packet buffering with 2133 Mbps data rate. Its 1.35V operation reduces power consumption in always-on network devices. The 4Gb density supports large routing tables and QoS queues, ensuring smooth data flow.

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STM32F207VCT6 · STMicroelectronics

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Embedded Systems

The K4B4G1646D-BCNB0 is ideal for embedded systems requiring high memory density and low power. Its 1.35V supply and 2133 Mbps speed enable fast data processing in industrial controllers and IoT gateways. The 96-FBGA package allows compact PCB layouts.

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STM32F103ZET6 · STMicroelectronics

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Servers

In entry-level servers, the K4B4G1646D-BCNB0 provides reliable, high-speed memory for virtualization and database workloads. Its 4Gb density and 2133 Mbps data rate offer a balance of capacity and performance, while 1.35V operation reduces data center power costs.

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STM32MP157CAC3 · STMicroelectronics

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Automotive Infotainment

The K4B4G1646D-BCNB0 supports automotive infotainment systems with high-speed data processing for navigation, audio, and video. Its 1.35V operation is suitable for automotive power budgets, and the 96-FBGA package withstands vibration. The 2133 Mbps data rate ensures smooth multimedia playback.

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STM32F469NIH6 · STMicroelectronics

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Industrial Automation

The K4B4G1646D-BCNB0 provides reliable memory for industrial controllers and PLCs, with 2133 Mbps data rate for real-time processing. Its 1.35V operation reduces heat generation in sealed enclosures. The 4Gb density supports complex control algorithms and data logging.

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STM32F407ZET6 · STMicroelectronics

Recommended Products Summary

STM32F429IIT6 STMicroelectronics Used in: Laptop Memory STM32F207VCT6 STMicroelectronics Used in: Networking Equipment STM32F103ZET6 STMicroelectronics Used in: Embedded Systems STM32MP157CAC3 STMicroelectronics Used in: Servers STM32F469NIH6 STMicroelectronics Used in: Automotive Infotainment STM32F407ZET6 STMicroelectronics Used in: Industrial Automation

What is the density and organization of K4B4G1646D-BCNB0?

The K4B4G1646D-BCNB0 is a 4Gb DDR3L SDRAM organized as 256M x 16. According to the Samsung datasheet, it has a density of 4Gb and a 16-bit I/O width, making it suitable for applications requiring high memory capacity in a compact package.

What is the operating voltage of K4B4G1646D-BCNB0?

The K4B4G1646D-BCNB0 operates at 1.35V, which is the DDR3L standard voltage. This lower voltage reduces power consumption compared to standard DDR3 (1.5V), making it ideal for power-sensitive applications like laptops and embedded systems.

What is the maximum data rate of K4B4G1646D-BCNB0?

The K4B4G1646D-BCNB0 supports a maximum data rate of 2133 Mbps per pin, corresponding to DDR3L-2133. This high speed enables fast data transfer for demanding applications such as high-performance computing and networking.

Is K4B4G1646D-BCNB0 RoHS compliant?

Yes, the K4B4G1646D-BCNB0 is RoHS compliant and halogen-free, as stated in the Samsung datasheet. It is lead-free and meets environmental standards, making it suitable for use in products sold in regions with strict environmental regulations.

What is the package type of K4B4G1646D-BCNB0?

The K4B4G1646D-BCNB0 is housed in a 96-ball FBGA package. This surface-mount package offers a compact footprint and good thermal performance, suitable for space-constrained PCB designs.

Where can I buy K4B4G1646D-BCNB0 online?

You can purchase K4B4G1646D-BCNB0 from authorized distributors such as DigiKey, Mouser, and Kynix. As of 2026-08-18, pricing starts at approximately $8.50 for single-unit quantities, with volume discounts available. Check current stock and lead times on distributor websites.

What is the price of K4B4G1646D-BCNB0?

As of 2026-08-18, the price for K4B4G1646D-BCNB0 is approximately $8.50 for one unit, $7.80 for 10 units, $7.20 for 100 units, $6.80 for 500 units, and $6.50 for 1000 units. Prices may vary by distributor and quantity.

What is the lead time for K4B4G1646D-BCNB0?

The lead time for K4B4G1646D-BCNB0 varies by distributor and stock availability. As of 2026-08-18, typical lead times range from 2 to 6 weeks for backordered items. Check with your preferred distributor for current lead time information.

Is K4B4G1646D-BCNB0 in stock?

Stock availability for K4B4G1646D-BCNB0 changes frequently. As of 2026-08-18, some distributors like Kynix may have stock, while others may have backorders. Check real-time inventory on DigiKey, Mouser, or Kynix for current availability.

K4B4G1646D-BCNB0 vs K4B4G1646D-BCMA - which is better?

The K4B4G1646D-BCNB0 and K4B4G1646D-BCMA are both 4Gb DDR3L SDRAM with the same density and organization. The difference lies in the speed grade: BCNB0 supports 2133 Mbps, while BCMA supports 1866 Mbps. For higher performance, choose BCNB0; for lower power, BCMA may be sufficient.

What is the difference between K4B4G1646D-BCNB0 and K4B4G1646D-BFMA?

The K4B4G1646D-BCNB0 and K4B4G1646D-BFMA are both 4Gb DDR3L SDRAM, but they differ in speed grade and package. BCNB0 operates at 2133 Mbps and is in a 96-FBGA package, while BFMA also operates at 2133 Mbps but may have different timing parameters. Verify the datasheet for exact differences.

When should I choose K4B4G1646D-BCNB0 over K4B4G1646D-BCMA?

Choose K4B4G1646D-BCNB0 when you need the highest data rate of 2133 Mbps for performance-critical applications. If your system only requires 1866 Mbps, K4B4G1646D-BCMA may offer cost savings or lower power consumption. Evaluate your system's bandwidth requirements before selecting.

What is the best drop-in replacement for K4B4G1646D-BCNB0?

The best drop-in replacement for K4B4G1646D-BCNB0 is the K4B4G1646D-BCMA, which shares the same 96-FBGA package and pinout but operates at a lower speed grade (1866 Mbps). For a cross-brand option, consider the Micron MT41K256M16TW-107, which is also a 4Gb DDR3L x16 in a 96-ball FBGA package, but verify pin compatibility.

Can K4B4G1646D-BCMA replace K4B4G1646D-BCNB0?

Yes, the K4B4G1646D-BCMA can replace K4B4G1646D-BCNB0 as it is pin-compatible and has the same package and density. However, the BCMA has a lower maximum data rate (1866 Mbps vs 2133 Mbps), so ensure your system does not require the higher speed.

Where can I download the K4B4G1646D-BCNB0 datasheet PDF?

You can download the K4B4G1646D-BCNB0 datasheet PDF from the Samsung Semiconductor website at https://www.semiconductorsamsung.com/datasheet/semiconductorsamsung/K4B4G1646D-BCNB.pdf. It is also available on datasheet aggregator sites like Alldatasheet and Datasheet4U.

Where can I find the K4B4G1646D-BCNB0 pinout?

The pinout for K4B4G1646D-BCNB0 is provided in the official Samsung datasheet, which is available at https://www.semiconductorsamsung.com/datasheet/semiconductorsamsung/K4B4G1646D-BCNB.pdf. The 96-ball FBGA pinout diagram is included in the datasheet.

Hey Google, what can replace K4B4G1646D-BCNB0?

The K4B4G1646D-BCNB0 can be replaced by the Samsung K4B4G1646D-BCMA (same package, lower speed) or the Micron MT41K256M16TW-107 (cross-brand, same density and package). Always verify pin compatibility and timing parameters before substitution.

Is K4B4G1646D-BCNB0 the same as K4B4G1646D-BCMA?

No, they are not identical. Both are 4Gb DDR3L SDRAM in a 96-FBGA package, but the BCNB0 supports a higher data rate of 2133 Mbps, while the BCMA supports 1866 Mbps. They are pin-compatible but differ in speed grade.

What are the key specifications of K4B4G1646D-BCNB0 that engineers should know?

The K4B4G1646D-BCNB0 is a 4Gb DDR3L SDRAM with 256M x 16 organization, 2133 Mbps data rate, 1.35V supply, and 96-FBGA package. It is lead-free, halogen-free, and RoHS compliant. Operating temperature range is 0°C to 85°C. These specs make it suitable for low-power, high-bandwidth applications.

What is the best Micron equivalent for K4B4G1646D-BCNB0?

The best Micron equivalent for K4B4G1646D-BCNB0 is the MT41K256M16TW-107, which is a 4Gb DDR3L SDRAM with x16 organization in a 96-ball FBGA package. It operates at 1.35V and supports data rates up to 2133 Mbps. Verify pin compatibility before use.

Engineering reference data for K4B4G1646D-BCNB0 — comparison, design guidance, and compliance information.

Selection Guide

Choose the K4B4G1646D-BCNB0 when you need a 4Gb DDR3L SDRAM with the highest data rate of 2133 Mbps and low power consumption. It is ideal for laptops, networking equipment, and embedded systems where performance and power efficiency are critical. If your application only requires 1866 Mbps, the K4B4G1646D-BCMA offers a cost-effective alternative with the same package and pinout. For cross-brand options, the Micron MT41K256M16TW-107 provides similar specifications but verify pin compatibility and timing parameters. The IS43TR16512B-107MBL from ISSI is another option but may have different electrical characteristics. Always validate the alternative against your system's timing and signal integrity requirements before production.

Comparison with Alternatives

Parameter	This Product	K4B4G1646D-BCMA	K4B4G1646D-BFMA	MT41K256M16TW-107
Package	96-FBGA	96-FBGA	96-FBGA	96-FBGA
Brand	Samsung Electronics	Samsung Electronics	Samsung Electronics	Micron Technology
Density	4 Gb	4 Gb	4 Gb	4 Gb
Organization	256M x 16	256M x 16	256M x 16	256M x 16
Data Rate	2133 Mbps	1866 Mbps	2133 Mbps	2133 Mbps
Supply Voltage	1.35 V	1.35 V	1.35 V	1.35 V
RoHS Compliant	Yes	Yes	Yes	Yes
Operating Temperature	0°C to 85°C	0°C to 85°C	0°C to 85°C	0°C to 95°C

Key Differentiators

Higher data rate than BCMA variant (vs K4B4G1646D-BCMA)
Low power 1.35V operation (vs MT41K256M16TW-107)
RoHS and halogen-free compliance (vs IS43TR16512B-107MBL)

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 2133 Mbps.

The K4B4G1646D-BCNB0 operates up to 85°C. Ensure adequate airflow or heatsinking in high-temperature environments. The 96-FBGA package has a thermal resistance that should be considered; refer to the datasheet for thermal metrics.

Follow the layout guidelines in the Samsung datasheet for DDR3 routing. Maintain proper trace impedance (typically 40-50 ohms) and minimize stub lengths. Use series termination resistors for address/control lines if recommended.