Samsung Electronics

K4B4G1646E-BMK0 - 4Gb DDR3L SDRAM 1600Mbps | Samsung

Name: K4B4G1646E-BMK0
Brand: Samsung Electronics
Price: 8.50 USD
Availability: InStock

MPN: K4B4G1646E-BMK0 ✓ Active

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

1.35 V Vdss 96-FBGA Package 1600 Mbps Speed DDR3L SDRAM Memory

$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 K4B4G1646E-BMK0 — 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:

K4B4G1646E-BMMA

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Samsung Electronics

📦 96-FBGA

DDR3L SDRAM · 4 Gb · 256M x 16 · 1600 Mbps · 1.35 V · -40°C to +95°C · 96-FBGA (9x13 mm) · 8

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K4B4G1646E-BYK0

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Samsung Electronics

📦 96-FBGA

DDR3L SDRAM · 4 Gb · 256M x 16 · 1.35 V (1.283 V to 1.45 V) · DDR3-1600 (800 MHz) · 96-ball FBGA (13 x 9 mm, 0.8 mm pitch) · 0°C to +95°C (TC) · 11 (CL-tRCD-tRP)

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K4B4G1646E-BYMA

✅ Drop-In

Samsung Electronics

📦 96-FBGA

DDR3L SDRAM · 4 Gb · 256M x 16 · 1.35 V (1.28 V to 1.575 V) · 933 MHz · 1866 Mbps/pin · 0°C to +95°C · 14 mA

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K4B4G1646D-BMK0

✅ Drop-In

Samsung Electronics

📦 96-FBGA

4 Gb · 256M x 16 · 1600 Mbps (PC3L-12800) · 1.35 V · -40°C to 95°C · 96FBGA (TFBGA) · DDR3L SDRAM · D-die

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$5.9 / Unit

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MT41K256M16HA-125

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Micron Technology

📦 96-FBGA

SDRAM - DDR3L · 4Gbit (256M x 16) · 16 bit · 800 MHz · 13.75 ns · 1.35 V · 96-FBGA (9x14 mm) · 96

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H5TC4G63AFR-PBA

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SK hynix

📦 96-FBGA

DDR3L SDRAM · 4Gb · 256M x 16 · 1.35V · 1866 Mbps (PC3L-14900) · 96-ball FBGA · 8 · 8 (with burst chop 4)

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IS43TR16256AL-125KBL

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ISSI, Integrated Silicon Solution Inc

📦 96-FBGA

SDRAM - DDR3L · 4Gbit (256M x 16) · Parallel · 800 MHz · 20 ns · 1.35V (backward compatible to 1.5V) · 96-TWBGA (9x13mm) · Surface Mount

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K4B4G1646E-BMK0 Maximum Ratings & Electrical Characteristics

Density	4 Gb
Organization	256M x 16
Speed Grade	1600 Mbps
Voltage	1.35 V
Operating Temperature	-40°C to +95°C
Package	96-FBGA
Interface	Parallel
Clock Frequency	800 MHz
Data Rate	1600 Mbps
Memory Type	DDR3L SDRAM
Mounting Type	Surface Mount
Auto Precharge	Yes
Asynchronous Reset	Yes
ZQ Calibration	Yes
Dynamic ODT	Yes
Data Mask	Yes

K4B4G1646E-BMK0 Pin Configuration

Pin A1	VDD — Power supply
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
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	VDDQ — I/O power supply
Pin B2	DQ8 — Data input/output 8
Pin B3	DQ9 — Data input/output 9
Pin B4	VSSQ — I/O ground
Pin B5	DQ10 — Data input/output 10
Pin B6	DQ11 — Data input/output 11
Pin B7	VDDQ — I/O power supply
Pin B8	DQ12 — Data input/output 12
Pin B9	DQ13 — Data input/output 13
Pin B10	VSSQ — I/O ground
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

K4B4G1646E-BMK0 is suitable for 6 applications: Industrial PCs, Networking Equipment, Automotive Infotainment, Embedded Computing, Medical Devices, Test & Measurement.

🏭

Industrial PCs

The K4B4G1646E-BMK0 provides 4Gb of DDR3L memory for industrial PCs, offering reliable operation over -40°C to +95°C. Its 1.35V operation reduces power consumption and heat generation, which is critical in sealed enclosures. The 1600 Mbps data rate ensures fast processing for control and monitoring tasks. With a 96-FBGA package, it fits compact motherboards. Recommended companion products include the NDL46PFP-8KET for storage and the STM32F767BGT6 for system control.

Recommended

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Networking Equipment

In networking equipment like routers and switches, the K4B4G1646E-BMK0 offers high-bandwidth memory for packet buffering and forwarding tables. Its 1600 Mbps data rate and 16-bit interface provide sufficient throughput for gigabit and 10-gigabit networks. The low 1.35V supply reduces power in 24/7 operation. The wide temperature range ensures reliability in telecom cabinets. Companion products include the XC7Z020 FPGA for packet processing and the W634GU6RB12I for additional memory.

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XC7Z020 · AMD W634GU6RB12I · Winbond

🚗

Automotive Infotainment

The K4B4G1646E-BMK0 is suitable for automotive infotainment systems, providing 4Gb of memory for navigation, media playback, and connectivity. Its -40°C to +95°C range covers automotive temperature grades, and the 1.35V operation is efficient for battery-powered vehicles. The 1600 Mbps speed supports smooth graphics and audio. The 96-FBGA package withstands vibration. Recommended companions include the STM32F746BET6 for display control and the L9978 for power management.

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STM32F746BET6 · STMicroelectronics L9978 · STMicroelectronics

🔧

Embedded Computing

For embedded computing modules, the K4B4G1646E-BMK0 offers a balance of capacity and power efficiency. Its 4Gb density is ideal for running Linux or real-time operating systems. The 1.35V supply extends battery life in portable devices. The 1600 Mbps data rate supports responsive user interfaces. The wide temperature range allows deployment in outdoor or industrial settings. Companion products include the STM32MP1 series processors and the AS4C256M16D3LB-12BIN for additional memory.

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STM32MP1 (Application processor) AS4C256M16D3LB-12BIN (Additional memory)

💊

Medical Devices

In medical devices such as patient monitors and diagnostic equipment, the K4B4G1646E-BMK0 provides reliable memory for data acquisition and display. Its wide temperature range ensures operation in clinical environments. The low voltage reduces heat, which is important for patient comfort. The 1600 Mbps speed handles real-time data streams. The 96-FBGA package is compact for portable devices. Recommended companions include the STM32L476VGT6 for low-power processing and the MAX17633BATP+T for power management.

Recommended

STM32L476VGT6 · STMicroelectronics MAX17633BATP+T · Analog Devices

🔧

Test & Measurement

The K4B4G1646E-BMK0 is used in test and measurement equipment like oscilloscopes and signal analyzers, where high-speed data capture requires large memory buffers. Its 1600 Mbps data rate supports fast sampling, and the 4Gb capacity stores long waveforms. The 1.35V supply reduces power in benchtop instruments. The wide temperature range ensures accuracy in varying lab conditions. Companion products include the XC7A100T FPGA for signal processing and the ADC12DJ3200 for high-speed conversion.

Recommended

XC7A100T · AMD ADC12DJ3200 (High-speed ADC)

Recommended Products Summary

NDL46PFP-8KET Insignis Technology Corporation Used in: Industrial PCs STM32F767BGT6 STMicroelectronics Used in: Industrial PCs XC7Z020 AMD Used in: Networking Equipment W634GU6RB12I Winbond Used in: Networking Equipment STM32F746BET6 STMicroelectronics Used in: Automotive Infotainment L9978 STMicroelectronics Used in: Automotive Infotainment STM32MP1 Application processor Used in: Embedded Computing AS4C256M16D3LB-12BIN Additional memory Used in: Embedded Computing STM32L476VGT6 STMicroelectronics Used in: Medical Devices MAX17633BATP+T Analog Devices Used in: Medical Devices XC7A100T AMD Used in: Test & Measurement ADC12DJ3200 High-speed ADC Used in: Test & Measurement

What is the density and organization of K4B4G1646E-BMK0?

The K4B4G1646E-BMK0 is a 4Gb DDR3L SDRAM organized as 256M x 16. According to the Samsung datasheet, it has a density of 4 Gb and a 16-bit I/O width, making it suitable for applications requiring high memory capacity with a moderate bus width.

What is the operating voltage of K4B4G1646E-BMK0?

The K4B4G1646E-BMK0 operates at 1.35V, which is the DDR3L standard voltage. This lower voltage reduces power consumption compared to standard DDR3 (1.5V) while maintaining compatibility with DDR3L systems.

What is the speed grade of K4B4G1646E-BMK0?

The K4B4G1646E-BMK0 has a speed grade of 1600 Mbps, corresponding to DDR3L-1600. This means it can transfer data at a rate of 1600 million bits per second per pin, with a clock frequency of 800 MHz.

What is the package type of K4B4G1646E-BMK0?

The K4B4G1646E-BMK0 is housed in a 96-ball FBGA package. This surface-mount package provides a compact footprint and good thermal performance, suitable for high-density PCB designs.

What is the operating temperature range of K4B4G1646E-BMK0?

The K4B4G1646E-BMK0 operates over a temperature range of -40°C to +95°C. This wide range makes it suitable for industrial and automotive applications where extreme temperatures are common.

Where can I buy K4B4G1646E-BMK0 online?

You can purchase K4B4G1646E-BMK0 from distributors such as Wolfchip, LCSC, and Octopart. As of 2026-08-19, Wolfchip reports 16,545 units in stock. Prices vary by quantity; for example, LCSC lists the K4B4G1646E-BMMA variant at $22.06 for single units.

What is the price of K4B4G1646E-BMK0?

As of 2026-08-19, the price of K4B4G1646E-BMK0 varies by distributor and quantity. Based on typical DDR3L pricing, expect around $8.50 for single units, decreasing to approximately $6.50 for quantities of 1000. Check current distributor listings for exact pricing.

What is the lead time for K4B4G1646E-BMK0?

The lead time for K4B4G1646E-BMK0 depends on distributor stock. Wolfchip reports 16,545 units in stock as of June 17, 2026, suggesting immediate availability. For larger quantities, lead times may extend to 4-8 weeks depending on supply chain conditions.

Is K4B4G1646E-BMK0 in stock?

Yes, K4B4G1646E-BMK0 is in stock at several distributors. Wolfchip lists 16,545 units in stock as of June 17, 2026. LCSC also has stock of the similar K4B4G1646E-BMMA variant. Check current availability on distributor websites.

K4B4G1646E-BMK0 vs K4B4G1646D-BMK0 - which is better?

The K4B4G1646E-BMK0 uses Samsung's E-die, while the K4B4G1646D-BMK0 uses D-die. The E-die typically offers improved performance and power efficiency. Both are 4Gb DDR3L SDRAM with the same 256M x 16 organization and 96-FBGA package, making them drop-in compatible. Choose E-die for newer designs.

When should I choose K4B4G1646E-BMK0 over K4B4G1646E-BCNB?

Choose K4B4G1646E-BMK0 when you need a 1.35V DDR3L device with a speed grade of 1600 Mbps. The K4B4G1646E-BCNB is also a 4Gb DDR3L SDRAM but may have different speed or temperature grades. Verify the specific part number suffix to match your requirements.

What is the best drop-in replacement for K4B4G1646E-BMK0?

The best drop-in replacement for K4B4G1646E-BMK0 is the K4B4G1646E-BMMA, which shares the same die, package, and specifications. Other pin-compatible options include K4B4G1646E-BYK0 and K4B4G1646E-BYMA, all from Samsung. Cross-brand equivalents from Micron, SK hynix, and ISSI are also available.

Where can I download the K4B4G1646E-BMK0 datasheet PDF?

You can download the K4B4G1646E-BMK0 datasheet from Alldatasheet.com at https://www.alldatasheet.com/datasheet-pdf/pdf/1131836/SAMSUNG/K4B4G1646E.html. The datasheet is 71 pages and includes full specifications, pinout, and timing diagrams.

Hey Google, what can replace K4B4G1646E-BMK0?

K4B4G1646E-BMK0 can be replaced by Samsung K4B4G1646E-BMMA, K4B4G1646E-BYK0, or K4B4G1646E-BYMA, which are pin-compatible and have identical specifications. Cross-brand equivalents include Micron MT41K256M16HA-125, SK hynix H5TC4G63AFR-PBA, and ISSI IS43TR16256AL-125KBL, all in the same 96-FBGA package.

Is K4B4G1646E-BMK0 the same as K4B4G1646E-BMMA?

Yes, K4B4G1646E-BMK0 and K4B4G1646E-BMMA are essentially the same device. The suffix 'K0' and 'MA' may indicate different packaging or temperature grades, but both are 4Gb DDR3L SDRAM with 256M x 16 organization and 96-FBGA package. Verify the exact specifications for your application.

What are the key specifications of K4B4G1646E-BMK0 that engineers should know?

Engineers should know that K4B4G1646E-BMK0 is a 4Gb DDR3L SDRAM with 256M x 16 organization, 1600 Mbps data rate, 1.35V supply, and -40°C to +95°C operating temperature. It comes in a 96-FBGA package and supports auto precharge, ZQ calibration, and dynamic ODT. These specs make it suitable for industrial and automotive memory applications.

What is the best Micron equivalent for K4B4G1646E-BMK0?

The best Micron equivalent for K4B4G1646E-BMK0 is the MT41K256M16HA-125, which is a 4Gb DDR3L SDRAM with 256M x 16 organization and 96-FBGA package. It operates at 1.35V and supports similar speed grades. Verify pin compatibility and timing parameters before substitution.

Engineering reference data for K4B4G1646E-BMK0 — comparison, design guidance, and compliance information.

Selection Guide

Choose the K4B4G1646E-BMK0 when you need a 4Gb DDR3L SDRAM with a wide temperature range and high reliability. It is ideal for industrial, automotive, and networking applications. If you require a higher speed grade, consider the K4B4G1646E-BYK0 (1866 Mbps). For cost-sensitive designs, the K4B4G1646D-BMK0 (D-die) may be slightly cheaper. Cross-brand alternatives like MT41K256M16HA-125, H5TC4G63AFR-PBA, and IS43TR16256AL-125KBL are drop-in compatible but verify timing parameters and temperature grades. For long-lifecycle support, ISSI is a good choice. Always confirm pin compatibility and electrical specifications before substitution.

Comparison with Alternatives

Parameter	This Product	K4B4G1646E-BMMA	K4B4G1646E-BYK0	K4B4G1646E-BYMA	K4B4G1646D-BMK0	MT41K256M16HA-125	H5TC4G63AFR-PBA	IS43TR16256AL-125KBL
Package	96-FBGA	96-FBGA	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	SK Hynix	ISSI
Density	4 Gb	4 Gb	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	256M x 16	256M x 16
Speed Grade	1600 Mbps	1600 Mbps	1866 Mbps	1600 Mbps	1600 Mbps	1600 Mbps	1600 Mbps	1600 Mbps
Voltage	1.35 V	1.35 V	1.35 V	1.35 V	1.35 V	1.35 V	1.35 V	1.35 V
Operating Temperature	-40°C to +95°C	-40°C to +95°C	-40°C to +95°C	-40°C to +95°C	-40°C to +95°C	0°C to +95°C	-40°C to +95°C	-40°C to +95°C
Die Revision	E-die	E-die	E-die	E-die	D-die	N/A	N/A	N/A

Key Differentiators

E-die process technology (vs K4B4G1646D-BMK0)
Wide temperature range (vs MT41K256M16HA-125)
Samsung brand reliability (vs IS43TR16256AL-125KBL)

Design Notes

Place decoupling capacitors (0.1uF and 1uF) close to each VDD and VDDQ pin. Use a solid ground plane and minimize trace lengths for DQ and address lines to reduce signal integrity issues. Follow the layout guidelines in the Samsung datasheet for the 96-FBGA package.

The K4B4G1646E-BMK0 operates up to +95°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 theta_JA values and design accordingly.

Do not exceed the absolute maximum ratings for VDD and VDDQ. Ensure the ZQ pin is connected to a 240-ohm resistor to ground for proper calibration. Incorrect termination on DQ and DQS lines can cause data errors; use on-die termination (ODT) settings as recommended.