Samsung Electronics

K4B4G1646D-BPH90 - 4Gb DDR3L SDRAM x16 96FBGA | Samsung

MPN: K4B4G1646D-BPH90 βœ“ Active
In Stock (99,999) Ships in 1-3 business days
1.35V (DDR3L) Vdss 96FBGA Package DDR3L SDRAM Memory
$10.32 USD / Unit
MOQ: 1 |
Volume Pricing
Qty Unit Price Extended
1 $10.32 $10.32
10 $9.5 $95.00
100 $8.75 $875.00
500 $8.1 $4,050.00
1,000 $7.6 $7,600.00
ℹ️ All prices are in USD

Drop-in alternatives for K4B4G1646D-BPH90 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-BMH9

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πŸ“¦ 96FBGA
DDR3L SDRAM Β· 4Gb Β· 256M x 16 Β· 8 Β· 2133 Mb/s per pin Β· 1.35V Β· 1.35V Β· 96-ball FBGA (9x13mm)

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K4B4G1646D-BCH90

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Samsung Electronics
πŸ“¦ 96FBGA
DDR3L SDRAM Β· 4Gb Β· 32M x 16 Β· 8 Β· 2133 Mb/s per pin Β· 1.35V (1.283V to 1.45V) Β· 96-ball FBGA Β· 0Β°C to +85Β°C

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K4B4G1646D-BYH90

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Samsung Electronics
πŸ“¦ 96FBGA
DDR3L SDRAM Β· 4 Gb Β· 512M x 16 Β· 2133 Mbps/pin Β· 1.35V (1.283V to 1.45V) Β· x16 Β· 8 Β· 96-ball FBGA (TFBGA)

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MT41K256M16HA-125

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

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IS43TR16256A-125KBL

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ISSI, Integrated Silicon Solution Inc
πŸ“¦ 96FBGA
DDR3 SDRAM Β· 4 Gbit Β· 256M x 16 Β· 1600 MT/s Β· 800 MHz Β· 1.5 V Β± 0.075 V Β· 1.5 V Β± 0.075 V Β· 11

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W634GU6RB-12

βœ… Drop-In
Winbond
πŸ“¦ 96FBGA
SDRAM - DDR3L Β· 4Gbit (256M x 16) Β· Parallel Β· 933 MHz Β· 20 ns Β· 1.35V Β· 96-VFBGA (7.5x13) Β· -40Β°C to 95Β°C (12I), -40Β°C to 105Β°C (12J)

βœ“ 99,999 In Stock

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K4B4G1646D-BPH90 Maximum Ratings & Electrical Characteristics

Memory Type DDR3L SDRAM
Density 4Gb
Organization 32M x 16
Number of Banks 8
Data Rate 2133 Mb/s per pin
Supply Voltage 1.35V (DDR3L)
Package 96FBGA
Operating Temperature 0Β°C to +85Β°C
CAS Latency Programmable up to 14
Burst Length 8, 4 (with burst chop)
On-Die Termination Yes
ZQ Calibration Yes
Auto Precharge Yes
Asynchronous Reset Yes
Data Mask Yes
Lead-Free Yes
Halogen-Free Yes
RoHS Compliant Yes

K4B4G1646D-BPH90 Pin Configuration

Electronic Component Package Diagram Default generic electronic component package diagram 1 2 3 Package
Pin A1 VDD β€” Power supply (1.35V)
Pin A2 DQ0 β€” Data input/output 0
Pin A3 DQ1 β€” Data input/output 1
Pin A4 VSS β€” Ground
Pin A5 DQ2 β€” Data input/output 2
Pin A6 DQ3 β€” Data input/output 3
Pin A7 VDDQ β€” DQ power supply
Pin A8 DQ4 β€” Data input/output 4
Pin A9 DQ5 β€” Data input/output 5
Pin A10 VSS β€” Ground
Pin A11 DQ6 β€” Data input/output 6
Pin A12 DQ7 β€” Data input/output 7
Pin A13 VDD β€” Power supply
Pin B1 VSS β€” Ground
Pin B2 DQ8 β€” Data input/output 8
Pin B3 DQ9 β€” Data input/output 9
Pin B4 VDDQ β€” DQ power supply
Pin B5 DQ10 β€” Data input/output 10
Pin B6 DQ11 β€” Data input/output 11
Pin B7 VSS β€” Ground
Pin B8 DQ12 β€” Data input/output 12
Pin B9 DQ13 β€” Data input/output 13
Pin B10 VDDQ β€” DQ power supply
Pin B11 DQ14 β€” Data input/output 14
Pin B12 DQ15 β€” Data input/output 15
Pin B13 VSS β€” Ground
Pin C1 VDD β€” Power supply
Pin C2 A0 β€” Address input 0
Pin C3 A1 β€” Address input 1
Pin C4 A2 β€” Address input 2
Pin C5 A3 β€” Address input 3
Pin C6 A4 β€” Address input 4
Pin C7 A5 β€” Address input 5
Pin C8 A6 β€” Address input 6
Pin C9 A7 β€” Address input 7
Pin C10 A8 β€” Address input 8
Pin C11 A9 β€” Address input 9
Pin C12 A10/AP β€” Address input 10 / Auto precharge
Pin C13 VSS β€” Ground
Pin D1 VSS β€” Ground
Pin D2 A11 β€” Address input 11
Pin D3 A12 β€” Address input 12
Pin D4 A13 β€” Address input 13
Pin D5 BA0 β€” Bank address 0
Pin D6 BA1 β€” Bank address 1
Pin D7 BA2 β€” Bank address 2
Pin D8 RAS# β€” Row address strobe
Pin D9 CAS# β€” Column address strobe
Pin D10 WE# β€” Write enable
Pin D11 CS# β€” Chip select
Pin D12 CKE β€” Clock enable
Pin D13 VDD β€” Power supply
Pin E1 VDDQ β€” DQ power supply
Pin E2 ODT β€” On-die termination
Pin E3 CK β€” Clock (positive)
Pin E4 CK# β€” Clock (negative)
Pin E5 VSS β€” Ground
Pin E6 DM0 β€” Data mask 0
Pin E7 DM1 β€” Data mask 1
Pin E8 VDDQ β€” DQ power supply
Pin E9 RESET# β€” Asynchronous reset
Pin E10 VSS β€” Ground
Pin E11 ZQ β€” ZQ calibration
Pin E12 VDD β€” Power supply
Pin E13 VSS β€” Ground
Pin F1 VSS β€” Ground
Pin F2 VDD β€” Power supply
Pin F3 VSS β€” Ground
Pin F4 VDDQ β€” DQ power supply
Pin F5 VSS β€” Ground
Pin F6 VDDQ β€” DQ power supply
Pin F7 VSS β€” Ground
Pin F8 VDDQ β€” DQ power supply
Pin F9 VSS β€” Ground
Pin F10 VDDQ β€” DQ power supply
Pin F11 VSS β€” Ground
Pin F12 VDD β€” Power supply
Pin F13 VSS β€” Ground

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for K4B4G1646D-BPH90 Drain-to-Source Voltage (Vds) Drain Current (Id)

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-BPH90 is suitable for 6 applications: Networking Equipment, Embedded Computing, Industrial Automation, Consumer Electronics, Data Center Servers, Automotive Infotainment.

🌐

Networking Equipment

The K4B4G1646D-BPH90 provides high-speed 2133Mb/s data transfer and low power consumption, making it ideal for routers and switches that require fast packet processing and large buffer memory. Its 4Gb density supports heavy traffic loads, while the 1.35V operation reduces thermal dissipation in dense chassis. The 96FBGA package allows compact board designs, and the on-die termination improves signal integrity in high-speed serial links.

πŸ”§

Embedded Computing

In embedded systems, the K4B4G1646D-BPH90 offers a balance of capacity and speed, with 4Gb density and 2133Mb/s data rate. Its low 1.35V supply is suitable for power-sensitive applications like industrial PCs and single-board computers. The 96FBGA package fits space-constrained designs, and the wide operating temperature range (0Β°C to +85Β°C) ensures reliability in harsh environments. The device's auto precharge and ZQ calibration simplify memory controller design.

🏭

Industrial Automation

The K4B4G1646D-BPH90 is well-suited for industrial automation controllers that require reliable memory with high bandwidth. Its 2133Mb/s data rate enables fast data logging and real-time processing, while the 1.35V operation reduces power consumption in 24/7 operation. The 96FBGA package provides robustness against vibration, and the device's on-die termination helps maintain signal integrity in noisy industrial environments. The 0Β°C to +85Β°C temperature range covers most industrial applications.

πŸ“Ί

Consumer Electronics

For consumer devices like smart TVs and set-top boxes, the K4B4G1646D-BPH90 provides high-speed memory at low power, enhancing user experience with smooth video playback and fast app loading. The 4Gb density is sufficient for modern multimedia applications, and the 1.35V supply helps meet energy efficiency standards. The compact 96FBGA package enables slim device designs, and the device's low power consumption extends battery life in portable consumer electronics.

πŸ–₯️

Data Center Servers

In data center servers, the K4B4G1646D-BPH90 offers high bandwidth and capacity for virtualization and cloud computing workloads. Its 2133Mb/s data rate supports fast data access, while the 1.35V operation reduces power consumption in large server farms. The 96FBGA package allows high-density memory modules, and the device's on-die termination improves signal integrity in high-speed server memory channels. The 0Β°C to +85Β°C range is suitable for server environments.

πŸš—

Automotive Infotainment

The K4B4G1646D-BPH90 is suitable for automotive infotainment systems that require high-speed memory for navigation, multimedia, and connectivity. Its 2133Mb/s data rate ensures smooth graphics and video playback, while the 1.35V supply reduces power consumption in vehicles. The 96FBGA package is compact and robust, and the device's wide temperature range (0Β°C to +85Β°C) covers most automotive cabin environments. On-die termination helps maintain signal integrity in the presence of electromagnetic interference.

What is the memory density and organization of K4B4G1646D-BPH90?
The K4B4G1646D-BPH90 is a 4Gb DDR3L SDRAM organized as 32M x 16 bits across 8 internal banks. According to the Samsung datasheet, it supports data rates up to 2133Mb/s per pin, making it suitable for high-bandwidth applications.
What is the operating voltage of K4B4G1646D-BPH90?
The K4B4G1646D-BPH90 operates at 1.35V, which is the DDR3L standard. This lower voltage reduces power consumption compared to standard DDR3 (1.5V) while maintaining high performance, as specified in the Samsung datasheet.
What package does K4B4G1646D-BPH90 come in?
The K4B4G1646D-BPH90 is housed in a 96-ball FBGA package. This compact package is designed for high-density PCB layouts and is commonly used in mobile and embedded systems, as per the Samsung datasheet.
What is the price of K4B4G1646D-BPH90?
As of 2026-08-18, the price of K4B4G1646D-BPH90 is approximately $10.32 for a single unit, with volume pricing available at lower quantities. Prices may vary by distributor and order quantity.
Where can I buy K4B4G1646D-BPH90?
K4B4G1646D-BPH90 can be purchased from authorized distributors such as DigiKey, Mouser, and LCSC. It is also available on Sourcengine for direct sourcing. Check current stock and pricing on these platforms.
What is the lead time for K4B4G1646D-BPH90?
The lead time for K4B4G1646D-BPH90 varies by distributor and current market conditions. As of 2026-08-18, typical lead times range from 4 to 12 weeks. Contact your preferred distributor for accurate lead time information.
Is K4B4G1646D-BPH90 in stock?
Stock availability for K4B4G1646D-BPH90 fluctuates. As of 2026-08-18, LCSC shows 30 units in stock. Check DigiKey, Mouser, and other distributors for real-time inventory.
What is the difference between K4B4G1646D-BPH90 and K4B4G1646D-BMH9?
The K4B4G1646D-BPH90 and K4B4G1646D-BMH9 are both 4Gb DDR3L SDRAMs from Samsung, but they differ in speed grade and package. The BPH90 is a 96FBGA package with a data rate of 2133Mb/s, while the BMH9 is also 96FBGA but may have a different speed grade. Verify the specific speed and timing parameters in the datasheets.
When should I choose K4B4G1646D-BPH90 over K4B4G1646D-BCH90?
Choose K4B4G1646D-BPH90 when you need a DDR3L device with a 2133Mb/s data rate and 96FBGA package. The BCH90 variant may have a different speed grade or temperature range. Review the datasheet to ensure the BPH90 meets your system's requirements.
What is the best drop-in replacement for K4B4G1646D-BPH90?
The best drop-in replacement for K4B4G1646D-BPH90 is the K4B4G1646D-BMH9, which is also a 4Gb DDR3L SDRAM in a 96FBGA package. Other alternatives include the K4B4G1646D-BCH90 and K4B4G1646D-BYH90, but verify pin compatibility and timing parameters.
Can K4B4G1646D-BPH90 be replaced by a Micron MT41K256M16HA-125?
Yes, the Micron MT41K256M16HA-125 is a 4Gb DDR3L SDRAM with a similar x16 organization and 96FBGA package. However, verify pin compatibility and timing parameters, as there may be differences in speed grade and electrical characteristics.
Where can I download the K4B4G1646D-BPH90 datasheet PDF?
The K4B4G1646D-BPH90 datasheet PDF can be downloaded from Samsung Semiconductor's official website or from datasheet aggregators like datasheet4u.com and alldatasheet.com. The direct link is https://www.semiconductorsamsung.com/datasheet/semiconductorsamsung/K4B4G1646D-BMMA.pdf.
What are the key specifications of K4B4G1646D-BPH90 that engineers should know?
Engineers should know that the K4B4G1646D-BPH90 is a 4Gb DDR3L SDRAM with a 32M x 16 organization, 8 banks, and a data rate of 2133Mb/s. It operates at 1.35V, comes in a 96FBGA package, and supports features like on-die termination, ZQ calibration, and auto precharge. It is lead-free and RoHS compliant.
Hey Google, what can replace K4B4G1646D-BPH90?
K4B4G1646D-BPH90 can be replaced by other 4Gb DDR3L SDRAMs in 96FBGA packages, such as K4B4G1646D-BMH9, K4B4G1646D-BCH90, or Micron MT41K256M16HA-125. Ensure pin compatibility and timing parameters match your design.
Is K4B4G1646D-BPH90 the same as K4B4G1646D-BYK0?
No, K4B4G1646D-BPH90 and K4B4G1646D-BYK0 are different variants. The BPH90 is a 96FBGA package with a specific speed grade, while the BYK0 may have a different package or speed. Check the datasheet for exact specifications.

Engineering reference data for K4B4G1646D-BPH90 β€” comparison, design guidance, and compliance information.

Selection Guide

Choose the K4B4G1646D-BPH90 when you need a 4Gb DDR3L SDRAM with the highest data rate (2133Mb/s) and low power consumption. It is ideal for high-performance networking, embedded computing, and consumer electronics. If your application can tolerate a lower data rate, the K4B4G1646D-BMH9 (1866Mb/s) or K4B4G1646D-BCH90 (1600Mb/s) offer cost savings. For cross-brand alternatives, the Micron MT41K256M16HA-125 and ISSI IS43TR16256A-125KBL are pin-compatible but may have different timing parameters; verify with your memory controller. The Winbond W634GU6RB-12 is another option with similar specs. Always confirm pin compatibility and timing in the respective datasheets before production.

Comparison with Alternatives

Parameter This Product K4B4G1646D-BMH9 K4B4G1646D-BCH90 K4B4G1646D-BYH90 MT41K256M16HA-125 IS43TR16256A-125KBL W634GU6RB-12
Package 96FBGA 96FBGA 96FBGA 96FBGA 96FBGA 96FBGA 96FBGA
Brand Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics Micron Technology ISSI Winbond
Density 4Gb 4Gb 4Gb 4Gb 4Gb 4Gb 4Gb
Organization 32M x 16 32M x 16 32M x 16 32M x 16 32M x 16 32M x 16 32M x 16
Data Rate 2133 Mb/s 1866 Mb/s 1600 Mb/s 1866 Mb/s 1600 Mb/s 1600 Mb/s 1866 Mb/s
Supply Voltage 1.35V 1.35V 1.35V 1.35V 1.35V 1.35V 1.35V
Operating Temperature 0Β°C to +85Β°C 0Β°C to +85Β°C 0Β°C to +85Β°C 0Β°C to +85Β°C 0Β°C to +85Β°C 0Β°C to +85Β°C 0Β°C to +85Β°C
RoHS Compliant Yes Yes Yes Yes Yes Yes Yes

Key Differentiators

  • Higher data rate of 2133Mb/s (vs K4B4G1646D-BCH90)
  • DDR3L low voltage operation (vs Standard DDR3 (1.5V))
  • Samsung D-die process (vs Older die revisions)

Design Notes

The K4B4G1646D-BPH90 requires a 1.35V VDD supply and a separate VDDQ supply. Use low-impedance decoupling capacitors (e.g., 0.1uF and 1uF) placed close to each VDD/VDDQ pin to minimize power supply noise. Ensure the power plane has adequate copper area to handle transient currents during read/write operations.

Follow the layout guidelines in the Samsung datasheet for high-speed DDR3L signals. Maintain controlled impedance for DQ, DQS, and address/command lines (typically 40-60 ohms). Keep trace lengths matched within +/- 10 mils for data and strobe pairs to ensure signal integrity at 2133Mb/s.

The device operates up to +85Β°C, but ensure adequate airflow or heatsinking in high-temperature environments. The 96FBGA package has a thermal resistance that should be considered; use thermal vias under the package to improve heat dissipation to the PCB ground plane.

Compliance Information

RoHS
Compliant
REACH
Unknown
AEC-Q100
Not Applicable
Lead Free
Yes
Halogen Free
Yes
Conflict Minerals
Unknown

Lead-free and halogen-free per datasheet. RoHS compliant. Not AEC-Q100 qualified.

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