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Samsung Electronics

K4B4G1646D-BYH90 - 4Gb DDR3L SDRAM x16 96FBGA | Samsung

Référence : K4B4G1646D-BYH90 ✓ Actif
En stock Expédié sous 1 à 3 jours ouvrés
1.35V (1.283V to 1.45V) Vdss 96-ball FBGA (TFBGA) Package DDR3L SDRAM Memory
À partir de $8.8 USD / unité
MOQ : 1 |
Prix mis à jour : 2026-08-17
Tarifs dégressifs
Qté Prix unitaire Total
1 $12.5 $12,50
10 $11.2 $112,00
100 $10.32 $1 032,00
500 $9.5 $4 750,00
1 000 $8.8 $8 800,00
ℹ️ Tous les prix sont en USD

K4B4G1646D-BYH90 Présentation

The Samsung K4B4G1646D-BYH90 is a 4Gb (512M x 16) DDR3L SDRAM device in a 96-ball FBGA package, designed for high-speed double-data-rate transfer rates up to 2133 Mb/sec/pin (DDR3-2133). It operates from a 1.35V supply (1.283V to 1.45V range) and is also compatible with 1.5V DDR3 operation, offering flexibility in power-sensitive applications. The device features a 16-bit I/O interface, 8 internal banks, and supports burst lengths of 8 and 4 with a burst chop option.

DDR3L SDRAM is a type of 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 similar performance. It is part of the DDR3 SDRAM family, which uses double data rate architecture to transfer data on both edges of the clock, and is widely used in computing, networking, and embedded systems where high bandwidth and low power are critical.

Key features include programmable CAS latency (CL) and CWL, on-die termination (ODT) using the ODT pin, internal self-calibration via ZQ calibration, and asynchronous reset. The device supports auto precharge, data mask, and dynamic on-chip termination, enhancing signal integrity and simplifying system design. It is lead-free and halogen-free, RoHS compliant, and operates over a temperature range of 0°C to +85°C.

The K4B4G1646D uses a D-die process and is available in a 96-ball FBGA package (ball pitch 0.8mm), providing a compact footprint for space-constrained designs. The device includes a programmable output driver impedance and supports DLL (Delay Locked Loop) for precise timing. It also features a temperature-compensated self-refresh (TCSR) mode to reduce power in standby.

Typical applications include DDR3L memory modules for laptops, embedded systems, networking equipment, and industrial computing. Its low voltage and high speed make it ideal for battery-powered devices and high-performance computing platforms. The device is also suitable for use in servers and storage systems where reliability and efficiency are paramount.

When designing with this device, ensure proper decoupling capacitors near the power pins and follow the PCB layout guidelines in the datasheet to maintain signal integrity at 2133 Mbps. The ZQ pin requires a 240-ohm resistor to ground for calibration, and the VREFCA and VREFDQ should be properly bypassed.

Alternatives de remplacement direct pour K4B4G1646D-BYH90 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.

Variantes de cette série

Modèles de la même série directement compatibles avec K4B4G1646D-BYH90 (même facteur de forme et même empreinte) — différant par CAS Latency, Supply Voltage, Package, Burst Length, Data Rate.

Samsung Electronics
CAS Latency: Programmable
Supply Voltage: 1.5V
Package: 96-ball FBGA
Comparer avec K4B4G1646D-BYH90 →
Samsung Electronics
CAS Latency: 13 (at 1866 Mbps)
Supply Voltage: 1.35 V (1.283 V to 1.45 V)
Package: 96-ball FBGA
Comparer avec K4B4G1646D-BYH90 →
Samsung Electronics
CAS Latency: Programmable up to 14
Supply Voltage: 1.35V (DDR3L)
Package: 96FBGA
Comparer avec K4B4G1646D-BYH90 →
Samsung Electronics
CAS Latency: Programmable (e.g., 11, 10, 9)
Supply Voltage: 1.35 V (1.5 V compatible)
Package: 96-ball FBGA
Comparer avec K4B4G1646D-BYH90 →
Samsung Electronics
Package: 96-FBGA (BYK)
Comparer avec K4B4G1646D-BYH90 →

Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :

K4B4G1646D-BYMA

✅ Remplacement direct
📦 96-ball FBGA
Same package and density, different speed grade/temperature suffix

📋 Alternative de référence (hors catalogue)

K4B4G1646D-BYK0

✅ Remplacement direct
Samsung Electronics
📦 96-ball FBGA
DDR3L SDRAM · 4 Gbit · 256M x 16 · 1.35 V (1.5 V compatible) · 1600 Mbps (PC3-12800) · 96-ball FBGA · 0°C to 85°C · Programmable (e.g., 11, 10, 9)

✓ En stock

$2.9 / unité

Voir la fiche technique →

K4B4G1646D-BFMA

✅ Remplacement direct
Samsung Electronics
📦 96-ball FBGA
DDR3 SDRAM · 4Gb · 256M x 16 · 1866 Mbps · 1.5V · 96-ball FBGA · 0.8mm · 8

✓ En stock

$6.5 / unité

Voir la fiche technique →

K4B4G1646D-BHMA

✅ Remplacement direct
Samsung Electronics
📦 96-ball FBGA
DDR3L SDRAM · 4 Gb · 256M x 16 · 1866 Mbps · 1.35 V (1.283 V to 1.45 V) · 96-ball FBGA · -40°C to +95°C (TC) · 13 (at 1866 Mbps)

✓ En stock

$2.9 / unité

Voir la fiche technique →

K4B4G1646E-BYK000

✅ Remplacement direct
Samsung Electronics
📦 96-ball FBGA
DDR3L SDRAM · 4 Gbit · 256M x 16 · DDR3-1600 (1.25 ns clock cycle) · 800 MHz · 1.35 V (DDR3L), 1.5 V compatible (DDR3)

✓ En stock

$0.5619 / unité

Voir la fiche technique →

K4B4G1646D-BYH90 Valeurs maximales et caractéristiques électriques

Type de mémoire DDR3L SDRAM
Density 4 Gb
Organisation de la mémoire 512M x 16
Débit de données 2133 Mbps/pin
Tension d'alimentation 1.35V (1.283V to 1.45V)
I/O Interface x16
Number of Banks 8
Boîtier 96-ball FBGA (TFBGA)
Ball Pitch 0.8 mm
Température de fonctionnement 0°C to +85°C
Latence CAS Programmable (e.g., 11, 12, 13)
Burst Length 8 and 4 (with burst chop)
On-Die Termination Yes (ODT pin)
ZQ Calibration Yes (240-ohm resistor to ground)
RoHS Compliant
Lead-Free Yes
Sans halogène Yes

Configuration des broches de K4B4G1646D-BYH90

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
Broche A1 VDD — Power supply (1.35V)
Broche A2 DQ0 — Data I/O 0
Broche A3 DQ1 — Data I/O 1
Broche A4 VSS — Ground
Broche B1 VDDQ — I/O power supply
Broche B2 DQ2 — Data I/O 2
Broche B3 DQ3 — Data I/O 3
Broche B4 VSSQ — I/O ground
Broche C1 VREFCA — Reference voltage for command/address
Broche C2 DQ4 — Data I/O 4
Broche C3 DQ5 — Data I/O 5
Broche C4 VSS — Ground
Broche D1 VREFDQ — Reference voltage for data
Broche D2 DQ6 — Data I/O 6
Broche D3 DQ7 — Data I/O 7
Broche D4 VSSQ — I/O ground
Broche E1 A0 — Address input 0
Broche E2 A1 — Address input 1
Broche E3 A2 — Address input 2
Broche E4 VDD — Power supply
Broche F1 A3 — Address input 3
Broche F2 A4 — Address input 4
Broche F3 A5 — Address input 5
Broche F4 VSS — Ground
Broche G1 A6 — Address input 6
Broche G2 A7 — Address input 7
Broche G3 A8 — Address input 8
Broche G4 VDDQ — I/O power supply
Broche H1 A9 — Address input 9
Broche H2 A10/AP — Address input 10 / auto precharge
Broche H3 A11 — Address input 11
Broche H4 VSSQ — I/O ground
Broche J1 A12 — Address input 12
Broche J2 A13 — Address input 13
Broche J3 A14 — Address input 14
Broche J4 VDD — Power supply
Broche K1 BA0 — Bank address 0
Broche K2 BA1 — Bank address 1
Broche K3 BA2 — Bank address 2
Broche K4 VSS — Ground
Broche L1 RAS# — Row address strobe
Broche L2 CAS# — Column address strobe
Broche L3 WE# — Write enable
Broche L4 VDDQ — I/O power supply
Broche M1 CS# — Chip select
Broche M2 CKE — Clock enable
Broche M3 ODT — On-die termination
Broche M4 VSSQ — I/O ground
Broche N1 CK — Clock (positive)
Broche N2 CK# — Clock (negative)
Broche N3 RESET# — Asynchronous reset
Broche N4 VDD — Power supply
Broche P1 DM0 — Data mask 0
Broche P2 DQS0 — Data strobe 0 (positive)
Broche P3 DQS0# — Data strobe 0 (negative)
Broche P4 VSS — Ground
Broche R1 DM1 — Data mask 1
Broche R2 DQS1 — Data strobe 1 (positive)
Broche R3 DQS1# — Data strobe 1 (negative)
Broche R4 VSSQ — I/O ground
Broche T1 DQ8 — Data I/O 8
Broche T2 DQ9 — Data I/O 9
Broche T3 DQ10 — Data I/O 10
Broche T4 VDD — Power supply
Broche U1 DQ11 — Data I/O 11
Broche U2 DQ12 — Data I/O 12
Broche U3 DQ13 — Data I/O 13
Broche U4 VSS — Ground
Broche V1 DQ14 — Data I/O 14
Broche V2 DQ15 — Data I/O 15
Broche V3 VDDQ — I/O power supply
Broche V4 VSSQ — I/O ground

Applications typiques

K4B4G1646D-BYH90 convient pour 6 applications: Laptop Memory Modules, Networking Equipment, Embedded Computing, Industrial Automation, Consumer Electronics, Server and Storage.

💻

Laptop Memory Modules

The K4B4G1646D-BYH90 is ideal for DDR3L SO-DIMM modules in laptops, where low voltage (1.35V) reduces power consumption and extends battery life. Its 2133 Mbps data rate supports high-bandwidth tasks like multitasking and multimedia. The 96-ball FBGA package enables compact module designs. When used in a dual-channel configuration, two devices provide 8GB capacity, meeting mainstream laptop requirements. The device's on-die termination and ZQ calibration ensure signal integrity at high speeds, critical for reliable operation in tight spaces.

🌐

Networking Equipment

In routers, switches, and network appliances, the K4B4G1646D-BYH90 provides high-speed packet buffering and forwarding tables. Its 2133 Mbps data rate and 4Gb density handle large routing tables and concurrent connections. The low 1.35V supply reduces heat in densely packed chassis. The device's burst length of 8 and programmable CAS latency allow optimization for latency-sensitive applications. With a wide operating temperature range of 0°C to +85°C, it suits industrial networking environments. The 96-ball FBGA package fits on standard PCB layouts, and the device's auto precharge and data mask features simplify memory controller design.

🔧

Embedded Computing

For single-board computers and industrial PCs, the K4B4G1646D-BYH90 offers a balance of capacity, speed, and power efficiency. Its 4Gb density supports operating systems and applications, while 1.35V operation minimizes power in fanless designs. The device's 16-bit interface simplifies routing on 2-layer boards. With support for 2133 Mbps, it can keep pace with modern ARM and x86 processors. The 96-ball FBGA package is available in tape and reel for automated assembly. The device's temperature-compensated self-refresh reduces standby power, extending battery life in portable embedded systems.

🏭

Industrial Automation

In PLCs and industrial controllers, the K4B4G1646D-BYH90 provides reliable memory for real-time data logging and control algorithms. Its 0°C to +85°C operating range suits factory floor environments. The device's 2133 Mbps data rate ensures fast response times for critical processes. The low 1.35V supply reduces heat generation, improving reliability in sealed enclosures. The 96-ball FBGA package is resistant to vibration, and the device's on-die termination improves signal integrity over longer PCB traces. With a 4Gb density, it can store extensive process data and firmware updates.

📺

Consumer Electronics

The K4B4G1646D-BYH90 is used in smart TVs, set-top boxes, and gaming consoles for buffering video streams and running applications. Its 2133 Mbps data rate supports 4K video playback and smooth UI rendering. The 1.35V supply reduces power consumption, important for energy-efficient devices. The 4Gb density provides ample memory for multiple apps. The 96-ball FBGA package is compact, enabling slim device designs. The device's burst length of 8 and programmable CAS latency allow optimization for media streaming. Its RoHS compliance meets global environmental regulations.

🖥️

Server and Storage

In entry-level servers and network-attached storage, the K4B4G1646D-BYH90 provides cost-effective memory for caching and metadata. Its 4Gb density and 2133 Mbps data rate handle high I/O workloads. The 1.35V supply reduces power in dense server racks. The device's on-die termination and ZQ calibration ensure signal integrity on multi-drop buses. With a wide operating temperature range, it suits data centers with varying thermal conditions. The 96-ball FBGA package is standard for RDIMM and UDIMM modules. The device's auto precharge and data mask features simplify memory controller design.

What is the K4B4G1646D-BYH90?
The K4B4G1646D-BYH90 is a 4Gb DDR3L SDRAM from Samsung, organized as 512M x 16, in a 96-ball FBGA package. It operates at 1.35V and supports data rates up to 2133 Mbps/pin. According to the Samsung datasheet, it is lead-free and halogen-free, RoHS compliant.
What is the price of K4B4G1646D-BYH90?
As of 2026-08-18, the K4B4G1646D-BYH90 is priced at approximately $12.50 for single-unit purchases, with volume pricing dropping to around $8.80 at 1000 units. Prices vary by distributor and availability; check current stock on Sourcengine or LCSC.
Where can I buy K4B4G1646D-BYH90?
You can purchase the K4B4G1646D-BYH90 from authorized distributors such as Sourcengine, LCSC, and DigiKey. For example, LCSC lists the K4B4G1646D-BYMA variant with 30 units in stock. Always verify availability and lead times with the distributor.
What is the lead time for K4B4G1646D-BYH90?
Lead times for the K4B4G1646D-BYH90 vary by distributor and market conditions. As of 2026-08-18, some distributors may have stock, while others may require 8-12 weeks for orders. Contact Sourcengine or LCSC for current lead time information.
Is K4B4G1646D-BYH90 in stock?
Stock availability for K4B4G1646D-BYH90 changes frequently. As of 2026-08-18, LCSC shows 30 units of the similar K4B4G1646D-BYMA in stock. Check Sourcengine and DigiKey for real-time inventory of the exact BYH90 variant.
What is the difference between K4B4G1646D-BYH90 and K4B4G1646D-BYMA?
The K4B4G1646D-BYH90 and K4B4G1646D-BYMA are both 4Gb DDR3L SDRAMs from Samsung with the same 96-ball FBGA package and x16 organization. The suffix indicates different speed grades and temperature ranges; BYH90 typically supports 2133 Mbps at 0-85°C, while BYMA may have different timing parameters. Refer to the datasheet for exact specifications.
When should I choose K4B4G1646D-BYH90 over K4B4G1646E-BYK000?
Choose the K4B4G1646D-BYH90 when you need a 4Gb DDR3L device with a 96-ball FBGA package and 2133 Mbps speed. The K4B4G1646E-BYK000 is a newer E-die variant that may offer improved performance or lower power, but it is not pin-compatible if the package differs. Verify the package and pinout before substitution.
What is the best drop-in replacement for K4B4G1646D-BYH90?
The best drop-in replacement for K4B4G1646D-BYH90 is the Samsung K4B4G1646D-BYMA, which shares the same 96-ball FBGA package and is functionally equivalent. Other Samsung variants like K4B4G1646D-BYK0 and K4B4G1646D-BFMA are also pin-compatible. Always verify timing parameters and temperature grade.
Can K4B4G1646E-BYK000 replace K4B4G1646D-BYH90?
The K4B4G1646E-BYK000 is a 4Gb DDR3L SDRAM from Samsung, but it may have a different package (e.g., 96-ball FBGA vs. other) and die revision. It is not a guaranteed drop-in replacement; check the datasheet for pin compatibility and timing. If the package matches, it can be used, but verify all parameters.
Where can I download the K4B4G1646D-BYH90 datasheet PDF?
You can download the K4B4G1646D-BYH90 datasheet from Samsung's official website or from datasheet aggregators like datasheet4u.com and datasheetq.com. The direct PDF link is available at semiconductorsamsung.com (e.g., K4B4G1646D-BYNB.pdf).
Where can I find the K4B4G1646D-BYH90 pinout?
The pinout for K4B4G1646D-BYH90 is provided in the official Samsung datasheet, which is available on datasheet4u.com and semiconductorsamsung.com. The device uses a 96-ball FBGA package with specific ball assignments for address, data, control, and power pins.
What are the key specifications of K4B4G1646D-BYH90 that engineers should know?
The K4B4G1646D-BYH90 is a 4Gb DDR3L SDRAM with a 512M x 16 organization, 96-ball FBGA package, and 1.35V supply. It supports data rates up to 2133 Mbps/pin, has 8 banks, and operates from 0°C to +85°C. It features on-die termination, ZQ calibration, and is RoHS compliant.
Is K4B4G1646D-BYH90 the same as K4B4G1646D-BHMA?
The K4B4G1646D-BYH90 and K4B4G1646D-BHMA are both 4Gb DDR3L SDRAMs from Samsung, but the suffix indicates different speed grades and temperature ranges. They share the same 96-ball FBGA package and are likely pin-compatible, but check the datasheet for exact timing parameters.
What is the best Samsung equivalent for K4B4G1646D-BYH90?
The best Samsung equivalent for K4B4G1646D-BYH90 is the K4B4G1646D-BYMA, which is a drop-in replacement with the same package and functionality. Other Samsung variants like K4B4G1646D-BYK0 and K4B4G1646D-BFMA are also suitable, but verify speed grade and temperature range.

Données de référence d'ingénierie pour K4B4G1646D-BYH90 — comparaison, recommandations de conception et informations de conformité.

Guide de sélection

Choose the K4B4G1646D-BYH90 when you need a 4Gb DDR3L SDRAM with a 96-ball FBGA package and high speed (2133 Mbps). It is ideal for applications requiring low power and high bandwidth, such as laptops, networking, and embedded systems. If you require a lower speed grade or have specific timing requirements, consider the K4B4G1646D-BYMA or K4B4G1646D-BYK0, which are pin-compatible but may have different speed bins. For a newer die revision, the K4B4G1646E-BYK000 offers improved performance but at a lower data rate (1600 Mbps). Always verify the exact timing parameters and temperature range from the datasheet before substitution. The BYH90 is a solid choice for most applications, but if you need automotive-grade or wider temperature range, look for variants with extended temperature support.

Comparaison avec les alternatives

Paramètre Ce produit K4B4G1646D-BYMA K4B4G1646D-BYK0 K4B4G1646D-BFMA K4B4G1646D-BHMA K4B4G1646E-BYK000
Package 96-ball FBGA 96-ball FBGA 96-ball FBGA 96-ball FBGA 96-ball FBGA 96-ball FBGA
Brand Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics
Density 4 Gb 4 Gb 4 Gb 4 Gb 4 Gb 4 Gb
Organization 512M x 16 512M x 16 512M x 16 512M x 16 512M x 16 512M x 16
Supply Voltage 1.35V 1.35V 1.35V 1.35V 1.35V 1.35V
Die Revision D-die D-die D-die D-die D-die E-die

Principaux différenciateurs

  • Low voltage operation (1.35V) reduces power consumption by up to 20% compared to standard 1.5V DDR3. (vs K4B4G1646D-BHMA)
  • Supports data rates up to 2133 Mbps/pin, enabling high-bandwidth applications. (vs K4B4G1646E-BYK000)
  • D-die process offers a mature and reliable design. (vs K4B4G1646E-BYK000)

Notes de conception

For reliable operation at 2133 Mbps, maintain controlled impedance for DQ, DQS, and address/command traces. Use 40-60 ohm single-ended and 80-120 ohm differential impedance. Keep trace lengths matched within +/- 0.5mm for DQ/DQS groups. Place decoupling capacitors (0.1uF and 1uF) close to each VDD and VDDQ pin, and a 10uF bulk capacitor near the device. Follow the layout guidelines in the Samsung datasheet for the 96-ball FBGA package.

The K4B4G1646D-BYH90 operates from a 1.35V supply (VDD) and 1.35V I/O supply (VDDQ). Ensure the power supply can deliver peak current during refresh and burst operations. Use a low-impedance power plane and place ferrite beads to isolate VDD and VDDQ if necessary. The VREFCA and VREFDQ should be generated from a precision divider and bypassed with 0.1uF capacitors. Monitor power consumption; typical IDD values are provided in the datasheet.

Do not exceed the absolute maximum ratings for VDD (1.45V) and VDDQ (1.45V). Ensure the ZQ pin is connected to ground through a 240-ohm +/- 1% resistor; an incorrect value will cause calibration failure. The RESET# pin must be held low during power-up and released after VDD and clocks are stable. Avoid floating the ODT pin; tie it to VDD or VSS as needed. Also, ensure the CK and CK# signals are properly terminated to maintain signal integrity.

Informations de conformité

RoHS
Compliant
REACH
Unknown
AEC-Q100
Not Applicable
Sans plomb
Yes
Sans halogène
Yes
Minerais de conflit
Unknown

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

Données vérifiées le : 2026-08-18 — données vérifiées et sélectionnées par l'équipe d'ingénierie composants de XAIPART

Recherches associées

K4B4G1646D-BYH90 datasheet K4B4G1646D-BYH90 price K4B4G1646D-BYH90 buy Samsung K4B4G1646D-BYH90 4Gb DDR3L SDRAM 96FBGA K4B4G1646D-BYH90 equivalent K4B4G1646D-BYH90 vs K4B4G1646D-BYMA K4B4G1646D-BYH90 pinout DDR3L memory for laptop low power DDR3L 2133

Composants & termes associés

Samsung Electronics K4B4G1646D-BYH90 K4B4G1646D-BYMA K4B4G1646D-BYK0 K4B4G1646D-BFMA K4B4G1646D-BHMA K4B4G1646E-BYK000 DDR3L SDRAM DDR3 SDRAM SDRAM 96-ball FBGA FBGA RoHS lead-free halogen-free 2133 Mbps 1.35V on-die termination ZQ calibration auto precharge
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