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Samsung Electronics

K4B4G1646I-BYK0 - 4Gb DDR3L SDRAM 256Mx16 | Samsung

Référence : K4B4G1646I-BYK0 ✓ Actif
En stock Expédié sous 1 à 3 jours ouvrés
1.35 V Vdss FBGA-96 Package 933 MHz Speed DDR3L SDRAM Memory
À partir de $1.75 USD / unité
MOQ : 1 |
Prix mis à jour : 2026-08-17
Tarifs dégressifs
Qté Prix unitaire Total
1 $2.52 $2,52
10 $2.35 $23,50
100 $2.1 $210,00
500 $1.9 $950,00
1 000 $1.75 $1 750,00
ℹ️ Tous les prix sont en USD

K4B4G1646I-BYK0 Présentation

The Samsung K4B4G1646I-BYK0 is a 4Gb DDR3L SDRAM organized as 256M x 16, operating at 1.35V with a data rate of 1866 Mbps (933 MHz clock). It is housed in a 96-ball FBGA package, offering high density and low power consumption for mobile and embedded applications.

DDR3L SDRAM (Double Data Rate 3 Low Voltage) is a type of synchronous dynamic random-access memory that operates at 1.35V, reducing power consumption by about 20% compared to standard 1.5V DDR3. It is part of the DDR3 memory family, which uses double data rate signaling to transfer data on both edges of the clock, and is widely used in laptops, servers, and embedded systems where power efficiency is critical.

Key features include a 4Gb density, 16-bit I/O width, 1.35V core voltage, and support for data rates up to 1866 Mbps. The device features on-die termination (ODT), programmable CAS latency, and burst lengths of 8 and 4. It also includes auto-refresh and self-refresh modes for power saving, making it suitable for battery-powered devices.

The K4B4G1646I-BYK0 uses a high-performance CMOS process and a bank architecture of 8 banks, enabling high-speed random access. The FBGA-96 package provides excellent thermal and electrical performance, with a ball pitch of 0.8mm. The device supports a temperature range of 0°C to 95°C (case temperature), ensuring reliable operation in various environments.

Typical applications include mobile devices, embedded computing, networking equipment, and industrial automation. Its low voltage and high density make it ideal for memory-intensive applications where space and power are constrained.

When designing with this memory, ensure proper decoupling capacitors near the power pins and follow the layout guidelines in the datasheet to minimize signal integrity issues. The device requires a stable 1.35V supply and a reference voltage (VREF) for the I/O.

Alternatives de remplacement direct pour K4B4G1646I-BYK0 — 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 K4B4G1646I-BYK0 (même facteur de forme et même empreinte) — différant par Package, Supply Voltage, Burst Length, CAS Latency, Data Rate.

Samsung Electronics
Package: 96-ball FBGA
Supply Voltage: 1.35 V (1.5 V compatible)
Burst Length: 8 (with burst chop 4)
Comparer avec K4B4G1646I-BYK0 →
Samsung Electronics
Package: 96-ball FBGA (13 x 9 mm, 0.8 mm pitch)
Supply Voltage: 1.35 V (1.283 V to 1.45 V)
Burst Length: 8 (fixed), 4 (burst chop)
Comparer avec K4B4G1646I-BYK0 →
Samsung Electronics
Package: 96-FBGA (BYK)
Comparer avec K4B4G1646I-BYK0 →
Micron Technology
Package: 96-FBGA (9x14 mm)
CAS Latency: 11
Comparer avec K4B4G1646I-BYK0 →

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

K4B4G1646E-BYK0

✅ Remplacement direct
Samsung Electronics
📦 FBGA-96
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)

✓ En stock

$1.8 / unité

Voir la fiche technique →

K4B4G1646D-BYK0

✅ Remplacement direct
Samsung Electronics
📦 FBGA-96
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 →

K4B4G1646E-BYK000

✅ Remplacement direct
Samsung Electronics
📦 FBGA-96
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 →

MT41K256M16HA-125

✅ Remplacement direct ⚠️ Spécifications non vérifiées
Micron Technology
📦 FBGA-96
SDRAM - DDR3L · 4Gbit (256M x 16) · 16 bit · 800 MHz · 13.75 ns · 1.35 V · 96-FBGA (9x14 mm) · 96

✓ En stock

$6.3636 / unité

Voir la fiche technique →

H5TQ4G63AFR-PBA

✅ Remplacement direct ⚠️ Spécifications non vérifiées
📦 FBGA-96
Cross-brand, DDR3L 4Gb 256Mx16

📋 Alternative de référence (hors catalogue)

K4B4G1646I-BYK0 Valeurs maximales et caractéristiques électriques

Type de mémoire DDR3L SDRAM
Taille de mémoire 4 Gb
Organisation de la mémoire 256M x 16
Tension d'alimentation 1.35 V
Débit de données 1866 Mbps
Clock Frequency 933 MHz
Boîtier FBGA-96
Température de fonctionnement 0°C to 95°C (Tc)
Interface Parallel
Number of Banks 8
Burst Length 8, 4
RoHS Compliant
Type de montage Surface Mount
Lead-Free Yes

Configuration des broches de K4B4G1646I-BYK0

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 input/output 0
Broche A3 DQ1 — Data input/output 1
Broche B1 VSS — Ground
Broche B2 DQ2 — Data input/output 2
Broche B3 DQ3 — Data input/output 3
Broche C1 VDDQ — I/O power supply
Broche C2 DQ4 — Data input/output 4
Broche C3 DQ5 — Data input/output 5
Broche D1 VSSQ — I/O ground
Broche D2 DQ6 — Data input/output 6
Broche D3 DQ7 — Data input/output 7
Broche E1 DQS0 — Data strobe 0
Broche E2 DQS#0 — Data strobe complement 0
Broche E3 VSS — Ground

Applications typiques

K4B4G1646I-BYK0 convient pour 6 applications: Mobile Devices, Embedded Computing, Networking Equipment, Industrial Automation, Consumer Electronics, Data Storage Systems.

📱

Mobile Devices

The K4B4G1646I-BYK0's low 1.35V operation and 4Gb density make it ideal for smartphones and tablets. Its FBGA-96 package saves board space, and the 1866 Mbps data rate supports high-bandwidth applications like HD video and gaming. Power efficiency extends battery life, while the 0°C to 95°C range covers typical consumer use.

🔧

Embedded Computing

In embedded systems, the K4B4G1646I-BYK0 provides high-density volatile storage for data logging, real-time processing, and OS operation. Its 1.35V supply reduces thermal load, and the 96-ball FBGA allows compact PCB layouts. The 1866 Mbps speed ensures fast data access for industrial controllers and IoT gateways.

🌐

Networking Equipment

Routers, switches, and network appliances require fast, reliable memory for packet buffering and routing tables. The K4B4G1646I-BYK0's 1866 Mbps data rate and 4Gb capacity handle high-throughput traffic. Its low voltage reduces power consumption in always-on equipment, and the FBGA package withstands continuous operation.

🏭

Industrial Automation

Industrial controllers and PLCs use the K4B4G1646I-BYK0 for program storage and data buffering. Its 0°C to 95°C temperature range suits factory environments, and the 1.35V operation minimizes heat generation. The 256Mx16 organization simplifies interfacing with 16-bit microcontrollers, and the FBGA package offers robust solder joints.

📺

Consumer Electronics

Smart TVs, set-top boxes, and gaming consoles use DDR3L for system memory. The K4B4G1646I-BYK0's 4Gb capacity supports multitasking and multimedia, while 1.35V reduces power consumption. Its high data rate enables smooth video playback and responsive user interfaces.

🖥️

Data Storage Systems

In SSDs and network-attached storage, the K4B4G1646I-BYK0 serves as cache memory. Its low latency and high bandwidth improve read/write performance. The 1.35V supply reduces power in data centers, and the FBGA package supports high-density board designs.

What is the memory size of K4B4G1646I-BYK0?
The K4B4G1646I-BYK0 is a 4Gb DDR3L SDRAM, organized as 256M x 16. According to Samsung datasheet, it provides 4,294,967,296 bits of memory, suitable for applications requiring high-density volatile storage.
What is the operating voltage of K4B4G1646I-BYK0?
The K4B4G1646I-BYK0 operates at 1.35V, which is the DDR3L standard. This low voltage reduces power consumption by approximately 20% compared to standard 1.5V DDR3, making it ideal for power-sensitive designs.
What is the package type of K4B4G1646I-BYK0?
The K4B4G1646I-BYK0 comes in a 96-ball FBGA package. This surface-mount package offers a compact footprint and good thermal performance, commonly used in mobile and embedded systems.
What is the data rate of K4B4G1646I-BYK0?
The K4B4G1646I-BYK0 supports a data rate of 1866 Mbps, corresponding to a clock frequency of 933 MHz. This high-speed interface enables fast data transfer for memory-intensive applications.
Is K4B4G1646I-BYK0 RoHS compliant?
Yes, the K4B4G1646I-BYK0 is RoHS compliant. According to distributor listings, it is lead-free and meets the Restriction of Hazardous Substances directive, ensuring environmental safety.
Where can I buy K4B4G1646I-BYK0?
You can purchase K4B4G1646I-BYK0 from distributors like DigiKey, LCSC, and Win Source. As of 2026-08-18, LCSC lists it at $2.5219, and DigiKey offers the K4B4G1646E-BYK000 variant. Check stock and pricing on their websites.
What is the price of K4B4G1646I-BYK0?
As of 2026-08-18, the price of K4B4G1646I-BYK0 is approximately $2.52 per unit at LCSC. Prices vary by quantity and distributor; for example, DigiKey may offer different pricing for the E-BYK000 variant.
What is the lead time for K4B4G1646I-BYK0?
The lead time for K4B4G1646I-BYK0 depends on distributor stock. LCSC shows it in stock, while DigiKey lists the E-BYK000 variant as available. For large orders, lead time may be 4-8 weeks. Contact the distributor for current lead times.
Is K4B4G1646I-BYK0 in stock?
Yes, K4B4G1646I-BYK0 is in stock at LCSC and other distributors as of 2026-08-18. Wolfchip also reports in stock. Availability can change, so verify with the distributor before ordering.
What is the difference between K4B4G1646I-BYK0 and K4B4G1646E-BYK0?
The K4B4G1646I-BYK0 and K4B4G1646E-BYK0 are both 4Gb DDR3L SDRAMs from Samsung, but the 'I' and 'E' denote different die revisions. The 'I' version is newer and may have improved performance or power characteristics. They are pin-compatible and can be used interchangeably in most designs.
Can K4B4G1646I-BYK0 replace K4B4G1646E-BYK0?
Yes, the K4B4G1646I-BYK0 is a drop-in replacement for the K4B4G1646E-BYK0. Both share the same FBGA-96 package, 4Gb density, and 256Mx16 organization. Verify the die revision differences and ensure timing parameters match your design.
What is the best drop-in replacement for K4B4G1646I-BYK0?
The best drop-in replacement is the Samsung K4B4G1646E-BYK0, which is pin-compatible and electrically similar. Other options include the K4B4G1646D-BYK0 and cross-brand equivalents like Micron MT41K256M16HA-125, but verify timing and voltage compatibility.
Where can I download the K4B4G1646I-BYK0 datasheet?
You can download the K4B4G1646I-BYK0 datasheet from alldatasheet.com or the Samsung website. The datasheet for the E-BYK0 variant is available at https://www.alldatasheet.com/datasheet-pdf/pdf/1131837/SAMSUNG/K4B4G1646E-BYK0.html.
What are the key specifications of K4B4G1646I-BYK0 that engineers should know?
Key specifications include 4Gb density, 256Mx16 organization, 1.35V supply, 1866 Mbps data rate, FBGA-96 package, and 0°C to 95°C operating temperature. These parameters define its use in low-power, high-density memory applications.
Is K4B4G1646I-BYK0 suitable for automotive applications?
The K4B4G1646I-BYK0 has an operating temperature range of 0°C to 95°C, which may not meet automotive grade requirements (typically -40°C to 125°C). For automotive, consider Samsung's automotive-grade DDR3L parts or verify with the manufacturer.

Données de référence d'ingénierie pour K4B4G1646I-BYK0 — comparaison, recommandations de conception et informations de conformité.

Guide de sélection

Choose the K4B4G1646I-BYK0 when you need a 4Gb DDR3L SDRAM with low power consumption and high density. It is ideal for mobile and embedded applications where battery life and space are critical. If you require a drop-in replacement, the K4B4G1646E-BYK0 is a direct substitute with the same package and pinout. For cross-brand options, the Micron MT41K256M16HA-125 offers similar specs but verify timing parameters. If cost is a concern, consider the older K4B4G1646D-BYK0, but ensure it meets your performance requirements.

Comparaison avec les alternatives

Paramètre Ce produit K4B4G1646E-BYK0 K4B4G1646D-BYK0 MT41K256M16HA-125
Package FBGA-96 FBGA-96 FBGA-96 FBGA-96
Brand Samsung Electronics Samsung Electronics Samsung Electronics Micron Technology
Memory Size 4 Gb 4 Gb 4 Gb 4 Gb
Organization 256M x 16 256M x 16 256M x 16 256M x 16
Supply Voltage 1.35 V 1.35 V 1.35 V 1.35 V
Data Rate 1866 Mbps 1866 Mbps 1866 Mbps 1866 Mbps
Operating Temperature 0°C to 95°C 0°C to 95°C 0°C to 95°C 0°C to 95°C
RoHS Compliant Compliant Compliant Compliant

Principaux différenciateurs

  • Low voltage operation (vs MT41K256M16HA-125)
  • High density in small package (vs K4B2G1646F-BYK0)
  • Newer die revision (vs K4B4G1646E-BYK0)

Notes de conception

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 DQS signals to reduce noise and signal integrity issues.

The FBGA-96 package has a thermal resistance of approximately 20°C/W. At 1.35V and typical currents, power dissipation is low, but ensure adequate airflow or a thermal pad for high-temperature environments. Monitor case temperature to stay within 95°C.

Route address and control signals with matched lengths to ensure timing. Use series termination resistors (22-33 ohm) for DQ and DQS lines. Follow the layout guidelines in the Samsung datasheet for optimal performance.

Informations de conformité

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

RoHS compliant per distributor listings. AEC-Q100 not applicable for memory ICs.

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

Recherches associées

K4B4G1646I-BYK0 datasheet Samsung K4B4G1646I-BYK0 4Gb DDR3L SDRAM 256Mx16 FBGA-96 DDR3L memory K4B4G1646I-BYK0 price K4B4G1646I-BYK0 vs K4B4G1646E-BYK0 K4B4G1646I-BYK0 replacement K4B4G1646I-BYK0 buy K4B4G1646I-BYK0 pinout low power DDR3L for mobile

Composants & termes associés

Samsung Electronics K4B4G1646I-BYK0 K4B4G1646E-BYK0 K4B4G1646D-BYK0 MT41K256M16HA-125 DDR3L SDRAM SDRAM FBGA-96 BGA RoHS 1.35V 1866 Mbps 256Mx16 mobile devices embedded computing
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