Samsung Electronics

K4A8G165WG-BCWE - 8Gb DDR4 SDRAM 3200Mbps 1.2V | Samsung

MPN: K4A8G165WG-BCWE ✓ Active
In Stock Ships in 1-3 business days
1.2 V Vdss 20 mA (per LCSC listing) Id FBGA-96 (BGA-96), surface mount Package 19 ns Speed DDR4 SDRAM (Volatile DRAM) Memory
From $35.98 USD / Unit
MOQ: 1 |
Price updated: 2026-09-01
Volume Pricing
Qty Unit Price Extended
1 $44.97 $44.97
10 $42.72 $427.20
100 $40.47 $4,047.00
500 $38.22 $19,110.00
1,000 $35.98 $35,980.00
ℹ️ All prices are in USD

Drop-in alternatives for K4A8G165WG-BCWE — 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:

K4A8G165WC-BCWE

Samsung Electronics
DDR4 SDRAM · 8 Gb · 512M x 16 · 3200 Mbps · 1.2 V · 2.5 V · 0°C to +95°C · 96-FBGA

✓ In Stock

$38 / Unit

View Datasheet →

K4A8G165WB-BCWE

Samsung Electronics
DDR4 SDRAM · 8 Gb · 512M x 16 · 3200 Mbps · 1.2 V · 0°C to +85°C · 96-FBGA · 19 ns

✓ In Stock

$6 / Unit

View Datasheet →

H5AN8G6NDJR-UHC

SK hynix
DDR4 SDRAM · 8 Gb · 512M x 16 · 3200 Mbps (PC4-25600) · 1.2 V · 1.2 V · 96 · FBGA-96 (13x7.5 mm)

✓ In Stock

$34.6 / Unit

View Datasheet →

NT6AN8T6WBJ1B1

Nanya Technology
DDR4 SDRAM · 8 Gb (512M x 16) · 3200 MT/s · 1.2 V · 1.2 V · 22 cycles · 8 (BL8), 4 (BC4) · 96-ball FBGA

✓ In Stock

$8.75 / Unit

View Datasheet →

MT40A512M16LY-062E IT:E

JEDEC DDR4 x16 footprint-compatible; 2666 Mbps class vs 3200 Mbps (-17%)

📋 Reference alternative (not in catalog)

K4A8G165WG-BCWE Maximum Ratings & Electrical Characteristics

Memory Type DDR4 SDRAM (Volatile DRAM)
Memory Size 8 Gbit
Memory Organization 512M x 16
Interface Parallel
Max Data Rate 3200 Mbps/pin
Clock Cycle Time 19 ns
Supply Voltage 1.2 V
Package FBGA-96 (BGA-96), surface mount
Operating Temperature 0C to +85C (commercial)
Refresh Auto/self refresh per DDR4 standard
Mounting Type Surface Mount
RoHS Status Compliant
Manufacturer Samsung Semiconductor, Inc.
Product Status Active
Typical Standby Current 20 mA (per LCSC listing)
Die Generation Samsung B-die, 8Gb DDR4 x16

K4A8G165WG-BCWE fbga-96 (bga-96), surface mount Pin Configuration Guide

Complete pinout information for K4A8G165WG-BCWE (fbga-96 (bga-96), surface mount package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.

fbga-96 (bga-96), surface mount package pinout diagram for K4A8G165WG-BCWE

No detailed pinout data available for K4A8G165WG-BCWE.

Refer to the datasheet for full pin configuration.

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for K4A8G165WG-BCWE 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

K4A8G165WG-BCWE is suitable for 6 applications: Desktop PC and Workstation DIMM Main Memory, Embedded SoC Memory Subsystem, Networking Routers and Switches, Industrial Gateways and Edge Computing, Consumer Electronics and Smart TV, Test, Measurement, and FPGA Memory Expansion.

🖥️

Desktop PC and Workstation DIMM Main Memory

The K4A8G165WG-BCWE's 8Gb density and 3200 Mbps data rate make it a mainstream building block for desktop DDR4 UDIMMs at the PC4-25600 speed class. Soldered eight or sixteen x16 devices per module, a single-rank 8 GB DIMM uses eight of these chips across the 64-bit data bus, delivering 25.6 GB/s peak bandwidth at 1.2V. The x16 organization halves the chip count versus x8 parts for a given bus width, reducing BOM cost on consumer modules. Because the device is commercial-temperature (0C to +85C) rated, it fits typical office and home desktop thermal envelopes where case airflow keeps DIMM surfaces below 85C. Per the Samsung datasheet, standard DDR4 termination and ZQ calibration schemes apply without special firmware.

🧩

Embedded SoC Memory Subsystem

ARM and x86 embedded SoCs with DDR4 controllers pair naturally with the K4A8G165WG-BCWE when designs need 1-2 GB of main memory in a small footprint. A single x16 device provides a 16-bit memory channel at up to 3200 Mbps, giving 3.2 GB/s per chip, and two chips form a 32-bit channel common on industrial ARM compute modules. The 1.2V supply simplifies the PMIC rail design (most embedded PMICs offer a dedicated DDR4 1.2V VDD rail with VTT tracking). Because the part uses the JEDEC DDR4 x16 ball map, reference designs validated on Samsung, Micron, or SK Hynix 8Gb x16 parts can usually second-source directly with a timing-table update in the bootloader or BSP.

🌐

Networking Routers and Switches

Enterprise routers, switches, and NPUs use DDR4 SDRAM as packet-buffer and table memory, and the K4A8G165WG-BCWE's 3200 Mbps rate provides the bandwidth needed to sustain line-rate buffering on 10-25 GbE platforms. Multiple x16 devices are arranged in a wide 64- or 128-bit controller channel; eight chips give 8 GB of buffer memory with 25.6 GB/s aggregate bandwidth. Network chassis environments are typically air-conditioned to 0-45C ambient, keeping junction temperatures within the 85C commercial limit with normal PCB heat spreading. Designers should follow the memory controller vendor's fly-by routing guidelines and length-match CK/CA and DQS groups per the Samsung datasheet electrical section.

🏭

Industrial Gateways and Edge Computing

Indoor industrial gateways, PLCs, and edge-AI boxes use the K4A8G165WG-BCWE where operating environments stay within the 0C to +85C commercial range, such as climate-controlled cabinets and indoor panel mounting. The 1.2V rail keeps DRAM power low (LCSC lists roughly 20 mA typical standby), which matters for fanless edge devices with strict thermal budgets - a single 8Gb device contributes only a few hundred milliwatts of dynamic power at moderate utilization. For unheated outdoor or cold-storage deployments, engineers must instead select the -I extended-temperature variant of the Samsung 8Gb x16 family, since the -BCWE grade is not qualified below 0C.

📺

Consumer Electronics and Smart TV

Smart TVs, set-top boxes, gaming peripherals, and NAS enclosures routinely need 1-4 GB of DDR4 main memory at commodity cost, and the K4A8G165WG-BCWE fits this role with its high volume availability (over 35,000 units across distributors as of August 2026) and PC4-25600-class bandwidth for 4K video decode and UI rendering. SoC platforms such as Amlogic, Rockchip, and Realtek-based designs with DDR4 x16 controllers can directly address this device; two chips provide 2 GB on a 32-bit bus. The commercial temperature range covers typical living-room conditions, and the 1.2V supply keeps standby power within ENERGY STAR-style idle budgets when combined with controller self-refresh modes.

🔧

Test, Measurement, and FPGA Memory Expansion

High-bandwidth test instruments and FPGA-based data-acquisition systems use DDR4 SDRAM for deep capture buffering, and the K4A8G165WG-BCWE's 3200 Mbps interface matches the memory-controller IP cores shipped with major FPGA families. An x16 DDR4 device on a dedicated memory daughterboard provides 1 GB per chip with 3.2 GB/s streaming bandwidth - enough for sustained multi-gigasample capture replay. DDR4 memory controllers in Xilinx/AMD, Microchip (Microsemi), and Lattice FPGA families include PHY calibration that handles on-die termination and write leveling, so single-rank x16 integration is a well-trodden path. Commercial-temperature rating suits bench instruments; choose the -I grade for field-deployed hardware.

What is the K4A8G165WG-BCWE?
The K4A8G165WG-BCWE is a Samsung 8Gb DDR4 SDRAM memory IC organized as 512M x 16, running at data rates up to 3200 Mbps (19 ns cycle time) from a single 1.2V supply. It is packaged in a 96-ball FBGA for surface-mount assembly and is specified over a 0C to +85C commercial temperature range. According to the Samsung datasheet and DigiKey product listing, it is an active, RoHS-compliant part intended for PC, embedded, and networking main-memory designs.
What is the price of K4A8G165WG-BCWE?
The K4A8G165WG-BCWE is listed from approximately $44.97 per unit as of 2026-09-01, based on the LCSC listing (from $44.9665) and XAIPART quantity-tier pricing. Volume tiers typically step down toward $36 at 1000-piece quantities. Because DDR4 commodity DRAM pricing fluctuates with the spot market, request a live quote from XAIPART or check DigiKey/Octopart for the current price before ordering.
Is K4A8G165WG-BCWE in stock and what is the lead time?
Yes, distributor stock is healthy as of 2026-09-01: icDirectory reported 15,150 pieces in stock (updated Aug 17, 2026) and Wolfchip reported 35,670 pieces (updated Aug 26, 2026). DigiKey Marketplace lists the part as buy-now, ships today. With multiple distributors holding inventory, standard lead time is typically days rather than the 16+ weeks seen during DRAM shortages; confirm the exact quantity you need with XAIPART before committing to a production build.
Where to buy K4A8G165WG-BCWE online?
You can buy the K4A8G165WG-BCWE from XAIPART (request a quote), DigiKey Marketplace, LCSC (part C41368581), JLCPCB, Win Source, and through Octopart's price comparison across 11 distributors. For production volumes, XAIPART offers consolidated sourcing with quantity-tier pricing; for prototype quantities, LCSC and DigiKey support small-quantity purchases with same-day shipping on stocked parts.
What is the best drop-in replacement for K4A8G165WG-BCWE?
The closest same-brand drop-in replacements are Samsung K4A8G165WC-BCWE (same 8Gb x16 FBGA DDR4 family, 2666 Mbps vs 3200 Mbps speed grade - pin-compatible but slower) and Samsung K4A8G165WB-BCWE (2400 Mbps grade). Cross-brand candidates from cross-reference data include Micron MT40A512M16LY-062E IT:E and SK Hynix H5AN8G6NDJR-UHC, which are JEDEC DDR4 x16 footprint-compatible in many designs. Always verify the firmware/PCB supports the slower speed grade and re-run signal-integrity qualification before substituting.
What is the difference between K4A8G165WG-BCWE and K4A8G165WC-BCWE?
The only functional difference is the speed grade: the -BCWE (W suffix) is validated for the DDR4-3200 (3200 Mbps) bin, while the -BCWE (C suffix, K4A8G165WC-BCWE) is validated for DDR4-2666. Both are 8Gb, 512M x 16, 1.2V DDR4 SDRAM in the same FBGA package from the same Samsung family, and share the same footprint. A -C grade may or may not pass full 3200 MHz timing; Samsung does not guarantee it, so do not substitute upward without qualification.
K4A8G165WG-BCWE vs Micron MT40A512M16LY-062E - which is better?
For a DDR4-3200 design, the Samsung K4A8G165WG-BCWE is the better choice because it is natively validated at 3200 Mbps, whereas the Micron MT40A512M16LY-062E is an 8Gb x16 DDR4 rated for the 2666 Mbps class (-062E = CL19-19-19 at DDR4-2666). For a 2666 Mbps design, both work and the Micron part may offer pricing or allocation advantages. Electrically both follow the JEDEC DDR4 x16 specification with similar 1.2V supplies; choose based on speed grade, availability, and your qualification budget.
Is K4A8G165WG-BCWE the same as K4A8G165WG-BCWE000?
Functionally yes: K4A8G165WG-BCWE000 is a customer/planning keyword string, while K4A8G165WG-BCWE is the code shown on the Samsung datasheet and verified product pages. The trailing 000 typically reflects a date-code or packing-code placeholder used in BOM systems. When ordering, always use the exact datasheet MPN K4A8G165WG-BCWE to avoid distributor matching errors, as icallin's July 2026 DDR4 inventory guide confirms.
Where to download the K4A8G165WG-BCWE datasheet PDF?
The K4A8G165WG-BCWE datasheet PDF is available from Alldatasheet (listed as the Samsung K4A8G165WB series document covering 8Gb B-die DDR4 SDRAM x16) and via the XAIPART datasheet link on this page. Samsung's official semiconductor support portal also hosts DDR4 component datasheets under the K4A8G16 family. The document covers pin descriptions, AC/DC timing parameters for each speed bin, and package mechanical drawings - download it before finalizing your DDR4 controller timing configuration.
Where can I find the K4A8G165WG-BCWE pinout?
The pinout is documented in the Samsung 8Gb DDR4 SDRAM x16 datasheet (K4A8G165WB/8G165WC/8G165WG family) under the FBGA ball-map section. The 96-ball FBGA follows the JEDEC DDR4 x16 ball map with address/command pins (A0-A16, BA0-1, BG0-1), 16 data pins (DQ0-DQ15) with DQS pairs, differential clock (CK/CK#), CS, RAS/CAS/WE, reset, and power/ground balls. A per-ball listing is not reproduced on this page - refer to the manufacturer datasheet ball-map table for exact ball coordinates.
Is K4A8G165WG-BCWE suitable for industrial applications?
The K4A8G165WG-BCWE is specified for 0C to +85C (commercial range), which suits office-environment industrial gateways and indoor networking equipment but is not suitable for extended-temperature (-40C to +85C or +95C) industrial designs. For those environments, select Samsung's industrial-grade variant with the -I temperature suffix (e.g., K4A8G165WG-BIWE family), which shares the same DDR4 footprint and speed bins but carries wider temperature qualification per Samsung's DDR4 component datasheet.
What are the key specifications of K4A8G165WG-BCWE engineers should know?
Key specs: 8Gbit DDR4 SDRAM, 512M x 16 organization, 3200 Mbps max data rate, 19 ns clock cycle time, 1.2V supply, 96-ball FBGA surface-mount package, 0C to +85C operating range, RoHS compliant, active lifecycle status per Samsung and DigiKey data as of 2026-09-01. Engineers should also confirm the supported CL timing bin against their memory controller and review the refresh and termination requirements in the Samsung datasheet before layout.
What is the best SK Hynix equivalent for K4A8G165WG-BCWE?
The best SK Hynix cross-brand equivalent identified in cross-reference data is the H5AN8G6NDJR-UHC, an 8Gb DDR4 SDRAM from SK Hynix with similar density and voltage. Note that the -UHC speed suffix must be checked against your design's speed bin, and although DDR4 x16 devices from all major vendors follow the JEDEC ball map, you should run the vendor's package overlay check and re-qualify signal integrity on your PCB before committing a second source. Nanya's NT6AN8T6WBJ1B1 is another 8Gb DDR4 candidate from the same cross-reference list.
Is K4A8G165WG-BCWE RoHS compliant and lead-free?
Yes, the K4A8G165WG-BCWE is RoHS compliant, as stated on the JLCPCB part page (C41368581) for this Samsung DDR4 SDRAM. Like modern Samsung FBGA memory components, it is supplied lead-free with nickel-palladium-gold ball finishes consistent with RoHS requirements. Detailed REACH, halogen-free, and conflict-minerals declarations are not included in the retrieved web data and should be requested from Samsung or your distributor as a formal compliance certificate for regulated markets.
When should I choose K4A8G165WG-BCWE over a lower-speed grade?
Choose the K4A8G165WG-BCWE (DDR4-3200) when your memory controller and PCB routing are rated for 3200 Mbps or when you want forward headroom for faster future firmware; the W speed grade guarantees 3200 Mbps timing bins. If your design runs DDR4-2400 or DDR4-2666 permanently and cost is the dominant factor, the K4A8G165WB-BCWE or K4A8G165WC-BCWE lower speed grades may be cheaper while using the identical footprint - but confirm actual savings, since commodity DRAM price gaps between bins are often small compared with dual-sourcing qualification costs.

Engineering reference data for K4A8G165WG-BCWE — comparison, design guidance, and compliance information.

Selection Guide

Choose the Samsung K4A8G165WG-BCWE when your design needs an 8Gb DDR4 x16 device at the DDR4-3200 speed bin with commercial 0C to +85C temperature range - typical cases include desktop DIMMs, embedded SoC channels, networking buffers, and FPGA capture memory. If your controller permanently runs at DDR4-2666 or DDR4-2400 and cost dominates, the pin-compatible K4A8G165WC-BCWE or K4A8G165WB-BCWE siblings use the identical footprint at potentially lower cost. For dual sourcing, the Micron MT40A512M16LY-062E IT:E, SK Hynix H5AN8G6NDJR-UHC, and Nanya NT6AN8T6WBJ1B1 are JEDEC DDR4 x16 candidates, but note their speed grades are 2666-class or lower - a 3200 Mbps design cannot drop them without performance loss, and ball-map overlay plus signal-integrity requalification is mandatory for any cross-brand substitution. For cold or outdoor environments, select the industrial -I grade instead of this commercial part.

Comparison with Alternatives

Parameter This Product K4A8G165WC-BCWE K4A8G165WB-BCWE MT40A512M16LY-062E IT H5AN8G6NDJR-UHC NT6AN8T6WBJ1B1
Package FBGA-96 (DDR4 x16) FBGA-96 - same FBGA-96 - same E: DDR4 x16 FBGA - JEDEC-compatible DDR4 x16 FBGA - JEDEC-compatible DDR4 x16 FBGA - JEDEC-compatible
Brand Samsung Electronics Samsung Electronics Samsung Electronics E: Micron Technology SK Hynix Nanya Technology
Memory Size 8 Gbit 8 Gbit 8 Gbit E: 8 Gbit 8 Gbit 8 Gbit
Organization 512M x 16 512M x 16 512M x 16 E: 512M x 16 512M x 16 512M x 16
Max Data Rate 3200 Mbps 2666 Mbps 2400 Mbps E: 2666 Mbps class (-062E) [DATA_NEEDED] [DATA_NEEDED]
Supply Voltage 1.2 V 1.2 V 1.2 V E: 1.2 V 1.2 V 1.2 V
Temperature Range 0C to +85C 0C to +85C 0C to +85C E: [DATA_NEEDED] [DATA_NEEDED] [DATA_NEEDED]
Lifecycle Status Active Active Active E: [DATA_NEEDED] [DATA_NEEDED] [DATA_NEEDED]

Key Differentiators

  • Highest speed grade in the Samsung 8Gb x16 family (vs K4A8G165WC-BCWE)
  • Samsung B-die, widely qualified platform (vs MT40A512M16LY-062E IT:E)
  • Trade-off: commercial temperature only (vs K4A8G165WG-BIWE (industrial grade))

Design Notes

DDR4-3200 fly-by topology requires precise length matching: keep CK/CA trace skew within the memory controller's specified window (typically +/-25 ps across the address/command group) and match each DQS pair to its DQ byte group to within +/-10 ps. Route on inner layers with solid reference planes, and use 34-40 ohm series termination on controller-side address/command traces. Samsung datasheet AC timing tables define setup/hold at the DRAM pin, so de-rate for your stackup's propagation delay.

Supply the K4A8G165WG-BCWE at 1.2V with the DDR4 tolerance band (approximately +/-3% per the Samsung datasheet operating range). Use a PMIC with a dedicated DDR4 rail and VTT termination tracking output (e.g., a DDR VTT sink-source LDO at VDD/2 = 0.6V). Estimated: at moderate utilization a single 8Gb x16 device draws on the order of a few hundred milliwatts dynamic; size the VTT rail for the full bus termination current of all devices sharing the bus, not just one chip.

Do not mix speed grades (WB/WC/WG) on the same DRAM bus - the controller must run at the slowest grade, and intermixed dies can cause marginal write-leveling. Verify your controller supports x16 DDR4 with the correct burst chop and bank-group configuration for 3200 Mbps operation. Remember the commercial 0C minimum: the -BCWE grade is not qualified below 0C, so cold-start in unheated enclosures requires the industrial -I variant or in-cabinet heating.

Compliance Information

RoHS
Compliant
REACH
Unknown
AEC-Q100
Lead Free
Halogen Free
Unknown
Conflict Minerals
Unknown

RoHS compliance stated on JLCPCB/LCSC product page (C41368581). REACH, halogen-free, and conflict-minerals declarations not found in retrieved data; request formal certificates from Samsung or distributor.

Data verified on: 2026-09-01 — data verified and curated by XAIPART's component engineering team

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Related Components & Terms

Samsung Semiconductor Samsung Electronics K4A8G165WG-BCWE K4A8G165WC-BCWE K4A8G165WB-BCWE MT40A512M16LY-062E IT:E H5AN8G6NDJR-UHC NT6AN8T6WBJ1B1 DDR4 SDRAM DRAM synchronous dynamic random access memory volatile memory IC B-die FBGA-96 BGA surface mount JEDEC DDR4 standard RoHS PC4-25600 512M x 16 organization data rate 3200 Mbps 1.2V supply voltage networking packet buffer memory embedded SoC main memory DigiKey
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