Samsung Semiconductor, Inc. K4A8G165WC-BCWE

Overview

K4A8G165WC-BCWE from Samsung Semiconductor, Inc. is an 8Gb DDR4 SDRAM memory device organized as 512M × 16 for high-speed embedded memory, computing, consumer electronics, networking, and industrial system applications. The device operates from a 1.2V DDR4 supply architecture and is supplied in a 96-ball FBGA package suitable for compact high-density memory PCB layouts.

As part of Samsung's K4A8G165WC DDR4 SDRAM family, K4A8G165WC-BCWE combines x16 DDR4 interface operation, 8-bank architecture with two bank groups, differential clocking, bidirectional differential data strobes, on-die termination, command/address parity, CRC support, DBI, gear-down mode, and lead-free / halogen-free FBGA packaging. For engineers reviewing the K4A8G165WC-BCWE datasheet, K4A8G165WC-BCWE pinout, K4A8G165WC-BCWE application, or K4A8G165WC-BCWE equivalent, this device is widely used in embedded computing, memory modules, networking hardware, industrial controllers, communication equipment, display systems, and DDR4 memory subsystem designs.

Technical Context

In DDR4 memory systems, K4A8G165WC-BCWE operates as a synchronous dynamic random-access memory device connected to a DDR4-compatible memory controller. Address, command, and control signals are sampled using the differential CK_t / CK_c clock pair, while read and write data transfers use source-synchronous DQ and DQS signaling.

The x16 organization provides a 16-bit data interface, making the device suitable for embedded processors, FPGAs, SoCs, memory modules, and board-level memory subsystems requiring high bandwidth with fewer DRAM components than x8 multi-device configurations. The 8Gb density supports code execution buffers, operating-system memory, frame buffers, data processing, communication buffers, and general system RAM.

K4A8G165WC-BCWE uses the DDR4 1.2V supply architecture with separate VDD, VDDQ, and VPP rails. Design implementation requires proper DDR4 routing, impedance control, fly-by command/address routing, DQS/DQ length matching, VREFCA handling, ZQ calibration, termination planning, power sequencing, and controller timing configuration.

Key Specifications

Pinout & Package

The K4A8G165WC-BCWE pinout uses a 96-ball FBGA x16 DDR4 package. The device includes DQ upper and lower byte lanes, DQS differential strobe pairs, DM/DBI pins, command and address inputs, bank address inputs, bank group input, chip select, clock enable, ODT, differential clock inputs, reset, ALERT_n, TEN, ZQ, VREFCA, VDD, VDDQ, VPP, VSS, and VSSQ pins.

For PCB implementation, DDR4 signal groups should be routed according to controller and memory-layout guidelines. DQ and DQS signals require byte-lane matching, clock and command/address routing require controlled impedance, and VDD/VDDQ/VPP rails require dense local decoupling. The ZQ pin requires the correct external calibration resistor, and VREFCA must be routed as a clean reference node.

Key Features

• 8Gb DDR4 SDRAM memory density with 512M × 16 organization.
• x16 DDR4 interface supports compact high-bandwidth memory subsystem design.
• 1.2V VDD and VDDQ operation supports DDR4 low-voltage memory architecture.
• 96-ball FBGA package supports compact embedded and module-level memory layouts.
• 8-bank architecture with two bank groups for DDR4 command scheduling.
• 8-bit prefetch and burst-based data transfer support high-speed memory access.
• Bidirectional differential DQS strobes support source-synchronous read and write timing.
• On-die termination and ZQ calibration support DDR4 signal integrity control.
• CRC and command/address parity support data and command reliability features.
• DBI and gear-down mode support system-level timing and signal-integrity optimization.
• Asynchronous reset and connectivity test mode support initialization and manufacturing test flows.
• Lead-free, halogen-free, RoHS-compliant package family.

Applications

Equivalent & Alternatives

When evaluating K4A8G165WC-BCWE equivalent devices, engineers should compare memory density, DDR generation, x16 organization, speed grade, package footprint, temperature range, VDD/VDDQ/VPP requirements, controller compatibility, timing parameters, and PCB routing constraints.

Compared with K4A8G165WC-BCTD, K4A8G165WC-BCWE is positioned for designs requiring a different speed-bin suffix while maintaining the same 8Gb x16 Samsung DDR4 C-die family relationship. K4A8G165WC-BCWE vs MT40A512M16LY selection depends on controller compatibility, memory training behavior, timing margin, package footprint, speed requirement, device ID handling, and sourcing continuity requirements.

Quality

K4A8G165WC-BCWE should be sourced as original Samsung Semiconductor memory components through traceable and controlled supply channels. Quality verification procedures may include package inspection, top-mark validation, BGA ball inspection, solderability review, device-ID verification, memory training validation, DDR4 functional testing, signal-integrity review, and incoming inspection according to embedded memory production requirements.

Because DDR4 SDRAM performance depends heavily on system-level implementation, reliability requires validated memory-controller timing, controlled-impedance routing, byte-lane matching, proper VREFCA generation, stable VDD/VDDQ/VPP supplies, ZQ calibration, termination planning, thermal review, and firmware memory-training support. Traceable sourcing supports manufacturing quality and reduces counterfeit supply-chain risk for high-density DRAM devices.

Availability

K4A8G165WC-BCWE available at Aetrix Electronics and suitable for embedded computing, networking equipment, industrial controllers, consumer electronics, communication hardware, display systems, and DDR4 memory subsystems requiring stable component supply and repeatable production support.

Supply support may include scheduled delivery planning, volume procurement support, BOM continuity assistance, traceable sourcing management, and long-term availability support for OEM manufacturers, embedded-system developers, memory-module builders, industrial-control designers, and electronics production programs.

For production deployment, confirming speed grade, 96-ball FBGA footprint, x16 organization, memory-controller compatibility, power-rail requirements, DDR4 timing margin, and sourcing continuity helps reduce procurement risk and improve manufacturing stability.

Manufacturer

Samsung Semiconductor, Inc. is a semiconductor manufacturer specializing in DRAM, NAND Flash, SSDs, MCP memory, image sensors, processors, display driver ICs, and advanced memory solutions for computing, mobile, automotive, industrial, consumer, communication, and data-center applications.

The Samsung DDR4 SDRAM portfolio focuses on high-speed memory bandwidth, low-voltage 1.2V operation, JEDEC-compatible DDR4 functionality, high-density package integration, signal-integrity features, and scalable memory architectures for embedded systems, PCs, servers, networking hardware, and industrial electronics.

FAQ

What is K4A8G165WC-BCWE used for?

K4A8G165WC-BCWE is used as DDR4 SDRAM system memory in embedded computing platforms, networking equipment, industrial controllers, consumer electronics, communication modules, display systems, and memory subsystem designs.

Where can I find the K4A8G165WC-BCWE datasheet download?

The K4A8G165WC-BCWE datasheet and Samsung K4A8G165WC family documentation include DDR4 organization, pinout, package dimensions, addressing, speed-bin timing, supply conditions, capacitance, IDD current data, and AC/DC operating requirements.

What should be considered in K4A8G165WC-BCWE PCB design?

PCB implementation should prioritize DDR4 impedance control, DQ/DQS byte-lane matching, differential clock routing, command/address timing, VREFCA stability, ZQ calibration resistor placement, dense supply decoupling, and correct VDD/VDDQ/VPP power sequencing.

Is K4A8G165WC-BCWE an x16 DDR4 SDRAM device?

Yes. K4A8G165WC-BCWE belongs to Samsung's K4A8G165WC 8Gb DDR4 SDRAM family with x16 data organization, making it suitable for 16-bit DDR4 memory-interface designs.

What are common K4A8G165WC-BCWE equivalent solutions?

Common alternatives include K4A8G165WC-BCTD, K4A8G165WB-BCWE, MT40A512M16LY, and H5AN8G6NCJR depending on speed grade, package footprint, controller support, memory-training behavior, supply requirements, and production qualification.