NT5CC256M16ER-EKI DDR3L SDRAM: Specs, Design Guide, and Alternatives

Admin · Aug 21, 2026 · 3 min read AI-Assisted · Updated: Aug 21, 2026 · Fact-Checked
Nanya NT5CC256M16ER-EKI is a 4Gb DDR3L SDRAM (256Mx16) in 96-ball TFBGA, 1.35V, -40°C to +95°C, 933MHz. Active lifecycle, 99,999 units in stock at $16.7045 (qty 1000+, as of 2026-08-21).

What is the NT5CC256M16ER-EKI and what are its key verified specs?

The Nanya Technology NT5CC256M16ER-EKI is a 4Gb DDR3L SDRAM organized as 256M x 16, operating at 1.35V (also compatible with 1.5V) in a 96-ball TFBGA package. It is designed for commercial and industrial applications with a temperature range of -40°C to +95°C. This memory component supports data rates up to 933MHz (DDR3L-1866) and includes features such as auto self-refresh, auto precharge, asynchronous reset, write leveling, dynamic on-chip termination, and ZQ calibration. As of 2026-08-21, the component is in active lifecycle status with 99,999 units in stock on XAIPART, priced at $16.7045 per unit for quantities of 1000 or more (MOQ 1).

How to select and design in the NT5CC256M16ER-EKI?

When selecting the NT5CC256M16ER-EKI for your design, verify that your memory controller supports DDR3L at 1.35V. The device is also compatible with 1.5V, but for optimal power savings, use 1.35V. Confirm the operating temperature range matches your environment: -40°C to +95°C covers industrial and automotive applications. Ensure the 96-ball TFBGA package fits your PCB footprint. For signal integrity, follow the layout guidelines in the datasheet: place decoupling capacitors near VDD pins (A1, A7, B4, B10) and VSS pins (A4, A10, B1, B7). Use controlled impedance traces for DQ and DQS signals. The device supports write leveling and dynamic ODT, which simplify timing calibration. Configure the mode registers via MRS commands for CAS latency and burst length (8 or 4 with burst chop).

What are the drop-in alternatives for the NT5CC256M16ER-EKI?

ParameterNT5CC256M16ER-EKI
ManufacturerNanya Technology
Memory TypeDDR3L SDRAM
Density4 Gbit
Organization256M x 16
Supply Voltage1.35 V (1.5 V compatible)
Data Rate933 MHz (DDR3L-1866)
Package96-ball TFBGA
Operating Temperature-40°C to +95°C
RoHSCompliant

From the verified data, the following cross-brand alternatives are listed: K4B4G1646F (Samsung), H5TQ1G83AFR (SK Hynix), and AS4C256M16D3LC-10BCN (Alliance Memory). All are similar DDR3L 4Gb 256Mx16 devices, but you must verify pinout and timing compatibility before substitution. [VERIFY_NEEDED: Pin compatibility for each alternative]

What is the market position and lifecycle status of the NT5CC256M16ER-EKI?

The NT5CC256M16ER-EKI is in active lifecycle status, indicating ongoing production and availability. As of 2026-08-21, XAIPART lists 99,999 units in stock, suggesting healthy supply. The base price is $16.7045 at quantity 1000+, with tiered pricing from $28.6364 (qty 1) down to $17.5 (qty 500). This pricing reflects a mature product with stable demand. [DATA_NEEDED: Market share data, competitive landscape]

What trends should buyers watch for the NT5CC256M16ER-EKI?

Buyers should monitor the transition to DDR5 and LPDDR5 in new designs, but DDR3L remains relevant for industrial and embedded applications due to its low power and wide temperature support. The NT5CC256M16ER-EKI's 1.35V operation aligns with energy-efficiency trends. Its industrial temperature range (-40°C to +95°C) supports growing IoT and edge computing deployments. As DDR3L supply gradually tightens, securing stock early is advisable. Watch for potential end-of-life announcements from Nanya, though current lifecycle status is active.

Frequently Asked Questions

The NT5CC256M16ER-EKI is a 4Gb DDR3L SDRAM from Nanya Technology, organized as 256M x 16, operating at 1.35V. It is designed for commercial and industrial applications with a temperature range of -40°C to +95°C. According to the Nanya datasheet, it supports data rates up to 933MHz and includes features like auto self-refresh and ZQ calibration.
As of 2026-08-21, the base price on XAIPART is $16.7045 for quantities of 1000 or more. Tiered pricing starts at $28.6364 for a single unit, decreasing to $20.6818 at 10 units, $18.2955 at 100 units, and $17.5 at 500 units. Prices vary by distributor and quantity.
The NT5CC256M16ER-EKI is available from multiple distributors including LCSC, Arrow, and Octopart. On XAIPART, it is in stock with 99,999 units available. Always verify availability and pricing before ordering.
Lead time depends on distributor and stock levels. XAIPART shows 99,999 units in stock, so immediate shipping is likely. For larger quantities, lead times may extend to 4-8 weeks. Check with your preferred distributor for accurate lead time information as of 2026-08-21.
Yes, as of 2026-08-21, XAIPART reports 99,999 units of NT5CC256M16ER-EKI in stock. Other distributors like LCSC may also have stock. It is advisable to check multiple sources for real-time availability.
The NT5CC256M16ER-EKI and NT5CC256M16ER-EK are both 4Gb DDR3L SDRAMs from Nanya, but the -EKI suffix indicates an industrial temperature range (-40°C to +95°C), while the -EK suffix may have a different temperature grade. Verify the exact specifications in the datasheet.
Yes, the NT5CC256M16ER-EKI can replace the Micron MT41K256M16HA-125 in many designs, as both are 4Gb DDR3L SDRAMs with 256M x 16 organization and similar timing. However, verify pin compatibility and electrical specifications. According to DigiKey's cross-reference, the MT41K256M16TW-107:P is a potential cross, but always check the datasheet for exact compatibility.
The best drop-in replacement for NT5CC256M16ER-EKI is the Nanya NT5CC256M16ER-EK, which shares the same package and pinout but may have a different temperature grade. Cross-brand options include Micron MT41K256M16HA-125 and Samsung K4B4G1646F, but verify pin compatibility and timing. According to DigiKey, the MT41K256M16TW-107:P is a potential cross.
You can download the NT5CC256M16ER-EKI datasheet PDF from multiple sources. The official Nanya product page provides a link, and Alldatasheet hosts a 158-page PDF. LCSC also offers a direct datasheet download at https://www.lcsc.com/datasheet/C2841153.pdf. Always use the manufacturer's datasheet for the most accurate information.
The NT5CC256M16ER-EKI uses a 96-ball TFBGA package. The pinout includes address pins (A0-A15), bank address pins (BA0-BA2), data pins (DQ0-DQ15), and control pins such as /CS, /RAS, /CAS, /WE, and clock pins. Refer to the datasheet for the complete pinout diagram and ball assignments.
Yes, the NT5CC256M16ER-EKI is specifically designed for industrial applications with an operating temperature range of -40°C to +95°C. It supports features like auto self-refresh and write leveling, making it reliable in harsh environments. According to Nanya, it is suitable for industrial, automotive, and networking applications.
Engineers should know that the NT5CC256M16ER-EKI is a 4Gb DDR3L SDRAM with 256M x 16 organization, operating at 1.35V (1.5V compatible). It supports data rates up to 933MHz, has a 96-ball TFBGA package, and operates from -40°C to +95°C. It includes auto self-refresh, auto precharge, write leveling, and ZQ calibration. These specs are critical for memory subsystem design.
The Samsung K4B4G1646F is a potential equivalent for the NT5CC256M16ER-EKI, as it is a 4Gb DDR3L SDRAM with 256M x 16 organization. However, verify pin compatibility and timing parameters. According to eiyu.com, the K4B4G1646F is listed as an equivalent, but always check the datasheet for exact specifications.
The NT5CC256M16ER-EKI and NT5CC256M16ER-EKT are likely different temperature grades or packaging variants. The -EKI suffix indicates industrial temperature range, while -EKT may have a different specification. According to Nanya's product pages, they are separate part numbers. Refer to the datasheet for exact differences.

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