NT5CB256M16CP-DII: 4Gb DDR3L SDRAM 256Mx16 – Specs, Design Guide, and Alternatives

Admin · Aug 23, 2026 · 3 min read AI-Assisted · Updated: Aug 23, 2026 · Fact-Checked
NT5CB256M16CP-DII: 4Gb DDR3L SDRAM 256Mx16 – Specs, Design Guide, and Alternatives
The NT5CB256M16CP-DII is a 4Gb DDR3L SDRAM (256Mx16) from Nanya, operating at 1.35V with DDR3L-1600 (CL11) speed. It features a 96-ball FBGA package, industrial temperature range (-40°C to +95°C), and is available with stock of 99,999 units as of 2026-08-23.
NT5CB256M16CP-DII

Quick Answers: What is the NT5CB256M16CP-DII and What Are Its Key Specs?

The NT5CB256M16CP-DII is a 4Gb DDR3L SDRAM from Nanya Technology, organized as 256M x 16. It operates at a nominal 1.35V (VDD and VDDQ) with a data rate of DDR3L-1600 (CL11). The device is housed in a 96-ball FBGA package and supports an industrial temperature range of -40°C to +95°C. As of 2026-08-23, the base price is $5.5682 at quantities of 1000+, with 99,999 units in stock at XAIPART. This makes it a strong choice for embedded, networking, and industrial applications requiring low power and high reliability.

Technical Guide: How to Select, Design In, and Use the NT5CB256M16CP-DII

When designing with the NT5CB256M16CP-DII, consider its electrical and timing specifications. The device requires a 1.35V core supply (VDD) and a 1.35V I/O supply (VDDQ), both within 1.283V to 1.45V. The data rate is DDR3L-1600 with CAS latency 11, and the minimum clock period (tCK) is 1.25 ns. The memory has 8 internal banks, supports burst lengths of 8 and 4 (with burst chop), and includes on-die termination (ODT). For reliable operation, ensure proper decoupling capacitors near the power pins and follow the PCB layout guidelines in the datasheet. The refresh interval is 7.8 µs at 85°C and 3.9 µs at 95°C, so adjust refresh timing accordingly for high-temperature operation.

Alternatives & Comparison: Drop-In Replacements for the NT5CB256M16CP-DII

For drop-in replacements, consider the NT5CB256M16CP-DIA (automotive grade, AEC-Q100) or the NT5CB256M16DP-DI (different die revision). Both share the same package and pinout. Cross-brand options include the IS43TR16512B-125KBLI from ISSI, a 4Gb DDR3L with industrial temperature range. Always verify pinout and timing parameters before substitution.

ParameterNT5CB256M16CP-DIINT5CB256M16CP-DIANT5CB256M16DP-DIIS43TR16512B-125KBLI
ManufacturerNanyaNanyaNanyaISSI
Memory TypeDDR3L SDRAMDDR3L SDRAMDDR3L SDRAMDDR3L SDRAM
Density4Gb4Gb4Gb4Gb
Organization256M x 16256M x 16256M x 16256M x 16
Supply Voltage (VDD)1.35V (1.283V-1.45V)1.35V (1.283V-1.45V)1.35V (1.283V-1.45V)[DATA_NEEDED: VDD range]
Data RateDDR3L-1600 (CL11)DDR3L-1600 (CL11)DDR3L-1600 (CL11)DDR3L-1600
Package96-ball FBGA96-ball FBGA96-ball FBGA[DATA_NEEDED: Package]
Operating Temp Range-40°C to +95°C-40°C to +95°C (automotive)-40°C to +95°CIndustrial temp range
Automotive GradeNoYes (AEC-Q100)NoNo

Note: For the IS43TR16512B-125KBLI, only the density, organization, and temperature range are provided; other specs require verification.

Industry Insight: Market Position, Lifecycle, and Supply Situation

The NT5CB256M16CP-DII is in an active lifecycle status, indicating ongoing production and availability. As of 2026-08-23, XAIPART lists 99,999 units in stock, with a base price of $5.5682 at 1000+ quantities. This suggests a stable supply situation. The DDR3L market remains relevant for embedded and industrial applications due to its low power and mature ecosystem. [DATA_NEEDED: Market share data]

Trends & Outlook: What Buyers Should Watch

Buyers should monitor the transition to DDR4 and DDR5, but DDR3L remains cost-effective for many applications. The NT5CB256M16CP-DII's industrial temperature range and low voltage make it suitable for long-life designs. Watch for potential end-of-life announcements from manufacturers, as DDR3L is gradually being phased out. [VERIFY_NEEDED: Nanya's roadmap for DDR3L]

Frequently Asked Questions

The NT5CB256M16CP-DII is a 4Gb DDR3L SDRAM organized as 256M x 16. This means it has 256 million addresses, each storing 16 bits of data, providing a total capacity of 4 gigabits. According to the Nanya datasheet, it is part of the C-die family and supports DDR3L-1600 speed grade.
The NT5CB256M16CP-DII operates at a nominal 1.35V for both VDD and VDDQ, with a tolerance of 1.283V to 1.45V. This low voltage reduces power consumption compared to standard 1.5V DDR3, making it suitable for power-sensitive applications.
As of 2026-08-23, the price for NT5CB256M16CP-DII is $9.5455 for single-unit quantities, decreasing to $5.5682 at 1000 units. Prices vary by distributor and availability; check XAIPART for current quotes.
NT5CB256M16CP-DII is available from authorized distributors such as DigiKey, Mouser, and Octopart. You can also source it from independent distributors like Win Source and YIC Electronics. Always verify authenticity and check stock availability before ordering.
Lead time for NT5CB256M16CP-DII typically ranges from 4 to 8 weeks, depending on distributor stock and order quantity. As of 2026-08-23, some distributors may have stock available for immediate shipment. Contact your preferred distributor for accurate lead time.
Stock availability for NT5CB256M16CP-DII varies by distributor. As of 2026-08-23, XAIPART lists 99,999 units in stock. Check real-time inventory on DigiKey, Mouser, or Octopart to confirm current stock levels.
The NT5CB256M16CP-DII and NT5CB256M16CP-DI are both 4Gb DDR3L SDRAMs from Nanya, but the -DII suffix indicates a different speed grade or temperature range. According to Nanya's naming convention, -DII typically denotes DDR3L-1600 with industrial temperature range, while -DI may be a different variant. Refer to the datasheet for exact specifications.
The best drop-in replacement for NT5CB256M16CP-DII is the NT5CB256M16CP-DIA, which is functionally equivalent and pin-compatible. Other options include the NT5CC256M16CP-DII (same package, different die) and cross-brand equivalents like Micron MT41K256M16TW-107. Always verify pinout and timing parameters before substitution.
Yes, the NT5CB256M16CP-DII is rated for industrial temperature range (-40C to +95C), making it suitable for automotive infotainment and telematics. However, for strict automotive grade (AEC-Q100), consider the NT5CB256M16CP-DIA or other AEC-Q100 qualified parts.
You can download the NT5CB256M16CP-DII datasheet from Nanya's official website or from aggregator sites like Alldatasheet, Octopart, and YIC Electronics. The datasheet is 164 pages and includes full specifications, timing diagrams, and package information.
The NT5CB256M16CP-DII uses a 96-ball FBGA package. The pinout includes address pins (A0-A15), bank address pins (BA0-BA2), data pins (DQ0-DQ15), and control pins (RAS#, CAS#, WE#, CS#, CKE, ODT). Refer to the datasheet for the complete pinout diagram.
Key specifications include 4Gb density, 256Mx16 organization, 1.35V supply, DDR3L-1600 speed (CL11), 8 banks, burst length 8, 96-ball FBGA package, and industrial temperature range. It also features on-die termination and auto-refresh, making it suitable for high-reliability embedded systems.
No, they are not the same. The NT5CB256M16CP-DII uses Nanya's B-die, while the NT5CC256M16CP-DII uses C-die. They may have different timing parameters and power characteristics. Check the datasheet for differences in speed bins and operating conditions.
A suitable Micron equivalent is the MT41K256M16TW-107, which is a 4Gb DDR3L SDRAM in a 96-ball FBGA package. It operates at 1.35V and supports DDR3L-1600. Verify pin compatibility and timing parameters before use.

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