M16U4G8512A-2666(2Z)

The M16U4G8512A-2666(2Z) is a DDR4 SDRAM device organized as 512M × 8 for a total memory capacity of 4.295 Gbit. It implements standard DDR4 architecture with a parallel memory interface and JEDEC qualification, targeted for industrial-grade applications requiring JEDEC-compliant DDR4 memory.

Designed for high-speed system memory use, the device supports a 1.333 GHz clock (DDR4-2666 data rate), multiple CAS and write-latency options, and a compact 78-ball BGA surface-mount package suitable for dense board-level integration.

Key Features

• Memory Organization & Density — 4.295 Gbit capacity organized as 512M × 8, providing page sizes and addressing consistent with DDR4 architecture.
• DDR4 Core Architecture — 16 internal banks with 4 bank groups, 8-bit prefetch and DLL alignment of DQ/DQS to CK for DDR4 timing and throughput.
• Performance & Timings — Clock frequency 1.333 GHz (DDR4-2666), access time 13.75 ns, write cycle time (word page) 15 ns; supports CAS Latency (CL) options including 9, 11–16, 18–24 and multiple CWL values.
• Flexible Burst & Latency Modes — Burst Length (BL) 8 and 4 with Burst Chop (BC); Additive Latency (AL) 0, CL-1, CL-2 supported for controller timing flexibility.
• Power and Calibration — JEDEC-standard VDD = VDDQ = 1.2V ±5% and VPP = 2.375V–2.75V; ZQ calibration for output driver impedance and adjustable internal VREFDQ.
• Signal Integrity & Reliability — Differential CK inputs, bi-directional differential DQS, on-die termination (nominal/park/dynamic ODT), TDQS support (x8), command/address parity and CRC for DQ error detection during high-speed operation.
• Low-Power & Refresh Features — Fine granularity refresh, Temperature Controlled Refresh (TCR), Low Power Auto Self Refresh (LP ASR), self-refresh abort and programmable refresh timing for temperature-dependent refresh cycles.
• Advanced Operational Modes — Write leveling, programmable preamble, Gear Down mode (1/2 and 1/4 rate), PPR/sPPR and per-DRAM addressability (PDA) for individual mode register settings.
• Package & Mounting — 78 Ball BGA package, surface mount, compact footprint for space-constrained board designs.
• Industrial Temperature Range & Qualification — Grade: Industrial; operating temperature range −40°C to 95°C and JEDEC JESD‑79‑4 compliance noted in product documentation.
• Standards Compliance — JEDEC-qualified DDR4 SDRAM implementation and feature set consistent with DDR4 device requirements.

Typical Applications

• Industrial Control Systems — Industrial-grade temperature range and JEDEC qualification make this device suitable for embedded memory in industrial controllers and automation equipment.
• Networking & Telecom Equipment — High clock frequency and extensive timing options support memory buffering and packet-processing tasks in networking line cards and telecom modules.
• Embedded Computing — Compact 78-ball BGA allows integration into space-constrained embedded platforms that require standard DDR4 memory capacity and timing flexibility.

Unique Advantages

• JEDEC Compliance — Conforms to JEDEC DDR4 specifications, simplifying integration with JEDEC‑compliant memory controllers.
• Industrial Temperature Capability — Specified operating range from −40°C to 95°C for deployment in demanding ambient conditions.
• Wide Timing Flexibility — Broad CAS and CWL options plus AL settings enable tuning for a variety of performance and timing budgets.
• Robust Signal & Power Management — Differential clocks, DQS strobe support, ODT, ZQ calibration and adjustable VREFDQ help maintain signal integrity at high data rates.
• Space-Efficient Packaging — 78 Ball BGA surface-mount package supports compact system designs while delivering full DDR4 functionality.

Why Choose M16U4G8512A-2666(2Z)?

The M16U4G8512A-2666(2Z) positions itself as a JEDEC‑compliant DDR4 memory device that balances high-speed operation (DDR4-2666 / 1.333 GHz), flexible timing options, and industrial-grade temperature capability. Its 4.295 Gbit density in a 78-ball BGA package provides designers with a compact, standards-driven memory option for embedded, networking, and industrial systems.

With on-die termination, ZQ calibration, multiple low-power refresh modes and extensive timing programmability, this DDR4 component supports robust signal integrity and adaptable system tuning for long-term reliability and integration across JEDEC-based memory subsystems.

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