M14D128168A-2.5BG2Y

The M14D128168A-2.5BG2Y is a JEDEC-standard DDR2 SDRAM device organized as 8M × 16 for a 128Mbit density and rated for a 400MHz clock frequency (DDR2-800). It operates from a 1.8V supply (VDD/VDDQ = 1.8V ±0.1V) and is supplied in an 84-ball FBGA (8 × 12.5 mm) surface-mount package.

Designed for commercial-grade systems, this device integrates DDR2 features such as on-chip DLL, differential clock and data strobes, on-die termination and selectable CAS latencies to support reliable, high-speed memory interfaces in space-constrained board designs.

Key Features

• Memory Organization & Density — 128Mbit capacity organized as 8M × 16 with quad-bank architecture and a 1KB page size for efficient row/column access.
• Performance — Rated for 400MHz system clock (DDR2-800) with supported burst lengths of 4 and 8; the 2.5 speed grade is specified as DDR2-800 (5-5-5).
• Voltage & Power — VDD and VDDQ operate at 1.8V ±0.1V (specified supply range 1.7V–1.9V) to match standard DDR2 system rails.
• Interface & Signal Integrity — Differential clock inputs (CLK/CLK), bi-directional differential data strobe (DQS/DQS), on-chip DLL, on-die termination (ODT) with selectable 50/75/150 Ω, and off-chip-driver (OCD) impedance adjustment for improved signal quality.
• Timing Flexibility — Supports multiple CAS latency and additive latency settings; the DDR2-800 grade uses 5-5-5 timing as specified for this part.
• Refresh & Reliability — Auto and self-refresh supported with JEDEC refresh cycles (4096 cycles/64ms at 0°C–85°C; 4096 cycles/32ms at 85°C–95°C) and high-temperature self-refresh enable.
• Package & Mounting — 84-FBGA (8 × 12.5 mm body, 0.8 mm ball pitch), surface-mount package suitable for compact board-level integration.
• Operating Range & Grade — Commercial grade with an operating temperature range of 0°C to 95°C and JEDEC qualification.
• Environmental Compliance — RoHS compliant.

Typical Applications

• JEDEC DDR2 system memory — Use as system memory in designs that require JEDEC-standard DDR2-800 operation at 1.8V.
• Compact board-level memory — Fits space-constrained PCBs and modules where an 84-FBGA footprint is required.
• Commercial embedded systems — Suitable for commercial-grade embedded designs operating within 0°C to 95°C that require DDR2 performance and standard refresh behavior.

Unique Advantages

• JEDEC-standard compliance: Ensures predictable electrical and timing behavior for DDR2 system interoperability.
• DDR2-800 performance at 1.8V: The 400MHz clock frequency (DDR2-800) with 5-5-5 timing provides a defined performance point for compatible platforms.
• Signal integrity controls: On-die termination, OCD impedance adjustment, DLL and differential DQS/CLK support help maintain signal quality at high data rates.
• Compact FBGA package: 84-ball FBGA (8 × 12.5 mm) enables dense, surface-mount board layouts and module integration.
• Refresh and thermal options: JEDEC refresh modes plus high-temperature self-refresh support extend reliable operation across the specified commercial temperature range.
• Compliance and environmental readiness: JEDEC qualification and RoHS compliance simplify integration into compliant commercial products.

Why Choose M14D128168A-2.5BG2Y?

The M14D128168A-2.5BG2Y provides a JEDEC-standard DDR2 memory option that balances compact packaging, defined DDR2-800 performance, and on-chip features for reliable high-speed interfaces. Its 84-FBGA surface-mount package and 1.8V operating rails make it suitable where board space and standard DDR2 interfaces are required.

This part is appropriate for designers specifying commercial-grade DDR2 SDRAM with explicit timing and refresh behavior, and for applications that require signal-integrity features such as ODT and DLL to support stable operation at 400MHz system clocks.

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