M12L128168A-7BG2S

The M12L128168A-7BG2S is a synchronous DRAM device organized as 2M × 16 with four internal banks and a total memory capacity of 134.2 Mbit. Designed for synchronous high-data-rate memory systems, it supports JEDEC-standard 3.3 V operation and is supplied in a compact 54‑ball FBGA surface‑mount package.

Targeted at high‑bandwidth, high‑performance memory subsystems, the device provides programmable burst lengths and latencies to match a range of system timing requirements while offering industry-standard interfaces and refresh behavior.

Key Features

• Memory Organization and Capacity — 134.2 Mbit total, organized as 2M × 16 with four banks for pipelined bank operations and efficient concurrency across reads and writes.
• Synchronous DRAM Architecture — All inputs are sampled on the positive edge of the system clock; supports CAS latency of 2 and 3 and programmable burst lengths of 1, 2, 4, 8 and full page.
• Clock and Timing — Rated for operation at 143 MHz with a typical access time of 6 ns and a write cycle time (word/page) of 14 ns.
• Interface and Control — LVTTL compatible with multiplexed addresses; supports burst type sequential and interleave, burst read single write operations, and DQM masking for controlled I/O.
• Power and Voltage — JEDEC standard 3.3 V supply with allowable range 3.0 V to 3.6 V; supports auto and self refresh with a 64 ms refresh period (4K cycle).
• Package and Mounting — Supplied in a 54‑ball FBGA (surface mount) package suitable for compact board-level integration.
• System Reliability Features — Isolated data‑output power/ground pins (VDDQ / VSSQ) to provide improved noise immunity for output buffers.
• Commercial Grade — Qualified to JEDEC standards with an operating temperature range of 0 °C to 70 °C and RoHS compliance.

Typical Applications

• High‑Bandwidth Memory Subsystems — Use as system SDRAM where synchronous, burstable access and multiple banks optimize throughput for streaming or bursty traffic.
• Embedded Systems — Suitable for embedded designs requiring a JEDEC‑standard 3.3 V SDRAM with programmable latency and burst options to match controller timing.
• Video and Graphics Buffers — Useful as frame or buffer memory where predictable synchronous access and burst transfers support sustained data movement.

Unique Advantages

• Configurable Performance — Selectable CAS latencies (2 & 3) and multiple burst lengths enable tuning of latency and transfer size to system needs.
• Four‑Bank Architecture — Multiple internal banks allow overlapping operations and improved effective memory concurrency for high throughput.
• Robust I/O Isolation — Dedicated VDDQ/VSSQ for output buffers reduces noise coupling and aids signal integrity on data lines.
• JEDEC‑Standard Supply Range — 3.0 V–3.6 V range with JEDEC 3.3 V operation simplifies compatibility with standard SDRAM controllers.
• Compact Surface‑Mount Packaging — 54‑ball FBGA provides a small footprint for space‑constrained board designs.
• Standby and Refresh Support — Auto and self‑refresh with a 64 ms refresh period (4K cycle) reduce refresh management overhead in system designs.

Why Choose M12L128168A-7BG2S?

The M12L128168A-7BG2S delivers a synchronous DRAM solution that pairs JEDEC‑standard 3.3 V operation with a four‑bank architecture and programmable timing to address a range of high‑bandwidth memory needs. Its 143 MHz rating, 6 ns access time, and burst/read features allow designers to balance latency and throughput according to system requirements.

Designed for commercial applications and supplied in a compact 54‑FBGA surface‑mount package, this device is a practical choice for embedded memory subsystems, video buffering, and other applications where predictable synchronous operation, configurable burst behavior, and board‑level density are required.

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