M12L64164A-7T(2C)

The M12L64164A-7T(2C) is an industrial-grade synchronous DRAM (SDRAM) organized as 4M × 16 with 4 internal banks, providing 67.11 Mbit of volatile memory in a parallel interface. It is designed for deployment in industrial and embedded systems that require deterministic, clock-synchronized memory access and extended temperature operation.

This device delivers configurable burst lengths and CAS latencies for flexible timing, while JEDEC qualification and surface-mount package options simplify integration into rugged designs that demand reliable memory buffering and high-bandwidth data transactions.

Key Features

• Memory Architecture 67.11 Mbit SDRAM organized as 4M × 16 with four-bank operation for interleaved access and higher effective bandwidth.
• Synchronous Operation & Timing Synchronous DRAM with inputs sampled on the positive clock edge; supports CAS latencies 2 and 3, programmable burst lengths (1, 2, 4, 8, full page) and burst types (sequential & interleave).
• Performance Specified clock frequency up to 143 MHz with an access time of 5 ns and a write cycle (word page) time of 14 ns to support high-throughput memory operations.
• Interface & Control Parallel DQ0–DQ15 data interface with DQM for data masking, multiplexed address pins (RA0–RA11 / CA0–CA7), BA0/BA1 bank select and standard SDRAM command signals (CLK, RAS, CAS, WE, CKE, CS).
• Refresh & Power Management Supports auto and self-refresh with a 64 ms refresh period (4K cycles) and a 15.6 µs refresh interval to maintain data integrity in typical SDRAM refresh schemes.
• Voltage & Qualification Product specification lists a 2.5 V supply; device family is JEDEC-qualified for standard SDRAM operation.
• Industrial Grade & Temperature Range Rated for industrial operation from −40 °C to 85 °C, suitable for use in temperature-challenging environments.
• Packaging & Mounting Available in surface-mount packages: 54-lead TSOP II and 54-ball VBGA options to match PCB layout and assembly needs.
• Compliance RoHS-compliant material specification for environmental and regulatory compatibility.

Typical Applications

• Industrial Control Systems Memory buffering and working storage in controllers and PLCs where extended temperature range (−40 °C to 85 °C) and JEDEC qualification are required.
• Embedded Systems On-board SDRAM for embedded processors and DSPs that require synchronous, parallel-access memory with configurable burst and latency settings.
• Networking & Communications Equipment High-throughput packet buffering and temporary data storage leveraging the device's 4-bank architecture and 143 MHz clock capability.

Unique Advantages

• Extended Temperature Rating: Operates from −40 °C to 85 °C, enabling reliable deployment in industrial and harsh-environment applications.
• Flexible Timing Configuration: Programmable CAS latency and burst length options allow designers to match memory timing to system performance and latency requirements.
• JEDEC-Qualified Design: Conformance to JEDEC SDRAM conventions simplifies integration with standard memory controllers and system designs.
• Package Choice for Assembly: Offered in 54 TSOP II and 54 VBGA surface-mount packages to support varying board-space and thermal considerations.
• Refresh & Power Features: Auto/self-refresh and standard refresh intervals reduce system overhead for data retention management.
• Regulatory Compliance: RoHS compliance supports environmental and supply-chain requirements.

Why Choose M12L64164A-7T(2C)?

The M12L64164A-7T(2C) positions itself as a robust SDRAM option for industrial and embedded designs that need synchronous, parallel memory with configurable timing and reliable operation across a wide temperature range. Its 4-bank architecture, JEDEC qualification, and surface-mount packaging options make it suitable for systems requiring predictable timing, flexible burst behavior, and compact board-level integration.

Designers targeting industrial controllers, embedded platforms, or communications equipment will find the device's combination of timing flexibility, refresh management, and temperature rating beneficial for long-term system reliability and straightforward integration into established memory-controller ecosystems.

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