MT48LC32M8A2BB-75:D

Memory IC Overview

The Micron MT48LC32M8A2BB-75:D is a 256Mb Synchronous Dynamic Random Access Memory (SDRAM) configured as 8 Meg x 8 with four internal banks. It operates at a clock frequency of 133MHz, compliant with PC133 standards. The device utilizes a single 3.3V ±0.3V power supply and features LVTTL-compatible inputs and outputs. It is housed in a 60-ball Thin Fine-Pitch Ball Grid Array (TFBGA) package measuring 8mm by 16mm.

Memory IC Feature Summary

• Fully synchronous operation with all signals registered on the positive edge of the system clock
• Internal pipelined architecture allowing column address changes every clock cycle
• Supports programmable burst lengths including 1, 2, 4, 8, or full page access
• Includes auto precharge, auto refresh, and self-refresh modes for efficient power management

Memory IC Applications

• High-performance personal computers
• Graphics workstations
• Network infrastructure equipment

Memory IC Procurement Notes

Verify that the component matches the specific 60-ball TFBGA package dimensions and pinout configuration required by the target PCB layout. Confirm the revision suffix corresponds to the intended manufacturing lot and ensure compliance with RoHS directives if applicable to the deployment region.

Memory IC Selection Notes

Select this part when a 32-bit data bus width is required within a 256Mb density constraint. The -75 speed grade provides 133MHz performance suitable for standard PC133 systems. Ensure the design supports the necessary 3.3V power rails and LVTTL logic levels for reliable signal integrity.

Memory IC Part Context

This component belongs to the Micron MT48LCxxMxA2 family of 256Mb SDR SDRAM devices. It shares architectural similarities with the MT48LC16M16A2 and MT48LC64M4A2 variants, differing primarily in organization and package options. The BB suffix specifically denotes the 60-ball TFBGA form factor used for space-constrained applications.

Memory IC Replacement Considerations

Direct substitutes include other Micron parts from the same family such as the MT48LC32M8A2P or MT48LC32M8A2TG, provided the package type change is accommodated by the hardware design.