MT48LC64M4A2BB-6A:G

Memory IC Overview

The Micron MT48LC64M4A2BB-6A:G is a 256Mb Synchronous Dynamic Random Access Memory (SDRAM) configured as 16 Meg x 4 with four internal banks. It operates at a maximum clock frequency of 167 MHz, corresponding to a cycle time of 6ns at CAS Latency 3. 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 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 functionality for concurrent auto precharge and auto refresh modes

Memory IC Applications

• Personal computer memory systems
• Graphics display buffers
• Cache memory applications

Memory IC Procurement Notes

Verify the specific ordering suffixes against official Micron documentation to confirm package type, temperature range, and revision status. Confirm availability through authorized distributors as component lifecycle status may vary. Ensure compliance with RoHS directives if required by the target application environment.

Memory IC Selection Notes

Select this component for designs requiring high-speed synchronous DRAM with a narrow 4-bit data bus width. The 60-ball TFBGA package offers a compact footprint suitable for space-constrained PCB layouts. Ensure the system supports PC100/PC133 standards and provides a stable 3.3V power rail within the specified tolerance limits.

Memory IC Part Context

This part belongs to the Micron MT48LCxxM4/8/16A2 family of 256Mb SDR SDRAMs. The family includes variants with different data widths (x4, x8, x16) and packaging options such as TSOP II and FBGA. The 'A2' designation indicates a write recovery time of 2 clock cycles, while the '6A' speed grade defines the 167 MHz operational capability.

Memory IC Replacement Considerations

Compatible substitutes include other Micron parts from the same MT48LCxxM4A2 series with matching speed grades and package types. Cross-vendor replacements must match the 256Mb density, 4-bit width, 60-ball TFBGA form factor, and 3.3V operating voltage.