IS42S32400D-6T

Memory IC Overview

The IS42S32400D-6T is a 128-Mbit Synchronous DRAM manufactured by ISSI. It features a 4M x 32 organization across four internal banks and operates with a maximum clock frequency of 166 MHz. The device utilizes a fully synchronous interface referenced to the positive clock edge, supporting LVTTL logic levels. Key timing parameters include a CAS latency of 3 clocks at 166 MHz and an access time from clock of 5.4 ns. It requires a 3.3V VDD and VDDQ power supply and is available in an 86-pin TSOP-II package.

Memory IC Feature Summary

• Supports high-speed data transfer using pipeline architecture with programmable burst lengths and sequences.
• Includes internal bank interleaving to hide row access and precharge times for seamless random-access operation.
• Features auto-refresh and self-refresh modes with programmable refresh periods to manage power consumption.

Memory IC Applications

• High-performance computing systems requiring fast memory access
• Graphics and display controllers utilizing 32-bit data buses
• Industrial embedded applications operating within extended temperature ranges

Memory IC Procurement Notes

Verify the specific suffix 'T' against the manufacturer's current datasheet revision to confirm package type and temperature grade. Ensure compatibility with 3.3V LVTTL interfaces and check for lead-free compliance requirements. Confirm availability of the 86-pin TSOP-II package variant as manufacturing sources may vary.

Memory IC Selection Notes

Select this component when a 128-Mbit capacity with a 32-bit data width is required. The -6 speed grade supports up to 166 MHz operation. Consider the 86-pin TSOP-II package for surface-mount assembly constraints. Verify that the system design accommodates the specified 3.3V power supply and LVTTL signal levels.

Memory IC Part Context

This part belongs to the IS42S32400D series of 128-Mbit SDRAMs from ISSI. The series offers various speed grades and packaging options, including FBGA variants. The device is designed for general-purpose high-speed memory applications, providing flexibility through programmable mode registers and multiple burst configurations.

Memory IC Replacement Considerations

Cross-reference with other ISSI IS42S32400 variants such as the -7 speed grade or different package codes like BGA. Verify electrical and timing parameter compatibility before substitution.