IS42S32400F-7BLI-TR

Memory IC Overview

The IS42S32400F-7BLI-TR is a 128Mb Synchronous DRAM manufactured by ISSI. It features a 4M x 32 organization and operates at a clock frequency of 143 MHz with an access time of 5.4 ns. The device utilizes a single 3.3V power supply and LVTTL interface. It is housed in a 90-ball TF-BGA package measuring 8mm x 13mm.

Memory IC Feature Summary

• Supports internal bank interleaving to hide row access and precharge times for seamless high-speed random-access operations.
• Features programmable burst lengths including sequential and interleave sequences, along with CAS latency options of 2 or 3 clocks.
• Includes auto-refresh and self-refresh modes to maintain data integrity while reducing power consumption during idle states.

Memory IC Applications

• Wireless access points and base stations
• Network routers and storage systems
• Industrial control equipment

Memory IC Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when sourcing from distributors. Confirm that the component meets RoHS3 compliance standards as specified in the datasheet. Ensure the selected temperature grade matches the operational environment requirements before finalizing procurement orders.

Memory IC Selection Notes

Select this component for designs requiring a 32-bit wide memory interface with synchronous operation. Verify compatibility with LVTTL logic levels for address and command inputs. Consider the 90-ball BGA footprint constraints and thermal dissipation characteristics during the PCB layout phase.

Memory IC Part Context

This part belongs to the IS42S32400F series of 128Mb SDRAM devices. It shares architectural similarities with other members of the family but differs in speed grades and packaging options. The -7BLI-TR designation specifies the 143MHz speed bin, BGA package, and reel packaging format.

Memory IC Replacement Considerations

IS42S32400J-7BLI is listed as a manufacturer recommended substitute.

Memory IC FAQ

How does the Auto Precharge function operate?

Auto Precharge initiates the precharge process at the earliest valid stage within a burst sequence. This allows individual-bank precharging without requiring an explicit command, provided A10 is set HIGH during the READ or WRITE command.

What is the refresh requirement for this device?

The device requires 4096 refresh cycles every 64ms for Commercial and Industrial grades, and every 16ms for Automotive Grade A2.