IS42S16400F-7BLI

Memory IC Overview

The IS42S16400F-7BLI is a 64Mb Synchronous DRAM organized as 4M x 16. It features a single 3.3V power supply and LVTTL interface. The device supports clock frequencies of 200, 166, 143, and 133 MHz. Key timing parameters include CAS latency options of 2 or 3 clocks. Access times range from 5 to 6 ns depending on the speed grade and CAS latency configuration.

Memory IC Feature Summary

• Fully synchronous operation with all signals referenced to the positive clock edge
• Internal bank architecture for hiding row access and precharge cycles
• Programmable burst lengths including sequential and interleave sequences
• Supports self-refresh modes and auto-refresh operations

Memory IC Applications

• High-speed data transfer systems using pipeline architecture
• Memory systems requiring 3.3V operation
• Applications utilizing LVTTL compatible interfaces

Memory IC Procurement Notes

Verify the specific speed grade suffix matches the required clock frequency and access time specifications. Confirm the package type corresponds to the design requirements. Check for moisture sensitivity handling instructions prior to assembly. Ensure compatibility with the target system's voltage levels and refresh requirements.

Memory IC Selection Notes

Select based on the required operating temperature range and maximum clock frequency. Consider the CAS latency requirements for the specific application timing constraints. Verify the package option availability for the intended PCB layout. Review the mode register settings for burst length and sequence configurations.

Memory IC Part Context

This component belongs to the IS42S16400F series of 64Mb SDRAMs manufactured by ISSI. The series offers various speed grades and package options to suit different performance and form factor needs. It is designed for general-purpose memory applications requiring high-speed synchronous access.

Memory IC Replacement Considerations

IS42S16400N-7BLI

Memory IC FAQ

What are the available CAS latency options?

The device supports programmable CAS latencies of 2 or 3 clocks.

How does the Auto Precharge function work?

Auto Precharge initiates at the end of a READ or WRITE burst if enabled via the A10 pin, automatically precharging the accessed bank.