IS43TR16640AL-125JBLI

Memory IC Overview

The IS43TR16640AL-125JBLI is a 1 Gbit DDR3 SDRAM organized as 64 Meg x 16. It operates at a system frequency up to 933 MHz with a data rate of 1600 MT/s and timing parameters of 10-10-10. The device supports standard voltage (VDD/VDDQ = 1.5V ± 0.075V) and low voltage (1.35V +0.1/-0.067V). It features an industrial temperature range of -40°C to +95°C and utilizes a 96-ball FBGA package measuring 9mm x 13mm.

Memory IC Feature Summary

• Supports high-speed data transfer rates with system frequencies up to 933 MHz.
• Features eight internal banks for concurrent operation and an 8-bit pre-fetch architecture.
• Includes programmable CAS latency, additive latency, write latency, burst length, and burst sequence options.
• Provides dynamic on-die termination, write leveling, and asynchronous reset functionality.

Memory IC Applications

• Industrial computing systems requiring extended temperature stability
• Automotive electronic control units
• High-performance embedded memory subsystems

Memory IC Procurement Notes

Verify the specific speed bin and package configuration against the official ISSI ordering information table. Confirm that the industrial temperature rating (-40°C to +95°C) matches the design requirements. Ensure compatibility with the required voltage levels and check for any lead-free or RoHS compliance documentation relevant to the manufacturing batch.

Memory IC Selection Notes

Select this component when a 16-bit wide interface is required for 1 Gbit capacity within industrial environments. Compare the 1600 MT/s performance against lower speed grades if power consumption is a constraint. Consider the 96-ball FBGA footprint constraints during PCB layout planning relative to other density options in the series.

Memory IC Part Context

This part belongs to the IS43/46TR16640A/AL family of 1Gb DDR3 SDRAMs manufactured by Integrated Silicon Solution Inc. The 'IS43' prefix denotes commercial/industrial grade devices, while the 'AL' suffix indicates automotive-grade reliability standards. It shares architectural similarities with the 128Mx8 variants but offers a wider data bus width.

Memory IC Replacement Considerations

IS43TR16640A-125KBLI

Memory IC FAQ

What is the difference between the standard and low voltage options?

Standard voltage requires VDD and VDDQ at 1.5V ± 0.075V, whereas the low voltage option operates at 1.35V (+0.1V, -0.067V).

How does the device handle auto-precharge?

Auto-precharge is determined by the A10 pin level sampled during Read/Write commands; HIGH enables auto-precharge after the operation.