IS46TR16640BL-125KBLA2-TR

Memory IC Overview

The IS46TR16640BL-125KBLA2-TR is a 1Gb DDR3L SDRAM manufactured by ISSI. It features a 64M x 16 organization and operates at system frequencies up to 1066 MHz (DDR3-1600). The device supports low voltage operation with VDD and VDDQ ranging from 1.283V to 1.45V, while maintaining backward compatibility with standard 1.5V supplies. Packaged in a 96-ball BGA measuring 9mm x 13mm, it is designed for automotive applications with an operating temperature range of -40°C to +105°C.

Memory IC Feature Summary

• Supports dual voltage operation including 1.35V low voltage mode and 1.5V standard mode
• Features eight internal banks for concurrent operations and 8n-bit pre-fetch architecture
• Includes programmable CAS latency, additive latency, burst length, and burst sequence
• Provides dynamic on-die termination and write leveling capabilities

Memory IC Applications

• Automotive infotainment systems
• Automotive instrument clusters
• ADAS memory buffers
• Industrial control systems

Memory IC Procurement Notes

Verify the specific speed bin suffix K against the required system clock frequency. Confirm that the 96-TWBGA package dimensions match the PCB footprint. Ensure the design supports the required initialization sequence and power ramping specifications for automotive grade components.

Memory IC Selection Notes

Select this component when a 1Gb capacity with a 16-bit data bus width is required. It is suitable for designs needing automotive qualification and extended temperature ranges. Consider the 1.35V/1.5V flexibility for power-sensitive applications compared to standard DDR3 devices.

Memory IC Part Context

This part belongs to the IS46TR16640B/L family of 1Gb DDR3 SDRAMs. It shares architectural similarities with other ISSI automotive memory products but is distinguished by its specific 64Mx16 configuration and 96-ball BGA packaging. The 'L' designation indicates support for the lower voltage range.

Memory IC Replacement Considerations

IS46TR16640CL-125JBLA2-TR

Memory IC FAQ

Is TDQS supported on this device?

No, TDQS is applicable for x8 DRAMs only. For the x16 option, the TDQS function must be disabled via mode register settings.

What is the reset requirement during power-up?

RESET# must be maintained below 0.2 x VDD for a minimum of 200 us with stable power before CKE is de-asserted.