IS46TR16640BL-125JBLA2-TR

Memory IC Overview

The IS46TR16640BL-125JBLA2-TR is a 1Gb DDR3L SDRAM manufactured by ISSI. It features a 64M x 16 organization and operates at a system frequency up to 800 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. It utilizes a 96-ball TWBGA package measuring 9mm x 13mm and is qualified for automotive A2 applications with an operating temperature range of -40°C to +105°C.

Memory IC Feature Summary

• Supports dual voltage operation including 1.35V DDR3L and standard 1.5V modes
• Features eight internal banks for concurrent operations
• Includes dynamic on-die termination and write leveling capabilities
• Provides programmable burst lengths and additive latency settings

Memory IC Applications

• Automotive infotainment systems
• Industrial control memory storage
• High-performance computing modules

Memory IC Procurement Notes

Verify the specific speed bin designation matches the required timing parameters for your design. Confirm that the automotive grade qualification aligns with your target application's environmental requirements. Ensure the package dimensions are compatible with your PCB layout constraints before finalizing procurement.

Memory IC Selection Notes

Select this component when a 1Gb capacity with a 16-bit data bus width is required. Choose this part for designs necessitating automotive temperature ratings and low power consumption through DDR3L support. Ensure the host controller supports the necessary DDR3 initialization sequences and mode register configurations.

Memory IC Part Context

This device belongs to the IS46TR16640 series of DDR3/DDR3L SDRAMs. It shares architectural similarities with other members in the family but is distinguished by its specific speed bin and automotive temperature rating. The 'L' suffix indicates low voltage capability, differentiating it from standard voltage variants within the same product line.

Memory IC Replacement Considerations

IS46TR16640CL-125JBLA2-TR

Memory IC FAQ

Is TDQS supported on this x16 device?

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

What is the refresh interval at high temperatures?

At temperatures between 85°C and 105°C, the refresh interval is 3.9 us (8192 cycles/32 ms).