IS43LD16640A-3BL-TR

Memory IC Overview

The IS43LD16640A-3BL-TR is a 1 Gigabit Mobile LPDDR2-S4 SDRAM manufactured by ISSI. It features an x16 data bus width and operates at a maximum clock frequency of 400 MHz, supporting a data rate up to 800 Mbps per I/O. The device utilizes a 134-ball FBGA package with a 0.65mm pitch. Power supplies include VDD2 and VDDCA/VDDQ ranging from 1.14V to 1.30V, and VDD1 from 1.70V to 1.95V. It supports industrial temperature ranges from -40°C to 85°C.

Memory IC Feature Summary

• Supports high-speed operation via a double-data-rate architecture with a four-bit prefetch design.

Memory IC Applications

• Mobile devices requiring low-power memory solutions
• Embedded systems utilizing LPDDR2 interfaces
• Industrial applications operating in extended temperature environments

Memory IC Procurement Notes

Verify the specific speed grade suffix '3' against official datasheets to confirm timing parameters. Confirm the package type matches the required PCB footprint. Ensure power supply sequencing adheres to initialization requirements. Check for RoHS compliance status before integration.

Memory IC Selection Notes

Select this component for designs requiring 1Gb capacity with an x16 interface. Verify compatibility with the target controller's LPDDR2 support. Consider thermal management for industrial temperature ranges. Evaluate power consumption profiles against system battery constraints.

Memory IC Part Context

This part belongs to the IS43/46LD16640A series of Mobile LPDDR2-S4 SDRAMs. It offers 8 internal banks for concurrent operations. The series supports various configurations including x16 and x32 widths. It integrates features like ZQ calibration and partial-array self-refresh for efficiency.

Memory IC Replacement Considerations

IS43LD16640C-25BLI-TR: Different speed grade (-25 vs -3) and potentially different packaging or revision. Verify electrical compatibility and timing specifications before substitution.