IDT728985J

Overview

The IDT728985J is a Time Slot Interchange (TSI) digital switch IC manufactured by Renesas Electronics. It provides a switching matrix of 256 x 256, enabling flexible signal routing within digital communication systems. The device operates at a supply voltage of 3.3V and supports high-speed data interchange capabilities required for telecommunications infrastructure.

Feature Summary

• Implements Time Slot Interchange architecture for digital signal routing
• Provides a 256 x 256 switching matrix configuration
• Designed for 3.3V operation in digital bus applications

Applications

• Telecommunications equipment
• Digital signal processing systems
• Time slot interchange networks

Procurement Notes

Verify the specific suffix 'J' against official Renesas documentation to confirm package type and temperature range. Confirm current availability status as legacy components may have limited stock or obsolescence notices. Ensure compatibility with existing system voltage levels and interface requirements before procurement.

Selection Notes

Select this component when a 256 x 256 TSI matrix is required for 3.3V digital systems. Compare pinout and package dimensions against PCB layout constraints. Verify that the switching speed and latency meet the specific timing requirements of the target application compared to alternative TSI devices.

Part Context

This part belongs to the IDT728985 family of Time Slot Interchange switches. It is related to variants such as IDT728985DBG and IDT728985JG, which share the same core 256 x 256 functionality but may differ in packaging or environmental ratings. The series is designed for high-density digital switching applications.

Replacement Considerations

Check for direct substitutes like IDT728985JG or IDT728985DBG if the 'J' suffix indicates a specific package variant. Ensure functional equivalence in matrix size and voltage before substitution.