IDT72V70800TF

Overview

The IDT72V70800TFG is a non-blocking digital Time Slot Interchanger (TSI) switch manufactured by Renesas Electronics. It provides a switching capacity of 512 x 512 channels at a serial bit rate of 8.192 Mbps. The device operates on a single 3.3 V power supply with 5 V tolerant inputs and supports an operating temperature range from -40 °C to +85 °C. It accepts four serial data streams and features programmable stream and channel control, processor mode, input offset delay, and high-impedance output control.

Feature Summary

• Supports 512 x 512 channel non-blocking switching at 8.192 Mb/s
• Accepts four serial data streams with automatic ST-BUS/GCI interface identification
• Features per-channel high impedance output control and processor mode compatibility
• Includes per-stream frame delay offset programming for multi-chip switch management

Applications

• ST-BUS compatible digital switching systems
• Transporting voice channels in telecommunications networks
• Concatenated data channel transport applications
• Microprocessor-controlled large-scale switch configurations

Procurement Notes

Verify the specific suffix against official documentation, as variations such as TFG or PF8 indicate differences in packaging type like trays or reels. Confirm RoHS compliance status and moisture sensitivity levels prior to ordering. Ensure the selected package variant matches the required surface mount footprint and thermal specifications for the target application environment.

Selection Notes

Select this component for designs requiring high-density time slot interchanging within a compact 64-pin TQFP or STQFP package. The device is suitable for systems needing independent calibration of input frames and variable throughput delay. Consider the 3.3 V I/O voltage level and 5 V tolerance when interfacing with legacy logic families or mixed-voltage buses.

Part Context

This part belongs to the 72V series of digital bus switches and multiplexers designed for telecommunications infrastructure. It functions as a core building block for constructing larger switching matrices, capable of scaling from 128 x 128 to 32K x 32K inputs to multiple outputs under microprocessor control.

Replacement Considerations

The IDT72V70800TFG may be cross-referenced with other 512x512 TSI devices from Renesas or former IDT product lines. Verify pinout compatibility and register mapping before substituting with variants like the 72V70810, which offers different switching capacities.