IDT74FST163244PAG8

Overview

The IDT74FST163244PAG8 is a 16-bit bus switch manufactured by Renesas Electronics, housed in a TSSOP-48 package. It operates within an industrial temperature range of -40°C to +85°C and requires a supply voltage between 4.5V and 5.5V. The device features four independent output enable inputs (xOE) that control the connection state between A and B ports. Key electrical parameters include a maximum on-resistance of 15Ω at VCC=Min., low input capacitance of 6pF, and high-level output current capability of 128mA. Propagation delay is typically 0.25ns, with disconnect delays up to 5.6ns.

Feature Summary

• Provides zero-delay signal paths through n-channel FETs for connecting or isolating two ports without inherent current sink or source capability.
• Supports hot insertion capability due to lack of conduction when VCC is not applied.
• Features very low power dissipation and TTL-compatible input/output levels.
• Offers high electrostatic discharge protection exceeding 2000V per MIL-STD-883.

Applications

• High-speed data routing in digital systems requiring minimal signal delay.
• Bus isolation applications where low on-resistance is critical.
• Hot-swappable interface circuits utilizing the device's power-off isolation properties.

Procurement Notes

Verify the specific ordering suffix PAG8 against the manufacturer's official documentation to confirm the TSSOP-48 green package configuration. Ensure the component meets the required industrial temperature range specifications (-40°C to +85°C) for your application environment. Cross-reference the datasheet revision history to confirm compatibility with existing design files and verify RoHS compliance status as indicated in the product specifications.

Selection Notes

Select this component when a 16-bit bidirectional switch with near-zero propagation delay is required. It serves as a functional alternative to the FCT16244T while offering lower on-resistance characteristics suitable for high-current applications. Consider the TSSOP-48 package constraints and the 5V logic level requirements when integrating into the circuit design. Evaluate the charge injection performance if switching analog signals.

Part Context

This device belongs to the FST family of bus switches from Integrated Device Technology, now part of Renesas Electronics. It is designed for high-density applications requiring efficient signal routing. The 16-bit architecture allows for compact implementation of complex bus matrices. Its pinout is compatible with similar legacy devices, facilitating upgrades in existing designs without significant layout modifications.

Replacement Considerations

The datasheet explicitly states the device is functionally similar and pin-compatible with the FCT16244T. Verify electrical parameter differences, particularly on-resistance and drive strength, before substituting. No other direct substitute part numbers are confirmed in the provided documentation.