IDT74LVC245APYG

Overview

The IDT74LVC245APYG is a 3.3V CMOS octal bus transceiver with 3-state outputs and 5-volt tolerant I/O, manufactured by Renesas Electronics Corporation under the IDT brand. It operates within an industrial temperature range of -40°C to +85°C. The device utilizes 0.5 micron CMOS technology and features ±24mA high output drivers. It supports VCC ranges from 2.7V to 3.6V, enabling asynchronous communication between two busses (A and B) in mixed voltage systems.

Feature Summary

• Provides bidirectional data flow control between Bus A and Bus B via Direction (DIR) and Output Enable (OE) pins.
• Features 5-volt tolerant inputs and outputs, allowing compatibility in mixed 3.3V/5V supply environments.
• Includes rail-to-rail output swing for increased noise margin and hysteresis on all inputs.

Applications

• Asynchronous communication between two busses
• Mixed voltage systems combining 5V and 3.3V logic
• Data communication and telecommunication systems

Procurement Notes

Verify that the specific suffix 'PYG' corresponds to the TSSOP package variant as defined in the ordering information table. Confirm the component meets the specified industrial temperature range requirements (-40°C to +85°C). Ensure the source documentation explicitly links the manufacturer Renesas Electronics Corporation to this specific IDT part number before procurement.

Selection Notes

Select this component when designing systems requiring an octal bus transceiver with 5V tolerance. The ±24mA drive capability makes it suitable for moderate to heavy loads. Consider the TSSOP package format if space constraints require a thin shrink outline. Verify that the operating voltage aligns with the 2.7V to 3.6V extended range or 3.3V nominal specifications.

Part Context

This device belongs to the 74LVC series of logic components, specifically designed for low-voltage applications. It serves as a bridge for data transfer in digital circuits where different voltage domains interact. The IDT branding indicates its origin from Integrated Device Technology, now part of Renesas Electronics.

Replacement Considerations

Compatible pinouts exist for standard 74LS245 and 74HC245 devices, though electrical characteristics such as drive current and voltage tolerance differ. Verify functional equivalence regarding the 5V tolerance feature and output drive strength before substituting.