74AVC4TD245BQ-Q10X

Overview

The Nexperia 74AVC4TD245BQ-Q10X is a 4-bit dual supply translating transceiver with configurable voltage translation and 3-state outputs. It features eight 1-bit input-output ports (An and Bn), four direction control inputs (DIR1–DIR4), an output enable input (OE), and dual supply pins (VCC(A) and VCC(B)). Both supplies operate between 0.8 V and 3.6 V, enabling translation between low voltage nodes including 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V. The device supports maximum data rates up to 380 Mbit/s for translations from ≥1.8 V to 3.3 V. It includes IOFF circuitry for partial power-down applications and suspend mode functionality.

Feature Summary

• Automotive product qualification in accordance with AEC-Q100 Grade 1 standard
• Configurable bidirectional level translation between any low voltage nodes from 0.8 V to 3.6 V
• IOFF circuitry provides partial power-down mode operation preventing damaging backflow current
• Suspend mode activates when either supply is at GND level, placing all ports in high-impedance state

Applications

• Automotive electronics systems requiring qualified logic components
• Mixed voltage environments translating between 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V nodes
• Partial power-down applications utilizing IOFF circuitry

Procurement Notes

Verify the component matches the specific automotive grade requirement by confirming the Q100 suffix indicates AEC-Q100 Grade 1 qualification. Ensure the DHVQFN16 package variant aligns with PCB layout constraints. Confirm that the operating temperature range of -40 °C to +125 °C meets system thermal specifications. Validate that the dual supply voltage limits are compatible with the target application's power rails before integration.

Selection Notes

Select this component when designing systems requiring bidirectional translation between multiple low-voltage logic levels within the 0.8 V to 3.6 V range. It is suitable for applications needing individual direction control per bit via DIR inputs. Consider the device if partial power-down isolation is required using IOFF features. Verify that the maximum data rate requirements for specific voltage combinations fall within the specified limits provided in the dynamic characteristics tables.

Part Context

This part belongs to the 74AVC4TD245-Q100 family of 4-bit dual supply translating transceivers. It is manufactured by Nexperia and utilizes the SOT763-1 package designation. The marking code for identification on the component body is 4TD245. It is designed as a CMOS logic device compliant with JEDEC standards for various supply voltage ranges.

Replacement Considerations

Public confirmed substitute part numbers: None identified in source material.