74LVCH32245AEC/G:5

Overview

The 74LVCH32245AEC/G:5 is a 32-bit bus transceiver featuring non-inverting 3-state outputs in both send and receive directions. It operates with a supply voltage range of 1.65 V to 3.6 V, with functional operation down to 1.2 V. The device includes four output enable (nOE) inputs for cascading and four direction control (nDIR) inputs. Inputs accept voltages up to 5.5 V, providing compatibility with 5 V logic systems.

Feature Summary

• Features 5 V tolerant inputs and outputs for interfacing with 5 V logic devices.
• Includes bus hold on all data inputs to eliminate the need for external pull-up resistors.
• Provides high-impedance state when VCC is 0 V, ensuring isolation during power-down.
• Complies with JEDEC standards for low-voltage CMOS logic families.

Applications

• Mixed 3.3 V and 5 V system applications
• High-speed data transmission buses
• Memory interface circuits

Procurement Notes

Verify the specific ordering suffix /G:5 against current NXP documentation to confirm package details and compliance status. Confirm availability as distribution channels may list this component as obsolete or end-of-life. Ensure the design accounts for the LFBGA96 package thermal requirements and moisture sensitivity level during assembly.

Selection Notes

Select this component for designs requiring 32-bit bidirectional data transfer between different voltage domains. The integrated bus hold feature simplifies PCB layout by removing unused input pull-ups. Verify that the application environment stays within the specified -40 °C to +125 °C temperature range for optimal performance.

Part Context

This part belongs to the 74LVCH series of low-voltage CMOS logic devices manufactured by NXP Semiconductors. It is designed for high-speed applications while maintaining low power consumption. The device utilizes a plastic fine-pitch ball grid array package suitable for surface-mount technology.

Replacement Considerations

Consult official NXP documentation for verified cross-reference part numbers before substitution. Ensure any replacement maintains the same 32-bit width, 5 V tolerance, and LFBGA96 package dimensions.

FAQ

How does the device handle unused inputs?

All data inputs are equipped with a bus hold circuit, which eliminates the need for external pull-up resistors to maintain unused inputs at a defined logic level.

What is the behavior of the outputs when VCC is 0 V?

The outputs enter a high-impedance state when VCC equals 0 V, effectively isolating the buses from the device during power-off conditions.