74VCX32244GX

Buffers, Drivers, Receivers, Transceivers Overview

The onsemi 74VCX32244GX is a low-voltage CMOS octal buffer with 3-state outputs, fabricated using advanced technology for high-speed operation and low power dissipation. It contains thirty-two non-inverting buffers controlled by nibble (4-bit) independent Output Enable inputs, which can be shorted for larger data widths. The device supports VCC supply operation from 1.2V to 3.6V with I/O capability up to 3.6V. Key electrical parameters include a maximum propagation delay of 2.5 ns at 3.0V to 3.6V VCC, static drive currents of ±24 mA at 3.0V VCC, and ESD protection exceeding 2000V via the human body model.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Features 3.6V tolerant inputs and outputs suitable for mixed-voltage system interfacing.
• Supports live insertion and withdrawal operations without damaging the device.
• Utilizes patented noise and EMI reduction circuitry to minimize signal interference.
• Provides independent 3-state control for each nibble, allowing flexible bus-oriented configurations.

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address drivers
• Clock drivers
• Bus oriented transmitter/receiver applications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the 'G' suffix in the ordering code corresponds to tray packaging as specified in the datasheet notes. Confirm availability of the 'X' suffix variant if tape and reel packaging is required instead. Ensure the component meets RoHS compliance standards before procurement. Cross-reference the BGA96A package dimensions with your PCB footprint requirements to ensure mechanical compatibility during assembly.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring 32-bit wide buffering with independent nibble control. It is appropriate for low-voltage environments operating between 1.2V and 3.6V where 3.6V tolerance is necessary. Consider its propagation delay specifications relative to your system clock speeds. Evaluate the FBGA package constraints against your board space and thermal management capabilities.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the VCX series of low-voltage logic devices manufactured originally by Fairchild Semiconductor and now distributed by onsemi. It functions as a high-density buffer within the logic integrated circuit category. The device is designed to replace older voltage level translators in modern low-power digital designs requiring robust signal integrity and fast switching speeds.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for direct pin-compatible substitutes within the same VCX family or equivalent 32-bit buffers from other manufacturers. Verify that any replacement maintains the 3.6V I/O tolerance and similar propagation delay characteristics. Ensure the alternative package matches the BGA96A form factor or requires adapter solutions.

Buffers, Drivers, Receivers, Transceivers FAQ

How is the 32-bit operation controlled?

The device is nibble-controlled, meaning it has eight independent 3-state control inputs (OE1-OE8). These can be used individually for 4-bit segments or shorted together to control 8-bit, 16-bit, or full 32-bit operation simultaneously.

What is the recommended configuration for unused inputs during power-up?

To ensure a high-impedance state during power-up or power-down, the OE input should be tied to VCC through a pull-up resistor. The minimum resistor value depends on the current-sourcing capability of the driver.