Low Voltage 20-Bit Selectable Register/Buffer with 3.6V Tolerant Inputs and Outputs and 26 Ohm Series Resistors in the Outputs The 74VCX162839MTD is a low-voltage 20-bit universal bus driver manufactured by Fairchild Semiconductor. Key specifications include:

- **Technology**: CMOS
- **Supply Voltage Range**: 1.2V to 3.6V
- **Operating Temperature Range**: -40°C to +85°C
- **Input/Output Compatibility**: 3.3V/2.5V/1.8V
- **Output Drive Capability**: ±24mA at 3.0V
- **Propagation Delay**: 2.5ns (max) at 3.3V
- **Package**: TSSOP-56
- **Features**: 
  - 3.6V tolerant inputs and outputs
  - Power-off high-impedance inputs and outputs
  - Supports live insertion and withdrawal
  - Static Drive (IOH/IOL): ±12mA at 3.0V

This device is designed for high-speed, low-power operation in mixed-voltage systems.