74LVX161284MTD

Overview

The Fairchild Semiconductor 74LVX161284MTD is a low-voltage IEEE 1284 translating transceiver designed for Extended Capabilities Port (ECP) mode. It integrates eight bidirectional data buffers and eleven control/status buffers to implement a full compliant interface. The device supports Level 1 and Level 2 signaling standards for bidirectional parallel communications between personal computers and printing peripherals. Its pinout facilitates easy connection from the peripheral side to the host cable side.

Feature Summary

• Translation capability allows outputs on the cable side to interface with 5V signals
• All inputs feature hysteresis to provide noise margin
• B and Y output resistance optimized to drive external cables
• Power-up protection prevents errors when the printer is powered on but no valid signal is at the input pins

Applications

• Extended Capabilities Port (ECP) mode implementation
• Bidirectional parallel communications between personal computers and printing peripherals
• IEEE 1284 Level 1 and Level 2 signaling standard interfaces

Procurement Notes

Verify the specific package marking and manufacturer date code against the original Fairchild Semiconductor datasheet specifications. Confirm that the component meets the required voltage levels and signal integrity standards for your specific IEEE 1284 application before final integration.

Selection Notes

Select this component when a single IC solution is needed to replace two separate 74ACT1284 devices. It is suitable for designs requiring flow-through pin configuration for easy interface between peripheral and host sides, particularly where power-up protection and 5V tolerance are critical requirements.

Part Context

This part belongs to the LVXZ series of low-voltage CMOS logic devices manufactured by Fairchild Semiconductor. It serves as a specialized interface controller within the broader family of high-speed logic components designed for consumer electronics and computer peripheral applications.

Replacement Considerations

The datasheet indicates this device replaces the function of two 74ACT1284 devices. Verify compatibility with existing circuit layouts when substituting.