SN74ALVCHR162601DL

Overview

The SN74ALVCHR162601DL is an 18-bit universal bus transceiver from the ALVCHR logic family. It operates on a single power supply ranging from 1.65 V to 3.6 V and utilizes CMOS technology. The device features 3-state outputs with independent output enable controls for each direction. It includes bus-hold circuitry on inputs to prevent floating states without external pull-up resistors. The component is housed in a 56-pin TSSOP package and supports surface-mount installation.

Feature Summary

• Provides bidirectional data transfer across 18 channels with independent directional control
• Integrates bus-hold cells on all inputs to eliminate the need for external pull-up resistors
• Features 3-state outputs with separate enable signals for each transmission direction

Applications

• High-speed memory subsystems requiring wide-bus interfacing
• Computer systems utilizing next-generation memory technologies
• Workstation and personal computer motherboard architectures

Procurement Notes

Verify that the specific part number matches the required voltage range and package type before ordering. Confirm RoHS compliance status as specifications may vary by production batch. Ensure the design accommodates the specified operating temperature limits. Check for any recent product stage updates or datasheet revisions to guarantee current performance characteristics are met.

Selection Notes

Select this component when designing systems requiring high-density 18-bit data paths within low-voltage constraints. The integrated bus-hold feature simplifies board layout by removing external components. Verify that the system clock frequencies remain within the device's maximum operational limits. Consider the thermal dissipation requirements associated with the TSSOP-56 package during the design phase.

Part Context

This device belongs to the Texas Instruments ALVCHR (Advanced Low-Voltage CMOS with Series Damping Resistors) family. It is designed for high-performance applications where noise immunity is critical. The series damping resistors improve signal integrity in high-speed environments. This family serves as a standard for modern digital logic interfaces in computing hardware.

Replacement Considerations

SN74ALVCH162601GR: Alternative package variant offering identical electrical functionality in a TSSOP-56 format.