PI74AVC16834A

Universal Bus Functions Overview

The PI74AVC16834 is an 18-bit universal bus driver with 3-state outputs designed for 1.8V to 3.6V VCC operation. It features embedded series-resistor outputs that eliminate the need for external termination resistors in DIMM module designs. The device meets PC133 SDRAM Registered DIMM specifications and supports fast propagation delays of 2.5ns maximum at a 50pF test load. It operates within an ambient temperature range of -40°C to +85°C and is available in a 56-pin TSSOP package.

Universal Bus Functions Feature Summary

• Implements output impedance control via embedded series resistors for low-noise performance
• Designed to drive synchronous memory chips with minimal undershoot and overshoot noise
• Supports transparent mode and latching functionality controlled by OE, LE, and CLK signals

Universal Bus Functions Applications

• PC133 SDRAM Registered DIMM applications
• Driving arrays of 133 MHz synchronous memory chips
• Heavy-load applications requiring output impedance control

Universal Bus Functions Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm packaging details. The datasheet indicates that adding an X suffix designates Tape/Reel packaging. Confirm RoHS compliance status as the standard part is noted as Pb-free and Green. Ensure the required package type matches the design constraints before procurement.

Universal Bus Functions Selection Notes

Select this component when designing systems requiring high-speed data transfer with integrated output impedance control. The embedded resistor feature simplifies layout by removing the need for external series termination components. Verify that the operating voltage falls within the 1.8V to 3.6V range and that the 56-pin TSSOP package fits the board space requirements.

Universal Bus Functions Part Context

This device belongs to the AVC family of universal bus drivers manufactured by Pericom Semiconductor Corporation, which is now part of Diodes Incorporated. It serves as a high-performance interface solution for memory subsystems where signal integrity and reduced component count are critical design factors.

Universal Bus Functions Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.