74ALVCH16903DGGRG4

Overview

The SN74ALVCH16903DGGRG4 is a 3.3-V, 12-bit universal bus driver with parity checker and dual 3-state outputs. It operates within a supply voltage range of 2.3 V to 3.6 V. The device supports clock frequencies up to 125 MHz. Propagation delays are specified between 1.1 ns and 6.5 ns depending on the mode and voltage. Output drive capabilities include -24 mA high-level and 24 mA low-level currents at 3 V. It features active bus-hold circuitry and ESD protection exceeding 2000 V per MIL-STD-883. Operating temperature ranges from 0 °C to 70 °C.

Feature Summary

• Supports edge-triggered register or buffer operation modes selectable via MODE input
• Includes integrated parity checking functionality with YERR output indication
• Features active bus-hold circuitry to maintain valid logic levels on floating inputs
• Provides dual 3-state outputs for flexible bus interfacing without external pullup components

Applications

• High-speed data bus buffering in 3.3-V systems
• Edge-triggered data storage applications requiring parity verification
• Universal bus driver designs utilizing cascaded configurations
• Systems requiring robust ESD protection and latch-up performance

Procurement Notes

Verify the specific ordering suffix matches the required package type and environmental rating. Confirm RoHS compliance status and moisture sensitivity level requirements against your manufacturing process specifications. Ensure the operating temperature range aligns with your system's thermal environment constraints before finalizing procurement.

Selection Notes

Select this component when designing 3.3-V logic interfaces requiring both buffering and latching capabilities. Consider its parity checking feature if data integrity verification is necessary within the bus architecture. Evaluate the propagation delay characteristics against your maximum clock frequency requirements to ensure signal timing margins are met across the full operating voltage range.

Part Context

This device belongs to Texas Instruments' Widebus family, designed for high-density bus applications. It utilizes EPIC submicron CMOS technology to achieve enhanced performance. The DGGRG4 designation indicates a Thin Shrink Small-Outline (DGG) package variant manufactured under specific quality and environmental standards defined by the manufacturer.

Replacement Considerations

Public confirmed substitute part numbers: SN74ALVCH16903DLR, SN74ALVCH16903DL.