74ALVCF162835DLG4

Overview

The SN74ALVCF162835 is an 18-bit universal bus driver with 3-state outputs designed for 2.3-V to 3.6-V VCC operation. It features balanced output drivers providing ±18 mA drive capability and series damping resistors to reduce switching noise in SDRAM modules. The device operates in transparent mode when the latch-enable (LE) input is high, storing data on the low-to-high transition of the clock (CLK) input when LE is low. Output enable (OE) controls data flow from A to Y.

Feature Summary

• Integrated series damping resistors within the output structure to minimize switching noise in memory applications
• Balanced output drivers delivering ±18 mA current capability for robust signal transmission
• Rail-to-rail output swing characteristics that enhance noise margins during operation

Applications

• PC133 Register DIMM systems
• SDRAM modules clocked at 133 MHz
• Universal bus driving circuits requiring controlled data latching

Procurement Notes

Verify the specific package variant required, as the DL suffix denotes SSOP while DGG and DGV denote TSSOP and TVSOP respectively. Confirm RoHS compliance status through official Texas Instruments documentation prior to ordering. Ensure design compatibility with the specified 2.3-V to 3.6-V supply voltage range and -40°C to 85°C operating temperature limits.

Selection Notes

Select this component when a higher drive strength than the standard ALVC162835 is needed but full 24 mA drive is excessive. The inclusion of internal damping resistors makes it suitable for reducing ringing in high-speed digital buses. Verify that the 18-bit width aligns with system architecture requirements before finalizing the design.

Part Context

This device belongs to the Texas Instruments Widebus family of logic ICs. It serves as a faster version of the SN74ALVC162835, offering improved performance for PC133 applications. The part integrates latch functionality directly into the bus driver, simplifying board layout by eliminating external storage components for specific data path configurations.

Replacement Considerations

SN74ALVCF162835DLG4 is functionally equivalent to SN74ALVCF162835DL.