74AVCM162836DGG,11

Overview

The 74AVCM162836DGG,11 is a 20-bit registered driver with inverted register enable and integrated 15 Ω termination resistors in a 56-pin TSSOP package. It operates on a supply voltage range of 1.2 V to 3.6 V. Propagation delay from An to Yn ranges from 1.7 ns at 3.3 V to 2.6 ns at 1.8 V. Maximum clock frequency reaches 500 MHz at 3.3 V. The device features low power consumption, CMOS inputs/outputs tolerant up to 3.6 V, and multiple VCC/GND pins for noise reduction.

Feature Summary

• Integrated 15 Ω termination resistors minimize output overshoot and undershoot.
• Low inductance multiple VCC and GND pins reduce noise and ground bounce.
• Inverted register enable controls data flow alongside OE and CP inputs.

Applications

• SDRAM DIMM bus drivers
• PC133 memory solutions
• Clock distribution devices

Procurement Notes

Verify the exact ordering code 74AVCM162836DGG,11 against current NXP documentation. Confirm the temperature range is -40°C to +85°C and the package is TSSOP-56 (SOT364-1). Ensure compatibility with JEDEC standards no. 8-1A/5/7 before procurement.

Selection Notes

Select this component for high-speed 20-bit bus applications requiring registered outputs. The integrated termination resistors simplify PCB layout by reducing signal reflections. Verify that the system voltage falls within the 1.2 V to 3.6 V operating range and that the required propagation delay meets the timing constraints.

Part Context

This part belongs to the 74AVCM family of universal bus drivers designed for low-voltage, high-speed digital systems. It provides registered buffering with specific termination capabilities. The DGG suffix indicates the 56-lead Thin Shrink Small Outline Package variant suitable for surface mount assembly.

Replacement Considerations

No direct public substitute part numbers are confirmed in the provided datasheet. Check for updated revisions within the 74AVCM series or consult NXP for equivalent registered drivers with similar pinouts and termination features.

FAQ

What is the function of the LE input?

LE is the latch enable input which is active LOW. It controls when data from the A inputs is latched into the internal registers relative to the clock pulse.

How does the device handle power-up/down states?

To ensure a high-impedance state during power-up or power-down, the OE input should be tied to VCC through a pullup resistor to support live insertion.