74ALVCH16600DGG:11

Overview

The Nexperia 74ALVCH16600DGG:11 is an 18-bit universal bus transceiver with 3-state outputs, housed in a TSSOP56 (SOT364-1) package. It operates within a supply voltage range of 1.65 V to 3.6 V and supports ambient temperatures from -40 °C to +85 °C. Propagation delay ranges from 1.0 ns to 5.7 ns depending on voltage conditions. The device provides ±24 mA current drive at 3.0 V and includes bus hold inputs for data retention.

Feature Summary

• Supports universal bidirectional data flow controlled by dedicated output enable, latch enable, clock enable, and clock inputs.
• Includes IOFF circuitry to disable outputs during partial power-down, preventing damaging backflow currents.
• Features active bus hold circuitry on data inputs to maintain valid logic levels without external resistors.

Applications

• High-density memory bus architectures requiring latching capabilities
• Clock-controlled data buffering systems
• Partial power-down applications requiring backflow protection

Procurement Notes

Verify the specific ordering suffix :11 against the manufacturer's latest documentation to confirm packaging details. Confirm that the TSSOP56 variant meets thermal requirements for the intended operating environment. Ensure design compatibility with the specified 1.65 V to 3.6 V supply range before finalizing procurement.

Selection Notes

Select this component when an 18-bit width is required alongside integrated latching functionality. The MULTIBYTE™ architecture simplifies routing compared to discrete solutions. Verify that the control signals align with the active LOW/OH logic states defined in the functional description table.

Part Context

This device belongs to the ALVCH logic family, utilizing Advanced Low-Voltage CMOS High-speed technology. It serves as a bridge between different voltage domains while providing storage capabilities via its internal flip-flops/latches, distinguishing it from standard non-latched transceivers.

Replacement Considerations

Direct substitutes include other 18-bit universal bus transceivers with identical pinouts and latching features. Verify package compatibility (TSSOP56) and electrical specifications such as propagation delay and drive current before substitution.

FAQ

How does the device handle partial power-down?

The device utilizes IOFF circuitry which disables the outputs when powered down, effectively preventing potentially damaging backflow current through the device.

What controls the direction of data flow?

Data flow direction is managed independently for each path using separate output enable (OEAB/OEBA), latch enable (LEAB/LEBA), clock enable (CEAB/CEBA), and clock (CPAB/CPBA) inputs.