74ALVCH16601DGGY

Overview

The Nexperia 74ALVCH16601DGGY 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. The device features independent A-to-B and B-to-A data flow control via dedicated output enable, latch enable, clock enable, and clock inputs. It includes bus hold circuitry on all data inputs and IOFF functionality for partial power-down applications.

Feature Summary

• Supports bidirectional data transfer between two buses using separate control signals for each direction
• Integrates bus hold circuitry on data inputs to maintain valid logic levels without external resistors
• Includes IOFF circuitry to disable outputs and prevent backflow current during partial power-down states
• Utilizes low-inductance multiple VCC and GND pins to minimize noise and ground bounce

Applications

• High-density memory modules requiring 18-bit wide data paths
• Industrial control systems interfacing microcontrollers with peripheral devices
• Consumer electronics utilizing mixed-voltage logic domains

Procurement Notes

Verify the specific ordering suffix DGGY against the manufacturer's latest documentation to confirm the exact tape-and-reel packaging configuration. Ensure that the procurement channel sources directly from authorized distributors to guarantee component authenticity and traceability. Confirm compliance with RoHS directives and check for any active product change notifications prior to finalizing orders.

Selection Notes

Select this component when designing circuits requiring simultaneous latching and transparent modes for 18-bit data buses. The MULTIBYTE architecture allows flexible pin-out configurations suitable for space-constrained PCB layouts. Verify that the system operating voltage falls within the 1.65 V to 3.6 V range and that input transition rates comply with recommended specifications to ensure signal integrity.

Part Context

This device belongs to the Nexperia ALVCH logic family, which combines advanced CMOS technology with low power consumption and high-speed performance. The 74ALVCH16601 serves as a specialized variant within the universal bus transceiver category, distinguished by its integrated latch capabilities and dual-directional control mechanisms compared to standard non-latched transceivers.

Replacement Considerations

Direct replacements include the 74ALVCH16601DGG and other variants sharing the same functional specification and TSSOP56 footprint. Verify pin compatibility and electrical characteristics before substituting.