74ALVCH16501DGGY

Overview

The Nexperia 74ALVCH16501DGGY 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 1.2 V to 3.6 V and supports data flow control via OEAB/OEBA, LEAB/LEBA, and CPAB/CPBA inputs. The device features bus hold on all data inputs and IOFF circuitry for partial power-down applications. It complies with JEDEC standards JESD8-7, JESD8-5, and JESD8-C/JESD36, and offers ESD protection exceeding 2000 V (HBM) and 1000 V (CDM).

Feature Summary

• Universal bus transceiver architecture supporting transparent, latched, or clocked modes via D-type latches and flip-flops.
• Integrated bus hold functionality on all data inputs to maintain signal integrity.
• IOFF circuitry prevents damaging backflow current during partial power-down states.
• High noise immunity with latch-up performance exceeding 100 mA per JESD78 Class II.A.

Applications

• Bus-oriented applications requiring 3-state non-inverting outputs.
• Systems utilizing 50 Ω transmission lines at elevated temperatures.
• Mixed voltage environments interfacing directly with TTL levels.

Procurement Notes

Verify the specific ordering suffix 'Y' against the official Nexperia datasheet to confirm packaging details, as standard listings may reference the base 'DGG' variant. Confirm RoHS compliance status and moisture sensitivity level prior to procurement. Ensure the component meets the required temperature range specifications for the intended operational environment.

Selection Notes

Select this component for designs requiring high-density 18-bit data transfer with independent direction control. The wide supply voltage range accommodates low-voltage logic systems. Verify that the TSSOP56 package dimensions fit the PCB layout constraints. Consider the bus hold feature if input signals require stable holding without external pull-ups or pull-downs.

Part Context

This part belongs to the 74ALVCH logic family, designed for low-voltage CMOS applications. It serves as a high-performance alternative to older logic families, offering improved speed and lower power consumption. The 74ALVCH16501 specifically addresses the need for large-width bus interfaces in portable and battery-operated devices.

Replacement Considerations

Direct substitutes include the 74ALVCH16501DGGS from Nexperia. Other manufacturers offer compatible parts such as the SN74ALVCH16501DGGR from Texas Instruments. Verify pin compatibility and electrical characteristics before substitution.