74ALVCH16501DL,112

Overview

The Nexperia 74ALVCH16501DL,112 is an 18-bit universal bus transceiver featuring 3-state outputs and bus hold inputs. It operates within a supply voltage range of 1.2 V to 3.6 V and supports direct interface with TTL levels. The device includes D-type latches and flip-flops for transparent, latched, or clocked modes. Data flow is controlled by OEAB/OEBA, LEAB/LEBA, and CPAB/CPBA inputs. It provides ±24 mA current drive at 3.0 V and withstands ESD up to 2000 V (HBM). The component is specified for operation from -40 °C to +85 °C.

Feature Summary

• Universal bus transceiver architecture with integrated D-type latches and flip-flops supporting transparent, latched, and clocked data modes.
• Bus hold circuitry on all data inputs to maintain valid logic levels for unused or floating lines.
• IOFF circuitry enables partial power-down mode by disabling outputs to prevent damaging backflow currents.
• 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 line driving capabilities
• Partial power-down environments requiring IOFF protection

Procurement Notes

Verify the specific ordering suffix '112' against official Nexperia documentation to confirm tape-and-reel packaging details. Confirm that the DL variant corresponds to the SSOP package type as indicated in historical records, while ensuring the active datasheet specifies the currently manufactured package version. Cross-reference the manufacturer part number with the distributor catalog to ensure compatibility with required humidity sensitivity levels.

Selection Notes

Select this component for designs requiring 18-bit bidirectional data transfer with flexible control over data transparency and storage. The wide supply voltage range accommodates low-voltage applications down to 1.2 V. Ensure the design accounts for the complementary nature of the output enable signals, where OEAB is active HIGH and OEBA is active LOW. Verify that the system timing requirements align with the specified propagation delays across the operating temperature range.

Part Context

This device belongs to the ALVCH logic family, characterized by advanced low-voltage CMOS technology. It serves as a high-speed solution for interfacing between different voltage domains in digital systems. The 18-bit width allows for efficient handling of wide data buses, reducing the component count compared to using multiple smaller transceivers. It is designed for general-purpose logic IC applications within the Nexperia portfolio.

Replacement Considerations

The 74ALVCH16501DGGS is a verified substitute part number offering identical electrical specifications and functionality. Both variants are available in the TSSOP-56 package. Designers should verify pinout compatibility and thermal characteristics when transitioning between these specific package options.