NXP Semiconductors 74ALVT162241DL,112

Overview

74ALVT162241DL,112 from Philips Semiconductors is a 2.5V/3.3V 16-bit 3-state buffer/driver with integrated 30Ω series output termination resistors, designed for high-speed bus driving in memory address, clock, and data bus applications. It features four independent output enables (1OE–4OE), ±12mA drive strength, 5V I/O tolerance, and bus-hold inputs eliminating external pull-ups.

For engineers reviewing the 74ALVT162241DL,112 datasheet, 74ALVT162241DL,112 pinout, 74ALVT162241DL,112 application, or 74ALVT162241DL,112 equivalent, this device serves as a low-noise, termination-integrated bus interface solution for 2.5V/3.3V systems interfacing to 5V buses - critical for memory array drivers, backplane transceivers, and high-density PCB layouts where signal integrity and layout simplification are prioritized.

Technical Context

The 74ALVT162241DL,112 implements BiCMOS logic with dual-voltage operation (2.3–2.7V or 3.0–3.6V VCC) while maintaining TTL-compatible input thresholds and 5V-tolerant I/O. Its architecture integrates 30Ω series resistance in both high- and low-side output paths to suppress overshoot/undershoot without external components.

Each of its four 4-bit output groups (1Y0–1Y3 through 4Y0–4Y3) is independently controlled by dedicated OE pins (1OE–4OE), enabling granular bus partitioning. Bus-hold circuitry on all 16 data inputs maintains valid logic states on floating inputs, reducing system-level noise susceptibility and eliminating discrete pull-up resistors.

Key Specifications

Pinout & Package

74ALVT162241DL,112 is housed in a 48-pin plastic SSOP (Shrink Small Outline Package), body width 7.5 mm, per drawing SOT370-1. Pin pitch is 0.5 mm, package height ≤ 2.0 mm, suitable for fine-pitch automated assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit terminated buffer applications.

Compared with SN74ALVTH162241DGGR and 74LVT162241DGG,118, the 74ALVT162241DL,112 uniquely combines bus-hold inputs, 30Ω termination, and live-insertion support in a single SSOP package - making it optimal for high-reliability, space-constrained industrial backplanes where input stability and signal integrity are co-critical.

Availability

74ALVT162241DL,112 is available at Aetrix Electronics and suitable for memory subsystems, backplane interconnects, and mixed-voltage industrial controllers requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for 74ALVT162241DL,112 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Philips Semiconductors (now NXP Semiconductors) is a global leader in high-performance logic and interface ICs, with decades of expertise in BiCMOS process technology and bus-interface design.

The 74ALVT family was engineered specifically for high-speed, low-noise 16-bit bus interfacing in telecom infrastructure and industrial computing - emphasizing termination integration, voltage flexibility, and robust ESD/latch-up protection.

FAQ

What is the maximum operating temperature range for the 74ALVT162241DL,112?

The 74ALVT162241DL,112 is specified for operation from –40°C to +85°C ambient temperature. This industrial-grade range is validated across all electrical parameters including propagation delay, output drive, and 3-state leakage, ensuring reliability in embedded control cabinets and outdoor telecom enclosures where thermal cycling occurs.

Does the 74ALVT162241DL,112 require external pull-up resistors on its input pins?

No - the 74ALVT162241DL,112 includes bus-hold circuitry on all 16 data inputs (1A0–4A3), providing ±75µA to ±200µA holding current depending on VCC and input voltage. This actively maintains the last-valid logic state on un-driven inputs, eliminating the need for external pull-up resistors in most applications.

Can the 74ALVT162241DL,112 be used in a 5V-only system?

The 74ALVT162241DL,112 is not designed for 5V VCC operation - its absolute maximum VCC is +4.6V and recommended range is 2.3–2.7V or 3.0–3.6V. However, its inputs and outputs are 5V-tolerant (VI/VO up to 5.5V), so it can safely interface with 5V buses while powered from 2.5V or 3.3V rails.

What is the purpose of the four separate OE pins on the 74ALVT162241DL,112?

The four OE pins (1OE–4OE) independently control four 4-bit output groups (1Y0–1Y3 through 4Y0–4Y3), enabling selective activation of bus segments. This allows dynamic partitioning of the 16-bit path - for example, enabling only address bits [15:12] during one cycle and data bits [3:0] during another - reducing contention and power spikes in multi-master systems.

How does the integrated 30Ω termination in the 74ALVT162241DL,112 improve signal integrity?

The 74ALVT162241DL,112 embeds 30Ω series resistance in both high- and low-side output drivers, matching typical PCB trace impedances (50–75Ω) when combined with load capacitance. This damps reflections at the source, reducing overshoot/undershoot by up to 45% and enabling clean edges at >80MHz without adding discrete resistors or increasing layout complexity.