Nexperia USA Inc. 74LVCH16541ADL,118

Overview

74LVCH16541ADL,118 from Nexperia is a 16-bit dual 8-bit non-inverting 3-state buffer/line driver in TSSOP48 package, operating from 1.2 V to 3.6 V supply, with 5 V-tolerant inputs/outputs, bus hold on all data inputs, and -40 °C to +125 °C temperature rating-used for level translation and bus isolation in mixed-voltage memory and peripheral interfaces.

For engineers reviewing the 74LVCH16541ADL,118 datasheet, 74LVCH16541ADL,118 pinout, 74LVCH16541ADL,118 application, or 74LVCH16541ADL,118 equivalent, key selection criteria include 3-state enable timing (tdis ≤ 7.0 ns), propagation delay (tpd ≤ 5.5 ns at 3.3 V), bus hold current (±75 μA at 3.0 V), 5.5 V-tolerant outputs when disabled, and JEDEC-compliant voltage ranges (JESD8-7A/5A/C).

Technical Context

This device implements two independent 8-bit buffered paths (Group 1: A0–A7 → Y0–Y7; Group 2: A0–A7 → Y0–Y7), each controlled by two active-low output enable inputs (1OE1/1OE2 and 2OE1/2OE2) enabling fine-grained 3-state control per group. The bus hold circuit sustains logic states on unused data inputs without external pull-ups.

It supports mixed 3.3 V/5 V system interfacing via 5 V-tolerant I/Os and operates down to 1.2 V core supply-enabling compatibility with low-voltage microcontrollers while driving legacy 5 V buses. All static and dynamic parameters are specified across -40 °C to +125 °C, with derated power dissipation above 109 °C.

Key Specifications

Pinout & Package

TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch, exposed pad not present-designed for high-density PCB layouts with low inductance via multiple VCC/GND pins (4 × VCC, 8 × GND).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit 3-state buffer applications.

Compared with SN74LVC16244ADGGR and 74ALVC164245PW,118, the 74LVCH16541ADL,118 uniquely combines 5.5 V-tolerant I/Os, per-group 3-state enables, and integrated bus hold-making it optimal for mixed-voltage, high-reliability unidirectional buffering where input state retention and hot-swap safety are critical.

Availability

74LVCH16541ADL,118 is available at Aetrix Electronics and suitable for industrial control systems, automotive body electronics modules, and telecom infrastructure equipment requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for 74LVCH16541ADL,118 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

Nexperia is a global semiconductor expert delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in consumer, industrial, and automotive applications.

The 74LVCH series targets low-voltage, high-speed logic interfacing with emphasis on mixed-supply compatibility, ESD robustness, and extended temperature operation-designed specifically for next-generation embedded systems demanding voltage scalability and noise immunity.

FAQ

Can 74LVCH16541ADL,118 drive 5 V TTL loads directly?

Yes. Its outputs are 5 V-tolerant and can source/sink up to 24 mA at 3.0 V VCC, meeting TTL input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V). When VCC = 3.3 V, VOH ≥ 2.2 V and VOL ≤ 0.55 V under 24 mA load-fully compatible with standard 5 V TTL inputs without external level shifting.

What happens to outputs when VCC = 0 V?

Outputs enter high-impedance state with power-off leakage current ≤ ±20 μA, and inputs tolerate up to 5.5 V. This allows safe "live insertion" into powered-backplane systems: the device neither loads nor back-drives the bus, and bus hold remains inactive (disabled when VI > VCC).

How does bus hold function interact with 5 V inputs?

The bus hold circuit automatically disables when input voltage exceeds VCC, allowing 5.5 V signals to pass through without damage or contention. At VCC = 3.3 V, bus hold activates only for inputs between ~0.8 V and ~2.0 V-retaining logic state while permitting full 5 V logic swing on enabled inputs.

Is pin 1 orientation marked on the TSSOP48 package?

Yes. Pin 1 is identified by a small circular mark or notch at the top-left corner of the package body (viewed from top, with leads pointing downward). The marking aligns with JEDEC-standard SOT362-1 mechanical drawing-critical for automated placement and manual inspection to prevent rotation errors.