Nexperia USA Inc. 74LVCH16541ADGG:11

Overview

74LVCH16541ADGG:11 from Nexperia is a 16-bit dual 8-bit non-inverting 3-state buffer/line driver optimized for mixed-voltage bus interfacing. It features two independent 8-bit sections (1A/1Y and 2A/2Y), each with separate active-low output enable controls (1OEn/2OEn), operates from 1.2 V to 3.6 V, tolerates 5.5 V on inputs and outputs when disabled, and includes bus hold on all data inputs - enabling direct interface between 3.3 V logic and legacy 5 V systems in industrial control backplanes.

For engineers reviewing the 74LVCH16541ADGG:11 datasheet, 74LVCH16541ADGG:11 pinout, 74LVCH16541ADGG:11 application, or 74LVCH16541ADGG:11 equivalent, this device is selected for level-shifting, bus isolation, and hot-swap-capable I/O expansion where voltage translation, high-impedance state control, and input stability without external pull-ups are required.

Technical Context

The device implements dual independent CMOS buffer sections with true 3-state output control per section, supporting simultaneous or staggered enable/disable via four dedicated OE pins (1OE1, 1OE2, 2OE1, 2OE2). Each section drives eight outputs with rail-to-rail swing and supports hot insertion due to 5.5 V-tolerant I/O and zero-V_CC high-impedance operation.

Bus hold circuitry is integrated on all 16 data inputs (1A0–1A7, 2A0–2A7) but excluded from OE pins, ensuring stable logic states on unused or floating inputs without external components. Propagation delay is as low as 1.0 ns at V_CC = 3.0–3.6 V, with output skew limited to 1.5 ns across same-section outputs.

Key Specifications

Pinout & Package

TSSOP48 plastic thin shrink small outline package (SOT362-1), 48-pin, 0.5 mm pitch, 6.1 mm body width, with 4 ground pins and 4 V_CC pins distributed for low-noise operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC16245ADGGR and 74ALVCH162244DGG, the 74LVCH16541ADGG:11 uniquely combines non-inverting operation, dual independent 8-bit sections, bus hold, and full 5.5 V I/O tolerance - making it optimal for unidirectional, mixed-voltage, hot-swap-critical applications where signal integrity and component count reduction are primary design goals.

Availability

74LVCH16541ADGG:11 is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory address buffering, and hot-swappable I/O expansion requiring stable component supply across extended temperature ranges and mixed-voltage environments.

Supply support for 74LVCH16541ADGG:11 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 with emphasis on efficiency, reliability, and manufacturability for industrial, computing, and consumer markets.

The 74LVCH16541A belongs to Nexperia's LVCH advanced low-voltage CMOS logic family, designed specifically for robust mixed-voltage system interfacing, bus isolation, and power-efficient signal conditioning in space-constrained industrial and embedded platforms.

FAQ

Can 74LVCH16541ADGG:11 drive 5 V TTL loads directly?

Yes - its outputs are 5.5 V tolerant and deliver rail-to-rail swing up to V_CC, and its inputs accept 0–5.5 V regardless of V_CC. When powered at 3.3 V, it meets TTL input thresholds (V_IH ≥ 2.0 V, V_IL ≤ 0.8 V) and can source/sink 24 mA, satisfying standard TTL fan-out requirements without level shifters.

What happens to outputs when V_CC = 0 V?

Outputs enter high-impedance state automatically - no external pull-ups needed. This is guaranteed by design and verified per JEDEC JESD78, enabling safe hot-plug operation into powered 5 V buses without risk of backfeeding or latch-up.

How does bus hold behave when an input exceeds V_CC?

The bus hold circuit disables automatically when input voltage exceeds V_CC, allowing up to 5.5 V to be applied safely. This behavior is documented in Section 9 footnote [2] and ensures compatibility with 5 V signals while preserving bus hold functionality within the V_CC range.

Is thermal derating required above 109 °C?

Yes - total power dissipation (P_tot) derates linearly at 12.2 mW/K above 109 °C for the TSSOP48 package. At 125 °C ambient, maximum allowable P_tot drops to ~290 mW, which remains sufficient for typical logic-level drive conditions (≤ 10 mA per output).