Nexperia USA Inc. 74LVC16244AEV,151

Overview

74LVC16244AEV,151 from Nexperia is a 16-bit non-inverting 3-state buffer/line driver with four independent output-enable inputs (1OE–4OE), 1.2 V to 3.6 V supply operation, 5 V tolerant I/O, and Schmitt-trigger inputs for noise immunity. It supports mixed-voltage translation between 3.3 V and 5 V logic domains and features IOFF partial power-down protection. Used in high-density data bus interfacing for industrial PLC backplanes and FPGA I/O expansion.

For engineers reviewing the 74LVC16244AEV,151 datasheet, 74LVC16244AEV,151 pinout, 74LVC16244AEV,151 application, or 74LVC16244AEV,151 equivalent, key selection criteria include 5 V input tolerance, bus hold capability (LVCH variant), propagation delay ≤5.5 ns at 3.3 V, IOFF current <±20 μA at VCC = 0 V, and TSSOP48 package thermal derating above 109 °C.

Technical Context

This device implements four independent 4-bit buffer sections, each controlled by a dedicated active-low output-enable input. All 16 inputs feature Schmitt-trigger action, enabling robust operation with slow-rising signals and reducing external filtering requirements.

The IOFF circuit actively disables outputs when VCC = 0 V, blocking backflow current during partial power-down-critical for hot-swap and power-gated subsystems. The 74LVCH16244A variant adds bus hold on all data inputs; the 74LVC16244A does not.

Key Specifications

Pinout & Package

74LVC16244AEV,151 is supplied in SOT702-1: plastic very thin shrink small outline package (TSSOP) with 48 leads, body width 4.4 mm, lead pitch 0.4 mm, and exposed pad for thermal enhancement. Pin count and signal mapping match industry-standard 48-pin flow-through bus buffer layout.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74LVCH16244ADGV, the 74LVC16244AEV,151 lacks bus hold but offers identical timing, 5 V tolerance, and IOFF-making it preferable where input termination is externally managed. Versus SN74LVC16244ADGGR, it provides broader temperature qualification and guaranteed IOFF behavior across full industrial range.

Availability

74LVC16244AEV,151 is available at Aetrix Electronics and suitable for industrial PLC backplane interface, FPGA I/O expansion, and automotive body control module applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for 74LVC16244AEV,151 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 leading semiconductor manufacturer specializing in high-performance logic, analog, and MOSFET solutions for industrial, automotive, and computing markets.

The 74LVC16244A belongs to Nexperia's LVC logic family, designed for low-voltage, high-speed, mixed-signal interfacing with emphasis on voltage translation, noise immunity, and power-down safety in real-world embedded systems.

FAQ

Is 74LVC16244AEV,151 pin-compatible with 74LVC16244ADGV?

Yes-both use the SOT702-1 (48-pin TSSOP) package with identical pin assignments and electrical specifications. The 'EV' suffix denotes tape-and-reel packaging per EIA-481-D standard, while 'DGV' indicates tube packaging; functionally interchangeable in PCB layout.

Does 74LVC16244AEV,151 support bus hold functionality?

No-bus hold is exclusive to the 74LVCH16244A variant. The 74LVC16244A has standard CMOS inputs without internal weak keepers. Unused inputs must be externally terminated to VCC or GND to prevent floating states and increased power consumption.

What is the maximum clock frequency supported for data throughput?

This device is not a clocked register-it is a transparent buffer. Its usable data rate depends on propagation delay and system setup/hold timing. With tpd ≤5.5 ns at 3.3 V, it supports reliable 100+ MHz toggle rates on well-terminated 50 Ω traces, assuming ≤1 ns skew budget.

Can 74LVC16244AEV,151 operate with VCC = 1.2 V while driving 5 V-tolerant loads?

Yes-input and output voltage tolerance (0–5.5 V) is independent of VCC. At VCC = 1.2 V, outputs swing rail-to-rail (0–1.2 V), but remain electrically safe when connected to 5 V nodes due to built-in clamping diodes and IOFF protection during power loss.