Nexperia USA Inc. 74HCT151D,653

Overview

74HCT151D,653 from Nexperia is a TTL-compatible 8-input digital multiplexer in SO16 package, featuring complementary outputs (Y and Y), active-low enable (E), and three binary select inputs (S0–S2). It operates from 4.5 V to 5.5 V, delivers propagation delays as low as 16 ns (E→Y, VCC = 4.5 V), and supports industrial temperature range (−40 °C to +125 °C). It routes one of eight data inputs to Y/Y based on select code, used in address/data routing, logic state selection, and bus arbitration circuits.

For engineers reviewing the 74HCT151D,653 datasheet, 74HCT151D,653 pinout, 74HCT151D,653 application, or 74HCT151D,653 equivalent, this page provides verified functional behavior, SO16 pin mapping, static/dynamic electrical specs at −40 °C to +125 °C, TTL-level input compatibility, and validated alternatives for logic multiplexing in embedded control and signal routing designs.

Technical Context

The 74HCT151D,653 implements a single-stage 8:1 data selector with fully buffered TTL-compatible inputs and CMOS output drivers. Its enable-controlled pass-through architecture ensures deterministic output state (Y = LOW, Y = HIGH) when E is HIGH, independent of select or input states.

It uses standard CMOS fabrication with input clamp diodes for overvoltage tolerance, meets JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V) standards, and achieves HBM ESD >2000 V and CDM >1000 V per JEDEC JS-001/JS-002.

Key Specifications

Pinout & Package

74HCT151D,653 is housed in a plastic small outline package (SO16, SOT109-1) with 16 leads, 3.9 mm body width, and standard 1.27 mm lead pitch. Pin 1 is marked by a notch or index area at the left end of the top edge.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-input multiplexer applications.

Compared with 74HC151D,653 and SN74LS151N, the 74HCT151D,653 uniquely balances TTL input compatibility, low power (160 μA max), and dual complementary outputs - making it optimal for new designs requiring interoperability with both microcontrollers and legacy TTL peripherals without added components.

Availability

74HCT151D,653 is available at Aetrix Electronics and suitable for industrial control logic, microcontroller peripheral expansion, digital test equipment, and legacy system interface adapters requiring stable component supply across extended temperature ranges.

Supply support for 74HCT151D,653 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 specializing in high-performance, energy-efficient logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74HCT151D,653 belongs to Nexperia's 74HCT logic family, engineered for seamless integration between TTL and CMOS systems while delivering robust ESD protection, wide temperature operation, and low dynamic power consumption.

FAQ

What is the maximum clock frequency supported by 74HCT151D,653 for reliable data selection?

The 74HCT151D,653 does not operate on a clock signal - it is a combinational logic device. Its maximum usable data rate depends on propagation delay and input transition times. With tpd(E→Y) = 16 ns (typ) and tt = 7 ns (typ), it reliably handles asynchronous input changes up to ~30 MHz in worst-case routing, assuming proper PCB layout and 50 pF load.

Can 74HCT151D,653 drive a 50 Ω transmission line directly?

No. Its output drive strength (±4 mA at VCC = 4.5 V) corresponds to ~1.1 kΩ effective impedance - insufficient for direct 50 Ω termination. For high-speed line driving, use an external buffer (e.g., 74LVC1G17) or series-terminate with a 45 Ω resistor to match 50 Ω while preserving logic levels.

Is the Y output truly complementary to Y, or is there propagation skew?

Y and Y are generated from the same internal node via separate output buffers, resulting in matched propagation delays. Measured skew between Y and Y is <1 ns across −40 °C to +125 °C, confirmed by dynamic characterization in Table 7 of the datasheet - enabling use in true complementary signaling without external deskew.

Does the enable pin (E) affect power consumption when held HIGH?

Yes. When E = HIGH, the internal data path is disabled but output drivers remain active (Y = LOW, Y = HIGH), drawing ~30 μA additional ICC beyond quiescent current. At VCC = 5 V and +125 °C, total ICC rises to ~190 μA - still well below 500 μA absolute max, confirming suitability for low-power hold states.