Nexperia USA Inc. 74HC4514D,653

Overview

74HC4514D,653 from Nexperia is a 4-to-16 line decoder/demultiplexer with input latches, implementing binary-to-1-of-16 decoding and latch-controlled output stability. It features four address inputs (A0–A3), latch enable (LE), active-low enable (E), and 16 active-high outputs (Q0–Q15). Operates from 2.0 V to 6.0 V supply, supports −40 °C to +125 °C ambient range, and delivers 46 ns typical propagation delay at 4.5 V - used in address decoding for memory-mapped peripherals and hexadecimal-to-BCD conversion circuits.

For engineers reviewing the 74HC4514D,653 datasheet, 74HC4514D,653 pinout, 74HC4514D,653 application, or 74HC4514D,653 equivalent, key selection criteria include latch-enabled output hold timing, TTL-compatible variants (74HCT4514), TSSOP24 package thermal performance, and static output drive capability of ±4.0 mA at 4.5 V.

Technical Context

This device integrates four independent D-type latches followed by a 4-input binary decoder, enabling asynchronous address capture and synchronous output selection. The latch enable (LE) controls data transparency vs. storage, while E independently gates all 16 outputs without affecting latch state.

Input clamping diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors. The 74HC variant uses CMOS-level inputs (VIH = 3.15 V min at 4.5 V), whereas the 74HCT variant supports TTL-level compatibility (VIH = 2.0 V min at 4.5 V).

Key Specifications

Pinout & Package

TSSOP24 package (SOT355-1), 4.4 mm body width, 0.65 mm lead pitch, 1.1 mm max height - optimized for high-density PCB layouts with improved thermal dissipation over SOIC.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 4-to-16 decoder/demultiplexer applications.

Compared with 74HC4514D,653, the 74HCT4514PW,118 offers identical functionality with enhanced input compatibility, while SN74HC154DR trades latch capability for lower cost and wider distributor availability - but requires redesign of timing-critical address capture logic.

Availability

74HC4514D,653 is available at Aetrix Electronics and suitable for memory address decoding, hexadecimal-to-BCD conversion, and digital multiplexing requiring stable component supply across industrial temperature ranges and high-volume production cycles.

Supply support for 74HC4514D,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 delivering high-performance, reliable logic, analog, and discrete components for automotive, industrial, and consumer applications.

The 74HC4514 belongs to Nexperia's HC logic family, designed for low-power, high-noise-immunity digital interfacing in space-constrained industrial control and instrumentation systems.

FAQ

What is the maximum clock/data rate supported by the 74HC4514D,653?

The device does not operate on a clock signal; its speed is governed by propagation delay. At VCC = 4.5 V and CL = 50 pF, An→Qn delay is 46 ns typical, supporting address update rates up to ~10 MHz in demultiplexer mode. For latch-controlled applications, LE pulse width must exceed 20 ns minimum to ensure reliable data capture.

Can the 74HC4514D,653 drive LEDs directly?

Yes - each output delivers up to 4.0 mA sink/source at VOH ≥ 3.98 V and VOL ≤ 0.26 V (VCC = 4.5 V), sufficient to illuminate low-current indicator LEDs (e.g., 2 mA @ 1.8 V forward voltage) with a 1 kΩ series resistor. Do not exceed 25 mA total package output current.

How does the latch enable (LE) interact with the enable input (E)?

LE controls data capture into internal latches: when HIGH, outputs follow A0–A3; when LOW, outputs freeze at last captured address. E operates independently - it gates all 16 outputs LOW when HIGH, and enables the selected output (per latch contents) when LOW. Latch state remains unchanged regardless of E level.

Is the 74HC4514D,653 suitable for automotive applications?

No - this part is not AEC-Q100 qualified and lacks automotive-grade screening, temperature validation beyond +125 °C, or failure-in-time (FIT) data. Nexperia explicitly states non-automotive qualification in its legal disclaimers; use only in industrial, commercial, or consumer equipment.