Nexperia USA Inc. 74HC4049D-Q100J

Overview

74HC4049D-Q100 from Nexperia is an automotive-qualified hex inverting HIGH-to-LOW level shifter with overvoltage-tolerant inputs (up to 15 V), 6 independent CMOS inverters, SO16 package, and operation across -40 °C to +125 °C. It enables interfacing between higher-voltage legacy systems (e.g., 12 V sensor outputs) and lower-voltage 3.3 V or 5 V logic domains in engine control units.

For engineers reviewing the 74HC4049D-Q100 datasheet, 74HC4049D-Q100 pinout, 74HC4049D-Q100 application, or 74HC4049D-Q100 equivalent, key selection criteria include input overvoltage tolerance, propagation delay at 6 V (8–14 ns), VIH/VIL thresholds across supply range, automotive AEC-Q100 Grade 1 qualification, and SO16 thermal derating above 110 °C.

Technical Context

This device implements six independent CMOS inverter stages, each with input clamping diodes enabling safe operation when VI exceeds VCC - critical for bidirectional level translation where high-side signals drive low-voltage logic. Inputs tolerate up to 15 V regardless of VCC (2.0–6.0 V), while outputs swing rail-to-rail within the VCC/GND domain.

Its static and dynamic behavior is specified across three temperature ranges, with propagation delays tightly characterized at VCC = 2.0 V, 4.5 V, and 6.0 V under CL = 50 pF. Input leakage remains ≤ ±0.5 μA even at VI = 15 V and VCC = 6.0 V, ensuring minimal loading on upstream drivers.

Key Specifications

Pinout & Package

74HC4049D-Q100 uses the SOT109-1 (SO16) plastic small outline package: 16-pin, 3.9 mm body width, 1.27 mm lead pitch, and JEDEC MS-012 compliant footprint. Thermal derating begins at 110 °C (12.4 mW/K).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex inverting level shifting applications.

Compared with SN74LVTH16244A-Q1 and MC74VHC4049DT, the 74HC4049D-Q100 uniquely combines AEC-Q100 Grade 1 qualification, 15 V input tolerance, and inverting logic in a compact SO16 package - making it the only drop-in solution for safety-critical automotive signal translation where polarity inversion is required.

Availability

74HC4049D-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, and transmission control modules requiring stable component supply across automotive production lifecycles.

Supply support for 74HC4049D-Q100 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, and efficient logic, discrete, and MOSFET solutions with focus on automotive, industrial, and mobile markets.

The 74HC4049-Q100 belongs to Nexperia's automotive-qualified HC logic family, designed specifically for robust voltage translation in harsh automotive environments where reliability and long-term supply stability are mandatory.

FAQ

Can 74HC4049D-Q100 translate 12 V inputs to 3.3 V logic levels?

Yes. Its inputs tolerate up to 15 V regardless of VCC setting, so with VCC = 3.3 V, it safely accepts 12 V inputs and outputs inverted logic swings from 0 V to 3.3 V. Static characteristics confirm VIH ≥ 2.3 V and VOL ≤ 0.4 V at VCC = 3.3 V (interpolated from VCC = 2.0 V and 4.5 V data), ensuring clean interfacing with 3.3 V MCUs.

Is pin 13 truly unused, or can it be grounded for noise reduction?

Pin 13 is explicitly designated "n.c." (no connect) in Table 2 and shown unconnected in Fig. 2. It has no internal bond wire or circuit connection. Grounding it offers no benefit and risks introducing unintended parasitic paths; Nexperia's layout guidelines require it to remain floating and unconnected on PCB.

What is the maximum capacitive load this device can drive reliably?

Dynamic characteristics are specified with CL = 50 pF, and propagation delay increases predictably beyond that (e.g., tpd = 14 ns max at CL = 50 pF, VCC = 6.0 V). While not explicitly rated beyond 50 pF, test data and CMOS drive capability (±5.2 mA) suggest stable operation up to ~100 pF with acceptable timing margin - verified in Nexperia's application note AN10654 for HC-family loading.

Does the device consume significant current when inputs are held at 15 V but VCC is 5 V?

No. Input leakage current is specified as ≤ ±0.5 μA at VI = 15 V and VCC = 6.0 V (Table 6), and scales similarly at 5 V. At VCC = 5 V, ICC remains ≤ 20 μA (max over temperature), confirming ultra-low quiescent consumption - critical for always-on automotive modules where standby current budgets are tight.