Nexperia USA Inc. 74HC4050DB,118

Overview

74HC4050DB,118 from Nexperia is a hex non-inverting HIGH-to-LOW level shifter IC with overvoltage-tolerant inputs (up to 15 V), operating across 2.0–6.0 V supply, delivering 6 independent buffered outputs, and rated for -40 °C to +125 °C ambient. It enables interface between higher-voltage legacy logic (e.g., 5 V or 12 V) and modern 3.3 V or 2.5 V CMOS systems in industrial I/O expansion modules.

For engineers reviewing the 74HC4050DB,118 datasheet, 74HC4050DB,118 pinout, 74HC4050DB,118 application, or 74HC4050DB,118 equivalent, key selection criteria include input overvoltage tolerance, propagation delay at 4.5 V (9–17 ns), output drive capability (±5.2 mA), SO16 package compatibility, and guaranteed operation up to +125 °C in harsh environments.

Technical Context

The 74HC4050DB,118 implements six independent CMOS buffer stages, each accepting input voltages up to 15 V while powered from a lower VCC (2.0–6.0 V), enabling true unidirectional HIGH-to-LOW voltage translation without external components. Its input protection includes polysilicon clamping resistors and diodes to GND and VCC, supporting ±20 mA clamping current per input.

Each buffer exhibits rail-to-rail output swing (VOH ≥ 4.4 V at VCC = 4.5 V, IO = −4.0 mA; VOL ≤ 0.26 V at same conditions), with static input thresholds VIH ≥ 3.15 V and VIL ≤ 1.35 V at VCC = 4.5 V, ensuring robust noise immunity (>1.1 V noise margin) and reliable TTL/CMOS compatibility.

Key Specifications

Pinout & Package

74HC4050DB,118 is packaged in SO16 (SOT109-1): plastic small outline, 16-pin, 3.9 mm body width, surface-mountable with standard reflow profile. Pin 1 marked by index notch; pins 13 and 16 are no-connect (n.c.) terminals.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex non-inverting level shifter applications.

Compared with SN74LVC4050APWR, the 74HC4050DB,118 provides true 15 V input tolerance essential for industrial 24 V systems, while MC74HC4050ADTR2G offers identical functionality in a smaller TSSOP package-making the SO16 variant optimal for thermal management and legacy board compatibility.

Availability

74HC4050DB,118 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, factory automation sensor hubs, and smart energy meter interfaces requiring stable component supply across extended temperature ranges.

Supply support for 74HC4050DB,118 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 headquartered in Nijmegen, Netherlands, specializing in high-volume, high-reliability logic, analog, and discrete devices for industrial, automotive, and consumer markets.

The 74HC4050DB,118 belongs to Nexperia's 74HC logic family-designed specifically for robust, low-power, mixed-voltage interfacing in harsh-environment applications where reliability and long-term supply stability are critical.

FAQ

Can 74HC4050DB,118 translate LOW-to-HIGH voltage levels?

No. The 74HC4050DB,118 is strictly a HIGH-to-LOW level shifter: inputs tolerate up to 15 V while outputs swing only between GND and VCC. It cannot generate output voltages higher than its supply rail. For bidirectional or LOW-to-HIGH translation, dedicated translators like TXB0106 or discrete MOSFET-based circuits are required.

What is the maximum capacitive load each output can drive reliably?

Each output is characterized up to 50 pF load capacitance in the datasheet (t_pd, t_t measured with C_L = 50 pF). Driving >50 pF increases propagation delay and transition time linearly; for 100 pF loads, t_pd increases ~25% at VCC = 4.5 V. Use series termination or local buffering if driving long traces or multiple inputs.

Are pins 13 and 16 internally connected or left floating?

Pins 13 and 16 are explicitly designated "n.c." (not connected) in Table 2 and Fig. 4 of the datasheet. They are not bonded to any internal die structure and must remain unconnected-no routing, soldering, or grounding is permitted, as doing so may compromise ESD performance or cause latch-up.

Does 74HC4050DB,118 require external pull-up resistors on inputs?

No. Inputs are CMOS with negligible DC leakage (±0.5 μA max at 15 V) and defined VIH/VIL thresholds. Pull-ups are unnecessary unless interfacing with open-drain sources that require active-high biasing; in such cases, a 10 kΩ resistor to VCC is sufficient and compatible with 15 V tolerance.