STMicroelectronics HCF4050M013TR

Overview

HCF4050M013TR from STMicroelectronics is a non-inverting hex buffer/level converter in SO-16 package, designed for CMOS-to-DTL/TTL logic level translation using a single supply (3–20 V). It supports VIH > VDD input tolerance, delivers ±3.2 mA output drive at 5 V, and achieves 40 ns typical propagation delay at 10 V with 50 pF load - used in industrial control I/O interfacing and mixed-voltage sensor signal conditioning.

For engineers reviewing the HCF4050M013TR datasheet, HCF4050M013TR pinout, HCF4050M013TR application, or HCF4050M013TR equivalent, key selection criteria include input overvoltage tolerance, single-supply level conversion capability, output drive strength across 5/10/15 V operation, and guaranteed quiescent current up to 20 V.

Technical Context

The HCF4050M013TR implements six independent non-inverting buffer stages in a single B-series CMOS die, enabling simultaneous level shifting of multiple signals without inversion. Each channel accepts input voltages up to 18 V regardless of VDD, supporting direct interface between higher-voltage sensors and lower-voltage logic.

It operates across −55 °C to +125 °C with rail-to-rail output swing (VOL ≤ 0.05 V, VOH ≥ 9.95 V at VDD = 10 V), and maintains noise margins of ≥2 V at 10 V supply - critical for reliable operation in electrically noisy industrial environments.

Key Specifications

Pinout & Package

Package: SO-16 (Small Outline, 16-pin, surface-mount, 1.27 mm pitch, body width 3.9–4.1 mm per PO13H mechanical drawing).

Key Features

Applications

Equivalent & Alternatives

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

Compared with CD4050BE and 74HC4050D, HCF4050M013TR uniquely combines wide supply range (3–20 V), input overvoltage tolerance (up to 18 V), and extended temperature qualification (−55 to +125 °C), making it the only option for ruggedized mixed-voltage industrial interfaces.

Availability

HCF4050M013TR is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and mixed-voltage sensor interfaces requiring stable component supply across extended temperature and voltage ranges.

Supply support for HCF4050M013TR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing analog, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.

The HCF4050M013TR belongs to ST's legacy B-series CMOS logic family, engineered specifically for robust level translation in harsh-environment control systems where reliability across wide voltage and temperature ranges is mandatory.

FAQ

Can HCF4050M013TR safely interface a 12 V sensor output to a 5 V microcontroller?

Yes. Its inputs tolerate up to 18 V regardless of VDD, and with VDD = 5 V, it produces clean 0.05 V / 4.95 V logic levels compatible with standard 5 V TTL/CMOS inputs. No external resistors or clamps are needed, provided the sensor source impedance is ≤10 kΩ and current remains within ±10 mA absolute maximum ratings.

What is the maximum capacitive load each output can drive while maintaining specified tPD?

The datasheet specifies tPD = 40 ns (typ.) at CL = 50 pF and VDD = 10 V. Driving >100 pF increases propagation delay nonlinearly and may degrade edge rates; for loads >75 pF, add series termination or reduce VDD to improve slew control. Output rise/fall times remain within spec up to 100 pF at VDD = 5 V.

Is HCF4050M013TR pin-compatible with older CD4050 variants?

Yes - it shares identical SO-16 pinout and truth table with CD4050BM, CD4050BE, and HCF4050BM1. All six inputs (pins 1,3,5,7,9,11), six outputs (2,4,6,10,12,15), VDD (16), VSS (8), and NC (13) map identically. No PCB redesign is required for drop-in replacement.

Does HCF4050M013TR require external pull-up or pull-down resistors on unused inputs?

No. Unused inputs must be tied to VDD or VSS to prevent floating states and excessive ICC, but no external resistors are needed - the device's input structure has built-in protection and biasing. Leaving inputs unconnected risks increased supply current and erratic output behavior due to noise coupling.