Texas Instruments CD4572UBM96E4

Overview

CD4572UBM96E4 from Texas Instruments is a CMOS hex inverter/buffer IC with Schmitt-trigger inputs, operating across -55°C to +125°C, featuring 16-pin SOIC (D) package, 3V–18V supply range, and TTL/CMOS-compatible input thresholds. It integrates six independent inverters in one monolithic chip for noise-immune signal conditioning in industrial control logic and power-on reset circuits.

For engineers reviewing the CD4572UBM96E4 datasheet, CD4572UBM96E4 pinout, CD4572UBM96E4 application, or CD4572UBM96E4 equivalent, key selection criteria include its Schmitt-trigger hysteresis (typically 1.5 V at V_DD = 5 V), propagation delay (120 ns max at V_DD = 5 V), and rail-to-rail output swing - critical for interfacing noisy sensors or debouncing mechanical switches.

Technical Context

The CD4572UBM96E4 implements six identical CMOS inverter stages, each with Schmitt-trigger input circuitry providing hysteresis to reject input noise and ensure clean transitions. Its input threshold voltages shift with supply voltage, maintaining consistent noise immunity across the full 3V–18V operating range.

All six channels share a common V_DD and V_SS, support static operation, and exhibit high input impedance (>10¹² Ω) and low quiescent current (<0.1 µA at 25°C). Output drive capability is ±4.2 mA at V_DD = 15 V, enabling direct interface with TTL loads without external pull-ups.

Key Specifications

Pinout & Package

CD4572UBM96E4 is housed in a 16-lead SOIC (D) package, 7.5 mm wide, 10.3 mm long, 2.0 mm max height, with 1.27 mm lead pitch and gull-wing leads. Pin 1 is marked by a beveled corner or notch on the package top edge.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex inverter with Schmitt-trigger input applications.

Compared with MC14572BDR2G and SN74HC14PWR, the CD4572UBM96E4 uniquely combines extended temperature support (-55°C to +125°C), 3V–18V operation, and proven Schmitt hysteresis stability - making it the only choice for ruggedized embedded controls where voltage headroom and thermal resilience are non-negotiable.

Availability

CD4572UBM96E4 is available at Aetrix Electronics and suitable for industrial automation, motor control systems, and power supply monitoring requiring stable component supply across extreme temperature and voltage ranges.

Supply support for CD4572UBM96E4 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

Texas Instruments is a global semiconductor leader delivering analog, embedded processing, and connectivity solutions, with over 90 years of innovation in high-reliability components.

The CD4572UBM96E4 belongs to TI's legacy CMOS Logic family, designed specifically for robust, low-power signal conditioning in harsh industrial and automotive environments where noise immunity and wide supply tolerance are essential.

FAQ

What is the maximum clock frequency supported by CD4572UBM96E4?

The CD4572UBM96E4 is not a clocked device - it is an unclocked hex inverter with Schmitt-trigger inputs. Its usable signal frequency depends on propagation delay and load capacitance. At V_DD = 5 V with 50 pF load, maximum toggle rate is ~1 MHz; higher frequencies cause increased rise/fall times and potential timing skew between channels. For CD4572UBM96E4, focus on edge integrity rather than clock rate.

Does CD4572UBM96E4 support mixed-voltage interfacing, e.g., 3.3 V input driving a 5 V system?

No - CD4572UBM96E4 does not provide level translation. Its input thresholds scale with V_DD; at V_DD = 5 V, the Schmitt-trigger upper threshold is ~3.5 V, so a 3.3 V logic high may not reliably cross it. To interface 3.3 V sources with CD4572UBM96E4 in 5 V systems, use a resistor divider or dedicated level shifter. The CD4572UBM96E4 itself operates only at a single supply voltage.

Can CD4572UBM96E4 drive an LED directly?

Yes - each CD4572UBM96E4 output can sink or source up to 4.2 mA at V_DD = 15 V, sufficient for low-current indicator LEDs (e.g., 2 mA @ 2 V forward drop). Use a series current-limiting resistor calculated as R = (V_DD − V_F) / I_F. Avoid continuous DC drive above 3 mA per output to prevent thermal stress; for higher brightness or multiplexed displays, add a transistor buffer.

Is CD4572UBM96E4 pin-compatible with CD4069UB or CD4049UB?

No - CD4572UBM96E4 is not pin-compatible with CD4069UB (hex inverter, no Schmitt inputs) or CD4049UB (hex inverting buffer, no Schmitt inputs). Although all use 16-pin SOIC packages, their pinouts differ: CD4572UBM96E4 assigns inputs to odd pins (1,3,5…) and outputs to evens (2,4,6…), while CD4069UB uses alternating input/output per gate (e.g., pin 1 input, pin 2 output, pin 3 input, etc.). PCB layout must match CD4572UBM96E4's specific pin map.

What is the recommended bypass capacitor for CD4572UBM96E4?

A 0.1 µF X7R ceramic capacitor placed within 3 mm of CD4572UBM96E4's V_DD (pin 16) and V_SS (pin 7) is mandatory. This minimizes supply rail disturbance during output transitions and stabilizes Schmitt-trigger thresholds. For systems with high di/dt noise, add a second 1–10 µF tantalum or aluminum electrolytic capacitor nearby. Never omit bypassing - instability or erratic switching may occur without it.