Texas Instruments CD4572UBPWR

Overview

CD4572UBPWR from Texas Instruments is a CMOS hex inverter/buffer IC with six independent logic gates - one inverter, two NOR gates, one NAND gate, one OR gate, and one AND gate - operating over -55°C to +125°C, with supply voltage range 3 V to 18 V, and typical propagation delay of 90 ns at 5 V. It serves as a versatile logic resource in legacy industrial control and instrumentation signal conditioning.

For engineers reviewing the CD4572UBPWR datasheet, CD4572UBPWR pinout, CD4572UBPWR application, or CD4572UBPWR equivalent, this device offers mixed-logic-function integration in a space-constrained TSSOP-16 package with industry-standard pin compatibility across the CD4572UB family and full temperature-range operation for ruggedized designs.

Technical Context

The CD4572UBPWR implements six discrete logic functions in a single monolithic CMOS die: one inverter (A→Y), two 2-input NOR gates (A,B→Y), one 2-input NAND gate (A,B→Y), one 2-input OR gate (A,B→Y), and one 2-input AND gate (A,B→Y). All inputs are compatible with TTL and CMOS logic levels.

It features high noise immunity (typical V_NIH = 0.45 V_DD, V_NIL = 0.55 V_DD), low static current (<100 nA at 25°C), and rail-to-rail output swing. Input protection diodes enable robust ESD tolerance per MIL-STD-883 Class 3B.

Key Specifications

Pinout & Package

TSSOP-16 (PW) package: 4.4 mm × 5.0 mm body, 0.65 mm lead pitch, 1.2 mm max height, RoHS-compliant NIPDAU finish, MSL Level-1, tape-and-reel (2000 pcs/reel), pin 1 quadrant Q1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar mixed-logic-gate applications.

Compared with CD4572UBPWR, CD4072UBM provides only OR logic in a smaller package but cannot replace the full function set, while MC14572UBDR2G delivers identical logic and pinout with minor packaging-process differences-making it the closest functional alternative for drop-in redesigns.

Availability

CD4572UBPWR is available at Aetrix Electronics and suitable for industrial control logic, aerospace power sequencing, and automotive body controller applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for CD4572UBPWR 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 specializing in analog, embedded processing, and logic solutions with over 90 years of innovation in high-reliability components.

The CD4572UBPWR belongs to TI's legacy CD4000-series CMOS logic family, designed for ruggedized, wide-voltage, extended-temperature applications where interoperability with legacy systems and long-term obsolescence resistance are critical.

FAQ

What logic functions does the CD4572UBPWR integrate?

The CD4572UBPWR integrates six independent logic functions in one TSSOP-16 package: one inverter, two 2-input NOR gates, one 2-input NAND gate, one 2-input OR gate, and one 2-input AND gate. Each function operates with standard CMOS input thresholds and rail-to-rail outputs. This configuration allows system designers to replace multiple discrete logic ICs with a single CD4572UBPWR, reducing PCB area and interconnect complexity in space-constrained applications.

Is the CD4572UBPWR pin-compatible with other CD4572UB variants?

Yes, the CD4572UBPWR is fully pin-compatible with all other CD4572UB variants-including CD4572UBE (PDIP-16), CD4572UBM (SOIC-16), and CD4572UBNSR (SOP-16)-as they share identical pin numbering, logic mapping, and electrical specifications. The only differences lie in package dimensions, thermal characteristics, and moisture sensitivity level; thus, CD4572UBPWR can be substituted into existing layouts designed for those variants with no schematic or netlist changes.

What is the maximum operating frequency supported by the CD4572UBPWR?

The CD4572UBPWR is not characterized for maximum clock frequency due to its combinational logic architecture, but its typical propagation delay is 90 ns at V_DD = 5 V and 25°C, supporting reliable operation up to approximately 5–6 MHz in synchronous edge-triggered contexts. In asynchronous logic networks, timing depends on path depth and loading; for example, a three-gate cascade yields ~270 ns total delay. System-level timing must be verified per actual load capacitance and supply conditions.

Does the CD4572UBPWR require external pull-up or pull-down resistors on unused inputs?

Yes, all unused inputs on the CD4572UBPWR must be terminated to either V_DD or GND using external resistors (typically 10–100 kΩ) to prevent floating nodes, which can cause increased supply current, erratic output behavior, or localized heating. CMOS inputs have high impedance and no internal termination; leaving them unconnected risks metastability and violates TI's recommended handling practices outlined in the CD4572UB datasheet.

Can the CD4572UBPWR drive LED indicators directly?

Yes, the CD4572UBPWR can drive standard 2 mA–5 mA LEDs directly when operated at V_DD ≥ 9 V, using an appropriate series current-limiting resistor. At V_DD = 12 V, each output can sink or source up to ±4.2 mA, enabling direct LED connection with a 1.5 kΩ resistor for ~5 mA forward current. For higher-current LEDs or lower supply voltages, an external transistor buffer is recommended to maintain output integrity and avoid exceeding absolute maximum ratings.