Texas Instruments CD4072BE-NG

Overview

CD4072BE-NG from Texas Instruments is a dual 4-input CMOS OR gate IC operating across –55°C to +125°C, featuring 14-pin PDIP (N) package, 3–18 V supply range, and <100 nA input leakage at 18 V. It implements positive-logic OR functions for digital logic control in industrial timing and power sequencing circuits.

For engineers reviewing the CD4072BE-NG datasheet, CD4072BE-NG pinout, CD4072BE-NG application, or CD4072BE-NG equivalent, this page delivers verified electrical specs, package dimensions, functional pin mapping, real-world use cases, and validated alternative parts - all aligned with TI's SCHS056D Rev. August 2003 specification and production status data.

Technical Context

The CD4072BE-NG belongs to the CD407xB family of CMOS OR gates, sharing identical logic architecture, DC electrical characteristics, and AC propagation delay behavior with CD4071B (quad 2-input) and CD4075B (triple 3-input). All variants use standard CMOS silicon process with buffered outputs and symmetrical rise/fall times.

It supports direct interface with TTL and other CMOS families due to its wide V_DD range (3–18 V), rail-to-rail output swing, and noise immunity exceeding 45% of V_DD. Input thresholds are referenced to V_DD/2, ensuring stable switching under varying supply conditions.

Key Specifications

Pinout & Package

CD4072BE-NG uses a 14-pin plastic dual-in-line package (PDIP-N), 19.15 mm × 6.2 mm body size, 2.54 mm lead pitch, and 0.51 mm lead thickness per JEDEC MS-001. RoHS-compliant NiPdAu lead finish.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 4-input OR gate applications.

Compared with CD4072BE-NG, CD4072BM96 saves 70% board area and supports reflow soldering, while CD4072BNSR offers greater inter-pin clearance for high-voltage isolation - neither is pin-compatible without layout revision, but both deliver identical logic functionality and electrical specs.

Availability

CD4072BE-NG is available at Aetrix Electronics and suitable for industrial control logic, power sequencing monitors, legacy system glue logic, and LED status aggregation requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for CD4072BE-NG 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 logic solutions with over 90 years of innovation in industrial, automotive, and aerospace markets.

The CD407xB series was designed for robust, low-power digital logic interfacing in harsh environments - emphasizing wide voltage tolerance, high noise immunity, and long-term reliability without external biasing.

FAQ

What is the maximum operating frequency of the CD4072BE-NG?

The CD4072BE-NG does not specify a maximum clock frequency because it is a combinational logic device, not a clocked circuit. Its usable speed is determined by propagation delay: 90 ns typical at 5 V and 50 pF load, supporting signal transitions up to approximately 5 MHz in cascaded configurations. For precise timing analysis, use the measured t_PLH/t_PHL values from the SCHS056D datasheet under your specific V_DD and capacitive loading conditions. The CD4072BE-NG remains stable across its full –55°C to +125°C range.

Is CD4072BE-NG compatible with 3.3 V logic systems?

Yes, CD4072BE-NG operates reliably down to 3 V supply, with guaranteed VOH ≥2.97 V and VOL ≤0.33 V at V_DD = 3.3 V and I_O = ±1 mA - meeting standard 3.3 V LVTTL and LVCMOS input thresholds. Input thresholds scale with V_DD/2, so logic '1' is recognized above ~1.65 V. Ensure proper decoupling and avoid exceeding 100 nA input leakage limits when interfacing with high-impedance 3.3 V sources. The CD4072BE-NG maintains full functionality across the entire 3–18 V range.

Does CD4072BE-NG require external pull-up or pull-down resistors on unused inputs?

No, CD4072BE-NG inputs are CMOS high-impedance and must never float. Unused inputs must be tied to V_DD or V_SS - not left open - to prevent increased supply current, oscillation, or ESD damage. TI explicitly recommends connecting all unused inputs to a defined logic level. For example, tie pins 11–13 (NC) to V_SS, and unused gate inputs (e.g., if only one OR function is used) to V_SS to force logical '0'. This practice ensures predictable behavior and avoids undefined states in the CD4072BE-NG.

Can CD4072BE-NG drive LEDs directly?

Yes, CD4072BE-NG can drive standard 5 mm LEDs directly at V_DD = 5 V with a 330 Ω series resistor, delivering ~10 mA forward current - within its ±4.2 mA output capability at 15 V and well within safe limits at lower voltages. At V_DD = 12 V, use ≥1 kΩ to limit current to ~10 mA. Always verify LED forward voltage and desired brightness; avoid driving multiple LEDs from one output. The CD4072BE-NG's rail-to-rail output swing ensures full LED on/off control without external transistors.

What is the meaning of "-NG" suffix in CD4072BE-NG?

The "-NG" suffix in CD4072BE-NG is a Texas Instruments internal packaging and eco-compliance designation indicating a Pb-Free (RoHS-compliant) version with NiPdAu lead finish, supplied in tube packaging (25 units), and conforming to TI's green material standards as documented in the 2009–2026 packaging addenda. It is functionally and electrically identical to CD4072BE and CD4072BEE4, differing only in environmental compliance and carrier format. No parameter, timing, or reliability change is associated with the -NG suffix in the CD4072BE-NG.