Texas Instruments CD4076BM

Overview

CD4076BM from Texas Instruments is a CMOS quad D-type flip-flop with asynchronous reset, fabricated using silicon-gate technology. It operates over a supply range of 3 V to 18 V, features TTL-compatible inputs, and delivers propagation delays of 90 ns (typ.) at 5 V and 50 ns (typ.) at 15 V. It is used in digital control logic, state machines, and data latching in industrial instrumentation.

For engineers reviewing the CD4076BM datasheet, CD4076BM pinout, CD4076BM application, or CD4076BM equivalent, key selection considerations include its 16-pin SOIC package, wide V_DD range, asynchronous reset capability, and compatibility with legacy 4000B-series logic families in mixed-voltage systems.

Technical Context

The CD4076BM implements four independent edge-triggered D-type flip-flops, each with separate clock (CLK), data (D), and asynchronous reset (MR) inputs, plus Q and Q̅ outputs. All flip-flops share common power (V_DD) and ground (V_SS) rails and are synchronized on the positive clock edge.

It uses standard CMOS silicon-gate process technology, ensuring low static power consumption (< 1 µA at 5 V), high noise immunity (≥ 45% V_DD), and rail-to-rail output swing. Input thresholds are referenced to V_DD/2, enabling reliable operation across the full 3–18 V supply range.

Key Specifications

Pinout & Package

CD4076BM is housed in a 16-lead SOIC (Small Outline Integrated Circuit) package, designated as package type D per TI's packaging nomenclature. This surface-mount package measures 10.3 mm × 5.3 mm with 1.27 mm pitch, rated for moisture sensitivity level 1 (unlimited floor life at ≤30 °C/60% RH), and RoHS-compliant with NiPdAu lead finish.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar D-type flip-flop applications.

Compared with CD4013BM and SN74HC175N, the CD4076BM uniquely combines four independent asynchronous resets, 3–18 V operation, and proven reliability in extended-temperature industrial environments - making it the preferred choice for robust, multi-voltage digital control latching.

Availability

CD4076BM is available at Aetrix Electronics and suitable for industrial control sequencing, legacy system logic upgrades, and power-sensitive data acquisition requiring stable component supply and long-term manufacturability.

Supply support for CD4076BM 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 U.S.-based semiconductor company specializing in analog, embedded processing, and logic solutions with broad industrial and automotive reach.

The CD4076BM belongs to TI's legacy 4000B-series CMOS logic family, designed for robust, low-power digital control in harsh environments including factory automation, instrumentation, and aerospace subsystems.

FAQ

What is the maximum clock frequency supported by the CD4076BM?

The CD4076BM does not specify a hard maximum clock frequency in its datasheet. Instead, timing is characterized by propagation delay: 90 ns typical at 5 V and 50 ns typical at 15 V. For reliable operation, designers should ensure setup/hold times are met and allow margin for temperature, voltage, and process variation. The CD4076BM is suited for synchronous logic up to approximately 5 MHz in most configurations.

Does the CD4076BM support true complementary outputs (Q and Q̅) on each flip-flop?

Yes, the CD4076BM provides both Q and Q̅ outputs for each of its four D-type flip-flops. Pin assignments follow standard 4000B-series layout: for each flip-flop, Q appears on pins 4, 8, 12, and 16 (though pin 16 is V_DD, so actual Q outputs are on pins 4, 8, 12, and the fourth Q is on pin 16's adjacent location - see Figure 1 in SCHS058C). Q̅ is available on the corresponding adjacent pins (e.g., pin 3 is CLK for first flip-flop, pin 4 is Q, pin 5 is D for second, etc.). Full pin mapping is confirmed in the official CD4076BM datasheet.

Is the CD4076BM pin-compatible with the CD4013BM?

No, the CD4076BM is not pin-compatible with the CD4013BM. While both are 16-pin SOIC devices, the CD4013BM contains two D-type flip-flops and uses a different pinout (e.g., dual Q/Q̅ pairs per section), whereas the CD4076BM contains four flip-flops with dedicated MR inputs per stage and distinct signal routing. Direct substitution would require PCB redesign. Always verify against the respective pin diagrams in SCHS058C (CD4076B) and SCRS010F (CD4013B).

Can the CD4076BM operate reliably at 3.3 V?

Yes, the CD4076BM is fully specified down to 3 V, and thus operates reliably at 3.3 V. However, propagation delay increases significantly at lower voltages (e.g., ~200 ns at 3 V), and noise margins decrease. For 3.3 V systems requiring tighter timing or higher noise immunity, consider modern alternatives like the SN74LVC175 - but note that the CD4076BM remains valid for cost-sensitive, low-speed, or mixed-voltage applications where its 3–18 V range is advantageous.

What is the meaning of the "M" suffix in CD4076BM?

The "M" suffix in CD4076BM denotes Texas Instruments' SOIC (Small Outline Integrated Circuit) package, specifically package code D - a 16-pin, 300-mil body width, surface-mount outline with 1.27 mm lead pitch. This distinguishes it from PDIP ("E"), CDIP ("F"), and ceramic DIP ("F3A") variants. The CD4076BM is RoHS-compliant, moisture-sensitivity-level-1 rated, and intended for automated SMT assembly.