CD4068BM Equivalent & Substitute Parts

Part Overview

The CD4068BM is an 8-input NAND/AND gate logic integrated circuit manufactured by Texas Instruments, part of the 4000B series. This component is classified as Last Time Buy, indicating discontinued production with limited remaining inventory (3200 pcs). The CD4068BM is packaged in 14-SOIC surface mount configuration and operates across a wide supply voltage range of 3V to 18V, making it suitable for diverse industrial and consumer applications requiring configurable logic gating functions.

Due to Last Time Buy status, identifying functionally equivalent substitute parts with active production status is essential for long-term design continuity and supply chain reliability.

Substiute Parts

CD4068BM

Texas InstrumentsIn Stock: 3265CD4068BM Datasheet

Current PartRFQ

CD4068BM96

Texas InstrumentsIn Stock: 17267CD4068BM96 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD4068BM is determined by strict equivalence across the following critical parameters:

• Logic Type: NAND/AND Gate configuration
• Number of Circuits: 1 circuit
• Number of Inputs: 8 inputs
• Output Type: Single-Ended output
• Output Current Capability: 6.8mA high and low
• Supply Voltage Range: 3V ~ 18V
• Operating Temperature Range: -55°C ~ 125°C
• Package / Case: 14-SOIC form factor
• Mounting Type: Surface Mount

The CD4068BM96 qualifies as a direct substitute based on complete parameter alignment across all electrical and mechanical specifications. The primary distinction is packaging format (Cut Tape & Digi-Reel versus Tube) and product status (Active versus Last Time Buy), with no functional or performance differences.

Parameter Comparison

Engineering Selection Recommendations

The CD4068BM96 is the direct functional equivalent for CD4068BM applications. Selection between these parts should be based on the following criteria:

CD4068BM (Last Time Buy): Use only when existing inventory must be consumed or when tube packaging is specifically required for existing assembly processes. Inventory is limited to 3200 units.

CD4068BM96 (Active Status): Recommended for new designs and ongoing production requirements. This part maintains Active product status with significantly higher inventory availability (17202 units), ensuring supply chain continuity. Both parts share identical electrical specifications, thermal performance, and compliance certifications (ROHS3, REACH Unaffected).

Both parts are suitable for applications requiring 8-input NAND/AND gate logic with wide supply voltage tolerance (3V to 18V) and extended temperature operation (-55°C to 125°C). The packaging format difference (Tube versus Cut Tape & Digi-Reel) does not affect electrical performance and is determined by procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can CD4068BM96 be used as a direct replacement for CD4068BM in existing designs?

A: Yes. The CD4068BM96 is electrically and mechanically identical to the CD4068BM. All functional parameters, output characteristics, supply voltage range, and operating temperature specifications are equivalent. The only differences are product status (Active versus Last Time Buy) and packaging format (Cut Tape & Digi-Reel versus Tube).

Q: What is the significance of the Last Time Buy status on CD4068BM?

A: Last Time Buy indicates that Texas Instruments has discontinued production of the CD4068BM. The remaining inventory of 3200 units represents the final available stock. Once depleted, this specific part number will no longer be available. For long-term supply security, transition to the CD4068BM96 is recommended.

Q: Are there any differences in the 14-SOIC package between these parts?

A: No. Both parts use the identical 14-SOIC package with 0.154" (3.90mm) width. The package footprint, pin configuration, and mechanical dimensions are identical, allowing direct PCB layout compatibility.

Q: Does the packaging format (Tube versus Cut Tape & Digi-Reel) affect performance?

A: No. Packaging format is a logistics and assembly consideration only. It does not affect electrical performance, reliability, or functional characteristics. Selection should be based on assembly equipment compatibility and procurement preferences.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both CD4068BM and CD4068BM96 are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage procedures are sufficient; no special moisture control measures are required.