CD4070BE XOR Logic IC - Equivalent & Substitute Parts

Part Overview

The CD4070BE is a 4-channel XOR (Exclusive OR) logic integrated circuit manufactured by Texas Instruments in the 4000B series. This through-hole component operates across a wide supply voltage range of 3V to 18V, making it suitable for both legacy and modern digital logic applications. The part is currently in active production status with 20,100 units in stock. Alternative equivalent parts are necessary when primary stock is unavailable or when design flexibility across compatible logic families is required.

Substiute Parts

CD4070BE

Texas InstrumentsIn Stock: 20142CD4070BE Datasheet

Current PartRFQ

CD4030BE

Texas InstrumentsIn Stock: 16786CD4030BE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD4070BE is determined by strict equivalence across the following critical parameters:

• Logic function: XOR (Exclusive OR) with identical 4-channel, 2-input configuration
• Electrical specifications: Supply voltage range (3V ~ 18V), quiescent current (1 µA max), output current (3.4mA), and propagation delay (100ns @ 15V, 50pF)
• Package format: 14-DIP through-hole mounting with identical pin configuration
• Operating temperature range: -55°C ~ 125°C
• Compliance certifications: ROHS3 compliance and REACH unaffected status

The CD4030BE qualifies as a parametric equivalent based on identical electrical performance, logic configuration, and physical packaging specifications.

Parameter Comparison

Engineering Selection Recommendations

Both CD4070BE and CD4030BE are active production components from Texas Instruments with identical electrical and mechanical specifications. Selection between these parts is based on availability and inventory status. The CD4070BE maintains higher stock levels at 20,100 units. The CD4030BE provides an alternative with 16,750 units available. Both parts meet ROHS3 compliance requirements and are REACH unaffected, making either suitable for applications requiring regulatory compliance. Pin-for-pin compatibility and identical electrical performance ensure direct substitution without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can CD4030BE replace CD4070BE in existing designs? A: Yes. Both parts are pin-for-pin compatible 14-DIP packages with identical electrical specifications, logic function, and operating parameters. Direct substitution requires no circuit changes.

Q: Are there differences in logic function between these parts? A: No. Both are 4-channel, 2-input XOR logic gates with identical truth tables and electrical behavior.

Q: Do both parts support the same supply voltage range? A: Yes. Both operate across 3V to 18V supply voltage with identical quiescent current and output drive specifications.

Q: What is the significance of the 14-DIP package format? A: The 14-DIP (0.300", 7.62mm) is a through-hole package with standardized pin spacing. Both parts use this identical package, ensuring mechanical and electrical compatibility on PCBs designed for either component.

Q: Are there compliance differences between these parts? A: No. Both parts are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements.

Q: What determines substitution eligibility for CD4070BE? A: Substitution requires matching logic type (XOR), circuit count (4 channels), input count (2 inputs), supply voltage range (3V ~ 18V), propagation delay (100ns @ 15V, 50pF), operating temperature (-55°C ~ 125°C), and package format (14-DIP through-hole).