CD4532BEE4 Equivalent & Substitute Parts

Part Overview

The CD4532BEE4 is a CMOS 8-bit priority encoder manufactured by Texas Instruments, configured as a 1 x 8:3 priority encoder in a 16-pin DIP package. This logic component is classified as Active product status and is RoHS3 compliant. Priority encoders are essential in digital systems for converting multiple input signals into a prioritized binary output, commonly used in interrupt handling, data acquisition, and signal processing applications. Substitute parts are identified based on matching functional specifications, electrical parameters, and package compatibility to ensure direct replacement capability in existing designs.

Substiute Parts

CD4532BEE4

Texas InstrumentsIn Stock: 1091CD4532BEE4 Datasheet

Current PartRFQ

CD4532BE

Harris CorporationIn Stock: 20043CD4532BE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CD4532BEE4 are identified based on the following critical parameters that determine functional and physical compatibility:

Matching Criteria:

• Circuit configuration: 1 x 8:3 priority encoder
• Package type: 16-DIP (0.300", 7.62mm)
• Mounting type: Through Hole
• Voltage supply range: 3V ~ 18V (Dual Supply)
• Output current specifications: 6.8mA (High and Low)
• Operating temperature range: -55°C ~ 125°C
• Series classification: 4000B

The CD4532BE from Harris Corporation meets all electrical and mechanical parameters specified above, making it a parametric equivalent. However, product status and compliance certifications differ and must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

CD4532BEE4 (Primary Selection): The CD4532BEE4 from Texas Instruments is the recommended primary choice for new designs and applications requiring active product support. This part carries Active product status, ensuring continued availability and manufacturer support. It is RoHS3 compliant, meeting current environmental and regulatory requirements for commercial and industrial applications. The part is currently in stock with 1057 units available.

CD4532BE (Substitute Selection): The CD4532BE from Harris Corporation is a parametric equivalent suitable for replacement in existing systems where the original CD4532BEE4 is unavailable. This part is classified as Obsolete and is RoHS non-compliant. Selection of this substitute should be limited to legacy system maintenance, repair, or applications where regulatory compliance is not a requirement. The CD4532BE is available in higher inventory (19950 units), which may be relevant for high-volume legacy system support. Electrical and mechanical compatibility is confirmed across all critical parameters.

Compliance Considerations: Applications subject to RoHS directives, REACH regulations, or other environmental compliance standards must use the CD4532BEE4. The CD4532BE should only be selected when regulatory compliance is not applicable or when supporting legacy equipment manufactured prior to compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can the CD4532BE directly replace the CD4532BEE4 in a new design? A: The CD4532BE is electrically and mechanically compatible with the CD4532BEE4. However, the CD4532BE is classified as Obsolete and is RoHS non-compliant. New designs should use the CD4532BEE4 to ensure long-term availability and regulatory compliance.

Q: What are the key differences between these two parts? A: The primary differences are product status (Active vs. Obsolete) and RoHS compliance (ROHS3 Compliant vs. RoHS non-compliant). All electrical parameters, circuit configuration, and package specifications are identical.

Q: Are the package dimensions identical between CD4532BEE4 and CD4532BE? A: Yes. Both parts use the 16-DIP (0.300", 7.62mm) package with Through Hole mounting. They are physically interchangeable on PCBs designed for this package type.

Q: What is the voltage supply requirement for these priority encoders? A: Both parts operate with a Dual Supply voltage range of 3V ~ 18V. This allows flexibility in system design for various power supply configurations.

Q: Are there any temperature range limitations for these parts? A: Both the CD4532BEE4 and CD4532BE operate across the same temperature range of -55°C ~ 125°C, suitable for industrial and extended-temperature applications.

Q: What output current specifications should I consider for circuit design? A: Both parts provide identical output current specifications: 6.8mA for High output and 6.8mA for Low output. These values should be used for load calculation and fan-out analysis in digital logic designs.

Q: Is the CD4532BE still available for purchase? A: The CD4532BE is listed as Obsolete but shows high inventory availability (19950 units). However, future availability cannot be guaranteed. For new projects, the CD4532BEE4 is the recommended choice.

Q: What does "1 x 8:3" circuit configuration mean? A: This indicates a single priority encoder circuit with 8 inputs and 3 outputs. The encoder prioritizes input signals and produces a 3-bit binary output representing the highest priority active input.