CD4532BM Priority Encoder Equivalent & Substitute Parts

Part Overview

The CD4532BM is a priority encoder logic integrated circuit manufactured by Texas Instruments, classified as a 1 x 8:3 priority encoder in the 4000B series. This component is currently in Last Time Buy status, indicating limited availability from the original manufacturer. The CD4532BM is packaged in 16-SOIC surface mount configuration and is ROHS3 compliant with unlimited moisture sensitivity rating.

Due to Last Time Buy status, equivalent substitute parts from both Texas Instruments and onsemi are available to ensure design continuity and supply chain reliability.

Substiute Parts

CD4532BM

Texas InstrumentsIn Stock: 1393CD4532BM Datasheet

Current PartRFQ

CD4532BM96

Texas InstrumentsIn Stock: 19909CD4532BM96 Datasheet

MFR RecommendedRFQ

MC14532BDG

onsemiIn Stock: 50423MC14532BDG Datasheet

DirectRFQ

MC14532BDR2G

onsemiIn Stock: 4621MC14532BDR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD4532BM is determined by the following critical parameters:

• Circuit type and configuration (1 x 8:3 priority encoder)
• Package type (16-SOIC surface mount)
• Voltage supply range (3V ~ 18V dual supply)
• Operating temperature range (-55°C ~ 125°C)
• Output current specifications
• RoHS and compliance certifications

All substitute parts listed maintain identical circuit configuration, package footprint, voltage supply characteristics, and temperature operating range. Packaging format (Tube, Tape & Reel, Cut Tape) does not affect electrical compatibility but impacts procurement and assembly workflows.

Parameter Comparison

Engineering Selection Recommendations

CD4532BM96 is the primary substitute from Texas Instruments, maintaining identical output current specifications (6.8mA) while offering Active product status and significantly higher inventory availability. This part is suitable for direct replacement in applications requiring Texas Instruments sourcing or existing supply chain relationships.

MC14532BDG and MC14532BDR2G are onsemi equivalents with Active product status and extensive inventory. These parts feature slightly elevated output current specifications (8.8mA versus 6.8mA) but remain within acceptable operating parameters for 16-SOIC priority encoder applications. The onsemi variants provide superior long-term availability and supply chain stability.

All substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity rating, ensuring compatibility with current manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can MC14532BDG replace CD4532BM in existing designs? A: Yes. Both parts share identical circuit configuration (1 x 8:3 priority encoder), package footprint (16-SOIC), voltage supply range (3V ~ 18V), and operating temperature range (-55°C ~ 125°C). The onsemi part features higher output current (8.8mA versus 6.8mA), which is compatible with standard logic applications.

Q: What is the difference between CD4532BM96 and CD4532BM? A: Both are Texas Instruments parts with identical electrical specifications. The primary difference is packaging format: CD4532BM is supplied in Tube format, while CD4532BM96 is supplied in Tape & Reel format. CD4532BM96 also has Active product status versus Last Time Buy for the original CD4532BM.

Q: Are MC14532BDR2G and MC14532BDG electrically equivalent? A: Yes. Both onsemi parts are electrically identical 1 x 8:3 priority encoders in 16-SOIC packages. The difference is packaging format: MC14532BDG is supplied in Tube, while MC14532BDR2G is supplied in Cut Tape format.

Q: Does the higher output current of onsemi parts affect compatibility? A: No. The onsemi variants (8.8mA) have higher output current than Texas Instruments parts (6.8mA), which is compatible with standard logic circuit requirements. Higher output current does not create compatibility issues in typical applications.

Q: Which substitute offers the best long-term availability? A: MC14532BDG offers the highest inventory level (50400 Pcs) and Active product status, providing optimal long-term supply chain reliability for new designs or high-volume production.