Texas Instruments

CD4532BM

CD4532BM Description

The CD4532BM from Texas Instruments is a high-performance 8-input priority encoder integrated circuit (IC) belonging to the 4000B series, designed for dual-supply voltage operation (3V to 18V). Housed in a 16-pin SOIC package, this surface-mount device encodes eight active-low inputs into a 3-bit binary output, prioritizing the highest-order input. It features dual-supply compatibility, making it versatile for mixed-voltage systems, and offers 6.8mA output current (sink/source) for robust signal driving. With REACH Unaffected and ROHS3 Compliant status, it meets stringent environmental regulations.

CD4532BM Features

• Priority Encoding Logic: Processes 1 x 8:3 encoding, ensuring the highest-priority input is selected.
• Wide Voltage Range (3V–18V): Supports flexible power supply configurations, including dual-supply systems.
• High Output Drive (6.8mA): Capable of driving capacitive loads and long traces.
• Low Power Consumption: CMOS technology ensures minimal static power dissipation.
• MSL 1 (Unlimited): Suitable for extended storage without moisture sensitivity concerns.
• Industrial-Grade Reliability: Texas Instruments quality ensures stability across temperature ranges.

CD4532BM Applications

• Digital Systems: Priority interrupt handling in microcontrollers or CPUs.
• Communication Equipment: Address encoding in multiplexed data buses.
• Industrial Control: Sensor priority management in automation systems.
• Consumer Electronics: Keypad scanning and input prioritization in embedded devices.
• Automotive Electronics: Fault detection and signal prioritization in vehicle control units.

Conclusion of CD4532BM

The CD4532BM is a robust, last-time-buy priority encoder ideal for legacy or long-lifecycle designs requiring wide voltage tolerance, high noise immunity, and reliable performance. Its dual-supply capability and high output drive make it superior to single-supply encoders in mixed-voltage environments. While newer alternatives exist, the CD4532BM remains a trusted solution for industrial, automotive, and communication systems demanding proven reliability. Engineers should evaluate stock availability due to its Last Time Buy status.