Texas Instruments_CD74HC85PW
original

Texas Instruments
CD74HC85PW

692-CD74HC85PW
PDF Datasheet
4-Bit Magnitude Comparator IC, 74HC, CMOS, TSSOP, Gold Plating

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ISO9001
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Tech Specifications

Package/Case
TSSOP
Contact Plating
Gold
High Level Output Current
-5.2mA
Lead Free
Lead Free
Low Level Output Current
5.2mA
Max Operating Temperature
125°C
Min Operating Temperature
-55°C
Max Supply Current
8uA
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CD74HC85PW Description

CD74HC85PW Description

The CD74HC85PW from Texas Instruments is a 4-bit magnitude comparator belonging to the 74HC series, designed for high-speed digital logic applications. This surface-mount IC operates within a 2V to 6V supply range, making it versatile for both low-voltage and standard 5V systems. It features active-high outputs (A<B, A=B, A>B) with a maximum propagation delay of 33ns at 6V and 50pF load, ensuring rapid decision-making in comparison tasks. The device is RoHS3 compliant and REACH unaffected, meeting modern environmental standards. Packaged in a 16-pin TSSOP tube, it is optimized for space-constrained PCB designs while maintaining robust performance.

CD74HC85PW Features

  • High-Speed Operation: 33ns propagation delay at 6V enables efficient real-time comparison.
  • Low Power Consumption: Quiescent current of 8 µA minimizes energy usage in idle states.
  • Wide Voltage Range: 2V–6V supply compatibility supports mixed-voltage systems.
  • Balanced Output Drive: 5.2mA sink/source current ensures reliable signal integrity.
  • Cascadable Design: Expandable for multi-bit comparisons (e.g., 8-bit, 16-bit) via daisy-chaining.
  • Robust Packaging: MSL 1 (Unlimited) moisture sensitivity allows extended shelf life and handling flexibility.

CD74HC85PW Applications

  • Digital Arithmetic Units: Ideal for ALUs, CPUs, and microcontrollers requiring magnitude checks.
  • Process Control Systems: Used in threshold detection (e.g., sensor data validation).
  • Test Equipment: Enables fast binary comparison in oscilloscopes or logic analyzers.
  • Automotive Electronics: Suitable for battery monitoring due to low-voltage operation.
  • Consumer Electronics: Integrates into display drivers for brightness/contrast adjustments.

Conclusion of CD74HC85PW

The CD74HC85PW stands out for its speed, low power, and cascading capability, making it superior to basic comparators in high-performance digital systems. Its wide supply range and TSSOP packaging cater to modern design constraints, while TI’s reliability ensures long-term stability. Whether for embedded systems, industrial automation, or precision instrumentation, this IC delivers efficient, accurate magnitude comparison with minimal overhead.

FAQ

What voltage specification is listed for CD74HC85PW?
The listed voltage-related specification for CD74HC85PW is 6V.
Does CD74HC85PW have quantity-based pricing?
What is CD74HC85PW?
What package or case is CD74HC85PW available in?
Is CD74HC85PW currently in stock?
Availability (In Stock : 78 )
Quantity Unit Price Ext. Price
1+ $1.01200 $1.01
10+ $0.73128 $7.31
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