CD74HC85PWR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The CD74HC85PWR is a high-speed CMOS 4-bit magnitude comparator from Texas Instruments with three comparison outputs (A>B, A=B, A<B) and cascadable architecture for wider word lengths. It operates with 50 pF load capacitance in an SOIC-16 package. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD74HC85PWR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4-bit magnitude comparator with cascadable inputs enabling expansion to 8-bit, 12-bit, or wider word comparisons without additional glue logic
- Three comparison outputs (A greater than B, A equal B, A less than B) for direct use in sorting, range-checking, and control logic
- High-speed HC/UH CMOS family with 50 pF load capacitance rating, providing fast propagation in 2 V to 6 V logic systems
Applications
The CD74HC85PWR is used in digital control systems requiring real-time magnitude comparison of 4-bit data words, such as address decoding, threshold detection, and priority arbitration circuits. Its cascadable design allows engineers to chain multiple devices for 8-bit or 16-bit comparisons in PLCs, microcontroller peripherals, and embedded digital logic designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | CASCADABLE, THREE POSSIBLE OUTPUTS ARE A B |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | MAGNITUDE COMPARATOR |
| Max I(ol) | 0.0052A |
| Number of Bits | 4 |
| Number of Functions | 4 |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 42ns |
| Propagation Delay (tpd) | 295ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC85PWR:
Frequently Asked Questions
How can multiple CD74HC85PWR devices be cascaded for 8-bit magnitude comparison?
Two CD74HC85PWR devices can be cascaded by connecting the three cascade inputs (A>B, A=B, A<B) of the higher-order stage to the corresponding outputs of the lower-order stage. This expands comparison to 8-bit words using only 2 ICs, each handling 4 bits, with results propagating correctly through the 3-output cascadable interface.
What output sink current does the CD74HC85PWR provide and which loads can it drive directly?
The CD74HC85PWR has a maximum output sink current (I(ol)) of 5.2 mA, which is sufficient to directly drive standard HC-family CMOS logic inputs and small LED indicators in status display circuits. For higher-current loads, a buffer or transistor stage is recommended to avoid exceeding the device's drive capability.
In which industrial monitoring scenario does the CD74HC85PWR provide a cost-effective solution?
In temperature or pressure monitoring systems using 4-bit ADCs, the CD74HC85PWR compares sensor output against a 4-bit threshold value to trigger alarms or control outputs. Its three comparison outputs directly interface with alarm logic, eliminating the need for a microcontroller in simple threshold detection tasks and reducing system cost.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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