CD74HC85MG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments CD74HC85MG4 is a cascadable 4-bit magnitude comparator with three comparison outputs (A>B, A=B, A<B). Operates with 50 pF load capacitance in a 16-pin SOIC package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC85MG4 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 cascadable magnitude comparator enabling comparison of wider data words by chaining multiple devices
- Three dedicated outputs (A>B, A=B, A<B) for direct logic-level comparison results without additional gates
- 16-pin SOIC package with 50 pF load capacitance rating and RoHS-compliant e4 JEDEC qualification
Applications
The CD74HC85MG4 is used in digital control systems and microprocessor-based designs for real-time 4-bit data comparison, such as address decoding and limit checking in embedded applications. Its cascadable architecture allows expansion to 8-bit or wider comparisons, making it practical in sorting networks, priority encoders, and industrial programmable logic designs.
Specifications
| YTEOL | 0 |
| 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 |
| Number of Bits | 4 |
| Number of Functions | 1 |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 50mA |
| Propagation Delay (tpd) | 295ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| 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 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC85MG4:
Frequently Asked Questions
How can CD74HC85MG4 be cascaded to compare 8-bit values in a digital control system?
Two CD74HC85MG4 devices can be cascaded by connecting the cascading inputs (A>B, A=B, A<B) of the high-order unit to the outputs of the low-order unit, allowing 8-bit magnitude comparison with three result outputs at up to 50 pF load capacitance per stage.
What are the three comparison outputs of CD74HC85MG4 and how do they simplify circuit design?
The CD74HC85MG4 provides three TRUE-polarity outputs: A greater than B, A equal to B, and A less than B. This eliminates the need for external combinational logic in comparator applications, directly driving downstream decision circuits with valid logic levels.
In which embedded or industrial applications does the CD74HC85MG4 offer a practical advantage?
The CD74HC85MG4 suits applications such as address range decoding in microprocessor systems, alarm threshold checking in industrial controllers, and data sorting in FPGA support logic — anywhere 4-bit numeric comparison with cascadable expansion to wider word widths is needed.
What load capacitance rating does the CD74HC85MG4 support, and how does it affect timing?
The CD74HC85MG4 is rated for a 50 pF load capacitance on its outputs, which is the standard HC-family test condition. Higher capacitive loads beyond 50 pF will increase propagation delay, so PCB trace lengths and fanout must be managed accordingly in timing-critical designs.
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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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