CD74HC85PWR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Binary Comparator
• Characteristics: High-Speed, CMOS Logic, 4-Bit Magnitude Comparator
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: The CD74HC85PWR is a 4-bit magnitude comparator IC that compares two 4-bit binary numbers and determines their relative magnitudes.
• Packaging/Quantity: Available in reels of 2500 pieces.

Specifications

• Supply Voltage: 2V to 6V
• Logic Family: HC
• Number of Bits: 4
• Propagation Delay: 11 ns (typical)
• Operating Temperature Range: -40°C to +85°C
• Input Current: ±1µA (maximum)
• Output Current: ±25mA (maximum)

Detailed Pin Configuration

The CD74HC85PWR has a total of 16 pins. Here is the detailed pin configuration:

1. A0: Input A, Bit 0
2. A1: Input A, Bit 1
3. A2: Input A, Bit 2
4. A3: Input A, Bit 3
5. B0: Input B, Bit 0
6. B1: Input B, Bit 1
7. B2: Input B, Bit 2
8. B3: Input B, Bit 3
9. GND: Ground
10. LT: Less Than Output
11. EQ: Equal Output
12. GT: Greater Than Output
13. VCC: Supply Voltage
14. NC: No Connection
15. NC: No Connection
16. NC: No Connection

Functional Features

The CD74HC85PWR offers the following functional features:

• High-speed operation, making it suitable for time-critical applications.
• CMOS logic technology ensures low power consumption and compatibility with a wide range of devices.
• 4-bit magnitude comparison capability allows for comparing two 4-bit binary numbers efficiently.
• Outputs indicate whether the first number is less than, equal to, or greater than the second number.

Advantages and Disadvantages

Advantages of CD74HC85PWR:

• Fast operation speed enables quick comparison of binary numbers.
• Low power consumption due to CMOS technology.
• Compact TSSOP package saves board space.
• Wide supply voltage range allows for flexibility in various applications.

Disadvantages of CD74HC85PWR:

• Limited to 4-bit magnitude comparison, not suitable for larger bit sizes.
• May require additional external components for specific applications.

Working Principles

The CD74HC85PWR works based on the comparison of individual bits of two 4-bit binary numbers. It compares corresponding bits from both inputs (A and B) and determines their relative magnitudes. The outputs LT, EQ, and GT indicate whether the first number is less than, equal to, or greater than the second number, respectively.

Detailed Application Field Plans

The CD74HC85PWR can be used in various applications that involve binary number comparison. Some potential application fields include:

1. Digital signal processing systems
2. Arithmetic logic units (ALUs)
3. Microcontrollers and microprocessors
4. Data encryption and decryption circuits
5. Communication systems
6. Industrial automation

Detailed and Complete Alternative Models

Here are some alternative models that offer similar functionality to CD74HC85PWR:

1. SN74HC85: Similar 4-bit magnitude comparator IC from Texas Instruments.
2. MC14585: 4-bit magnitude comparator IC from ON Semiconductor.
3. CD74HCT85: 4-bit magnitude comparator IC with TTL logic compatibility from Texas Instruments.

These alternative models can be considered based on specific requirements and availability in the market.

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