7485

• Number of bits: 4-bit comparator
• Number of pins: 16 pins
• Supply voltage:
  • TTL version: 4.75 V – 5.25 V (typical 5 V)
  • CMOS version: 2 V – 6 V
• Outputs: 3 comparison outputs (A>B, A=B, A<B)
• Propagation delay: ~13 ns to 35 ns (typical)
• Input logic levels (TTL):
  • VIH ≥ 2 V
  • VIL ≤ 0.8 V
• Output current:
  • High: about −0.4 mA to −1 mA
  • Low: up to 16–24 mA
• Power dissipation: ~60 mW typical
• Operating temperature:
  • 0 °C to 70 °C (standard TTL)
• Pin configuration (16-pin)
• A inputs: A0–A3
• B inputs: B0–B3
• Cascade inputs: IA<B, IA=B, IA>B
• Outputs: QA<B, QA=B, QA>B
• VCC: pin 16
• GND: pin 8

• Compares two 4-bit binary numbers directly
• Can be cascaded to compare more than 4 bits
• TTL-compatible inputs and outputs
• High-speed logic operation (~35 MHz typical)

Applications

• Digital comparators and ALU circuits
• Sorting and control logic
• Microprocessor/microcontroller systems
• Digital measurement systems