onsemi MC74VHCT573A CMOS Latches

onsemi MC74VHCT573A CMOS Latches are high-speed CMOS octal latches with 3-state output fabricated with silicon gate CMOS technology. These latches achieve high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation. The MC74VHCT573A device can be used as a level converter for interfacing 3.3V to 5V, as it has full 5V CMOS level output swings. These MC74VHCT541A octal buffers operate at -55°C to 85°C temperature range and 4.5V to 5.5V DC supply voltage range. The MC74VHCT573A latches feature balanced propagation delays, and power-down protection is provided. These devices are Pb-free, halogen-free/BFR-free, and are RoHS-compliant

Features

  • High-speed:
    • tPD = 4.5ns (typical) at VCC = 5V (VHC)
    • tPD = 7.7ns (typical) at VCC = 5V (VHCT)
  • ICC = 4µA (maximum) at TA = 25°C low power dissipation
  • VNIH = VNIL = 28% high noise immunity
  • Power-down protection is provided
  • Balanced propagation delays
  • Designed for:
    • 2V to 5.5V (VHC)
    • 4.5V to 5.5V (VHCT)
  • -55°C to 85°C operating temperature range
  • Low noise:
    • VOLP = 1.2V (maximum) (VHC)
    • VOLP = 1.6V (maximum) (VHCT)
  • Pin and function compatible with other standard logic families
  • Latchup performance exceeds 100mA
  • ESD performance human body model > 2000V
  • 234 FETs or 58.5 equivalent gates chip complexity
  • Devices are Pb-free, halogen-free/BFR-free, and are RoHS-compliant
Published: 2025-06-04 | Updated: 2025-06-26