1. General description
The 74HC126; 74HCT126 is a quad buffer/line driver with 3-state outputs controlled by the output
enable inputs (nOE). A LOW on nOE causes the outputs to assume a high-impedance OFF-state.
Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to
voltages in excess of VCC.
2. Features and benefits
• Wide supply voltage range from 2.0 V to 6.0 V
• CMOS low power dissipation
• High noise immunity
• Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
• Complies with JEDEC standards:
• JESD8C (2.7 V to 3.6 V)
• JESD7A (2.0 V to 6.0 V)
• Input levels:
• For 74HC126: CMOS levels
• For 74HCT126: TTL levels
• ESD protection:
• HBM: ANSI/ESDA/Jedec JS-001 Class 2 exceeds 2000 V
• Specified from -40 °C to +85 °C and from -40 °C to +125 °C