Quad 2-input multiplexer; 3-state
Rev. 8 — 9 February 2021
Product data sheet
1. General description
The 74HC257; 74HCT257 is a quad 2-input multiplexer with 3-state outputs. 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.