74HC251D,653

74HC251D,653 is an 8bit multiplexer with eight binary inputs (I0 to I7), three select inputs (S0 to S2) and an output enable input (active-low OE). The select inputs select one of the eight binary inputs and route it to the complementary outputs (Y and active-low Y). A HIGH on active-low OE causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC. It features ESD protection (HBM JESD22-A114F exceeds 2000V, MM JESD22-A115-A exceeds 200V). It complies with JEDEC standards (JESD8C (2.7V to 3.6V), JESD7A (2.0V to 6.0V).

• Wide supply voltage range from 2.0V to 6.0V
• CMOS low power dissipation, high noise immunity
• Latch-up performance exceeds 100mA per JESD 78 Class II Level B
• CMOS input level, input leakage current is ±0.1μA max at (VI = VCC or GND; VCC = 6.0V, 25°C)
• OFF-state output current is ±0.5μA max at (VI = VIH or VIL; VO = VCC or GND; VCC = 6V, 25°C)
• Supply current is 8.0μA maximum at (VI = VCC or GND; IO = 0 A; VCC = 6V, 25°C)
• Propagation delay is 50ns typical at (VCC = 2.0V, 25°C)
• Transition time is 19ns typical at (VCC = 2V, 25°C)
• Operating temperature range from -40°C to +125°C
• SO16 package

警告

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