产品介绍

74LCX139 Low voltage CMOS Dual 2 to 4 decoder / demultiplexer

The 74LCX139 is a low voltage CMOS dual 2 to 4 line Decoder / Demultiplexer fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology.

It is ideal for low power and high speed 3.3V applications; it can be interfaced to 5V signal environment for inputs.

The active low enable input can be used for gating or as a data input for demultiplexing applications. While the enable input is held high, all four outputs are high independently of the other inputs.

It has same speed performance at 3.3V than 5V AC/ACT family, combined with a lower power consumption.

All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.

技术特性

• 5V tolerant inputs
• High speed:
  • tPD = 6.2ns (Max) at VCC = 3V
• Power down protection on inputs and outputs
• Symmetrical output impedance:
  • |IOH| = IOL = 24mA (Min) at VCC= 3V
• PCI bus levels guaranteed at 24mA
• Balanced propagation delays:
  • tPLH tPHL
• Operating voltage range:
  • VCC(Opr) = 2.0V to 3.6V
• Pin and function compatible with 74 series 139
• Latch-up performance exceeds 500mA (JESD 17)
• ESD performance:
  • HBM > 2000V
  • (MIL STD 883 method 3015); MM > 200V

74LCX139 订购信息

DATASHEET