TC74LVX138F

The TC74LVX138F is one member of the TC74LVX138 series.The TC74LVX138 is a high speed CMOS 3-TO-8 line decoder fabricated with silicon gate C2MOS technology.Designed for use in 3.3 Volt systems, it achieves high speed operation while maintaining the CMOS low power dissipation.This device is suitable for low voltage and battery operated systems.When the device is enabled, 3 binary select inputs (A, B and C) determine which one of the outputs (YO-Y7) will go low.When enable input G1 is held low or either G2A or G2B is held high, decoding function is inhibited and all outputs go high.

Features of the TC74LVX138F are:(1)high speed:tpd=5.5 ns (Typ)(Vcc=3.3V); (2)low power dissipation:ICC=4A (Max)(Ta=25); (3)input voltage level:VIL=0.8V (Max.) (Vcc=3V),VIH=2.0V (Min.) (Vcc=3 V); (4)power down protection is provided on all inputs; (5)balanced propagation delays:tpLHtpHL; (6)low noise:VOLP=0.5V (Max.); (7)pin and function compatible with 74HC138.An input protection circuit ensures that 0 to 7V can be applied to the input pins without regard to the supply voltage.This device can be used to interface 5V to 3V systems and two supply systems such as battery back up. This circuit prevents device destruction due to mismatched supply and input voltages.

The absolute maximum ratings of the TC74LVX138F can be summarized as:(1)supply voltage range:-0.5 to 7.0V;(2)storage temperature:-65 to +150;(3)DC input voltage:-0.5 to 7.0V;(4)input diode current:-20 mA;(5)DC output voltage:-0.5 to Vcc+0.5V;(6)power dissipation:180mW.The products described in this document are designed, developed and manufactured as contemplated for general use, including without limitation, ordinary industrial use, general office use, personal use, and household use, but are not designed, developed and manufactured as contemplated (1) for any use that includes fatal risks or dangers that, unless extremely high safety is secured, could have a serious effect to the public, and could lead directly to death, personal injury, severe physical damage or other loss (i.e., nuclear reaction control in nuclear facility, aircraft flight control, air traffic control, mass transport control, medical life support system, missile launch control in weapon system), or (2) for any use where chance of failure of the TC74LVX138F is intolerable (i.e., submersible repeater and artificial satellite).