TOSHIBA TC74VHCT125AFK(E,K)

The TC74VHCT125A/126A are high speed CMOS QUAD BUS BUFFERs fabricated with silicon gate C²MOS technology. They achieve the high speed operation similar to equivalent Bipolar Shottky TTL while maintaining the CMOS low power dissipation. The TC74VHCT125A requires the 3-state control input MR(overline) to be set high to place the output into the high impedance state, whereas the TC74VHCT126A requires the control input @ to be set low to place the output into high impedance. The input voltage are compatible with TTL output voltage. This device may be used as a level converter for interfacing 3.3 V to 5 V system. Input protection and output circuit ensure that 0 to 5.5 V can be applied to the input and output (Note) pins without regard to the supply voltage. There structure prevents device detsruction due to mismatched supply and input/output voltages such as battery back up, hot board insertion, etc.

• High speed: tpd = 3.8 ns (typ.) at VCC = 5 V
• Low power dissipation: ICC = 4 μA (max) at Ta = 25 ℃
• Compatible with TTL inputs: VIL = 0.8 V (max), VIH = 2.0 V (min)
• Power down protection is provided on all inputs and outputs.
• Balanced propagation delays: tpLH ≃ tpHL
• Low noise: VOLP = 0.8 V (max)
• Pin and function compatible with the 74 series (74AC/HC/F/ALS/LS etc.) 125/126 types.