TC74VHCT08AF

The TC74VHCT08AF is a kind of advanced high speed CMOS 2-input and gate fabricated with sillicon gate C2MOS technology. It gains the high speed operation similar to equivalent bipolar schottky TTL when keeping the CMOS low power dissipation. The device may be used as a level converter for interfacing 3.3 V to 5 V system. The input voltage is compatible with TTL output voltage. Input protection and output circuit ensure that 0 to 5.5V can be applied to the input and output pins without regard to the supply voltage.

There are some features of TC74VHCT08AF as follows: (1) high speed: tpd=5.0ns(typ) at VCC=5V; (2)low power dissipation: ICC=2uA(max) at Ta=25; (3)compatible with TTL outputs: VIL=0.8V(max) and VIH=2.0 V min;(4)power down protection is provided on all inputs and outputs; (5)balanced propagation delays: tpLHtpHL; (6)low noise: VOLP=0.8V(max); (7)pin and function compatible with the 74 series (74AC/HC/F/ALS/LS) 08 type.

The absolute maximum ratings of TC74VHCT08AF  can be summarized as: (1)supply voltage range, VCC:-0.5V to 7.0V; (2)DC input voltage, VIN:-0.5V to 7.0V; (3)DC output voltage, VOUT:-0.5V to 7.0V or -0.5 to VCC+0.5V; (4)input diode current, IKK:-20mA; (5)output diode current, IOK: ±20mA;(6)DC output current, IOUT: ±25mA; (7)DC Vcc/ground current, ICC:±50mA; (8)power dissipation: 180mW; (9)storage temperature:-65 to 150. Then is about the recommeded operating conditions: (1)supply voltage, VCC: 4.5V to 5.5V; (2)input voltage, VIN: 0V to 5.5V; (3)output voltage, VOUT: 0V to 5.5V or 0 to VCCV; (4)operating temperatur e:-40 to 85; (5)input rise and fall time, dt/dV: 0 to 20ns/V.