TC74VHC257

The TC74VHC257 is an advanced high speed CMOS MULTIPLEXER fabricated with silicon gate C2MOS technology.They achieve the high speed operation similar to equivalent bipolar schottky TTL while maintaining the CMOS low power dissipation.

Features of the The TC74VHC257 are:(1)high speed:tpd=3.6ns(typ.)at Vcc=5V; (2)low power dissipation:Icc=4A(Max.)at Ta=25; (3)power down protection is provided on all inputs; (4)balabced propagation delays :tplhtphl; (5)wide operating voltage range:Vcc(opr)=2V~5.5V; (7)pin and function compatible with 74ALS257;(8)Low noise:Volp=0.8V(Max.).

The absolute maximum ratings of the The TC74VHC257 can be summarized as:(1)supply voltage range:-0.5~7.0V; (2)dc input voltage:-0.5~7.0V; (3)dc output voltage:-0.5~Vcc+0.5V; (4)input diode current:-20mA; (5)output diode current:±20mA; (6)dc output current:±25mA; (7)dc Vcc/ground current:±50mA; (8)power dissipation :180mW; (9)storage temperature:-65~150.If you want to know more information such as the electrical characteristics of TC74VHC257, please download the datasheet in www.seekic.com or www.chinaicmart.com.