精品国产99久久久久久www_亚洲精彩视频在线观看的_性欧美婬妇ⅹxxx视频_里番肉工口全彩老师_a天堂最新在线观看_精品国产在天天在线观看_免费看那种视频_樱桃电视剧全集播放_成人性视频免费看的鲁片_中国伦理影院

DESCRIPTION

The M74HC139 is an high speed CMOS QUAD 2-INPUT NAND GATE fabricated with silicon gate C2MOS technology.

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.

All inputs are equipped with protection circuits against static discharge and transient excess voltage.

■ HIGH SPEED: tPD = 13ns (TYP.) at VCC = 6V

■ LOW POWER DISSIPATION: ICC = 4μA(MAX.) at TA=25°C

■ HIGH NOISE IMMUNITY: VNIH = VNIL = 28 VCC (MIN.)

■ SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 4mA (MIN)

■ BALANCED PROPAGATION DELAYS: tPLH ? tPHL

■ WIDE OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V

■ PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 139