74系列TTL芯片ALTIUM库AD原理图库（AD库）,74系列TTL芯片原理图封装库（AD库）,包含74全系列，共800多个封装，基本包含了所有74系列原理图封装，是Altium Designer的SCH封装库，.SchLib格式的，非常实用 Library Component Count : 825 Name Description ---------------------------------------------------------------------------------------------------- 7406 Hex Inverter with Open-Collector High-Voltage Output 7407 Hex Buffer/Driver with Open-Collector High-Voltage Output 74147 10-Line to 4-Line Priority Encoder 74148 8-Line to 3-Line Priority Encoder 74199 8-Bit Shift Register 7425 Dual 4-Input NOR Gate with Strobe 7428 Quad 2-Input NOR Gate 7439 Quad 2-Input Positive-NAND Buffer with Open-Collector Output 7445 BCD-to-Decimal Decoder/Driver 74F00 Quad 2-Input Positive-NAND Gate 74F02 Quad 2-Input NOR Gate 74F04 Hex Inverter 74F06 Hex Inverter with Open-Collector High-Voltage Output 74F07 Hex Buffer/Driver with Open-Collector High-Voltage Output 74F08 Quad 2-Input Positive-AND Gate 74F10 Triple 3-Input Positive-NAND Gate 74F109 Dual J-~K Positive-Edge-Triggered Flip Flop with Preset and Clear 74F109X2 Dual J-~K Positive-Edge-Triggered Flip Flop with Preset and Clear 74F11 Triple 3-Input Positive-AND Gate 74F112 Dual J-K Negative-Edge-Triggered Flip-Flop with Clear and Preset 74F112X2 Dual J-K Negative-Edge-Triggered Flip-Flop with Clear and Preset 74F113 Dual J-K Negative-Edge-Triggered Flip-Flop with Preset 74F113X2 Dual J-K Negative-Edge-Triggered Flip-Flop with Preset 74F125 Quad Bus Buffer Gate with 3-State Output 74F125X4 Quad Bus Buffer Gate with 3-State Output 74F126 Quad Bus Buffer Gate with 3-State Output 74F126X4 Quad Bus Buffer Gate with 3-State Outp