Logic IC (Logic Integrated Circuit) 内部由海量的晶体管组成精密的“电子开关网络”。这些开关根据预设的规则（真值表）导通或闭合，接收到输入的电平信号后，立刻输出对应的结果，以此实现加法、比较、判断等功能。逻辑芯片是半导体产业中市场规模最大的一类，2025年全球销售额已达到3019亿美元。
| 型号 | 品牌 | Pin2PIN | 参数 | 封装 |
|---|---|---|---|---|
| EM74AHCT1G240GW | ENERGYMATH | Single inverting buffer/line driver; 3-state; TTL input | SOT353 | |
| EM74AHCT1G240GV | ENERGYMATH | Single inverting buffer/line driver; 3-state; TTL input | SOT23-5L | |
| EM74AHCT1G17GW | ENERGYMATH | 74AHCT1G17GW | Single Schmitt trigger buffer; TTL input | SOT353 |
| EM74AHCT1G17GV | ENERGYMATH | 74AHCT1G17GV | Single Schmitt trigger buffer; TTL input | SOT23-5L |
| EM74AHCT1G17DRL | ENERGYMATH | Single Schmitt trigger buffer; TTL input | SOT553 | |
| EM74AHCT1G16GW | ENERGYMATH | Single buffer; TTL input | SOT353 | |
| EM74AHCT1G16GV | ENERGYMATH | Single buffer; TTL input | SOT23-5L | |
| EM74AHCT1G16DRL | ENERGYMATH | Single buffer; TTL input | SOT553 | |
| EM74AHCT1G14GW | ENERGYMATH | 74AHCT1G14GW, SN74AHCT1G14DCK, RS1GT14XC5 | single inverter; Schmitt-trigger; TTL input | SOT353 |
| EM74AHCT1G14GV | ENERGYMATH | 74AHCT1G14GV, SN74AHCT1G14DBV, RS1GT14XF5 | single inverter; Schmitt-trigger; TTL input | SOT23-5L |
| EM74AHCT1G14DRL | ENERGYMATH | SN74AHCT1G14DRL, | single inverter; Schmitt-trigger; TTL input | SOT553 |
| EM74AHCT1G126GW | ENERGYMATH | 74AHCT1G126GW, SN74AHCT1G126DCK, RS1GT126XC5 | single buffer/line driver; TTL input | SOT353 |
| EM74AHCT1G126GV | ENERGYMATH | 74AHCT1G126GV, SN74AHCT1G126DBV, RS1GT126XF5 | single buffer/line driver; TTL input | SOT23-5L |
| EM74AHCT1G126DRL | ENERGYMATH | SN74AHCT1G126DRL, | single buffer/line driver; TTL input | SOT553 |
| EM74AHCT1G125GW | ENERGYMATH | 74AHCT1G125GW, SN74AHCT1G125DCK, RS1GT125XC5 | single buffer/line driver; TTL input | SOT353 |
| EM74AHCT1G125GV | ENERGYMATH | 74AHCT1G125GV, SN74AHCT1G125DBV, RS1GT125XF5 | single buffer/line driver; TTL input | SOT23-5L |
| EM74AHCT1G125DRL | ENERGYMATH | SN74AHCT1G125DRL, | single buffer/line driver; TTL input | SOT553 |
| EM74AHCT1G11GW | ENERGYMATH | Single 3-input AND gate; TTL input | SOT363 | |
| EM74AHCT1G11GV | ENERGYMATH | Single 3-input AND gate; TTL input | SOT23-6L | |
| EM74AHCT1G10GW | ENERGYMATH | Single 3-input NAND gate; TTL input | SOT363 |