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 |
|---|---|---|---|---|
| EM74AHCT2G14GW | ENERGYMATH | 74HCT2G14GW | dual inverter; Schmitt-trigger; TTL input | SOT363 |
| EM74AHCT2G14GV | ENERGYMATH | 74HCT2G14GV | dual inverter; Schmitt-trigger; TTL input | SOT23-6L |
| EM74AHCT2G07GW | ENERGYMATH | Buffers with open-drain outputs; TTL input | SOT363 | |
| EM74AHCT2G07GV | ENERGYMATH | Buffers with open-drain outputs; TTL input | SOT23-6L | |
| EM74AHCT2G06GW | ENERGYMATH | Inverters with open-drain outputs; TTL input | SOT363 | |
| EM74AHCT2G06GV | ENERGYMATH | Inverters with open-drain outputs; TTL input | SOT23-6L | |
| EM74AHCT2G04GW | ENERGYMATH | 74HCT2G04GW | dual inverter; TTL input | SOT363 |
| EM74AHCT2G04GV | ENERGYMATH | 74HCT2G04GV | dual inverter; TTL input | SOT23-6L |
| EM74AHCT2G04DRL | ENERGYMATH | dual inverter; TTL input | SOT563 | |
| EM74AHCT1G38GW | ENERGYMATH | 2-input NAND gate; open drain; TTL input | SOT353 | |
| EM74AHCT1G38GV | ENERGYMATH | 2-input NAND gate; open drain; TTL input | SOT23-5L | |
| EM74AHCT1G34GW | ENERGYMATH | RS1GT34XC5 | Single buffer; TTL input | SOT353 |
| EM74AHCT1G34GV | ENERGYMATH | RS1GT34XF5 | Single buffer; TTL input | SOT23-5L |
| EM74AHCT1G332GW | ENERGYMATH | Single 3-input OR gate; TTL input | SOT363 | |
| EM74AHCT1G332GV | ENERGYMATH | Single 3-input OR gate; TTL input | SOT23-6L | |
| EM74AHCT1G32GW | ENERGYMATH | 74AHCT1G32GW, SN74AHCT1G32DCK, RS1GT32XC5 | Single 2-input OR gate; TTL input | SOT353 |
| EM74AHCT1G32GV | ENERGYMATH | 74AHCT1G32GV, SN74AHCT1G32DBV, RS1GT32XF5 | Single 2-input OR gate; TTL input | SOT23-5L |
| EM74AHCT1G32DRL | ENERGYMATH | SN74AHCT1G32DRL, | Single 2-input OR gate; TTL input | SOT553 |
| EM74AHCT1G27GW | ENERGYMATH | Single 3-input NOR gate; TTL input | SOT363 | |
| EM74AHCT1G27GV | ENERGYMATH | Single 3-input NOR gate; TTL input | SOT23-6L |