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 | 制造商 | 封装 | Pin2PIN | 参数 |
|---|---|---|---|---|
| EM74AHC541PW | ENERGYMATH | TSSOP-20L | 74AHC541PW, SN74AHC541PW, | Octal buffer/line driver; 3-state |
| EM74AHCT541D | ENERGYMATH | SOP-20L | 74AHCT541D, SN74AHCT541DW, | Octal buffer/line driver; 3-state; TTL-enabled |
| EM74AHCT541PW | ENERGYMATH | TSSOP-20L | 74AHCT541PW, SN74AHCT541PW, | Octal buffer/line driver; 3-state; TTL-enabled |
| EM74LVC86APW | ENERGYMATH | TSSOP14L | 74LVC86APW, SN74LVC86APW, RS4G86XQ | Quad 2-input EXCLUSIVE-OR gate |
| EM74LVC86AD | ENERGYMATH | SOP-14L | 74LVC86AD, SN74LVC86AD, RS4G86XP | Quad 2-input EXCLUSIVE-OR gate |
| EM74LVC74APW | ENERGYMATH | TSSOP14L | 74LVC74APW, SN74LVC74APW, RS74HC74XQ | Dual D-type flip-flop with set and reset; positive-edge trigger |
| EM74LVC74AD | ENERGYMATH | SOP-14L | 74LVC74AD, SN74LVC74AD, RS74HC74XP | Dual D-type flip-flop with set and reset; positive-edge trigger |
| EM74LVC32APW | ENERGYMATH | TSSOP14L | 74LVC32APW, SN74LVC32APW, RS4G32XQ | Quad 2-input OR gate |
| EM74LVC32AD | ENERGYMATH | SOP-14L | 74LVC32AD, SN74LVC32AD, RS4G32XP | Quad 2-input OR gate |
| EM74LVC2GU04GW | ENERGYMATH | SOT363 | 74LVC2GU04GW, SN74LVC2GU04DCK, | Dual unbuffered inverters |
| EM74LVC2GU04GV | ENERGYMATH | SOT23-6L | 74LVC2GU04GV, SN74LVC2GU04DBV, | Dual unbuffered inverters |
| EM74LVC2GU04GS | ENERGYMATH | DFN1x1-6L | 74LVC2GU04GS, SN74LVC2GU04DSF, | Dual unbuffered inverters |
| EM74LVC2GU04GM | ENERGYMATH | DFN1x1.45-6L | 74LVC2GU04GM, SN74LVC2GU04DRY, | Dual unbuffered inverters |
| EM74LVC2G34GW | ENERGYMATH | SOT363 | 74LVC2G34GW, SN74LVC2G34DCK, RS2G34XC6 | Dual buffer gate |
| EM74LVC2G34GV | ENERGYMATH | SOT23-6L | 74LVC2G34GV, SN74LVC2G34DBV, RS2G34XH6 | Dual buffer gate |
| EM74LVC2G34GS | ENERGYMATH | DFN1x1-6L | 74LVC2G34GS, SN74LVC2G34DSF, | Dual buffer gate |
| EM74LVC2G34GM | ENERGYMATH | DFN1x1.45-6L | 74LVC2G34GM, SN74LVC2G34DRY, | Dual buffer gate |
| EM74LVC2G17GW | ENERGYMATH | SOT363 | 74LVC2G17GW, SN74LVC2G17DCK, RS2G17XC6 | dual buffer; Schmitt-trigger |
| EM74LVC2G17GV | ENERGYMATH | SOT23-6L | 74LVC2G17GV, SN74LVC2G17DBV, RS2G17XH6 | dual buffer; Schmitt-trigger |
| EM74LVC2G17GS | ENERGYMATH | DFN1x1-6L | 74LVC2G17GS, SN74LVC2G17DSF, | dual buffer; Schmitt-trigger |