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 |
|---|---|---|---|---|
| EM74HCS03D | ENERGYMATH | SN74HCS03D, | Quad 2-input NAND gate; open-drain Schmitt trigger | SOP-14L |
| EM74HCS02PW | ENERGYMATH | SN74HCS02PW, | Quad 2-input NOR gate Schmitt trigger | TSSOP14L |
| EM74HCS02D | ENERGYMATH | Quad 2-input NOR gate Schmitt trigger | SOP-14L | |
| EM74HCS00PW | ENERGYMATH | SN74HCS00PW, | Quad 2-input NAND gate Schmitt trigger | TSSOP14L |
| EM74HCS00D | ENERGYMATH | Quad 2-input NAND gate Schmitt trigger | SOP-14L | |
| EM74HC86PW | ENERGYMATH | 74HC86PW, SN74HC86PW, | Quad 2-input EXCLUSIVE-OR gate | TSSOP14L |
| EM74HC86D | ENERGYMATH | 74HC86D, SN74HC86D, | Quad 2-input EXCLUSIVE-OR gate | SOP-14L |
| EM74HC7541PW | ENERGYMATH | 74HC7541PW, SN74HCS541PW, | Octal Schmitt trigger buffer/line driver; 3-state | TSSOP20L |
| EM74HC7541D | ENERGYMATH | 74HC7541D, SN74HCS541DW, | Octal Schmitt trigger buffer/line driver; 3-state | SOP-20L |
| EM74HC7540PW | ENERGYMATH | 74HC7540PW, SN74HCS540PW, | Octal Schmitt trigger buffer/line driver; 3-state; inverting | TSSOP20L |
| EM74HC7540D | ENERGYMATH | 74HC7540D, SN74HCS540DW, | Octal Schmitt trigger buffer/line driver; 3-state; inverting | SOP-20L |
| EM74HC74PW | ENERGYMATH | 74HC74PW, SN74HC74PW, | Dual D-type flip-flop with set and reset; positive-edge trigger; TTL enabled | TSSOP14L |
| EM74HC74D | ENERGYMATH | 74HC74D, SN74HC74D, | Dual D-type flip-flop with set and reset; positive-edge trigger; TTL enabled | SOP-14L |
| EM74HC7266PW | ENERGYMATH | Quad 2-Input XNOR Gates | TSSOP14L | |
| EM74HC7266D | ENERGYMATH | SN74HC7266D, | Quad 2-Input XNOR Gates | SOP-14L |
| EM74HC7032PW | ENERGYMATH | Quad 2-Input OR Gates with Schmitt-Trigger Inputs | TSSOP14L | |
| EM74HC7032D | ENERGYMATH | SN74HC7032D, | Quad 2-Input OR Gates with Schmitt-Trigger Inputs | SOP-14L |
| EM74HC7002PW | ENERGYMATH | SN74HC7002PW, | Quad 2-Input NOR Gates with Schmitt-Trigger Inputs | TSSOP14L |
| EM74HC7002D | ENERGYMATH | SN74HC7002D, | Quad 2-Input NOR Gates with Schmitt-Trigger Inputs | SOP-14L |
| EM74HC7001PW | ENERGYMATH | Quad 2-Input AND Gates with Schmitt-Trigger Inputs | TSSOP14L |