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 |
|---|---|---|---|---|
| EM74HCT11D | ENERGYMATH | 74HCT11D, SN74HCT11D, | Triple 3-input AND gate; TTL input | SOP-14L |
| EM74HCT10PW | ENERGYMATH | 74HCT10PW, SN74HCT10PW, | Triple 3-input NAND gate; TTL input | TSSOP14L |
| EM74HCT10D | ENERGYMATH | 74HCT10D, SN74HCT10D, | Triple 3-input NAND gate; TTL input | SOP-14L |
| EM74HCT08PW | ENERGYMATH | 74HCT08PW, SN74HCT08PW, RS4GT08XQ | Quad 2-input AND gate; TTL input | TSSOP14L |
| EM74HCT08D | ENERGYMATH | 74HCT08D, SN74HCT08D, RS4GT08XP | Quad 2-input AND gate; TTL input | SOP-14L |
| EM74HCT07PW | ENERGYMATH | Hex buffer; open-drain; TTL input | TSSOP14L | |
| EM74HCT07D | ENERGYMATH | Hex buffer; open-drain; TTL input | SOP-14L | |
| EM74HCT05PW | ENERGYMATH | 74HCT05PW, SN74HCT05PW, | Hex inverter; open-drain; TTL input | TSSOP14L |
| EM74HCT05D | ENERGYMATH | 74HCT05D, SN74HCT05D, | Hex inverter; open-drain; TTL input | SOP-14L |
| EM74HCT04PW | ENERGYMATH | 74HCT04PW, SN74HCT04PW, RS6GT04XQ | Hex inverter; TTL input | TSSOP14L |
| EM74HCT04D | ENERGYMATH | 74HCT04D, SN74HCT04D, RS6GT04XP | Hex inverter; TTL input | SOP-14L |
| EM74HCT03PW | ENERGYMATH | 74HCT03PW, SN74HCT03PW, | Quad 2-input NAND gate; open-drain; TTL input | TSSOP14L |
| EM74HCT03D | ENERGYMATH | 74HCT03D, SN74HCT03D, | Quad 2-input NAND gate; open-drain; TTL input | SOP-14L |
| EM74HCT02PW | ENERGYMATH | 74HCT02PW, SN74HCT02PW, | Quad 2-input NOR gate; TTL input | TSSOP14L |
| EM74HCT02D | ENERGYMATH | 74HCT02D, SN74HCT02D, | Quad 2-input NOR gate; TTL input | SOP-14L |
| EM74HCT00PW | ENERGYMATH | 74HCT00PW, SN74HCT00PW, RS4GT00XQ | Quad 2-input NAND gate; TTL input | TSSOP14L |
| EM74HCT00D | ENERGYMATH | 74HCT00D, SN74HCT00D, RS4GT00XP | Quad 2-input NAND gate; TTL input | SOP-14L |
| EM74HCS86PW | ENERGYMATH | SN74HCS86PW, | Quad 2-input EXCLUSIVE-OR gate; Schmitt trigger | TSSOP14L |
| EM74HCS86D | ENERGYMATH | SN74HCS86D, | Quad 2-input EXCLUSIVE-OR gate; Schmitt trigger | SOP-14L |
| EM74HCS74PW | ENERGYMATH | SN74HCS74PW, | Dual D-type flip-flop with set and reset; positive-edge trigger; Schmitt trigger | TSSOP14L |