| 描述 | 计数器 IC Sync Up/Dn Bin Cntr |
|---|
【STMicroelectronics】M74HC194B1R,计数器移位寄存器 DIP-16 4BIT PISO REG
【STMicroelectronics】M74HC20B1R,IC GATE NAND DUAL 4INPUT 14-DIP
【STMicroelectronics】M74HC20M1R,门（与/非与/或/非或） Dual 4-Input NAND
【STMicroelectronics】M74HC20RM13TR,IC GATE NAND DUAL 4INPUT 14-SOIC
【STMicroelectronics】M74HC21B1R,门（与/非与/或/非或） Dual 4-Input AND
【STMicroelectronics】M74HC21M1R,门（与/非与/或/非或） Dual 4-Input AND
【STMicroelectronics】M74HC221B1R,IC MULTIVIBRATOR DUAL MONO 16DIP
【STMicroelectronics】M74HC221M1R,单稳态多谐振荡器 Dual Mono Multivibtr