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厂商:
74LS170  4 X 4 REGISTER FILE (With Open-Collector Output)
厂商: ETC[ETC] 查看供应商
74LS173  4-BIT D-TYPE REGISTERS WITH 3-STATE OUTPUTS
厂商: TI[Texas Instruments] 查看供应商
74LS174  LOW POWER SCHOTTKY
厂商: ONSEMI[ON Semiconductor] 查看供应商
74LS175  LOW POWER SCHOTTKY
厂商: ONSEMI[ON Semiconductor] 查看供应商
74LS181  4-Bit Arithmetic Logic Unit
厂商: FAIRCHILD[Fairchild Semiconductor] 查看供应商
74LS190  Synchronous Up/Down Decade Counters(single clock line)
厂商: HITACHI[Hitachi Semiconductor] 查看供应商
74LS191  Synchronous Up/Down 4-bit Binary Counters(single clock line)
厂商: HITACHI[Hitachi Semiconductor] 查看供应商
74LS294  PROGRAMMABLE FREQUENCY DIVIDERS/DIGITAL TIMERS
厂商: TI[Texas Instruments] 查看供应商
74LS295  4-BIT RIGHT-SHIFT LEFT-SHIFT REGISTERS WITH 3-STATE OUTPUTS
厂商: TI[Texas Instruments] 查看供应商
74LS298  LOW POWER SCHOTTKY
厂商: ONSEMI[ON Semiconductor] 查看供应商

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