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74HCT253N Dual 4-input multiplexer; 3-state PHILIPS

74HCT253PW Dual 4-input multiplexer; 3-state PHILIPS

74HCT257D Quad 2-input multiplexer 3-state PHILIPS

74HCT257DB Quad 2-input multiplexer 3-state PHILIPS

74HCT257N Quad 2-input multiplexer 3-state PHILIPS

74HCT257PW Quad 2-input multiplexer 3-state PHILIPS

74HCT258 Quad 2-input multiplexer; 3-state; inverting PHILIPS

74HCT258D Quad 2-input multiplexer; 3-state; inverting PHILIPS

74HCT258N Quad 2-input multiplexer; 3-state; inverting PHILIPS

74HCT259 8-bit addressable latch PHILIPS

74HCT259 瑞斯特（RST）推出的74HCT259是一款8位可寻址锁存器，其功能丰富性远超传统锁存器，可灵活配置为四种截然不同的工作模式：可寻址锁存模式、存储器模式、3至8译码/解复用模式以及复位模式。该器件通过三个地址输入端（A0至A2）选择8个输出通道之一，并依据数据输入（D）及锁存使能（LE）信号控制被选中通道的输出状态。 RECTRON

74HCT259D 8-bit addressable latch PHILIPS

74HCT259DB 8-bit addressable latch PHILIPS

74HCT259N 8-bit addressable latch PHILIPS

74HCT259PW 8-bit addressable latch PHILIPS

74HCT27 Triple 3-input NOR gate PHILIPS

74HCT27 Triple 3-input NOR gate NXP

74HCT273 Octal D-type flip-flop with reset; positive-edge trigger PHILIPS

74HCT273D Octal D-type flip-flop with reset; positive-edge trigger PHILIPS

74HCT273DB Octal D-type flip-flop with reset; positive-edge trigger PHILIPS