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HD74LS21FPEL 数据手册 ( 数据表 )

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Renesas Electronics

HD74LS21FPEL

Dual 4-input Positive AND Gates

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Match & Start : HD74LS21FPEL

Renesas Electronics

HD74LS248

BCD-to-Seven-Segment Decoder / Driver (internal pull-up outputs)

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Hitachi -> Renesas Electronics

HD74LS283

4-bit Binary Full Adder

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Renesas Electronics

HD74LS243

Quadruple Bus Transceivers (with three-state outputs)

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Hitachi -> Renesas Electronics

HD74LS251

1 of 8 Data Selector / Multiplexer (with strobe and three-state outputs)

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Renesas Electronics

HD74LS293

4-bit Binary Counter

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Renesas Electronics

HD74LS221

Dual Monostable Multivibrators

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Renesas Electronics

HD74LS273

Octal D-type Positive-edge-triggered Flip-Flops (with Clear)

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Renesas Electronics

HD74LS240

Octal Buffers / Line Drivers / Line Receivers (inverted three-state outputs)

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Renesas Electronics

HD74LS258

Quadruple 2-line-to-1-line Data Selectors / Multiplexers (with three-state outputs)

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Hitachi -> Renesas Electronics

HD74LS279

Quadruple S-R Latches

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