74LS251_   数据手册 ( 数据表 )

Hitachi -> Renesas Electronics

Quadruple 2-input Positive NAND Gates

Fairchild Semiconductor

3-STATE 1-of-8 Line Data Selector/Multiplexer

Fairchild Semiconductor

3-STATE Data Selector/Multiplexer

ON Semiconductor

8-Input Multiplexer with 3-State Outputs

Fairchild Semiconductor

8-Bit Addressable Latches

Renesas Electronics

Quadruple 2-line-to-1-line Data Selectors / Multiplexers (with not inverted 3-state outputs)

Hitachi -> Renesas Electronics

Quadruple 2-input Positive NAND Gates

Hitachi -> Renesas Electronics

Quadruple 2-line-to-1-line Data Selectors/Multiplexers(with non inverted 3-state outputs)

Motorola => Freescale

QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS

Fairchild Semiconductor

8-Bit Addressable Latches