74LS221N   データシート

Motorola => Freescale

DUAL MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS

ON Semiconductor

Dual Monostable Multivibrators with Schmitt-Trigger Inputs

Motorola => Freescale

DUAL 4-INPUT AND GATE

Motorola => Freescale

DUAL 4-INPUT NAND GATE LOW POWER SCHOTTKY

Unspecified

TRIPLE 3-INPUT NOR GATE

Unspecified

DUAL 4-INPUT POSITIVE AND GATE

Hitachi -> Renesas Electronics

Triple 3-input Positive NOR Gates

Motorola => Freescale

QUAD 2-INPUT NOR BUFFER

Fairchild Semiconductor

Octal 3-STATE Buffer/Line Driver/Line Receiver

Fairchild Semiconductor

Quad 2-Input Exclusive-NOR Gate with Open-Collector Outputs

ON Semiconductor

Octal D Flip-Flop with Clear