74LS390   데이터시트

Fairchild Semiconductor

Dual 4-Bit Decade Counter

Motorola => Freescale

DUAL DECADE COUNTER; DUAL 4-STAGE BINARY COUNTER LOW POWER SCHOTTKY

Hitachi -> Renesas Electronics

8 Input Positive NAND Gate

Motorola => Freescale

QUAD 2-INPUT NOR BUFFER

ON Semiconductor

8-INPUT NAND GATE

Fairchild Semiconductor

Quad 2-Input OR Gate

Motorola => Freescale

QUAD 2-INPUT NAND BUFFER

Fairchild Semiconductor

Quad 2-Input OR Gate

Fairchild Semiconductor

8-Input NAND Gate

Hitachi -> Renesas Electronics

Quadruple 2-input Positive NAND Buffers(with Open Collector Outputs)

Hitachi -> Renesas Electronics

Quadruple 2-input Positive NAND Buffers