DM74LS221MX   데이터시트

Fairchild Semiconductor

Dual Non-Retriggerable One-Shot with Clear and Complementary Outputs

Fairchild Semiconductor

Quad 2-Input NOR Buffer

Fairchild Semiconductor

Dual 4-Input NAND Gate

Fairchild Semiconductor

Triple 3-Input NOR Gate

Fairchild Semiconductor

8-Input Universal Shift/Storage Register

Fairchild Semiconductor

Dual 4-Input NAND Gate

National ->Texas Instruments

BCD TO 7-SEGMENT DECODER (with 2kΩ Pull-Up Resistors)

Fairchild Semiconductor

Quadruple Bus Transceiver

Fairchild Semiconductor

Triple 3-Input NOR Gate

Fairchild Semiconductor

Octal 3-STATE Buffer/Line Driver/Line Receiver