Rochester Electronics
64-Bit TRI-STATE Random Access Read/Write Memory
Fairchild Semiconductor
Quad 2-Input NAND Gate . Quad 2-Input NOR Gate . Hex Inverter
Fairchild Semiconductor
Quad 2-Input NAND Gate . Quad 2-Input NOR Gate . Hex Inverter
Fairchild Semiconductor
4-Digit Counters with Multiplexed 7-Segment Output Drivers
Fairchild Semiconductor
4-Digit Expandable Segment Display Controller
Fairchild Semiconductor
4-Digit Counters with Multiplexed 7-Segment Output Drivers
National ->Texas Instruments
16-Key Encoder / 20-Key Encoder