Electric Bugle: IC Diagrams

The legs of IC chips are numbered in counterclockwise order, starting from the notch. Thus, for a 14-leg IC, the upper left leg is numbered 1, the lower left leg 7, the lower right leg 8, and the upper right leg 14.

74LS00 quad 2-in NAND gate 74LS08 quad 2-in AND gate 74LS32 quad 2-in OR gate 74LS86 quad 2-in XOR gate		Pin 1: input to first gate Pin 2: input to first gate Pin 3: output of first gate Pin 4: input to second gate Pin 5: input to second gate Pin 6: output of second gate Pin 7: ground	Pin 14: +5 volts Pin 13: input to third gate Pin 12: input to third gate Pin 11: output of third gate Pin 10: input to fourth gate Pin 9: input to fourth gate Pin 8: output of fourth gate
74LS02 quad 2-in NOR gate		Pin 1: output of first gate Pin 2: input to first gate Pin 3: input to first gate Pin 4: output of second gate Pin 5: input to second gate Pin 6: input to second gate Pin 7: ground	Pin 14: +5 volts Pin 13: output of third gate Pin 12: input to third gate Pin 11: input to third gate Pin 10: output of fourth gate Pin 9: input to fourth gate Pin 8: input to fourth gate
74LS04 hex NOT gate		Pin 1: input to first gate Pin 2: output of first gate Pin 3: input to second gate Pin 4: output of second gate Pin 5: input to third gate Pin 6: output of third gate Pin 7: ground	Pin 14: +5 volts Pin 13: input to fourth gate Pin 12: output of fourth gate Pin 11: input to fifth gate Pin 10: output of fifth gate Pin 9: input to sixth gate Pin 8: output of sixth gate
74LS74 dual D flop-flop		Pin 1: when low, clear first bit to 0 Pin 2: value to be loaded into first bit Pin 3: on positive edge, load pin 2 to first bit Pin 4: when low, set first bit to 1 Pin 5: current value of first bit Pin 6: inverse value of first bit Pin 7: ground	Pin 14: +5 volts Pin 13: when low, clear second bit to 0 Pin 12: value to be loaded into second bit Pin 11: on positive edge, load pin 12 to second bit Pin 10: when low, set second bit to 1 Pin 9: current value of second bit Pin 8: inverse value of second bit
74LS76 dual J-K flop-flop		Pin 1: on positive edge, update first bit Pin 2: when low, set first bit to 1 Pin 3: when low, clear first bit to 0 Pin 4: J input for first flip-flop Pin 5: +5 volts Pin 6: on positive edge, update second bit Pin 7: when low, set second bit to 1 Pin 8: when low, clear second bit to 0	Pin 16: K input for first flip-flop Pin 15: current value of first bit Pin 14: inverse value of first bit Pin 13: ground Pin 12: K input for second flip-flop Pin 11: current value of second bit Pin 10: inverse value of second bit Pin 9: J input for second flip-flop
74LS161 four-bit counter		Pin 1: when low, clear value to 0 on clock edge Pin 2: on positive edge, update counter Pin 3: 1's bit of value to be loaded Pin 4: 2's bit of value to be loaded Pin 5: 4's bit of value to be loaded Pin 6: 8's bit of value to be loaded Pin 7: when high, enable counter update Pin 8: ground	Pin 16: +5 volts Pin 15: is high when current value is 15 Pin 14: 1's bit of current value Pin 13: 2's bit of current value Pin 12: 4's bit of current value Pin 11: 8's bit of current value Pin 10: when high, enable counter update Pin 9: when low, load pins 3 to 6 on clock edge