74184 BCD-TO-BINARY CONVERTER
74193 PRESETTABLE SYNCHRONOUS 4-BIT BINARY UP / DOWN COUNTER
74196 4-STAGE PRESETTABLE RIPPLE COUNTERS
74197 4-STAGE PRESETTABLE RIPPLE COUNTERS
74221 DUAL NON-RETRIGGERABLE MONOSTABLE MULTIVIBRATOR
74251 8-INPUT MULTIPLEXER 3-STATE