MM54HCT688 MM74HCT688 8-Bit Magnitude Comparator (.
HA1-2546883 - Wideband Two Quadrant Analog Multiplier (Voltage Output)
HA2546883 - Wideband Two Quadrant Analog Multiplier (Voltage Output)
HA4-2546883 - Wideband Two Quadrant Analog Multiplier (Voltage Output)
54688 - 8-Bit Magnitude Comparator