MC4556
DUAL OPERATIONAL AMPLIFIER (Unisonic Technologies)
MC4558
DUAL WIDE BANDWIDTH OPERATIONAL AMPLIFIERS (Motorola)
MC4558
Dual Operational Amplifier (Fairchild Semiconductor)
MC4558
DUAL OPERATIONAL AMPLIFIER (UTC)
MC4558CN
Wide bandwidth dual bipolar operational amplifier (STMicroelectronics)
MC4558V
Dual Wide Bandwidth Operational Amplifiers (ON Semiconductor)
MC4507
Open Carrier Double-Balanced Mixer (Tyco Electronics)
MC4510
Open Carrier Double-Balanced Mixer (Tyco Electronics)
MC4513
Open Carrier Double-Balanced Mixer (Tyco Electronics)
MC4520
Open Carrier Double-Balanced Mixer (Tyco Electronics)