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74157 - Quad 2-Line to 1-Line Data Selectors/Multiplexers
PAL013A - 4 x 45 W Quad bridge car radio amplifier
TDA7388 - 4 x 41W QUAD BRIDGE CAR RADIO AMPLIFIER
74279 - Quad S-R Latch
TDA7851 - 4 x 48 W MOSFET quad bridge power amplifier
YD7377 - 2 x 30W DUAL/QUAD POWER AMPLIFIER
74175 - HEX/QUADRUPLE D-Type Flip-Flops
ADT4C80F - 3 Quadrants Triacs
LC125A - Quadruple Bus Buffer Gate
L2901 - Quad Differential Comparators
SDP339 - LOW POWER LOW OFFSET VOLTAGE QUAD COMPARATORS
TDA7377 - 2 x 30W DUAL/QUAD POWER AMPLIFIER
7408 - QUAD 2-INPUT AND GATE
BTA416Y - Three-quadrant triacs
STA540SA - 4 x 10W DUAL/QUAD POWER AMPLIFIER
LA6324N - High-Performance Quad Operational Amplifier
NJM2060 - QUAD OPERATIONAL AMPLIFIER
TL074C - LOW NOISE J-FET QUAD OPERATIONAL AMPLIFIER
LM324-N - Quad-Operational Amplifiers
GD25Q64B - Uniform Sector Dual and Quad Serial Flash