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74157 - Quad 2-Line to 1-Line Data Selectors/Multiplexers
74279 - Quad S-R Latch
TDA7851 - 4 x 48 W MOSFET quad bridge power amplifier
PAL013A - 4 x 45 W Quad bridge car radio amplifier
TDA7388 - 4 x 41W QUAD BRIDGE CAR RADIO AMPLIFIER
74175 - HEX/QUADRUPLE D-Type Flip-Flops
TL074C - LOW NOISE J-FET QUAD OPERATIONAL AMPLIFIER
YD7377 - 2 x 30W DUAL/QUAD POWER AMPLIFIER
STA540SA - 4 x 10W DUAL/QUAD POWER AMPLIFIER
LC125A - Quadruple Bus Buffer Gate
7408 - QUAD 2-INPUT AND GATE
TDA7385 - 4 x 42W quad bridge car radio amplifier
TDA7377 - 2 x 30W DUAL/QUAD POWER AMPLIFIER
RK3562 - high-performance and low-power quad-core application processor
SDP339 - LOW POWER LOW OFFSET VOLTAGE QUAD COMPARATORS
ADT4C80F - 3 Quadrants Triacs
HA17324A - Quad Operational Amplifier
L2901 - Quad Differential Comparators
BTA416Y - Three-quadrant triacs
GD25Q64B - Uniform Sector Dual and Quad Serial Flash
