8-Channel Analog Multiplexer/Demultiplexer
Dual 4-Channel Analog Multiplexer/Demultiplexer
Triple 2-Channel Analog Multiplexer/Demultiplexer
The TC74VHC4051A/4052A/4053A are high-speed, low-voltage
drive analog multiplexer/demultiplexers using silicon gate CMOS
technology. In 3 V and 5 V systems these can achieve high-speed
operation with the low power dissipation that is a feature of
The TC74VHC4051A/4052A/4053A offer analog/digital signal
selection as well as mixed signals. The 4051A has an 8-channel
configuration, the 4052A has an 4-channel × 2 configuration, and
the 4053A has a 2-channel × 3 configuration.
The switches for each channel are turned ON by the control pin
All control inputs are equipped with a newly developed input
protection circuit that avoids the need for a diode on the plus side
(forward side from the input to the VCC).
As a result, for example,
5.5 V signals can be permitted on the inputs even when the
power supply voltage to the circuits is off. As a result of this input
power protection, the TC74VHC4051A/4052A/4053A can be used
in a variety of applications, including in the system which has
two power supplies, and in battery backup circuits.
• Low ON resistance: Ron = 45Ω (typ.) (VCC = 3 V)
Ron = 24Ω (typ.) (VCC = 4.5 V)
• Low power dissipation: ICC = 2.0 μA (max) (Ta = 25°C)
• Input level: VIL = 0.8V (max) (VCC = 3 V)
VIH = 2.0V (min) (VCC = 3 V)
• Power down protection is provided on all control inputs
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