M74HC4051 Single 8-channel analog multiplexer/demultiplexer Features Low power dissipation: I = 4 A(max) at T =25C CC A Logic level translation to enable 5 V logic signal to communicate with 5 V analog signal SOP-16 PDIP-16 Low ON resistance: 70 typ (V - V = 4.5 V) CC EE 50 typ (V - V = 9 V) CC EE Wide analog input voltage range : 6V Fast switching: t = 15 ns (typ) at T = 25 C pd A TSSOP-16 Low crosstalk between switches High ON/OFF output voltage ratio Wide operating supply voltage range Description (V - V ) = 2 to 12 V CC EE The M74HC4051 is a single 8-channel analog Low sine wave distortion: multiplexer/demultiplexer fabricated with silicon 0.02% at V - V = 9 V 2 CC EE gate C MOS technology, pin-to-pin compatible High noise immunity: with the equivalent metal gate CMOS4000B V = V = 28 % V (min) series. It contains 8 bidirectional and digitally NIH NIL CC controlled analog switches. Pin and function compatible with 74 series 4051 A built-in level shifting is included to allow an input range up to 6 V (peak) for an analog signal with digital control signal of 0 to 6 V. The V supply pin is provided for analog input EE signals. It has an inhibit (INH) input terminal to disable all the switches when is at high level. For operation as a digital multiplexer/demultiplexer, V is connected to GND. EE A, B and C control inputs select one channel out of eight. All inputs are equipped with protection circuits against static discharge and transient excess voltage. Table 1. Device summary Order code Package Packaging M74HC4051RM13TR SOP-16 Tape and reel M74HC4051TTR TSSOP-16 Tape and reel April 2008 Rev 4 1/17 www.st.com 17Pin connection and IEC logic symbols M74HC4051 1 Pin connection and IEC logic symbols Figure 1. Pin connection Figure 2. IEC logic symbols 1.1 Pin description Table 2. Pin description Pin number Symbol Name and function COM 3 Common output/input OUT/IN 6 INH Inhibit input 7V Negative supply voltage EE 11, 10, 9 A, B, C Select inputs 13, 14, 15, 12, 1, 5, 2, 4 0 to 7 Independent input/outputs 8 GND Ground (0 V) 16 V Positive supply voltage CC 2/17