AS21P2THB Low voltage high bandwidth dual single-pole double-throw analog switch Datasheet - production data Applications Wearable Sport and fitness Portable equipment QFN10 Description (1.8 x 1.4 mm) The AS21P2THB is a high-speed CMOS low voltage dual analog SPDT (single pole double throw) switch or 2:1 multiplexer/demultiplexer Features switch fabricated in silicon gate CMOS Ultra low power dissipation: technology. It is designed to operate from 1.65 V to 4.3 V, thus making this device the ideal I = 1 A (max.) at T = 85 C CC A selection for portable applications. Low ON resistance: The SEL input is provided to control the switch. R = 4.8 (T = 25 C) at V = 4.3 V ON A CC The switch nS1 is ON (connected to common R = 5.9 (T = 25 C) at V = 3.0 V ON A CC ports Dn) when the SEL input is held high and Wide operating voltage range: OFF (high impedance state exists between the V (opr.) = 1.65 V to 4.3 V CC two ports) when SEL is held low, the switch nS2 is ON (it is connected to common port Dn) when the 4.3 V tolerant and 1.8 V compatible threshold SEL input is held low and OFF (high impedance on digital control input at V = 2.3 V to 3.0 V CC state exists between the two ports) when SEL is Typical bandwidth (-3 dB) at 800 MHz on all held high. AS21P2THB has an integrated fail safe channels function to withstand over-voltage condition when USB (2.0) high speed (480 Mbps) signal the device is powered off. switching compliant The AS21P2THB also has an interrupt pin which Integrated fail safe function sends a signal to the processor when the device Interrupt function to indicate to the processor is in dedicated port charging mode. Additional key that the device is in dedicated port charging features are fast switching speed, break-before- mode make-delay time and ultralow power consumption. All inputs and outputs are equipped Latch-up performance exceeds 500 mA per with protection circuits against static discharge, JESD 78, Class II giving them ESD immunity and transient excess ESD performance exceeds JESD22: voltage. Dn pins: 4000-V human body model (A114- A) All other pins: 2000-V human body model (A114-A) Table 1. Device summary Order code Package Packaging AS21P2THB QFN10 (1.8 x 1.4 mm) Tape and reel March 2014 DocID026023 Rev 1 1/23 This is information on a product in full production. www.st.comContents AS21P2THB Contents 1 Pin settings 3 2 Logic diagram 4 3 Dedicated port charging detection . 5 4 Maximum rating . 6 4.1 Recommended operating conditions . 6 5 Electrical characteristics . 7 6 Test circuit 12 7 Package mechanical data 17 8 Revision history . 22 2/23 DocID026023 Rev 1