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US5C3257 Dataheets PDF



Part Number US5C3257
Manufacturers Unisonic Technologies
Logo Unisonic Technologies
Description QUAD 2:1 MUX/DEMUX BUS SWITCH
Datasheet US5C3257 DatasheetUS5C3257 Datasheet (PDF)

UNISONIC TECHNOLOGIES CO., LTD US5C3257 Preliminary QUAD 2:1 MUX/DEMUX BUS SWITCH „ DESCRIPTION The UTC US5C3257 is a QUAD 2:1 multiplexer/demultiplexer with low on-resistance and is pinout and function compatible with the TTL device. Inputs can be connected to outputs with low on resistance (5Ω) with no additional ground bounce noise or propagation delay. „ FEATURES * 5Ω switches connect inputs to outputs * ESD protection on pin * Near zero propagation delay * Ultra Low Quiescent Power (0..

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UNISONIC TECHNOLOGIES CO., LTD US5C3257 Preliminary QUAD 2:1 MUX/DEMUX BUS SWITCH „ DESCRIPTION The UTC US5C3257 is a QUAD 2:1 multiplexer/demultiplexer with low on-resistance and is pinout and function compatible with the TTL device. Inputs can be connected to outputs with low on resistance (5Ω) with no additional ground bounce noise or propagation delay. „ FEATURES * 5Ω switches connect inputs to outputs * ESD protection on pin * Near zero propagation delay * Ultra Low Quiescent Power (0.2µA Typical) –Ideally suited for notebook applications * Direct bus connection when switches are ON * Pin compatible with U74 series logic devices „ ORDERING INFORMATION Ordering Number Lead Free Halogen Free US5C3257L-S16-R US5C3257G-S16-R US5C3257L-S16-T US5C3257G-S16-T Note: xx: Output Voltage, refer to Marking Information. Package SOP-16 SOP-16 CMOS IC Packing Tape Reel Tube www.unisonic.com.tw Copyright © 2013 Unisonic Technologies Co., Ltd 1 of 6 QW-R502-891.a US5C3257 „ PIN CONFIGURATION Preliminary CMOS IC „ PIN DESCRIPTION PIN NO. 1 2, 3, 5, 6, 10, 11,13,14, 4, 7, 9, 12 8 15 16 PIN NAME S IAn-IDn YA-YD GND E VCC Select Inputs Data Inputs Data Outputs Ground Enable Power DESCRIPTION UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 6 QW-R502-891.a US5C3257 „ BLOCK DIAGRAM Preliminary CMOS IC IA0 IA1 IB0 IB1 IC0 IC1 ID0 ID1 E S YA YB „ TRUTH TABLE E S YA H X Hi-Z L L IA0 L H IA1 Note: H=High Voltage Level, L=Low Voltage Level YB Hi-Z IB0 IB1 YC YD YC YD Function Hi-Z Hi-Z Disable IC0 ID0 S=0 IC1 ID1 S=1 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 6 QW-R502-891.a US5C3257 Preliminary CMOS IC „ ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Supply Voltage to Ground Potential (Inputs & VCC Only) Supply Voltage to Ground Potential (Outputs & D/O Only) -0.5~+7.0 -0.5~+7.0 V V DC Input Voltage -0.5~+7.0 V DC Output Current 120 mA Power Dissipation PD 0.5 W Storage Temperature TSTG -55~+150 °C Ambient Temperature with Power Applied TOPR -40~+85 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. „ DC ELECTRICAL CHARACTERISTICS (Typical application at VCC=5 V, TA=25°C, unless otherwise noted) PARAMETER Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current High Impedance Output Current Clamp Diode Voltage Short Circuit Current (Note 2) Input Hysteresis at Control Pins Switch On Resistance (Note 3) SYMBOL TEST CONDITIONS (Note 1) VIH Guaranteed Logic HIGH Level VIL Guaranteed Logic LOW Level IIH VCC=Max., VIN=VCC IIL VCC=Max., VIN=GND IOZH 0≤I, Y≤VCC VIK VCC=Min., IIN=-18mA IOS I(Y)=0V, Y(I)=VCC VH RON VCC=Min., VIN=0.0V, ION=48mA VCC=Min., VIN=2.4V, ION=15mA MIN TYP (Note 1) MAX 2.0 -0.5 0.8 ±1 ±1 ±1 -0.7 -1.2 100 150 57 10 15 UNIT V V µA µA µA V mA mV Ω Ω „ CAPACITANCE (TA=25°C, f=1MHz) PARAMETER (Note 4) SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Input Capacitance CIN VIN=0V 6 pF In/Yn Capacitance, Switch Off COFF VIN=0V 6 pF In/Yn Capacitance, Switch On CON VIN=0V 14 pF Notes:1. Typical values are at VCC=5.0V, TA=25°C ambient and maximum loading. 2. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 3. Measured by the voltage drop between I and Y pin at indicated current through the switch. ON resistance is determined by the lower of the voltages on the two (I, Y) pins. 4. This parameter is determined by device characterization but is not production tested. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 6 QW-R502-891.a US5C3257 Preliminary CMOS IC „ POWER SUPPLY CHARACTERISTICS PARAMETER SYMBOL TEST CONDITIONS (Note 1) MIN TYP (Note 2) MAX UNIT Quiescent Power Supply Current Supply Current per Input @ TTL HIGH ICC ∆ICC VCC=Max., VIN=GND or VCC VCC=Max., VIN=3.4V (Note 3) 0.1 3.0 µA 2.5 mA Supply Current per Input per MHz (Note 4) VCC=Max., I and Y Pins Open ICCD BE =GND, Control Input Toggling 50% Duty Cycle 0.25 mA/ MHz Notes:1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC=5.0V, TA=25°C ambient and maximum loading. 3. Per TTL driven input (VIN=3.4V, control inputs only); I and Y pins do not contribute to ICC. 4. This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified frequency. The I and Y inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is guaranteed by design. „ SWITCHING CHARACTERISTICS OVER OPERATIONG RANGE PARAMETER Propagation Delay In to Yn (Note 2, 3) Bus Select Time Sn to Yn Bus Disable Time E to Yn Bus Disable Time E to Yn SYMBOL TEST CONDITIONS (Note 1) MIN TYP MAX UNIT tIY 0.25.


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