UNISONIC TECHNOLOGIES CO., LTD US5C3305 Preliminary CMOS IC 2-BIT BUS SWITCH WITH INDIVIDUAL ENABLES DESCRIPTION The UTC US5C3305 consist of two independent 5Ω switches with fast individual enables. The “A” pin is connected to the “B” pin directly when the associated Bus Enable (BE) pin is set to “High”. The bus switch introduces no additional propagation delay or additional ground bounce noise. FEATURES * Low on-resistor between two ports (5Ω typical) * Near-Zero propagation delay * Direct bus connection when switches are ON * Ultra Low Quiescent Power (0.2μA typical) - Ideally suited for notebook applications ORDERING INFORMATION Ordering Number US5C3305G-SM1-R Package MSOP-8 Packing Tape Reel MARKING www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 5 QW-R121-025.a US5C3305 CMOS IC PIN CONFIGURATION BE1 1 8 VCC A1 2 7 BE2 B1 3 6 B2 GND 4 5 A2 PIN DESCRIPTION PIN NO. 1, 7 2, 5 3, 6 4 8 Preliminary PIN NAME BEn A1, A2 B1, B2 GND VCC DESCRIPTION Switch Enable Bus A Bus B Ground Power TRUTH TABLE (Note 1) BEn An Bn VCC X (Note 2) Hi-Z Hi-Z GND L Hi-Z Hi-Z VCC H Bn An VCC Notes: 1. H=High Voltage Level, L=Low Voltage Level, Hi-Z=High Impedance, X=Don’t Care 2. A pull-up resistor should be provided for power-up protection. Function Disconnect Disconnect Connect BLOCK DIAGRAM A1 B1 BE1 A2 B2 BE2 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R121-025.a US5C3305 Preliminary CMOS IC ABSOLUTE MAXIMUM RATING (TA =25°C , unless otherwise specified) (Above which the useful life may be impaired. For user guidelines, not tested.) PARAMETER SYMBOL RATINGS UNIT Supply Voltage to Ground Potential -0.5~+7.0 V DC Input Voltage -0.5~+7.0 V DC Output Current 120 mA Power Dissipation PD 0.5 W Storage Temperature TSTG -65~+150 °C Ambient Temperature with Power Applied TA -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 (Over the Operating Range, TA=-40°C~+85°C, VCC=4V~5.5V) PARAMETER SYMBOL Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current High Impedance Output Current Low Impedance Output Current Input Hysteresis at Control Pins VIH VIL IIH IIL IOZ ION VH TEST CONDITIONS (Note 1) Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC=Max., VIN=VCC VCC=Max., VIN=GND 0≤A, B≤VCC 0≤A, B≤VCC TYP MAX (Note 2) 2.0 -0.5 0.8 ±1 ±1 ±1 ±1 250 MIN UNIT V V μA μA μA μA mV VCC=4.5V, VIN=0.0V, 4 7 Ω ION=30mA or 64mA Switch On-Resistance (Note 3) RON VCC=4.5V, VIN=2.4V, 8 15 Ω ION=-15mA 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. Measured by the voltage drop between A and B pin at indicated current through the switch. On-Resistance is determined by the lower of the voltages on the two (A, B) pin POWER SUPPLY CHARACTERISTICS PARAMETER SYMBOL TEST CONDITIONS (Note 1) MIN TYP MAX (Note 2) 0.1 3.0 UNIT Quiescent Power Supply Current ICC VIN=GND or VCC μA VCC=Max. Supply Current per Input @ △ICC VIN=3.4V (Note 3) 2.5 mA TTL HIGH Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at VCC=5.0V, +25°C ambient. 3. Per TTL driven input (VIN=3.4V, control inputs only); A and B pins do not contribute to ICC. CAPACITANCE (TA=25°C, f =1MHz) PARAMETER (Note 1) SYMBOL TEST CONDITIONS (Note 1) MIN Input Capacitance CIN VIN=0V A/B Capacitance, Switch Off COFF A/B Capacitance, Switch On CON Note: This parameter is determined by device characterization but is not production tested. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw TYP 3 5 10 MAX UNIT pF pF pF 3 of 5 QW-R121-025.a US5C3305 Preliminary CMOS IC SWITCHING CHARACTERISTICS OVER OPERATING RANGE (CL=50pF, RL=500Ω) PARAMETER SYMBOL Propagation Delay Time Signal A to B, B to A (Note 2, 3) tPLH/tPHL Bus Enable Time tPZH/tPZL Bus Disable Time tPHZ/tPLZ TEST CONDITIONS (Note 1) VCC=4V VCC=5V±10% VCC=4V VCC=5V±10% VCC=4V VCC=5V±10% MIN 1.0 1.0 TYP MAX UNIT 0.25 0.25 5.5 4.9 4.5 4.2 ns ns ns ns ns ns Notes: 1. See test circuit and waveforms. 2. This parameter is guaranteed but not tested on Propagation Delays. 3. The bus switch contributes no propagational delay other than the RC delay of the On-Resistance of the switch and the load capacitance. The time constant for the switch alone is of the order of 0.25ns for 50pF load. Since this time constant is much smaller than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus switch when used in a system is determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 5 QW-R121-025.a US5C3305 TEST CIRCUIT SWITCH POSITIONS Preliminary CMOS IC Test Switch Open Drain Disable LOW 7V Enable LOW All Other Inputs Open Note: CL=Load Capacitance: inlcudes jig and proble capacitance. RT=Termination Resistance: should be equal to the ZOUT of the Pulse Generator. ENABLE AND DISABLE TIMING Notes: 1. Input Control Enable = Low; Input Control Disable=High 2. Pulse Generator for All Pulses: Rate ≤1.0 MHz; ZOUT≤50Ω; tF, tR, ≤2.5ns. UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 5 QW-R121-025.a