UNISONIC TECHNOLOGIES CO., LTD U74CBT3126 CMOS IC QUADRUPLE FET BUS SWITCH DESCRIPTION The U74CBT3126 is a quadruple line bus switch. It is composed of four 1-bit line switchs with independent separate output-enable (OE) inputs. When OE is low, the switch is disabled. To ensure the high-impedance state during power up or power down, OE should be tied to GND through a pull-down resistor and the minimum value of the resistor is determined by the current-sourcing capability of the driver. FEATURES * 5 Ω switch connection between two ports * Max tpd of 0.25 ns at 5V * Low power consumption, ICC = 3 μA (Max.) at 5.5V * TTL compatible input levels ORDERING INFORMATION Ordering Number U74CBT3126G-S14-R U74CBT3126G-P14-R Package SOP-14 TSSOP-14 Packing Tape Reel Tape Reel MARKING www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 5 QW-R502-567.B U74CBT3126 PIN CONFIGURATION 1OE 1 14 VCC 1A 2 13 4OE 1B 3 12 4A 2OE 4 11 4B 2A 5 10 3OE 2B 6 9 3A GND 7 8 3B FUNCTION TABLE (each bus switch) INPUT OE L H CMOS IC FUNCTION Z A=B LOGIC DIAGRAM (positive logic) 1OE 1A 2OE 2A 3OE 3A 4OE 4A 1 3 2 1B 4 5 2B 10 9 8 3B 13 12 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 11 4B 2 of 5 QW-R502-567.B U74CBT3126 CMOS IC ABSOLUTE MAXIMUM RATING (TA =25°C , unless otherwise specified) PARAMETER SYMBOL VCC VIN VCC VIH VIL IIK ICH RATINGS UNIT -0.5~7 V -0.5~7 V 4 ~ 5.5 V High 2 V Control Input Voltage 0.8 V Low Input Clamp Current -50 mA Continuous Channel Current 128 mA SOP-14 Power Dissipation 600 PD mW TOPR = -40°C to +125°C TSSOP-14 500 Operating Temperature TOPR -40 ~ +85 °C Storage Temperature TSTG -65 ~ +150 °C Note: 1. 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. 2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. Supply Voltage Input Voltage Supply Voltage THERMAL DATA PARAMETER Junctions to Ambient θJA RATINGS 139 170 UNIT °C/W ELECTRICAL CHARACTERISTICS (TA =25°C , VCC = 5 V, unless otherwise specified) PARAMETER Digital Input Diode Voltage Input Leakage Current (OE inputs) Quiescent Supply Current Additional quiescent Supply Current Input Capacitance (OE) I/O Capacitance (OFF) Resistor between two ports SYMBOL SOP-14 TSSOP-14 SYMBOL TEST CONDITIONS VIK VCC = 4.5V, II = -18mA II(LEAK) ICC ICC CIN CIO ron MIN TYP MAX UNIT -1.2 V VCC = 5.5V, VIN = 5.5V or GND VCC = 5.5V, VIN = 5.5V or GND, IOUT = 0 VCC = 5.5V, One input at 3.4V, Other inputs at VCC or GND VIN = 3V or GND VOUT = 3V or GND, OE = GND VCC = 4V, VIN = 2.4V, IIN = 15mA, TYP at VCC = 4V VCC = 4.5V, VIN = 0V, IIN = 64mA VCC = 4.5V, VIN = 0V, IIN = 30mA VCC = 4.5V, VIN = 2.4V, IIN = 15mA ±1 μA 3 μA 2.5 mA 3 4 pF pF 16 22 5 5 10 7 7 15 Ω SWITCHING CHARACTERISTICS (TA =25°C) PARAMETER Propagation delay from input A (or B) to output B (or A) Propagation delay from input OE to output A or B Propagation delay from input OE to output A or B SYMBOL TEST CONDITIONS tPLH/tPHL VCC=4V (tpd) VCC=5±0.5V tPZL/tPZH VCC=4V CL=50pF, RL=500Ω (ten) VCC=5±0.5V tPLZ/tPHZ VCC=4V (tdis) VCC=5±0.5V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 1.6 1 MAX 0.35 0.25 5.4 5.1 5 4.5 UNIT ns ns ns 3 of 5 QW-R502-567.B U74CBT3126 CMOS IC TEST CIRCUIT AND WAVEFORMS TEST tPLH/tPHL tPLZ/tPZL tPHZ/tPZH VCC 4V 5V±0.5V Inputs VIN VCC VCC tr, tf ≤2.5ns ≤2.5ns VM VLOAD CL RL V∆ 1.5V 1.5V 7V 7V 50pF 50pF 500Ω 500Ω 0.3V 0.3V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw S1 Open VLOAD Open 4 of 5 QW-R502-567.B U74CBT3126 CMOS IC TEST CIRCUIT AND WAVEFORMS(Cont.) VIN Input VM VM 0V tPZL tPZL VLOAD/2 Output VM S1 at VLOAD VOL+VΔ tPHZ tPZH Output S1 at Open VOL VM VOH+VΔ VOH 0V Notes: 1. CL includes probe and jig capacitance. 2. All input pulses are supplied by generators having the following characteristics: PRR ≤10MHz, ZO = 50Ω. 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-R502-567.B