UNISONIC TECHNOLOGIES CO., LTD U74CBT2G125 CMOS IC Dual Bus Switch with Level Shift DESCRIPTION The U74CBT2G125 is a low on-resistance, high-speed CMOS 2-bit bus switch. This bus switch allows the connections or disconnections to be made with minimal propagation delay while maintaining Low power dissipation which is the feature of CMOS. When output enable ( OE ) is at low level, the switch is on; when at high level, the switch is off. The device is enable to realize the shift of signal level from 5V to 3.3 V. All inputs are equipped with protector circuits to protect the device from static discharge. FEATURES * Operating voltage: VCC=4.0~5.5V * High speed operation: tPD=0.32 ns (max) * Ultra-low on resistance: RON=5Ω (typ.) * TTL level input (control input) * Low Power Dissipation: ICC=10μA (max.) ORDERING INFORMATION Ordering Number U74CBT2G125G-S08-R U74CBT2G125G-P08-R Package SOP-8 TSSOP-8 Packing Tape Reel Tape Reel U74CBT2G125G-S08-R (1) Packing Type (1) R: Tape Reel (2) Package Type (2) S08: SOP-8, P08: TSSOP-8 (3) Green Package (3) G: Halogen Free and Lead Free MARKING SOP-8 www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd TSSOP-8 1 of 6 QW-R502-942.B U74CBT2G125 CMOS IC PIN CONFIGURATION FUNCTION TABLE (each gate) INPUT OUTPUT OE L H A port = B port Disconnect LOGIC DIAGRAM (positive logic) A1 B1 OE1 A2 B2 OE2 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 6 QW-R502-942.B U74CBT2G125 CMOS IC ABSOLUTE MAXIMUM RATING (unless otherwise specified)(Note 1) PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC -0.5~7.0 V Input Voltage VIN -0.5~7.0 V Switch terminal I/O voltage VS -0.5~7.0 V Switch I/O current IS 128 mA Input Clamp Current(VI<0) IIK -50 mA DC VCC/GND current ICC/IGND ±100 mA Storage Temperature TSTG -65 ~ +150 °C Note 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51. THERMAL DATA PARAMETER Junction to Ambient SYMBOL SOP-8 TSSOP-8 θJA UNIT °C/W °C/W RECOMMENDED OPERATING COMDITIONS PARAMETER Supply Voltage Control pin input voltage Switch I/O voltage High-control input voltage Low-control input voltage Operating Temperature Control pin input rise/fall time RATINGS 97 149 SYMBOL VCC VIN VS VIH VIL TA dt/dv MIN 4 0 0 2 TYP MAX 5.5 5.5 5.5 UNIT V V V V V °C ns/V 0.8 +85 10 -40 0 STATIC CHARACTERISTICS PARAMETER Digital Input Diode Voltage SYMBOL VIK High-level output voltage VOH Input leakage current Quiescent Supply Current Additional Quiescent Supply Current IIN ICC Power off leakage current TEST CONDITIONS VCC=4,Ii=-18mA VCC=4.75V IOH=1μA, VIS= VCC VCC=5.0V VCC=5.25V VCC=4.5~5.5V, VIN=0~5.5V VCC=5.5V, VI=5.5V or GND, IO=0 VCC=5.5V , VIN=3.4 V (one input) 2.5 mA IOFF VCC=0, A=B= OE =0~5.5V ±1.0 μA ±1.0 μA ISZ VCC=4.5~5.5V, A,B=0~5.5V, OE = VCC CIN VCC=5V Switch terminal capacitance CI/O VCC=5V, OE = VCC VCC=4.5V RON VCC=4.75V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2.3 2.5 2.7 TYP MAX UNIT -1.2 V 2.8 3.2 V 3.0 3.4 V 3.2 3.6 V ±1.0 μA 10 μA ∆ICC Off-STATE leakage current (switch off) Control Input Capacitance ON-Resistance MIN 3 II=64mA VI=0V II=30mA VI=2.3V, II=-15mA II=64mA VI=0V II=30mA VI=2.3V, II=-15mA pF 10 5 5 35 5 5 35 pF 9 9 65 8 8 50 Ω Ω Ω Ω Ω Ω 3 of 6 QW-R502-942.B U74CBT2G125 CMOS IC DYNAMIC CHARACTERISTICS (Input: tR, tF≤2.5ns; PRR≤10MHz; CL=50pF) See Fig. 1 and Fig. 2 for test circuit and waveforms. PARAMETER From input (A or B) to output (B or A) SYMBOL tpd TEST CONDITIONS VCC=4.5V MIN TYP MAX UNIT 0.32 ns From input OE to output (A or B) ten VCC=4.5V 4.5 ns From input OE to output (A or B) tdis VCC=4.5V 5.0 ns UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 6 QW-R502-942.B U74CBT2G125 CMOS IC TEST CIRCUIT AND WAVEFORMS（CL=50pF, RL=500Ω, VLOAD=7V, VM=1.5V) Note: CL includes probe and jig capacitance. Fig. 1 Load circuitry for switching times Fig. 2 Propagation delay from input(A) to output(B) and Output transition time UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 6 QW-R502-942.B U74CBT2G125 CMOS IC 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 6 of 6 QW-R502-942.B