UNISONIC TECHNOLOGIES CO., LTD U74AHC1G126 CMOS IC SINGLE BUS BUFFER GATE WITH 3-STATE OUTPUT DESCRIPTION The U74AHC1G126 is a single bus buffer gate/line driver with 3-state output. When OE is low, the Y output are in a high-impedance state. When OE is high, the device passes noninverted data from the A input to the Y output. To ensure the high-impedance state during power up or power down, OE should be tied to GND through a pull-down resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. FEATURES * Wide supply voltage range from 2V to 5.5V * Max tpd of 6 ns from A to Y at 5V * Low power consumption, ICC = 1 μA (Max.) at 5.5V * ±8 mA output driver at 5V ORDERING INFORMATION Order Number U74AHC1G126G-AE5-R U74AHC1G126G-AL5-R Package SOT-23-5 SOT-353 Packing Tape Reel Tape Reel MARKING www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 6 QW-R502-782.C U74AHC1G126 CMOS IC PIN CONFIGURATION VCC 5 1 OE 2 A 3 GND FUNCTION TABLE INPUT OE H H L Y 4 A H L X OUTPUT Y H L Z LOGIC DIAGRAM (positive logic) OE A 1 2 4 Y UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 6 QW-R502-782.C U74AHC1G126 CMOS IC ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Supply Voltage Range VCC -0.5~7 V Input Voltage Range VIN -0.5~7 V Output Voltage Range VOUT -0.5~VCC +0.5 V Input Clamp Current (VIN<0) IIK -20 mA Output Clamp Current (VOUT<0, or VOUT>VCC) IOK ±20 mA Output Current IOUT ±25 mA VCC or GND Current ICC ±50 mA Storage Temperature TSTG -65 ~ +150 °C Notes: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. 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. RECOMMENDED OPERATING COMDITIONS PARAMETER Supply Voltage SYMBOL VCC High-Level Input Voltage VIH Low-Level Input Voltage VIL Input Voltage Output Voltage VCC = 2V VCC = 3V VCC = 5.5V VCC = 2V VCC = 3V VCC = 5.5V VIN VOUT High-level Output Current IOH Low-level Output Current IOL Input Transition Rise or Fall Rate Operating Temperature CONDITIONS t/v MIN 2 1.5 2.1 3.85 0 0 VCC = 2V VCC = 3.3±0.3V VCC = 5±0.5V VCC = 2V VCC = 3.3±0.3V VCC = 5±0.5V VCC = 3.3±0.3V VCC = 5±0.5V TA -40 TYP MAX 5.5 0.5 0.9 1.65 5.5 VCC -50 -4 -8 50 4 8 100 20 85 UNIT V V V V V V V V V μA mA mA μA mA mA ns/V ns/V °C THERMAL DATA PARAMETER Junction to Ambient SYMBOL SOT-23-5 SOT-353 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw θJA RATING 280 350 UNIT °C/W 3 of 6 QW-R502-782.C U74AHC1G126 ELECTRICAL CHARACTERISTICS (TA =25°C , unless otherwise specified) PARAMETER High-Level Output Voltage Low-Level Output Voltage Input Leakage Current (A or OE input) High-impedance state Current Quiescent Supply Current Input Capacitance Output Capacitance Propagation delay from input A to output Y, tpd Propagation delay from input OE to output Y, ten Propagation delay from input OE to output Y, tdis VOH VOL TEST CONDITIONS IOH = -50 μA, VCC = 2V IOH = -50 μA, VCC = 3V IOH = -50 μA, VCC = 4.5V IOH = -4 mA, VCC = 3V IOH = -8 mA, VCC = 4.5V IOH = 50 μA, VCC = 2V IOH = 50 μA, VCC = 3V IOH = 50 μA, VCC = 4.5V IOH = 4 mA, VCC = 3V IOH = 8 mA, VCC = 4.5V MIN 1.9 2.9 4.4 2.58 3.94 TYP 2 3 4.5 MAX UNIT V 0.1 0.1 0.1 0.36 0.36 V II(LEAK) VIN = 5.5V or GND, VCC = 0 to 5.5V ±0.1 μA IOZ ICC CIN COUT VIN = VCC or GND, VCC = 5.5V VIN = VCC or GND, IOUT = 0, VCC = 5.5V VIN = VCC or GND, VCC=5V VO = VCC or GND, VCC=5V ±0.25 1 10 μA μA pF pF 4 10 SYMBOL tPLH tPHL tPZH tPZL tPHZ tPLZ TEST CONDITIONS CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ MIN TYP 5.6 8.1 5.6 8.1 5.4 7.9 5.4 7.9 7 9.5 7 9.5 MAX UNIT 8 ns 11.5 8 ns 11.5 8 ns 11.5 8 ns 11.5 9.7 ns 13.2 9.7 ns 13.2 MIN TYP 3.8 5.3 3.8 5.3 3.6 5.1 3.6 5.1 4.6 6.1 4.6 6.1 MAX UNIT 5.5 ns 7.5 5.5 ns 7.5 5.1 ns 7.1 5.1 ns 7.1 6.8 ns 8.8 6.8 ns 8.8 SWITCHING CHARACTERISTICS (VCC = 5V ± 0.5V, TA =25°C) PARAMETER Propagation delay from input A to output Y, tpd Propagation delay from input OE to output Y, ten Propagation delay from input OE to output Y, tdis SYMBOL SWITCHING CHARACTERISTICS (VCC = 3.3V ± 0.3V, TA =25°C) PARAMETER CMOS IC SYMBOL tPLH tPHL tPZH tPZL tPHZ tPLZ TEST CONDITIONS CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ CL=15pF, RL=1kΩ CL=50pF, RL=1kΩ OPERATING CHARACTERISTICS (TA =25°C , unless otherwise specified) PARAMETER Power dissipation capacitance SYMBOL Cpd UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw TEST CONDITIONS VCC = 5V, f=1MHz, No load TYP 14 UNIT pF 4 of 6 QW-R502-782.C U74AHC1G126 CMOS IC TEST CIRCUIT AND WAVEFORMS TEST tPLH/tPHL tPLZ/tPZL tPHZ/tPZH VCC Input S1 Open VLOAD GND VM VLOAD ≤3ns VCC/2 VCC ≤3ns VCC/2 VCC VIN tr, tf 3.3V±0.3V VCC 5V±0.5V VCC CL 15pF 50pF 15pF 50pF RL V∆ 1kΩ 0.3V 1kΩ 0.5V VIN Input VM VM tPLH tPHL 0V VOH Output VM VOL tPLH tPHL VOH VM Output UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw VM VOL 5 of 6 QW-R502-782.C U74AHC1G126 CMOS IC TEST CIRCUIT AND WAVEFORMS(Cont.) VIN Input VM VM 0V tPZL tPLZ VLOAD Output VM S 1 at VLOAD VOL ~ VΔ tPZH Output VOL tPHZ VOH ~ VΔ VOH VM S 1 at GND 0V NoteS: 1. CL includes probe and jig capacitance. 2. All input pulses are supplied by generators having the following characteristics: PRR ≤1MHz, 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 6 of 6 QW-R502-782.C