UNISONIC TECHNOLOGIES CO., LTD U74AHC126 CMOS IC QUADRUPLE BUS BUFFER GATES WITH 3-STATE OUTPUTS DESCRIPTION SOP-14 The U74HC126 is a quadruple bus buffer gate with 3-state outputs and 4 channels. FEATURES * Operate from 2V to 5.5V * Max tpd of 5.5ns at 5 V(CL=15pF) * Typical VIH< 2.1V at VCC=3V, Ta=25°C * Typical VIL> 0.9V at VCC=3V, Ta=25°C ORDERING INFORMATION Ordering Number U74AHC126G-S14-R Package SOP-14 Packing Tape Reel MARKING www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 5 QW-R502-380.B U74AHC126 CMOS IC PIN CONFIGURATION 1OE 1 14 VCC 1A 2 13 4OE 1Y 3 12 4A 2OE 4 11 4Y 2A 5 10 3OE 2Y 6 9 3A GND 7 8 3Y FUNCTION TABLE INPUTS(OE) H H L Note: H: HIGH voltage level INPUTS(A) L H X L: LOW voltage level OUTPUT(Y) L H Z Z: high impedance X: don’t care LOGIC DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R502-380.B U74AHC126 CMOS IC ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC -0.5 ~ 7 V Input Voltage VIN -0.5 ~ 7 V Output Voltage VOUT -0.5 ~ VCC +0.5 V VCC or GND Current ICC ±50 mA Output Current IOUT ±25 mA Input Clamp Current IIK -20 mA Output Clamp Current IOK ±20 mA Operating Temperature TOPR -40 ~ + 85 °C Storage Temperature TSTG -65 ~ + 150 °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. THERMAL DATA PARAMETER Junction to Ambient SYMBOL θJA TYP MAX 76 UNIT °C/W RECOMMENDED OPERATING CONDITIONS PARAMETER Supply Voltage SYMBOL VCC High-Level Input Voltage VIH Low-Level Input Voltage VIL Input Voltage Output Voltage IOH Low-Level Input Current IOL Input Transition Rise or Fall rate TEST CONDITIONS VCC=2V VCC=3V VCC=5.5V VCC=2V VCC=3V VCC=5.5V VIN VOUT High-Level Input Current MIN tR, tF MIN 2 1.5 2.1 3.85 TYP MAX 5.5 UNIT V V 0.5 0.9 1.65 5.5 VCC -50 -4 -8 50 4 8 100 20 0 0 VCC=2V VCC=3.3V±0.3V VCC=5V±0.5V VCC=2V VCC=3.3V±0.3V VCC=5V±0.5V VCC=3.3V±0.3V VCC=5V±0.5V V V V μA mA mA μA mA mA ns/V ELECTRICAL CHARACTERISTICS (TA=25°С) PARAMETER Output Voltage High-Level SYMBOL VOH Output Voltage Low-Level VOL Input Leakage Current Output Off-State Current Quiescent Supply Current Input Capacitance II(LEAK) IOZ IQ CI TEST CONDITIONS VCC=2V, IOH=-50μA VCC=3V, IOH=-50μA VCC=4.5V, IOH=-50μA VCC=3V, IOH=-4mA VCC=4.5V, IOH=-8mA VCC=2V, IOL=50μA VCC=3V, IOL=50μA VCC=4.5V, IOL=50μA VCC=3V, IOL=4mA VCC=4.5V, IOL=8mA VCC=0V~5.5V, VIN= VCC or GND VCC=5.5V, VOUT= VCC or GND VCC=5.5V, VIN=VCC or GND, IOUT=0 VCC=5V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 1.9 2.9 4.4 2.58 3.94 TYP 2 3 4.5 4 MAX UNIT V 0.1 0.1 0.1 0.36 0.36 ±100 ±250 4 10 V nA nA μA pF 3 of 5 QW-R502-380.B U74AHC126 CMOS IC SWITCHING CHARACTERISTICS(TA=25°С,CL=15pF) PARAMETER SYMBOL Propagation Delay From Input A to Output Y tPLH/tPHL Propagation Delay From Input OE to Output Y tPZH/tPZL Propagation Delay From Input OE to Output Y tPHZ/tPLZ MIN 1 1 1 1 1 1 TYP MIN 1 1 1 1 1 1 TYP MIN TYP 14 MAX 9.5 6.5 9.5 6 11.5 8 UNIT MAX 13 8.5 13 8 15 10 UNIT MAX UNIT pF ns ns ns SWITCHING CHARACTERISTICS(TA=25°С,CL=50pF) PARAMETER SYMBOL Propagation Delay From Input A to Output Y tPLH/tPHL Propagation Delay From Input OE to Output Y tPZH/tPZL Propagation Delay From Input OE to Output Y tPHZ/tPLZ TEST CONDITIONS VCC=3.3V±0.3V VCC=5V±0.5V VCC=3.3V±0.3V VCC=5V±0.5V VCC=3.3V±0.3V VCC=5V±0.5V TEST CONDITIONS VCC=3.3V±0.3V VCC=5V±0.5V VCC=3.3V±0.3V VCC=5V±0.5V VCC=3.3V±0.3V VCC=5V±0.5V ns ns ns OPERATING CHARACTERISTICS(TA=25°С) PARAMETER Power Dissipation Capacitance SYMBOL TEST CONDITIONS Cpd No Load, f=1MHz UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 5 QW-R502-380.B U74AHC126 CMOS IC TEST CIRCUIT AND WAVEFORMS t PLH t PZL t PLZ t PZH t PHZ t PHL Note: CL includes probe and jig capacitance. All input pulses are supplied by generators having the following characteristics: PRR ≤1MHz, Zo= 50Ω,tr≤3ns,tf≤3ns. 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-R502-380.B