74AHC126 QUADRUPLE 3-STATE BUFFERS OE HIGH Description Pin Assignments The 74AHC126 provides provides four independent buffer gates with 3-state outputs. Each buffer has a separate enable pin that when driven with a low logic level places the corresponding output in the high impedance state. The device is designed for operation with a power supply range of 2.0V to 5.5V. The inputs are tolerant to 5.5V allowing this device to be used in a mixed voltage environment. Features Wide Supply Voltage Range from 2.0V to 5.5V Outputs Sink or Source 8mA at V = 4.5V CC CMOS Low Power Consumption Schmitt Trigger Action at All Inputs Inputs can be driven by 3.3V or 5.5V allowing for voltage translation applications. ESD Protection Exceeds JESD 22 Applications 200-V Machine Model (A115-A) General Purpose Logic 2000-V Human Body Model (A114-A) Wide array of products such as: Exceeds 1000-V Charged Device Model (C101C) PCs, Networking, Notebooks, Netbooks Latch-Up Exceeds 250mA per JESD 78, Class II Computer Peripherals, Hard Drives, CD/DVD ROM Range of Package Options SO-14 and TSSOP-14 TV, DVD, DVR, Set Top Box Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. Green Device (Note 3) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See 74AHC126 Pin Descriptions Logic Diagram Pin Pin Name Function Number 1 1OE Data Enable Input (active low) 2 1A Data Input 3 1Y Data Output 4 2OE Data Enable Input (active low) 5 2A Data Input 6 2Y Data Output 7 GND Ground 8 3Y Data Output 9 3A Data Input 10 3OE Data Enable Input (active low) 11 4Y Data Output 12 4A Data Input 13 4OE Data Enable Input (active low) 14 Supply Voltage V CC Function Table Inputs Output OE A Y H H H H L L L X Z Absolute Maximum Ratings (Note 4) ( T = +25C, unless otherwise specified.) A Symbol Description Rating Unit ESD HBM Human Body Model ESD Protection 2 KV ESD CDM Charged Device Model ESD Protection 1 KV ESD MM Machine Model ESD Protection 200 V Supply Voltage Range -0.5 to +7.0 V V CC V Input Voltage Range -0.5 to +7.0 V I I Input Clamp Current V < -0.5V -20 mA IK I I Output Clamp Current V < -0.5V -20 mA OK O I Output Clamp Current V > V +0.5V 25 mA OK O CC I Continuous Output Current -0.5V < V V +0.5V +/- 25 mA O O CC 75 mA I Continuous Current Through V CC CC Continuous Current Through GND -75 mA I GND T Operating Junction Temperature -40 to +150 C J T Storage Temperature -65 to +150 C STG P Total Power Dissipation 500 mW TOT Note: 4. Stresses beyond the absolute maximum may result in immediate failure or reduced reliability. These are stress values and device operation should be within recommend values. 2 of 9 January 2013 74AHC126 Diodes Incorporated www.diodes.com Document number: DS35346 Rev. 3 - 2 NEW PRODUCT