74AHCT126 QUADRUPLE 3-STATE BUFFERS OE HIGH Description Pin Assignments The 74AHCT126 provides four independent buffer gates with 3-state outputs. Each buffer has a separate enable pin that if 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 4.5V to 5.5V. Features Wide Supply Voltage Range from 4.5V to 5.5V Inputs Are TTL Voltage Level Compatible Outputs Sink or Source 8mA at VCC = 4.5V CMOS Low Power Consumption Schmitt Trigger Action at All Inputs ESD Protection Exceeds JESD 22 200-V Machine Model (A115) 2000-V Human Body Model (A114) Applications Exceeds 1000-V Charged Device Model (C101) General Purpose Logic Latch-Up Exceeds 250mA per JESD 78, Class II Wide Array of Products Such as: Range of Package Options SO-14 and TSSOP-14 PCs, Networking, Notebooks, Netbooks Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Computer Peripherals, Hard Drives, CD/DVD ROMs Halogen and Antimony Free. Green Device (Note 3) TVs, DVDs, DVRs, Set Top Boxes Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See 74AHCT126 Ordering Information 7 Tape and Reel Part Number Package Code Packaging Quantity Part Number Suffix 74AHCT126S14-13 S14 SO-14 2,500/Tape & Reel -13 74AHCT126T14-13 T14 TSSOP-14 2,500/Tape & Reel -13 Pin Descriptions Logic Diagram Pin Pin Name Function Number 1 1OE Data Enable Input (active high) 2 1A Data Input 3 1Y Data Output 4 2OE Data Enable Input (active high) 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 high) 11 4Y Data Output 12 4A Data Input 13 4OE Data Enable Input (active high) 14 V Supply Voltage CC Function Table Inputs Output OE A Y H H H H L L L X Z 2 of 9 April 2015 74AHCT126 Diodes Incorporated www.diodes.com Document number: DS35356 Rev. 3 - 2