74AHCT125 QUADRUPLE 3-STATE BUFFERS OE LOW Description Pin Assignments The 74AHCT125 provides provides four independent buffer gates with 3-state outputs. Each buffer has a separate enable pin that if driven with a high 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 V = 4.5V CC CMOS Low Power Consumption Schmitt Trigger Action at All Inputs ESD Protection Exceeds JESD 22 Applications 200-V Machine Model (A115-A) 2000-V Human Body Model (A114-A) General Purpose Logic Exceeds 1000-V Charged Device Model (C101C) Wide array of products such as: Latch-Up Exceeds 250mA per JESD 78, Class II PCs, Networking, Notebooks, Netbooks Range of Package Options SO-14 and TSSOP-14 Computer Peripherals, Hard Drives, CD/DVD ROM Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) TV, DVD, DVR, Set Top Box 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 74AHCT125 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 upply Voltage V CC Function Table Inputs Output A Y OE L H H L L L H 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 V Supply Voltage Range -0.5 to +7.0 V CC V Input Voltage Range -0.5 to +7.0 V I I Input Clamp Current V < -0.5V -20 mA IK I -20 mA I Output Clamp Current V < 0V OK O 20 mA I Output Clamp Current V > V OK O CC I Continuous Output Current 0V < V < V +/- 25 mA O O CC I Continuous Current Through V 50 mA CC CC I Continuous Current Through GND -50 mA GND T Operating Junction Temperature -40 to +150 C J T Storage Temperature -65 to +150 C STG Total Power Dissipation 500 mW P 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 8 January 2013 74AHCT125 Diodes Incorporated www.diodes.com Document number: DS35355 Rev. 3 - 2 NEW PRODUCT