74LVC126A QUADRUPLE 3-STATE BUFFERS Description Pin Assignments The 74LVC126A provides four independent buffers with three state outputs. Each output is independently controlled by an associated output enable pin (OE) which places the device in the high impedance state when driven low. The device is designed for operation with a power supply range of 1.65V to 5.5V. The inputs are tolerant to 5.5V allowing this device to be used in a mixed voltage environment. The device is fully specified for partial power down applications using IOFF. The IOFF circuitry disables the output preventing damaging current backflow when the device is powered down. Features Supply Voltage Range from 1.65V to 5.5V Sinks 24mA at V = 3.3V CC CMOS low power consumption Applications IOFF Supports Partial-Power-Down Mode Operation Inputs or outputs accept up to 5.5V Voltage Level Shifting Inputs can be driven by 3.3V or 5.5V allowing for voltage General Purpose Logic translation applications. Power Down Signal Isolation ESD Protection Exceeds JESD 22 Wide array of products such as: 200-V Machine Model (A115-A) PCs, networking, notebooks, ultrabooks, netbooks 2000-V Human Body Model (A114-A) Computer peripherals, hard drives, CD/DVD ROM Exceeds 1000-V Charged Device Model (C101C) TV, DVD, DVR, set top box Latch-Up Exceeds 250mA per JESD 78, Class II Range of Package Options SO-14 and TSSOP-14 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 74LVC126A Pin Descriptions Pin Number Pin Name Description 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 Logic Diagram Function Table Inputs Output OE A Y H H H H L L L X Z 2 of 10 June 2012 74LVC126A Diodes Incorporated www.diodes.com Document number: DS35266 Rev. 3 - 2