74LVC241A OCTAL BUFFER/LINE DRIVER WITH 3 STATE OUTPUTS Description Pin Assignments The 74LVC241A provides two 4-bit buffers/drivers with separate (Top View ) ( Top Transparent View) output-enable (1OE and 2OE) inputs. When 1OE is low or 2OE is terminal 1 1 20 Vcc 1OE index area high, the device passes noninverted data from the A inputs to the 2 19 1A1 2OE Y outputs. When 1OE is high or 2OE is low, the outputs for the 19 1A1 2 2OE 3 18 2Y4 1Y1 respective buffers/drivers are in the high-impedance state. 18 2Y4 3 1Y1 4 17 1A2 2A4 4 17 1A2 2A4 The device is designed for operation with a power supply range of 5 16 2Y3 1Y2 5 16 2Y3 1Y2 6 15 1.65V to 3.6V. 6 15 1A3 2A3 1A3 2A3 2Y2 7 14 1Y3 7 14 1Y3 2Y2 1A4 8 13 2A2 The inputs are tolerant to 5.5V allowing this device to be used in a 1A4 8 13 2A2 2Y1 9 12 1Y4 mixed voltage environment. The device is fully specified for partial 2Y1 9 12 1Y4 power down applications using I . The I circuitry disables the OFF OFF GND 10 11 2A1 output preventing damaging current backflow when the device is QFN-20 TSSOP-20 powered down. Applications Features General Purpose Logic Supply Voltage Range from 1.65V to 3.6V Bus Driving Sinks or Sources 24mA at V = 3V CC Power Down Signal Isolation CMOS Low Power Consumption Wide array of products such as: I Supports Partial -Power Down Operation OFF PCs, Notebooks, Netbooks, Ultrabooks Inputs or Outputs Accept up to 5.5V Networking Computer Peripherals, Hard Drives, CD/DVD Inputs Can Be Driven by 3.3V or 5V Allowing for Mixed Voltage ROM Applications TV, DVD, DVR, Set Top Box Schmitt Trigger Action at All Inputs Typical V (Quiet Output Ground Bounce) Less than 0.8V with OLP V = 3.3V and T = +25C CC A Typical V (Quiet Output Dynamic VOH) Greater than 2.0V OHV with V = 3.3V and T = +25C CC A ESD Protection Tested per JESD 22 Exceeds 200-V Machine Model (A115) Exceeds 2000-V Human Body Model (A114) Exceeds 1000-V Charged Device Model (C101) Latch-Up Exceeds 250mA per JESD 78, Class I All devices are: 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 74LVC241A Ordering Information 74 LVC 241A xxx -13 Logic Device Function Package Packing 74 : Logic Prefix 241 : Octal T20 : TSSOP-20 -13 : 13 Tape & Reel Buffer/Line Q20 : QFN-20 Driver with 3 State Outputs Package Package 13 Tape and Reel Package Part Number Code (Note 4 & 5) Size Quantity Part Number Suffix 6.4mm X 6.5mm X 1.2mm 74LVC241AT20-13 T20 TSSOP-20 2500/Tape & Reel -13 0.65 mm lead pitch 2.5mm X 4.5mm X 0.95mm 74LVC241AQ20-13 Q20 V-QFN4525-20 2500/Tape & Reel -13 0.50 mm lead pitch Notes: 4. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at