74LVCH244AQ20-13

74LVCH244A OCTAL BUFFER/LINE DRIVER WITH BUS HOLD / 3 STATE OUTPUTS Description Pin Assignments The 74LVCH244A provides two 4-bit line drivers with separate output-enable (OE) inputs. When OE is low, the device passes data 1OE 1 20 in the high-impedance state. Vcc from the A inputs to the Y outputs. When OE is high, the outputs are The device is designed for operation with a power supply range of 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 10 11 Bus hold circuitry holds unused or un-driven inputs at a high or low 2A1 powered down. GND NEW PRODUCT 1.65V to 3.6V. logic state. The use of external pull-up or pull down resistors is not recommended. Features Applications • • Supply Voltage Range from 1.65V to 3.6V Sinks or Sources 24mA at VCC = 3V • General Purpose Logic • Bus Driving • • CMOS Low Power Consumption IOFF Supports Partial-Power Down Operation • Power Down Signal Isolation • Wide array of products such as: • Inputs or Outputs Accept up to 5.5V ƒ • Inputs Can be Driven by 3.3V or 5V Allowing for Mixed Voltage ƒ Networking Computer Peripherals, Hard Drives, CD/DVD ROM Applications • • PCs, Notebooks, Netbooks, Ultrabooks Schmitt Trigger Action at All Inputs Typical VOLP (Quiet Output Ground Bounce) less than 0.8V with ƒ TV, DVD, DVR, set top box VCC = 3.3V and TA = +25°C • Typical VOHV (Quiet Output Dynamic VOH) greater than 2.0V with VCC = 3.3V and TA = +25°C • 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 • 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 http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain