oH V SC AV ER OM AI SIO PL LA N IA BL S NT E ■ 24Q DTA 2 005 041 *R Features ■ ■ ■ ■ Lead free versions available RoHS compliant (lead free version)* 18 termination channels Incorporates 36 bi-directional Schottkybased diodes Small form factor replaces 18 SOT23 packages ■ ■ Low forward voltage (2 options available) Very fast recovery time Thin Film on Silicon 2DTA High Performance Memory Bus Terminator General Information Package Schematic The Model 2DTA Series High Performance Memory Bus Terminator is well-suited for high speed bus termination applications where variable bus loading and very low terminator power dissipation are required. This very efficient high speed terminator array is highly integrated and is very effective for use in space constrained applications such as PC notebooks and motherboards, engineering workstations and portable battery powered devices. Two performance options are available. The higher grade 2DTA-5 with a maximum forward voltage of 0.75 V is suited for ultra-fast and dense memory termination configurations. The 2DTA-10, with a maximum specified forward voltage of 0.85 V is primarily targeted to general purpose applications where board space is critical. VDD 24 23 22 1 GND 2 3 21 20 4 5 VDD GND 19 18 17 16 15 14 13 6 7 GND 8 9 10 11 12 VDD Electrical & Environmental Characteristics Electrical Characteristics Symbol VDD Channel Clamp Current (continuous) 2DTA-5 Forward Voltage: @If = 16 mA @If = 50 mA 2DTA-10 Forward Voltage: @If = 16 mA @If = 50 mA Leakage Current @ Max. VDD Diode Capacitance Diode Ohmic Resistance Charge Carrier Lifetime Minimum Nominal -0.3 IC Maximum Unit +7 ±50 V mA Vf Vf 0.4 0.5 0.65 0.75 V V Vf Vf 0.5 0.65 0.1 0.75 0.85 5 5 5 tl 100 V V µA pF Ω pS Environmental Characteristics ESD Protection (Mil-Std-883 Method 3015) Operating Temperature Storage Temperature Diode Power Rating TJ Tstg *RoHS Directive 2002/95/EC Jan 27 2003 including Annex Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 4 -55 -65 +125 +150 20 KV °C °C mW/diode Applications ■ ■ ■ ■ High speed synchronous DRAM, SGRAM, SyncLink memory bus termination High speed SRAM cache 100 MHz PCI and AGP bus termination Local bus termination for all popular microprocessors Thin Film on Silicon 2DTA High Performance Memory Bus Terminator Mechanical Characteristics QSOP Package Power Temperature Derating Curve QSOP Package Dimensions A .635 TYP. (.025) WATTS 1.25 3.81 - 3.99 (.150 - .157) 1.0 2QSP24 .75 .50 .25 0 25 50 75 100 125 150 AMBIENT TEMPERATURE ( ° C ) Typical Part Marking .21 - .31 (.008 - .012) PIN 1 Represents total content. Layout may vary. 1.35 - 1.75 (.053 - .069) PRODUCT FUNCTION FORWARD VOLTAGE .10 - .25 (.004 - .010) DTA24Q 005 YYWW PIN 1 INDICATOR (MOLDED INDENT) PIN COUNT PACKAGE STYLE DATE CODE MANUFACTURER'S TRADEMARK .19 - .25 (.007 - .010) 0-8 ° 5.80 - 6.20 (.228 - .244) Model 2QSP24 .41 - 1.27 (.016 - .050) A 8.56 - 8.74 (.337 - .344) Governing dimensions are in mm. Dimensions in parentheses are in inches and are approximate. JEDEC Reference Number MO-137. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. Thin Film on Silicon 2DTA High Performance Memory Bus Terminator Dispensing For large quantities, the product will be dispensed in Tape and Reel (see diagram below). A0 DIMENSIONS = MM (INCHES) B0 K0 Package A0 B0 K0 Width Pitch QSOP 24 Pin 6.5 (0.256) 9.0 (0.354) 2.1 (0.083) 16 (0.630) 8 (0.315) No. of Pieces No. of Pieces per 13 ” reel per tube 3,500 56 How To Order 2 DTA-5 - Q 24 R __ Product Class Thin-Film-on-Silicon Product Function DTA = Memory Bus Terminator Forward Voltage (Vf) (See Electrical Characteristics) Standard Package Style Q = QSOP Pin Count Q = 24 Dispensing R = Reel T = Tube Terminations LF = 100 % Sn (lead free) Blank = Sn/Pb 04/05 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. Reliable Electronic Solutions Asia-Pacific: Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116 Europe: Tel: +41-41 768 5555 • Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 • Fax: +1-951 781-5700 www.bourns.com