74AHCT126 QUADRUPLE 3-STATE BUFFERS OE HIGH Description Pin Assignments The 74AHCT126 provides four independent buffer gates with 3-state outputs. Each buffer has a separate enable pin that if driven with a low 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 VCC = 4.5V • CMOS Low Power Consumption • Schmitt Trigger Action at All Inputs • ESD Protection Exceeds JESD 22 200-V Machine Model (A115) 2000-V Human Body Model (A114) Exceeds 1000-V Charged Device Model (C101) • Latch-Up Exceeds 250mA per JESD 78, Class II • Range of Package Options SO-14 and TSSOP-14 Applications • • • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) • Halogen and Antimony Free. “Green” Device (Note 3) Notes: General Purpose Logic Wide Array of Products Such as: PCs, Networking, Notebooks, Netbooks Computer Peripherals, Hard Drives, CD/DVD ROMs TVs, DVDs, DVRs, Set Top Boxes 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com 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 <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. 74AHCT126 Document number: DS35356 Rev. 3 - 2 1 of 9 www.diodes.com April 2015 © Diodes Incorporated 74AHCT126 Ordering Information Part Number Package Code Packaging 74AHCT126S14-13 74AHCT126T14-13 S14 T14 SO-14 TSSOP-14 Pin Descriptions Pin Pin Name Number 1 1OE 2 1A 3 1Y 4 2OE 5 2A 6 2Y 7 GND 8 3Y 9 3A 10 3OE 11 4Y 12 4A 13 4OE 14 VCC 7” Tape and Reel Quantity Part Number Suffix 2,500/Tape & Reel -13 2,500/Tape & Reel -13 Logic Diagram Function Data Enable Input Data Input Data Output Data Enable Input Data Input Data Output Ground Data Output Data Input Data Enable Input Data Output Data Input Data Enable Input (active high) (active high) (active high) (active high) Supply Voltage Function Table Inputs OE H H L A H L X 74AHCT126 Document number: DS35356 Rev. 3 - 2 Output Y H L Z 2 of 9 www.diodes.com April 2015 © Diodes Incorporated 74AHCT126 Absolute Maximum Ratings (Note 4) (TA = +25°C, unless otherwise specified.) Symbol ESD HBM ESD CDM ESD MM VCC VI Description Human Body Model ESD Protection Charged Device Model ESD Protection Machine Model ESD Protection Rating 2 1 200 Unit kV kV V Supply Voltage Range -0.5 to +7.0 V Input Voltage Range -0.5 to +7.0 V IIK Input Clamp Current VI < -0.5V -20 mA IOK Output Clamp Current VO < 0 V -20 mA IOK Output Clamp Current 20 mA IO Continuous Output Current 0V < VO < VCC ICC Continuous Current Through VCC VO > VCC Continuous Current Through GND +/- 25 mA 50 mA -50 mA Operating Junction Temperature -40 to +150 °C TSTG Storage Temperature -65 to +150 °C PTOT Total Power Dissipation 500 mW IGND TJ 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. Recommended Operating Conditions (Note 5) (TA = +25°C, unless otherwise specified.) Symbol VCC VI VO ∆t/∆V TA Note: Parameter Min Max Unit 4.5 5.5 V Input Voltage 0 5.5 V Supply Voltage Output Voltage 0 Input transition Rise or Fall Rate - VCC 20 ns/V V Operating Free-Air Temperature -40 +125 °C 5. Unused inputs should be held at VCC or Ground. 74AHCT126 Document number: DS35356 Rev. 3 - 2 3 of 9 www.diodes.com April 2015 © Diodes Incorporated 74AHCT126 Electrical Characteristics Symbol VIH VIL Parameter High-Level Input Voltage Low-Level Input Voltage Test Conditions Max Min Max Unit 2.0 - 2.0 - V - 4.5V to 5.5V - 0.8 - 0.8 V 4.5V 4.4 - 4.4 - 4.5V 3.80 - 3.70 - VOL Low-Level Output Voltage IOZ ∆ICC Min 4.5V to 5.5V High-Level Output IOH = -50µA Voltage IOH = -8mA ICC TA = -40°C to +125°C - VOH II TA = -40°C to +85°C Vcc V IOL = 50µA 4.5V - 0.1 - 0.1 IOL = 8mA 4.5V - 0.44 - 0.55 Z State Leakage Current VO = 0 to 5.5V 5.5V - ±2.5 - ±10 µA Input Current VI = GND to 5.5V 3.6V - ±1 - ±2 µA Supply Current VI = GND or VCC, IO = 0 3.6V - 20 - 40 µA Additional Supply Current One input at VCC –2.1V Other pins at VCC or GND 5.5V - 1.35 - 5 mA V Operating Characteristics Parameter Test Conditions VCC = 5.5V Typ Unit Cpd Power Dissipation Capacitance per Gate f = 1MHz 14.8 pF Ci Input Capacitance Vi = VCC – or GND 4.0 pF Switching Characteristics (VCC = 4.5V to 5.5V) Symbol Parameter tPD Propagation Delay AN to YN tEN Enable Time OEN to YN tDIS Disable Time OEN to YN 74AHCT126 Document number: DS35356 Rev. 3 - 2 Test Conditions Min TA = +25°C Typ Max -40°C to +85°C -40°C to +125°C Min Max Min Max Figure 1 CL = 15pF 0.5 3.0 5.5 0.5 6.5 0.5 7.0 Figure 1 CL = 50pF 0.5 4.3 7.5 0.5 8.5 0.5 9.5 Figure 1 CL = 15 pF 0.5 3.3 5.1 0.5 6.0 0.5 6.5 Figure 1 CL = 50pF 0.5 4.7 7.1 0.5 8.0 0.5 9.0 Figure 1 CL = 15pF 0.5 4.8 6.8 0.5 8.0 0.5 8.5 Figure 1 CL = 50pF 0.5 6.5 8.9 0.5 10.0 0.5 11.5 4 of 9 www.diodes.com Unit ns ns ns April 2015 © Diodes Incorporated 74AHCT126 Parameter Measurement Information Inputs Vcc 4.5V to 5.5V VI 3V tr/tf ≤3ns TEST S1 tPLH/tPHL Open tPLZ/tPZL Vload tPHZ/tPZH GND VM Inputs VM Outputs VLOAD CL RL V∆ 1.5 V VCC/2 VCC 15pF, 50pF 1K 0.3V Vl Output Control Voltage Waveform Pulse Duration Output Waveform 1 S1 at VLOAD (see Note B) Output Waveform 2 S1 at GND (see Note B) VM VM 0V tPZL tPLZ VM VOL + V VLOAD/2 VOL tPHZ tPZH VM VOH - V VOH 0V Voltage Waveform Enable and Disable Times Low and High Level Enabling Voltage Waveform Propagation Delay Times Inverting and Non Inverting Outputs Figure 1. Load Circuit and Voltage Waveforms Notes: A. Includes test lead and test apparatus capacitance. B. All pulses are supplied at pulse repetition rate ≤ 1 MHz. C. Inputs are measured separately one transition per measurement. D. tPLZ and tPHZ are the same as tdis. E. tPZL and tPZH are the same as tEN0 F. tPLH and tPHL are the same as tPD. 74AHCT126 Document number: DS35356 Rev. 3 - 2 5 of 9 www.diodes.com April 2015 © Diodes Incorporated 74AHCT126 Marking Information (1) SO-14, TSSOP-14 ( Top View ) 14 8 YY : Year : 08, 09,10~ WW : Week : 01~52; 52 Logo 74AHCT126 YY WW X X Part Number 1 represents 52 and 53 week X X : Internal Codes 7 Part Number 74AHCT126S14 74AHCT126T14 74AHCT126 Document number: DS35356 Rev. 3 - 2 6 of 9 www.diodes.com Package SO-14 TSSOP-14 April 2015 © Diodes Incorporated 74AHCT126 Package Outline Dimensions (All dimensions in mm.) Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the latest version. Package Type: SO-14 H E Gauge Plane L θ Detail “A” D 7° (4 x) A2 A e B Detail “A” A1 SO-14 Dim Min Max A 1.47 1.73 A1 0.10 0.25 A2 1.45 Typ B 0.33 0.51 D 8.53 8.74 E 3.80 3.99 e 1.27 Typ H 5.80 6.20 L 0.38 1.27 8° θ 0° All Dimensions in mm 0.25 Package Type: TSSOP-14 B L F1 Gauge Plane Seating Plane a2 Pin# 1 Indent F Detail ‘A’ G K A a1 D C TSSOP-14 Dim Min Max a1 7° (4X) a2 8° 0° A 4.9 5.10 B 4.30 4.50 C 1.2 D 0.8 1.05 F 1.00 Typ F1 0.45 0.75 G 0.65 Typ K 0.19 0.30 L 6.40 Typ All Dimensions in mm Detail ‘A’ 74AHCT126 Document number: DS35356 Rev. 3 - 2 7 of 9 www.diodes.com April 2015 © Diodes Incorporated 74AHCT126 Suggested Pad Layout Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version. Package Type: SO-14 X Dimensions Value (in mm) X 0.60 Y 1.50 C1 5.4 C2 1.27 C1 C2 Y Package Type: TSSOP-14 X Dimensions Value (in mm) X 0.45 Y 1.45 C1 5.9 C2 0.65 C1 C2 Y 74AHCT126 Document number: DS35356 Rev. 3 - 2 8 of 9 www.diodes.com April 2015 © Diodes Incorporated 74AHCT126 IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. 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LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright © 2015, Diodes Incorporated www.diodes.com 74AHCT126 Document number: DS35356 Rev. 3 - 2 9 of 9 www.diodes.com April 2015 © Diodes Incorporated