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74AHCT126 Dataheets PDF



Part Number 74AHCT126
Manufacturers Diodes
Logo Diodes
Description QUADRUPLE 3-STATE BUFFERS
Datasheet 74AHCT126 Datasheet74AHCT126 Datasheet (PDF)

74AHCT126 QUADRUPLE 3-STATE BUFFERS OE HIGH Description 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. Pin Assignments Features • Wide Supply Voltage Range from 4.5V to 5.5V • Inputs Are TTL Voltage Level Compatible • Outputs Sink or Source 8mA at VCC.

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74AHCT126 QUADRUPLE 3-STATE BUFFERS OE HIGH Description 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. Pin Assignments 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 • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) • Halogen and Antimony Free. “Green” Device (Note 3) Applications • 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 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 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 Ordering Information 74AHCT126 Part Number 74AHCT126S14-13 74AHCT126T14-13 Package Code S14 T14 Packaging SO-14 TSSOP-14 7” Tape and Reel Quantity Part Number Suffix 2,500/Tape & Reel -13 2,500/Tape & Reel -13 Pin Descriptions Pin Number Pin Name 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 Function Data Enable Input (active high) Data Input Data Output Data Enable Input (active high) Data Input Data Output Ground Data Output Data Input Data Enable Input (active high) Data Output Data Input Data Enable Input (active high) Supply Voltage Function Table Inputs OE H H L A H L X Output Y H L Z Logic Diagram 74AHCT126 Document number: DS35356 Rev. 3 - 2 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 Description Human Body Model ESD Protection Charged Device Model ESD Protection Machine Model ESD Protection Rating 2 1 200 Unit kV kV V VCC VI IIK IOK IOK IO ICC IGND TJ TSTG PTOT Supply Voltage Range Input Voltage Range Input Clamp Current VI < -0.5V Output Clamp Current VO < 0 V Output Clamp Current VO > VCC Continuous Output Current 0V < VO < VCC Continuous Current Through VCC Continuous Current Through GND Operating Junction Temperature Storage Temperature Total Power Dissipation -0.5 to +7.0 -0.5 to +7.0 -20 -20 20 +/- 25 50 -50 -40 to +150 -65 to +150 500 V V mA mA mA mA mA mA °C °C mW 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 Parameter VCC VI VO ∆t/∆V Supply Voltage Input Voltage Output Voltage Input transition Rise or Fall Rate TA Operating Free-Air Temperature Note: 5. Unused inputs should be held at VCC or Ground. Min Max Unit 4.5 5.5 V 0 5.5 V 0 VCC V - 20 ns/V -40 +125 °C 74AHCT126 Document number: DS35356 Rev. 3 - 2 3 of 9 www.diodes.com April 2015 © Diodes Incorporated Electrical Characteristics Symbol Parameter Test Conditions VIH VIL VOH VOL IOZ II ICC ∆ICC High-Level Input Voltage Low-Level Input Voltage - High-Level Output IOH = -50µA Voltage IOH = -8mA Low-Level Output Voltage Z State Leakage Current IOL = 50µA IOL = 8mA VO = 0 to 5.5V Input Current VI = GND to 5.5V Supply Current VI = GND or VCC, IO = 0 Additional Supply One input at VCC –2.1V Current Other pins at VCC or GND 74AHCT126 Vcc 4.5V to 5.5V 4.5V to 5.5V 4.5V 4.5V 4.5V 4.5V 5.5V 3.6V 3.6V 5.5V TA = -40°C to +85°C Min Max 2.0 - - 0.8 4.4 3.80 - - 0.1 - 0.44 - ±2.5 - ±1 - 20 - 1.35 TA = -40°C to +125°C Min Max 2.0 - - 0.8 4.4 3.70 - - 0.1 - 0.55 - ±10 - ±2 - 40 -5 Unit V V V V µA µA µA mA Operating Characteristics Parameter Test Conditions Cpd Power Dissipation Capacitance per Gate f = 1MHz Ci Input Capacitance Vi = VCC – or GND VCC = 5.5V Typ 14.8 4.0 Unit pF pF Switching Characteristics (VCC = 4.5V to 5.5V) Symbol Parameter Test Conditions tPD Propagation Delay AN to YN Figure 1 CL = 15pF Figure 1 CL = 50pF tEN Enable Time OEN to YN Figure 1 CL = 15 pF Figure 1 CL = 50pF tDIS Disable Time OEN to YN Figure 1 CL = 15pF Figure 1 CL = 50pF TA = +25.


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