74AHC126 QUADRUPLE 3-STATE BUFFERS OE HIGH Description Pin Assignments The 74AHC126 provides provides four independent buffer gates with 3-state outputs. Each buffer has a separate enable pin that when 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 2.0V to 5.5V. The inputs are tolerant to 5.5V NEW PRODUCT allowing this device to be used in a mixed voltage environment. Features • Wide Supply Voltage Range from 2.0V to 5.5V • Outputs Sink or Source 8mA at VCC = 4.5V • CMOS Low Power Consumption • Schmitt Trigger Action at All Inputs • Inputs can be driven by 3.3V or 5.5V allowing for voltage translation applications. • Applications ESD Protection Exceeds JESD 22 200-V Machine Model (A115-A) 2000-V Human Body Model (A114-A) Exceeds 1000-V Charged Device Model (C101C) • 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) Notes: • General Purpose Logic • Wide array of products such as: PCs, Networking, Notebooks, Netbooks Computer Peripherals, Hard Drives, CD/DVD ROM TV, DVD, DVR, Set Top Box 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. Click here for ordering information, located at the end of datasheet 74AHC126 Document number: DS35346 Rev. 3 - 2 1 of 9 www.diodes.com January 2013 © Diodes Incorporated 74AHC126 NEW PRODUCT 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 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 low) (active low) (active low) (active low) Supply Voltage Function Table OE H H Inputs A H L Output Y H L L X Z Absolute Maximum Ratings (Note 4) (@TA = +25°C, unless otherwise specified.) Symbol ESD HBM ESD CDM ESD MM VCC Supply Voltage Range Rating 2 1 200 Unit KV KV V -0.5 to +7.0 V VI Input Voltage Range -0.5 to +7.0 V IIK Input Clamp Current VI < -0.5V -20 mA IOK Output Clamp Current VO < -0.5V -20 mA IOK Output Clamp Current 25 mA +/- 25 mA VO > VCC +0.5V IO Continuous Output Current -0.5V < VO VCC +0.5V ICC Continuous Current Through VCC 75 mA IGND Continuous Current Through GND -75 mA Operating Junction Temperature -40 to +150 °C TSTG Storage Temperature -65 to +150 °C PTOT Total Power Dissipation 500 mW TJ Note: Description Human Body Model ESD Protection Charged Device Model ESD Protection Machine Model ESD Protection 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. 74AHC126 Document number: DS35346 Rev. 3 - 2 2 of 9 www.diodes.com January 2013 © Diodes Incorporated 74AHC126 NEW PRODUCT Recommended Operating Conditions (Note 5) (@TA = +25°C, unless otherwise specified.) Symbol Parameter Min Max Unit VCC Supply Voltage 2.0 5.5 V VI Input Voltage 0 5.5 V VO Output Voltage 0 VCC V Δt/ΔV Input Transition Rise or Fall Rate VCC = 3.0V to 3.6V 100 VCC = 4.5V to 5.5V 20 Operating Free-Air Temperature TA Note: Conditions -40 ns/V +125 °C 5. Unused inputs should be held at VCC or Ground. Electrical Characteristics (@TA = +25°C, unless otherwise specified.) Symbol Parameter VIH High-Level Input Voltage VIL VOH VOL Test Conditions Low-Level Input Voltage Min Max TA = -40°C to +125°C Min 2.0V 1.5 1.5 3.0V 2.1 2.1 5.5V 3.85 Max Unit V 3.85 2.0V 0.5 3.0V 0.9 0.5 0.9 5.5V 1.65 1.65 2.0V 1.9 1.9 IOH = -50μA 3.0V 2.9 2.9 IOH = -50μA 4.5V 4.4 4.4 IOH = -4mA 3.0V 2.48 2.40 IOH = -8mA 4.5V 3.80 IOL = 50μA 2.0V 0.1 0.1 IOL = 50μA 3.0V 0.1 0.1 IOL = 50μA 4.5V 0.1 0.1 IOL = 4mA 3.0V 0.44 0.55 IOL = 8mA 4.5V 0.44 0.55 VO = 0 to 5.5V VI = GND or 5.5V 5.5V ±2.5 ±10 Low-Level Output Voltage Z State Leakage Current TA = -40°C to +85°C IOH = -50μA High-Level Output Voltage IOZ VCC V V 3.70 V μA II Input Current VI = GND to 5.5V 3.6V ±1 ±2 μA ICC Supply Current VI = GND or VCC, IO = 0 3.6V 20 40 μA 74AHC126 Document number: DS35346 Rev. 3 - 2 3 of 9 www.diodes.com January 2013 © Diodes Incorporated 74AHC126 Operating Characteristics NEW PRODUCT Parameter Test Conditions VCC = 2.0V Typ VCC = 3.3V Typ VCC = 5V Typ Unit Cpd Power Dissipation Capacitance per Gate f = 1MHz 10.1 13.1 15 pF Ci Input Capacitance Vi = VCC – or GND 4.0 4.0 4.0 pF Switching Characteristics Symbol Parameter tPD Propagation Delay AN to YN tEN tDIS Enable Time OEN to YN Disable Time OEN to YN Test Conditions VCC Figure 1 CL = 15pF 3.0V to 3.6V 4.5V to 5.5V Figure 1 CL = 50pF Figure 1 CL = 15 pF Figure 1 CL = 50pF Figure 1 CL = 15 pF Figure 1 CL = 50pF 74AHC126 Document number: DS35346 Rev. 3 - 2 -40°C to +85°C TA = +25°C Min Min Max 9.5 -40°C to +125°C Min 0.5 Max 11.5 Max 0.5 Typ 4.4 8.0 0.5 0.5 3.0 5.5 0.5 6.5 0.5 7.0 3.0V to 3.6V 0.5 6.2 11.5 0.5 13.0 0.5 14.5 4.5V to 5.5 V 0.5 4.3 7.5 0.5 8.5 0.5 9.5 9.5 0.5 11.5 3.0V to 3.6V 0.5 4.7 8.0 0.5 4.5V to 5.5V 0.5 3.3 5.1 0.5 6.0 0.5 7.5 3.0V to 3.6V 0.5 6.8 11.5 0.5 13.0 0.5 14.5 4.5V to 5.5V 0.5 4.7 7.1 0.5 8.0 0.5 9.0 11.5 0.5 12.5 3.0V to 3.6V 0.5 6.7 9.7 0.5 4.5V to 5.5V 0.5 4.8 6.8 0.5 8.0 0.5 8.5 3.0V to 3.6V 0.5 9.6 13.2 0.5 15.0 0.5 16.5 4.5V to 5.5V 0.5 6.8 8.8 0.5 10.0 0.5 11.0 4 of 9 www.diodes.com Unit ns ns ns January 2013 © Diodes Incorporated 74AHC126 Parameter Measurement Information NEW PRODUCT TEST tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Inputs S1 Open Vload GND tr/tf ≤3ns VM VLOAD CL RL V∆ 3.3V±0.3V VI 3V VCC/2 VCC 15,50 pF 1KΩ 0.3 V 5V±0.5V VCC ≤3ns VCC/2 VCC 15,50 pF 1KΩ 0.3 V VCC Voltage Waveform Pulse Duration 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. 74AHC126 Document number: DS35346 Rev. 3 - 2 5 of 9 www.diodes.com January 2013 © Diodes Incorporated 74AHC126 NEW PRODUCT Ordering Information Device Package Code Packaging 74AHC126S14-13 74AHC126T14-13 S14 T14 SO-14 TSSOP-14 Quantity 2500/Tape & Reel 2500/Tape & Reel Part Number 74AHC126S14 74AHC126T14 Package SO-14 TSSOP-14 7” Tape and Reel Part Number Suffix -13 -13 Marking Information (1) SO-14, TSSOP-14 74AHC126 Document number: DS35346 Rev. 3 - 2 6 of 9 www.diodes.com January 2013 © Diodes Incorporated 74AHC126 Package Outline Dimensions (All dimensions in mm.) Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version. Package Type: SO-14 H NEW PRODUCT 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 0° 8° θ 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’ 74AHC126 Document number: DS35346 Rev. 3 - 2 7 of 9 www.diodes.com January 2013 © Diodes Incorporated 74AHC126 Suggested Pad Layout Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version. Package Type: SO-14 NEW PRODUCT X C1 C2 Dimensions Value (in mm) X 0.60 Y 1.50 C1 5.4 C2 1.27 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 74AHC126 Document number: DS35346 Rev. 3 - 2 8 of 9 www.diodes.com January 2013 © Diodes Incorporated 74AHC126 IMPORTANT NOTICE NEW PRODUCT 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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