Document
74HC126
QUADRUPLE 3-STATE BUFFERS OE HIGH
Description
The 74HC126 provides 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 2.0V to 6.0V.
Pin Assignments
Features
• Wide Supply Voltage Range from 2.0V to 6.0V • Sinks or sources 4mA at VCC = 4.5V • CMOS low power consumption • Schmitt Trigger Action at All Inputs • 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) • 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 ROM TV, DVD, DVR, Set Top Box
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.
74HC126
Document number: DS35327 Rev. 3 - 2
1 of 9 www.diodes.com
January 2013
© Diodes Incorporated
Pin Descriptions
Pin Number
1 2 3 4 5 6 7 8 9 10 11 12 13 14
Pin Name
1OE 1A 1Y 2OE 2A 2Y GND 3Y 3A 3OE 4Y 4A 4OE Vcc
Logic Diagram
Function
Data Enable Input (active low) Data Input Data Output
Data Enable Input (active low) Data Input Data Output Ground Data Output Data Input
Data Enable Input (active low) Data Outp Data Input
Data Enable Input (active low) Supply Voltage
74HC126
Function Table
Inputs OE H H L
A H L X
Output Y H L Z
74HC126
Document number: DS35327 Rev. 3 - 2
2 of 9 www.diodes.com
January 2013
© Diodes Incorporated
74HC126
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 IO ICC IGND TJ TSTG PTOT
Supply Voltage Range Input Voltage Range (Note 5) Input Clamp Current VI < -0.5V or Vi > VCC +0.5V Output Clamp Current VO < -0.5V or VO > VCC +0.5V Continuous Output Current -0.5V < VO VCC +0.5V 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 +/- 25 50 -50 -40 to +150 -65 to +150 500
V V mA mA mA mA mA °C °C mW
Notes:
4. Stresses beyond the absolute maximum may result in immediate failure or reduced reliability. These are stress values and device operation should b.