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For Reference Only

Part Number 74AC540SCX
Manufacturer ON Semiconductor
Datasheet 74AC540SCX Datasheet
Package 20-SOIC (0.295", 7.50mm Width)
In Stock 104 piece(s)
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Estimated Delivery Time Dec 12 - Dec 17 (Choose Expedited Shipping)
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74AC540SCX Specifications

ManufacturerON Semiconductor
CategoryIntegrated Circuits (ICs) - Logic - Buffers, Drivers, Receivers, Transceivers
Datasheet 74AC540SCX Datasheet
Package20-SOIC (0.295", 7.50mm Width)
Logic TypeBuffer, Inverting
Number of Elements1
Number of Bits per Element8
Output Type3-State
Current - Output High, Low24mA, 24mA
Voltage - Supply2 V ~ 6 V
Operating Temperature-40°C ~ 85°C (TA)
Mounting TypeSurface Mount
Package / Case20-SOIC (0.295", 7.50mm Width)
Supplier Device Package20-SOIC

74AC540SCX Datasheet

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To learn more about ON Semiconductor, please visit our website at www.onsemi.com Please note: As part of the Fairchild Semiconductor integration, some of the Fairchild orderable part numbers will need to change in order to meet ON Semiconductor’s system requirements. Since the ON Semiconductor product management systems do not have the ability to manage part nomenclature that utilizes an underscore (_), the underscore (_) in the Fairchild part numbers will be changed to a dash (-). This document may contain device numbers with an underscore (_). Please check the ON Semiconductor website to verify the updated device numbers. The most current and up-to-date ordering information can be found at www.onsemi.com. Please email any questions regarding the system integration to Fairchild_questions@onsemi.com. Is Now Part of ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.

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© 2005 Fairchild Semiconductor Corporation Ds009966 www.fairchildsemi.com November 1988 Revised March 2005 7 4 A C 5 4 0 O c ta l B u ffe r/L in e D riv e r w ith 3 -S T A T E O u tp u ts 74AC540 Octal Buffer/Line Driver with 3-STATE Outputs General Description The AC540 is an octal buffer/line drivers designed to be employed as memory and address drivers, clock drivers and bus oriented transmitter/receivers. These devices are similar in function to the AC240 while providing flow-through architecture (inputs on opposite side from outputs). This pinout arrangement makes these devices especially useful as output ports for microproces- sors, allowing ease of layout and greater PC board density. Features ■ ICC and IOZ reduced by 50% ■3-STATE inverting outputs ■ Inputs and outputs opposite side of package, allowing easier interface to microprocessors ■Output source/sink 24 mA Ordering Code: Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. Pb-Free package per JEDEC J-STD-020B. Logic Symbol IEEE/IEC Connection Diagram Truth Table H HIGH Voltage Level X Immaterial L LOW Voltage Level Z High Impedance FACT¥ is a trademark of Fairchild Semiconductor Corporation. Order Number Package Number Package Description 74AC540SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 74AC540SJ M20D Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74AC540MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 74AC540PC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Inputs Outputs OE1 OE2 I L L H L H X X Z X H X Z L L L H

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www.fairchildsemi.com 2 7 4 A C 5 4 0 Absolute Maximum Ratings(Note 1) Recommended Operating Conditions Note 1: Absolute maximum ratings are those values beyond which damage to the device may occur. The databook specifications should be met, with- out exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading variables. Fairchild does not recommend operation of FACT¥ circuits outside databook specifications. DC Electrical Characteristics Note 2: All outputs loaded; thresholds on input associated with output under test. Note 3: Maximum test duration 2.0 ms, one output loaded at a time. Note 4: IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC. Supply Voltage (VCC) 0.5V to 7.0V DC Input Diode Current (IIK) VI 0.5V 20 mA VI VCC  0.5V 20 mA DC Input Voltage (VI) 0.5V to VCC  0.5V DC Output Diode Current (IOK) VO 0.5V 20 mA VO VCC  0.5V 20 mA DC Output Voltage (VO) 0.5V to VCC  0.5V DC Output Source or Sink Current (IO) r50 mA DC VCC or Ground Current per Output Pin (ICC or IGND) r50 mA Storage Temperature (TSTG) 65qC to 150qC Junction Temperature (TJ) PDIP 140qC Supply Voltage (VCC) 2.0V to 6.0V Input Voltage (VI) 0V to VCC Output Voltage (VO) 0V to VCC Operating Temperature (TA) 40qC to 85qC Minimum Input Edge Rate ('V/'t) 125 mV/ns VIN from 30% to 70% of VCC VCC @ 3.3V, 4.5V, 5.5V Symbol Parameter VCC TA 25qC TA 40q C to 85qC Units Conditions (V) Typ Guaranteed Limits VIH Minimum HIGH Level 3.0 1.5 2.1 2.1 VOUT 0.1V Input Voltage 4.5 2.25 3.15 3.15 V or VCC  0.1V 5.5 2.75 3.85 3.85 VIL Maximum LOW Level 3.0 1.5 0.9 0.9 VOUT 0.1V Input Voltage 4.5 2.25 1.35 1.35 V or VCC  0.1V 5.5 2.75 1.65 1.65 VOH Minimum HIGH Level 3.0 2.99 2.9 2.9 Output Voltage 4.5 4.49 4.4 4.4 V IOUT 50 PA 5.5 5.49 5.4 5.4 VIN VIL or VIH 3.0 2.56 2.46 IOH 12 mA 4.5 3.86 3.76 V IOH 24 mA 5.5 4.86 4.76 IOH 24 mA (Note 2) VOL Maximum LOW Level 3.0 0.002 0.1 0.1 Output Voltage 4.5 0.001 0.1 0.1 V IOUT 50 PA 5.5 0.001 0.1 0.1 VIN VIL or VIH 3.0 0.36 0.44 IOL 12 mA 4.5 0.36 0.44 V IOL 24 mA 5.5 0.36 0.44 IOL 24 mA (Note 2) IIN Maximum Input 5.5 r0.1 r1.0 PA VI VCC, GND (Note 4) Leakage Current IOZ Maximum 3-STATE VI (OE) VIL, VIH Current 5.5 r0.25 r2.5 PA VI VCC, GND VO VCC, GND IOLD Minimum Dynamic 5.5 75 mA VOLD 1.65V Max IOHD Output Current (Note 3) 5.5 75 mA VOHD 3.85V Min ICC Maximum Quiescent 5.5 4.0 40.0 PA VIN VCC (Note 4) Supply Current or GND

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3 www.fairchildsemi.com 7 4 A C 5 4 0 AC Electrical Characteristics Note 5: Voltage Range 3.3 is 3.3V r 0.3V Voltage Range 5.0 is 5.0V r 0.5V Capacitance VCC TA 25qC TA 40qC to 85qC Symbol Parameter (V) CL 50 pF CL 50 pF Units (Note 5) Min Typ Max Min Max tPLH Propagation Delay 3.3 1.5 5.5 7.5 1.0 8.0 ns Data to Output 5.0 1.5 4.0 6.0 1.0 6.5 tPHL Propagation Delay 3.3 1.5 5.0 7.0 1.0 7.5 ns Data to Output 5.0 1.5 4.0 5.5 1.0 6.0 tPZH Output Enable Time 3.3 3.0 8.5 11.0 2.5 12.0 ns 5.0 2.0 6.5 8.5 2.0 9.5 tPZL Output Enable Time 3.3 2.5 7.5 10.0 2.0 11.0 ns 5.0 2.0 6.0 7.5 1.5 8.5 tPHZ Output Disable Time 3.3 2.5 8.5 13.0 1.5 14.0 ns 5.0 1.5 7.5 10.5 1.0 11.0 tPLZ Output Disable Time 3.3 2.5 7.0 10.0 2.0 11.0 ns 5.0 1.5 6.0 8.0 1.5 9.0 Symbol Parameter Typ Units Conditions CIN Input Capacitance 4.5 pF VCC OPEN CPD Power Dissipation Capacitance 30.0 pF VCC 5.0V

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www.fairchildsemi.com 4 7 4 A C 5 4 0 Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Package Number M20B

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5 www.fairchildsemi.com 7 4 A C 5 4 0 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M20D

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www.fairchildsemi.com 6 7 4 A C 5 4 0 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package Number MTC20

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7 www.fairchildsemi.com 7 4 A C 5 4 0 O c ta l B u ffe r/L in e D riv e r w ith 3 -S T A T E O u tp u ts Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Package Number N20A Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be rea- sonably expected to result in a significant injury to the user. 2. A critical component in any component of a life support device or system whose failure to perform can be rea- sonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com

74AC540SCX Guarantees

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