DM74ALS540A FAIRCHILD | Alldatasheet

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Technical content

Features

■ Advanced oxide-isolated, ion-implanted Schottky TTL process ■ Switching performance is guaranteed over full tempera- ture and VCC supply range ■ Data flow-thru pinout (All inputs on opposite side from outputs) ■ P-N-P inputs reduce DC loading Ordering Code: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Function Table H = HIGH Logic Level L = LOW Logic Level X = Don't Care (Either HIGH or LOW Logic Level) Hi-Z = High Impedance (OFF) State Order Number Package Number Package Description DM74ALS540AWM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide DM74ALS540ASJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide DM74ALS540AN N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Inputs Output G 1G 2A Y H X X Hi-Z X H X Hi-Z LLLH LLHL

www.fairchildsemi.com 2 DM74ALS540A Absolute Maximum Ratings(Note 1) Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended Operating Conditions” table will define the conditions for actual device operation. Recommended Operating Conditions

Electrical Characteristics

over recommended free air temperature range Switching Characteristics over recommended free air operating temperature range Supply Voltage 7V Input Voltage 7V Voltage Applied to a Disabled 3-STATE Output 5.5V Operating Free-Air Temperature Range 0 °C to +70°C Storage Temperature Range −65°C to +150°C Typical θ JA N Package 58.5 °C/W M Package 77.5 °C/W Symbol Parameter Min Nom Max Units VCC Supply Voltage 4.5 5 5.5 V VIH HIGH Level Input Voltage 2 V VIL LOW Level Input Voltage 0.7 V IOH HIGH Level Output Current −15 mA IOL LOW Level Output Current 24 mA TA Free Air Operating Temperature 0 70 °C Symbol Parameter Test Conditions Min Typ Max Units VIK Input Clamp Voltage V CC = Min, II = −18 mA −1.5 V VOH HIGH Level V CC = 4.5V to 5.5V I OH = −0.4 mA V CC − 2 Output Voltage V CC = Min I OH = −3 mA 2.4 3.2 V IOH = Max 2 VOL LOW Level V CC = Min I OL = 12 mA 0.25 0.4 mA Output Voltage I OL = 24 mA 0.35 0.5 II Input Current @ Maximum Input Voltage VCC = Max, VI = 7V 100 µA IIH HIGH Level Input Current V CC = Max, VI = 2.7V 20 µA IIL LOW Level Input Current V CC = Max, VI = 0.4V −100 µA IOZH HIGH Level 3-STATE Output Current VCC = Max, VO = 2.7V 20 µA IOZL LOW Level 3-STATE Output Current V CC = Max, VO = 0.4V −20 µA IO Output Drive Current V CC = Max, VO = 2.25V −30 −112 mA ICC Supply Current V CC = Max Outputs HIGH 5 10 Outputs LOW 13 22 mA Outputs Disabled 11 19 Symbol Parameter Conditions From (Input) Min Max Units To (Output) tPLH Propagation Delay Time V CC = 4.5V to 5.5V, A or B to Y 2 12 ns LOW-to-HIGH Level Output R 1 = R2 = 500Ω , tPHL Propagation Delay Time C L = 50 pF A or B to Y 2 9 ns HIGH-to-LOW Level Output tPZH Output Enable Time to HIGH Level Output G to Y 5 15 ns tPZL Output Enable Time to LOW Level Output G to Y 8 20 ns tPHZ Output Disable Time from HIGH Level Output G to Y 1 10 ns tPLZ Output Disable Time from LOW Level Output G to Y 2 12 ns

3 www.fairchildsemi.com DM74ALS540A Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide Package Number M20B

www.fairchildsemi.com 4 DM74ALS540A Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M20D

5 www.fairchildsemi.com DM74ALS540A Octal Inverting Buffer and Line Driver with 3-STATE Outputs 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