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| SN74LS541 Octal Buffer/Line Driver with 3-State Outputs The SN74LS541 is an octal buffer and line driver with the same functions as the LS241, but with pinouts on the opposite side of the package. This device type is designed to be used as a memory address driver, clock driver and bus-oriented transmitter / receiver. This device is especially useful as output ports for the microprocessors, allowing ease of layout and greater PC board density. http://onsemi.com * * * * * Hysteresis at Inputs to Improve Noise Margin PNP Inputs Reduce Loading 3-State Outputs Drive Bus Lines Inputs and Outputs Opposite Side of Package, Allowing Easier Interface to Microprocessors Input Clamp Diodes Limit High-Speed Termination Effects LOGIC AND CONNECTION DIAGRAM DIP (TOP VIEW) VCC 20 19 18 17 16 15 14 13 12 11 20 LOW POWER SCHOTTKY 1 PLASTIC N SUFFIX CASE 738 1 2 3 4 5 6 7 8 9 10 GND 20 1 GUARANTEED OPERATING RANGES Symbol VCC TA IOH IOL Parameter Supply Voltage Operating Ambient Temperature Range Output Current - High Output Current - Low Min 4.75 0 Typ 5.0 25 Max 5.25 70 - 15 24 Unit V C mA mA SOIC DW SUFFIX CASE 751D ORDERING INFORMATION Device SN74LS541N SN74LS541DW Package 16 Pin DIP 16 Pin Shipping 1440 Units/Box 2500/Tape & Reel (c) Semiconductor Components Industries, LLC, 1999 1 December, 1999 - Rev. 0 Publication Order Number: SN74LS541/D SN74LS541 BLOCK DIAGRAM E1 E2 (2) (18) (1) (19) INPUTS E1 Y1 L H X L E2 L X H L D H X X L OUTPUTS LS540 L Z Z H LS541 H Z Z L D1 D2 D3 D4 D5 D6 D7 D8 (3) (4) (5) (6) (7) (8) (9) (17) (16) (15) (14) (13) Y2 Y3 Y4 Y5 Y6 L = LOW Voltage Level H = HIGH Voltage Level X = Immaterial Z = High Impedance (12) Y7 (11) Y8 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol VIH VIL VIK VO OH Parameter Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage 2.4 Output HIGH Voltage 2.0 0.25 VO OL VT+-VT- IOZH IOZL IIH IIL IOS Output LOW Voltage 0.35 Hysteresis Output Off Current HIGH Output Off Current LOW Input HIGH Current 0.1 Input LOW Current Short Circuit Current (Note 1) Power Supply Current Total, Output HIGH ICC Total, Output LOW Total Output 3-State - 40 - 0.2 - 225 32 52 55 0.2 0.4 20 - 20 20 0.5 V V A A A mA mA mA mA mA mA VCC = MAX IOL = 24 mA VCC = MIN VCC = MAX, VOUT = 2.7 V VCC = MAX, VOUT = 0.4 V VCC = MAX, VIN = 2.7 V VCC = MAX, VIN = 7.0 V VCC = MAX, VIN = 0.4 V VCC = MAX 0.4 V V - 0.65 3.4 Min 2.0 0.8 - 1.5 Typ Max Unit V V V V Test Conditions Guaranteed Input HIGH Voltage for All Inputs Guaranteed Input LOW Voltage for All Inputs VCC = MIN, IIN = - 18 mA VCC = MIN, IOH = - 3.0 mA VCC = MIN, IOH = MAX, VIL = 0.5 V IOL = 12 mA VCC = VCC MIN, VIN = VIL or VIH per Truth Table Note 1: Not more than one output should be shorted at a time, nor for more than 1 second. http://onsemi.com 2 SN74LS541 AC CHARACTERISTICS (TA = 25C) Limits Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ Parameter Propagation Delay, g y Data to Output Output Enable Time to HIGH Level Output Enable Time to LOW Level Output Disable Time to HIGH Level Output Disable Time to LOW Level Min Typ 12 12 15 20 10 15 Max 15 ns 18 32 38 18 29 ns ns ns CL = 5 0 pF 5.0 ns VCC = 5 0 V 5.0 CL = 45 pF RL = 667 Unit Test Conditions AC WAVEFORMS VCC VIN 1.3 V tPLH VOUT 1.3 V 1.3 V tPHL 1.3 V SW1 RL Figure 1. TO OUTPUT UNDER TEST VIN 1.3 V tPLH VOUT 1.3 V 1.3 V tPHL 1.3 V CL* 5 k SW2 Figure 2. VE VE VOUT 1.5 V tPZL 1.5 V 1.5 V tPLZ 1.5 V VOL 0.5 V SWITCH POSITIONS SYMBOL tPZH tPZL tPLZ SW1 Open Closed Closed Closed SW2 Closed Open Closed Closed Figure 3. VE 1.5 V VE VOUT tPZH 1.5 V 1.5 V tPHZ VOH 1.5 V 0.5 V tPHZ Figure 4. Figure 5. http://onsemi.com 3 SN74LS541 PACKAGE DIMENSIONS N SUFFIX PLASTIC PACKAGE CASE 738-03 ISSUE E -A- 20 11 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. INCHES MIN MAX 1.010 1.070 0.240 0.260 0.150 0.180 0.015 0.022 0.050 BSC 0.050 0.070 0.100 BSC 0.008 0.015 0.110 0.140 0.300 BSC 0_ 15 _ 0.020 0.040 MILLIMETERS MIN MAX 25.66 27.17 6.10 6.60 3.81 4.57 0.39 0.55 1.27 BSC 1.27 1.77 2.54 BSC 0.21 0.38 2.80 3.55 7.62 BSC 0_ 15_ 0.51 1.01 B 1 10 C L -T- SEATING PLANE K M E G F D 20 PL N J 0.25 (0.010) M 20 PL 0.25 (0.010) TA M M TB M DIM A B C D E F G J K L M N http://onsemi.com 4 SN74LS541 PACKAGE DIMENSIONS D SUFFIX PLASTIC SOIC PACKAGE CASE 751D-05 ISSUE F D A 11 X 45 _ q NOTES: 1. DIMENSIONS ARE IN MILLIMETERS. 2. INTERPRET DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 1994. 3. DIMENSIONS D AND E DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE PROTRUSION SHALL BE 0.13 TOTAL IN EXCESS OF B DIMENSION AT MAXIMUM MATERIAL CONDITION. MILLIMETERS MIN MAX 2.35 2.65 0.10 0.25 0.35 0.49 0.23 0.32 12.65 12.95 7.40 7.60 1.27 BSC 10.05 10.55 0.25 0.75 0.50 0.90 0_ 7_ H M B M 20 10X 0.25 E 1 10 h 20X B 0.25 M B TA S B S A SEATING PLANE DIM A A1 B C D E e H h L L 18X e A1 q T C http://onsemi.com 5 SN74LS541 Notes http://onsemi.com 6 SN74LS541 Notes http://onsemi.com 7 SN74LS541 ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC 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. "Typical" parameters which may be provided in SCILLC 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. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC 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 SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. PUBLICATION ORDERING INFORMATION North America Literature Fulfillment: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: ONlit@hibbertco.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada EUROPE: LDC for ON Semiconductor - European Support German Phone: (+1) 303-308-7140 (M-F 2:30pm to 5:00pm Munich Time) Email: ONlit-german@hibbertco.com French Phone: (+1) 303-308-7141 (M-F 2:30pm to 5:00pm Toulouse Time) Email: ONlit-french@hibbertco.com English Phone: (+1) 303-308-7142 (M-F 1:30pm to 5:00pm UK Time) Email: ONlit@hibbertco.com ASIA/PACIFIC: LDC for ON Semiconductor - Asia Support Phone: 303-675-2121 (Tue-Fri 9:00am to 1:00pm, Hong Kong Time) Toll Free from Hong Kong 800-4422-3781 Email: ONlit-asia@hibbertco.com JAPAN: ON Semiconductor, Japan Customer Focus Center 4-32-1 Nishi-Gotanda, Shinagawa-ku, Tokyo, Japan 141-8549 Phone: 81-3-5487-8345 Email: r14153@onsemi.com Fax Response Line: 303-675-2167 800-344-3810 Toll Free USA/Canada ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative. http://onsemi.com 8 SN74LS541/D |
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