 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS The SN54/ 74LS540 and SN54 / 74LS541 are octal buffers and line drivers with the same functions as the LS240 and LS241, but with pinouts on the opposite side of the package. These device types are designed to be used as memory address drivers, clock drivers and bus-oriented transmitters / receivers. These devices are especially useful as output ports for the microprocessors, allowing ease of layout and greater PC board density. SN54/74LS540 SN54/74LS541 OCTAL BUFFER/ LINE DRIVER WITH 3-STATE OUTPUTS LOW POWER SCHOTTKY * * * * 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 DIAGRAMS DIP (TOP VIEW) VCC 20 19 20 1 J SUFFIX CERAMIC CASE 732-03 SN54 / 74LS540 18 17 16 15 14 13 12 11 20 1 N SUFFIX PLASTIC CASE 738-03 1 2 3 4 5 6 7 8 9 10 GND 20 1 DW SUFFIX SOIC CASE 751D-03 VCC 20 19 SN54 / 74LS541 18 17 16 15 14 13 12 11 ORDERING INFORMATION SN54LSXXXJ Ceramic SN74LSXXXN Plastic SN74LSXXXDW SOIC 1 2 3 4 5 6 7 8 9 10 GND GUARANTEED OPERATING RANGES Symbol VCC TA IOH IOL Supply Voltage Operating Ambient Temperature Range Output Current -- High Output Current -- Low Parameter 54 74 54 74 54 74 54 74 Min 4.5 4.75 - 55 0 Typ 5.0 5.0 25 25 Max 5.5 5.25 125 70 - 12 - 15 12 24 Unit V C mA mA FAST AND LS TTL DATA 5-568 SN54/74LS540 * SN54/74LS541 BLOCK DIAGRAM LS540 (1) E1 E2 (19) E1 E2 (1) (19) LS541 INPUTS E1 E2 L X H L D H X X L (2) (18) Y1 OUTPUTS LS540 L Z Z H LS541 H Z Z L (2) D1 (18) Y1 D1 (3) D2 (4) D3 (5) (17) Y2 (16) Y3 (15) Y4 D3 D2 (3) (17) Y2 L H X L (4) (16) Y3 D4 D4 (5) (15) Y4 L = LOW Voltage Level H = HIGH Voltage Level X = Immaterial Z = High Impedance (6) D5 (7) D6 (8) D7 (9) D8 (14) Y5 (13) Y6 (12) Y7 (11) Y8 D8 D7 D6 D5 (6) (14) Y5 (7) (13) Y6 (8) (12) Y7 (9) (11) Y8 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol VIH VIL VIK VOH Parameter Input HIGH Voltage 54 Input LOW Voltage 74 Input Clamp Diode Voltage 54, 74 Output HIGH Voltage 54, 74 54, 74 VOL VT+-VT- IOZH IOZL IIH IIL IOS Output LOW Voltage 74 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 LS540 LS541 ICC LS540 Total, Output LOW LS541 LS540 LS541 - 40 - 0.2 - 225 25 32 45 52 52 55 0.2 0.35 0.4 20 - 20 20 0.5 V V A A A mA mA mA mA mA mA mA mA mA VCC = MAX 2.0 0.25 0.4 V V 2.4 - 0.65 3.4 0.8 - 1.5 V V Min 2.0 0.7 V Typ Max Unit 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 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 VCC = VCC MIN, VIN = VIL or VIH per Truth Table Total Output 3-State Note 1: Not more than one output should be shorted at a time, nor for more than 1 second. FAST AND LS TTL DATA 5-569 SN54/74LS540 * SN54/74LS541 AC CHARACTERISTICS (TA = 25C) Limits Symbol tPLH tPLH tPHL tPHL tPZH Output Enable Time to HIGH Level Output Enable Time to LOW Level Output Disable Time to HIGH Level Output Disable Time to LOW Level Propagation Delay, Data to Output Parameter LS540 LS541 LS540 LS541 LS540 LS541 LS540 LS541 LS540 LS541 LS540 LS541 Min Typ 9.0 12 12 12 15 15 20 20 10 10 15 15 Max 15 15 ns 15 18 25 ns 32 38 ns 38 18 ns 18 25 ns 29 CL = 5.0 pF VCC = 5.0 V CL = 45 pF RL = 667 Unit Test Conditions tPZL tPHZ tPLZ 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 5 k 1.3 V CL* SW2 Figure 2 VE VE 1.5 V tPZL 1.5 V 1.5 V tPLZ VOUT 1.5 V VOL 0.5 V SWITCH POSITIONS SYMBOL tPZH SW1 Open Closed Closed Closed SW2 Closed Open Closed Closed Figure 3 VE 1.5 V VE tPZH VOUT 1.5 V 1.5 V tPHZ tPZL tPLZ tPHZ VOH 1.5 V 0.5 V Figure 4 Figure 5 FAST AND LS TTL DATA 5-570 Case 751D-03 DW Suffix 20-Pin Plastic SO-20 (WIDE) -A20 11 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. 3. CONTROLLING DIMENSION: MILLIMETER. DIMENSION A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. -B1 10 P 0.25 (0.010) M B M 5. 751D 01, AND 02 OBSOLETE, NEW STANDARD 751D 03. 10 PL G R X 45 -TC K M SEATING PLANE M D 20 PL 0.25 (0.010) T B S F J DIM A B C D F G J K M P R MILLIMETERS MIN MAX 12.65 7.40 2.35 0.35 0.50 12.95 7.60 2.65 0.49 0.90 INCHES MIN MAX 0.499 0.292 0.093 0.014 0.020 0.510 0.299 0.104 0.019 0.035 1.27 BSC 0.25 0.10 0 10.05 0.25 0.32 0.25 7 10.55 0.75 0.050 BSC 0.010 0.004 0 0.395 0.010 0.012 0.009 7 0.415 0.029 A S Case 732-03 J Suffix 20-Pin Ceramic Dual In-Line NOTES: 1. LEADS WITHIN 0.25 mm (0.010) DIA., TRUE POSITION AT SEATING PLANE, AT MAXIMUM 20 1 11 2. MATERIAL CONDITION. DIM L TO CENTER OF LEADS WHEN FORMED PARALLEL. 10 3. DIM A AND B INCLUDES MENISCUS. B A F C L N H D SEATING PLANE J M G K DIM A B C D F G H J K L M N MILLIMETERS MIN MAX 23.88 6.60 3.81 0.38 1.40 25.15 7.49 5.08 0.56 1.65 INCHES MIN MAX 0.940 0.260 0.150 0.015 0.055 0.990 0.295 0.200 0.022 0.065 2.54 BSC 0.51 0.20 3.18 1.27 0.30 4.06 0.100 BSC 0.020 0.008 0.125 0.050 0.012 0.160 7.62 BSC 0 0.25 15 1.02 0.300 BSC 0 0.010 15 0.040 Case 738-03 N Suffix 20-Pin Plastic -A20 1 11 10 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. 3. CONTROLLING DIMENSION: INCH. DIMENSION L" TO CENTER OF LEAD WHEN FORMED PARALLEL. B C L 4. DIMENSION B" DOES NOT INCLUDE MOLD FLASH. 5. 738 02 OBSOLETE, NEW STANDARD 738 03. -TSEATING PLANE K E G F D 20 PL 0.25 (0.010) M N M J 20 PL 0.25 (0.010) T A M M T B M DIM A B C D E F G J K L M N MILLIMETERS MIN MAX 25.66 6.10 3.81 0.39 27.17 6.60 4.57 0.55 INCHES MIN MAX 1.010 0.240 0.150 0.015 1.070 0.260 0.180 0.022 1.27 BSC 1.27 1.77 0.050 BSC 0.050 0.070 2.54 BSC 0.21 2.80 0.38 3.55 0.100 BSC 0.008 0.110 0.015 0.140 7.62 BSC 0 0.51 15 1.01 0.300 BSC 0 0.020 15 0.040 FAST AND LS TTL DATA 5-571 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola 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 consequential or incidental damages. "Typical" parameters can and do vary in different applications. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola 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 Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola 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 Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. Literature Distribution Centers: USA: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. tPZH Open Closed EUROPE: Motorola Ltd.; European Literature Centre; 88 Tanners Drive, Blakelands, Milton Keynes, MK14 5BP, England. JAPAN: Nippon Motorola Ltd.; 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan. tPZL Closed Open ASIA PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Center, No. 2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong. SYMBOL SW1 SW2 tPLZ Closed Closed Closed Closed tPHZ FAST AND LS TTL DATA 5-572 |
Price & Availability of SN74LS540DW
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |