TEXAS INSTRUMENTS SN54ALS541 SN74ALS540 SN74ALS541 handbook
Contents
1. gt 1 20 0 022 0 56 0 i 0 015 0 38 0 050 1 27 0 005 0 13 MIN 4 Places di 4040180 4 D 07 03 NOTES All linear dimensions are in inches millimeters This drawing is subject to change without notice This package can be hermetically sealed with a ceramic lid using glass frit Index point is provided on cap for terminal identification only Falls within Mil Std 1835 GDFP2 F20 Ime 087 35 TEXAS INSTRUMENTS www ti com MECHANICAL DATA MLCCO06B OCTOBER 1996 FK S CQCC N LEADLESS CERAMIC CHIP CARRIER 28 TERMINAL SHOWN NO OF TERMINALS 18 17 16 15 14 13 12 20 28 44 52 68 26 27 28 1 0 020 0 51 0 080 2 03 0 010 0 25 d i 0 064 1 63 0 020 0 51 0 010 0 25 0 055 1 40 0 045 1 14 0 045 1 14 0 035 0 89 0 028 0 71 l 0 045 1 14 0 022 0 54 0 035 0 89 0 050 1 27 4040140 D 10 96 NOTES A Alllinear dimensions are in inches millimeters B This drawing is subject to change without notice C This package can be hermetically sealed with a metal lid D The terminals are gold plated E Falls within JEDEC MS 004 32. NOTES A Alllinear dimensions are in millimeters This drawing is subject to change without notice Body dimensions do not include mold flash or protrusion not to exceed 0 15 Falls within JEDEC MO 150 Dou 35 TEXAS INSTRUMENTS POST OFFICE BOX 655303 DALLAS TEXAS 75265 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries TI reserve the right to make corrections modifications enhancements improvements and other changes to its products and services at any time and to discontinue any product or service without notice Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete All products are sold subject to Tl s terms and conditions of sale supplied at the time of order acknowledgment TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with Tl s standard warranty Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty Except where mandated by government requirements testing of all parameters of each product is not necessarily performed TI assumes no liability for applications assistance or customer product design Customers are responsible for their products and applications using Tl components To minimize the risks associated with customer products and applications customers should provide adequate de
3. is current as of publication date Copyright 2002 Texas Instruments Incorporated Products conform to specifications per the terms of Texas Instruments Jj On products compliant to MIL PRF 38535 all parameters are tested standard warranty Production processing does not necessarily include 5 I 1 unless otherwise noted On all other products production testing of all parameters I EXAS processing does not necessarily include testing of all parameters POST OFFICE BOX 655303 DALLAS TEXAS 75265 1 SN54ALS541 SN74ALS540 SN74ALS541 OCTAL BUFFERS AND LINE DRIVERS WITH 3 STATE OUTPUTS SDASO25D APRIL 1982 REVISED MARCH 2002 ORDERING INFORMATION ORDERABLE TOP SIDE SN74ALS540N SN74ALS540N SN74ALS540 1N SN74ALS540 1N PDIP N Tube SN74ALS541N SN74ALS541N SN74ALS541 1N SN74ALS541 1N SN74ALS540DW ALS540 Tape and reel SN74ALS540DWR 0 C to 70 C SN74ALS540 1DW ALS540 1 SOIC DW SN74ALS541DW ALS541 Tape and reel SN74ALS541DWR SN74ALS541 1DW ALS541 1 Tape and reel SN74ALS541 1DWR Tape and reel SN74ALS540NSR ALS540 SN74ALS540 1NSR ALS540 1 SOP NS Tape and reel SN74ALS541NSR ALS541 SN74ALS541 1NSR ALS541 1 SN74ALS541DBR G541 SSOP DB Tape and reel SN74ALS541 1DBR G541 1 CDIP J SNJ54ALS541J SNJ54ALS541J 55 C to 125 C LCCC FK SNJ54ALS541FK SNJ54ALS541FK T Package drawings standard packing quantities thermal data symbolization and PCB design guidelines are available at www ti com sc package
4. logic diagrams positive logic SN74ALS540 ALS541 a si OET OET og 1 og 1 REL Ls 18 vy ar 2 5 18 v4 v v To Seven Other Channels To Seven Other Channels 35 TEXAS INSTRUMENTS 2 POST OFFICE BOX 655303 9 DALLAS TEXAS 75265 SN54ALS541 SN74ALS540 SN74ALS541 OCTAL BUFFERS AND LINE DRIVERS WITH 3 STATE OUTPUTS SDAS025D APRIL 1982 REVISED MARCH 2002 absolute maximum ratings over operating free air temperature unless otherwise noted t Supply voltage Voc beber be eee bg ee ae be ee Se ae 7M Input voltage VJ ass 4L At RATIS ARA NET eA le et he te Oe ek beak be eta Ae 7M Voltage applied to a disabled 3 state output 0 00 5 5V Package thermal impedance 9ja see Note 1 DB package 00a 70 C W DW package ise A adeuheee DDR RR ELO ELES 58 C W N package ecodor erini nRa AER ERIR 69 C W NS package sssssseessse essere 60 C W Storage temperature range Tstg sii ae eas ie ie ee ee Re ee ees 65 C to 150 C t Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied Exposure to absolute maximum rated conditions for extended periods may affect device reliability NOTE 1 The package thermal impedance is calculated in
5. 20 20 Pb Free CU NIPDAU Level NC NC NC RoHS SN74ALS540 1NSR ACTIVE SO NS 20 2000 Pb Free CU NIPDAU Level 2 260C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS540 1NSRE4 ACTIVE SO NS 20 2000 Pb Free CU NIPDAU Level 2 260C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS540DW ACTIVE SOIC DW 20 25 Pb Free CU NIPDAU Level 2 250C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS540DWG4 ACTIVE SOIC DW 20 25 Green RoHS amp CU NIPDAU Level 1 260C UNLIM no Sb Br SN74ALS540DWR ACTIVE SOIC DW 20 2000 Pb Free CU NIPDAU Level 2 250C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS540DWRG4 ACTIVE SOIC DW 20 2000 Green RoHS amp CU NIPDAU Level 1 260C UNLIM no Sb Br SN74ALS540N ACTIVE PDIP N 20 20 Pb Free CU NIPDAU Level NC NC NC RoHS SN74ALS540N3 OBSOLETE PDIP N 20 TBD Call TI Call TI SN74ALS540NE4 ACTIVE PDIP N 20 20 Pb Free CU NIPDAU Level NC NC NC RoHS SN74ALS540NSR ACTIVE SO NS 20 2000 Pb Free CU NIPDAU Level 2 260C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS540NSRE4 ACTIVE SO NS 20 2000 Pb Free CU NIPDAU Level 2 260C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS541 1DBR ACTIVE SSOP DB 20 2000 Pb Free CU NIPDAU Level 2 260C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS541 1DBRE4 ACTIVE SSOP DB 20 2000 Pb Free CU NIPDAU Level 2 260C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS541 1DW ACTIVE SOIC DW 20 25 Pb Free CU NIPDAU Level 2 250C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS541 1DWE4 ACTIVE SOIC DW 20 25 Pb Free CU NIPDAU Level 2 250C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS5
6. 41 1DWR ACTIVE SOIC DW 20 2000 Pb Free CU NIPDAU Level 2 250C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS541 1 DWRE4 ACTIVE SOIC DW 20 2000 Pb Free CU NIPDAU Level 2 250C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS541 1N ACTIVE PDIP N 20 20 Pb Free CU NIPDAU Level NC NC NC RoHS Addendum Page 1 K Texas PACKAGE OPTION ADDENDUM INSTRUMENTS www ti com 8 Jun 2005 Orderable Device Status Package Package Pins Package Eco Plan Lead Ball Finish MSL Peak Temp Type Drawing Qty SN74ALS541 1NE4 ACTIVE PDIP N 20 20 Pb Free CU NIPDAU Level NC NC NC RoHS SN74ALS541 1NSR ACTIVE SO NS 20 2000 Pb Free CU NIPDAU Level 2 260C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS541 1NSRE4 ACTIVE SO NS 20 2000 Pb Free CU NIPDAU Level 2 260C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS541DBR ACTIVE SSOP DB 20 2000 Pb Free CU NIPDAU Level 2 260C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS541DBRE4 ACTIVE SSOP DB 20 2000 Pb Free CU NIPDAU Level 2 260C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS541DW ACTIVE SOIC DW 20 25 Pb Free CU NIPDAU Level 2 250C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS541DWR ACTIVE SOIC DW 20 2000 Pb Free CU NIPDAU Level 2 250C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS541DWRE4 ACTIVE SOIC DW 20 2000 Pb Free CU NIPDAU Level 2 250C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS541N ACTIVE PDIP N 20 20 Pb Free CU NIPDAU Level NC NC NC RoHS SN74ALS541N3 OBSOLETE PDIP N 20 TBD Call TI Call TI SN74ALS541NE4 ACTIV
7. 5 TEXAS INSTRUMENTS POST OFFICE BOX 655303 9 DALLAS TEXAS 75265 MECHANICAL DATA N R PDIP T PLASTIC DUAL IN LINE PACKAGE 16 PINS SHOWN PINS DIM A MAX A MIN MS 001 VARIATION 0 020 MIN 0 015 0 38 00 5 08 Cau x ge Plane l Seating Plane 125 3 18 MIN plle 0 010 0 25 NOM d 0 430 10 92 MAX D MAX 7 0 51 0 2 t 0 38 0 010 0 25 Gi 14 18 Pin Only 20 Pin vendor option A 4040049 E 12 2002 NOTES All linear dimensions are in inches millimeters This drawing is subject to change without notice Falls within JEDEC MS 001 except 18 and 20 pin minimum body length Dim A The 20 pin end lead shoulder width is a vendor option either half or full width bp o gt 35 TEXAS INSTRUMENTS www ti com MECHANICAL DATA DW R PDSO C20 PLASTIC SMALL OUTLINE PACKAGE 10 0 020 0 51 0 012 0 31 10 010 0 25 Pin 1 0 050 1 27 Index Area i 2 65 Max CN 0 004 0 10 Gauge Plane A Seating Plane 0 010 0 25 4040000 4 F 06 2004 NOTES A All linear dimensions are in inc
8. E PDIP N 20 20 Pb Free CU NIPDAU Level NC NC NC RoHS SN74ALS541NSR ACTIVE SO NS 20 2000 Pb Free CU NIPDAU Level 2 260C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS541NSRE4 ACTIVE SO NS 20 2000 Pb Free CU NIPDAU Level 2 260C 1 YEAR RoHS Level 1 235C UNLIM SNJ54ALS541FK ACTIVE LCCC FK 20 1 TBD Call TI Level NC NC NC SNJ54ALS541J ACTIVE CDIP J 20 1 TBD Call TI Level NC NC NC The marketing status values are defined as follows ACTIVE Product device recommended for new designs LIFEBUY TI has announced that the device will be discontinued and a lifetime buy period is in effect NRND Not recommended for new designs Device is in production to support existing customers but TI does not recommend using this part in a new design PREVIEW Device has been announced but is not in production Samples may or may not be available OBSOLETE TI has discontinued the production of the device Eco Plan The planned eco friendly classification Pb Free RoHS or Green RoHS amp no Sb Br please check http Awww ti com productcontent for the latest availability information and additional product content details TBD The Pb Free Green conversion plan has not been defined Pb Free RoHS TI s terms Lead Free or Pb Free mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances including the requirement that lead not exceed 0 196 by weight in homogeneous materials Where designed to be soldere
9. SN54ALS541 SN74ALS540 SN74ALS541 OCTAL BUFFERS AND LINE DRIVERS WITH 3 STATE OUTPUTS SDAS025D APRIL 1982 REVISED MARCH 2002 3 State Outputs Drive Bus Lines or Buffer z D NE PAC d N74ALS540 DW N OR NS PACKAGE Memory Address Registers SN74ALS541 DB DW N OR NS PACKAGE pnp Inputs Reduce dc Loading TOP VIEW Data Flowthrough Pinout All Inputs on Opposite Side From Outputs description These octal buffers and line drivers are designed to have the performance of the popular SN54ALS240A SN74ALS240A series and at the same time offer a pinout with inputs and outputs on opposite sides of the package This arrangement greatly facilitates printed circuit board layout The 3 state control gate is a 2 input NOR gate SN54ALS541 FK PACKAGE such that if either output enable OE1 or OE2 TOP VIEW input is high all eight outputs are in the high impedance state The SN74ALS540 provides inverted data The ALS541 provide true data at the outputs The 1 versions of SN74ALS540 and SN74ALS541 are identical to the standard versions except that the recommended maximum lo is increased to 48 mA There is no 1 version of the SN54ALS541 Please be aware that an important notice concerning availability standard warranty and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet PRODUCTION DATA information
10. accordance with JESD 51 7 recommended operating conditions SN74ALS540 SN54ALS541 SN74ALS541 UNIT MIN NOM MAX E CR es aaj Low level output current a SESS t Applies only to the 1 version and only if Vcc is between 4 75 V and 5 25 V 5 TEXAS INSTRUMENTS POST OFFICE BOX 655303 DALLAS TEXAS 75265 3 SN54ALS541 SN74ALS540 SN74ALS541 OCTAL BUFFERS AND LINE DRIVERS WITH 3 STATE OUTPUTS SDASO25D APRIL 1982 REVISED MARCH 2002 electrical characteristics over recommended operating free air temperature range unless otherwise noted SN74ALS540 PARAMETER TEST CONDITIONS SN74ALS541 VIK R Vcc 4 5Vto5 5V l IOH 3 mA IOH 12 mA IOH 15 mA lol 12 mA IOL 24 mA IOL 48 mAT 25 5 V 2 25 V Outputs high snraaLss40 vcc 55v Outputs disabled l eM Outputs high ausst voc 55v Outputs disabled T Applies only to the 1 version and only if Vcc is between 4 75 V and 5 25 V t All typical values are at Vcc 5 V TA 25 C The output conditions have been chosen to produce a current that closely approximates one half of the true short circuit output current los switching characteristics see Figure 1 Vec 4 5 V to 5 5 V C 50 pF R1 500 9 FROM R2 500 Q PARAMETER 5 INPUT TA MIN to MAX1 SN54ALS541 SN74ALS540 SN74ALS541 MIN MAX MIN MAX MIN MAX T For conditions shown as MIN or MAX use the appropriate value specified under recommended operating cond
11. application solutions Products Applications Amplifiers amplifier ti com Audio www ti com audio Data Converters dataconverter ti com Automotive www ti com automotive DSP dsp ti com Broadband www ti com broadband Interface interface ti com Digital Control www ti com digitalcontrol Logic logic ti com Military www ti com military Power Mgmt power ti com Optical Networking www ti com opticalnetwork Microcontrollers microcontroller ti com Security www ti com security Telephony www ti com telephony Video amp Imaging www ti com video Wireless www ti com wireless Mailing Address Texas Instruments Post Office Box 655303 Dallas Texas 75265 Copyright 2005 Texas Instruments Incorporated
12. d at high temperatures TI Pb Free products are suitable for use in specified lead free processes Green RoHS amp no Sb Br TI defines Green to mean Pb Free RoHS compatible and free of Bromine Br and Antimony Sb based flame retardants Br or Sb do not exceed 0 196 by weight in homogeneous material 3 MSL Peak Temp The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications and peak solder temperature Important Information and Disclaimer The information provided on this page represents TI s knowledge and belief as of the date that it is provided TI bases its knowledge and belief on information provided by third parties and makes no representation or warranty as to the accuracy of such information Efforts are underway to better integrate information from third parties TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals TI and TI suppliers consider certain information to be proprietary and thus CAS numbers and other limited information may not be available for release Addendum Page 2 K Texas PACKAGE OPTION ADDENDUM INSTRUMENTS www ti com 8 Jun 2005 In no event shall TI s liability arising out of such information exceed the total purchase price of the TI part s at issue in this document sold by TI to Customer on an annual basis Ad
13. dendum Page 3 J R G DIP Tx 14 LEADS SHOWN CERAMIC DUAL IN LINE PACKAG B nnmnmnmnmnn ed Ra SUARUM 0 065 1 65 0 045 1 14 l 0 005 0 13 MIN d 0 026 0 66 0 014 0 36 0 100 2 54 PINS B 14 16 18 20 gt 0 300 0 300 0 300 0 300 A 7 62 7 62 7 62 7 62 BSC BSC BSC BSC ET 0 785 840 0 960 1 060 jj 19 94 21 34 24 38 26 92 C B MIN Ep 0 300 0 300 0 310 0 300 7 62 7 62 7 87 7 62 EAN 0 245 0 245 0 220 0 245 6 22 6 22 5 59 6 22 0 060 1 52 0 015 0 38 0 200 5 08 MAX n Y Seating Plane t 0 130 3 30 MIN x U U p ke 0 15 0 014 0 36 4040083 F 03 03 NOTES All linear dimensions are in inches millimeters This drawing is subject to change without notice This package is hermetically sealed with a ceramic lid using glass frit Index point is provided on cap for terminal identification only on press ceramic glass frit seal only Falls within MIL STD 1835 GDIP1 7T14 GDIP1 T16 GDIP1 T18 and GDIP1 T20 MECHANICAL DATA W R GDFP F20 CERAMIC DUAL FLATPACK Base and Seating Plane 0 320 8 13 MAX
14. h that the output is low except when disabled by the output control Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control When measuring propagation delay items of 3 state outputs switch S1 is open All input pulses have the following characteristics PRR x 1 MHz tr tf 2 ns duty cycle 50 The outputs are measured one at a time with one transition per measurement moo Figure 1 Load Circuits and Voltage Waveforms 35 TEXAS INSTRUMENTS POST OFFICE BOX 655303 DALLAS TEXAS 75265 5 X3 Texas PACKAGE OPTION ADDENDUM INSTRUMENTS www ti com 8 Jun 2005 PACKAGING INFORMATION Orderable Device Status Package Package Pins Package Eco Plan Lead Ball Finish MSL Peak Temp Type Drawing Qty 5962 89602012A ACTIVE LCCC FK 20 1 TBD Call TI Level NC NC NC 5962 8960201RA ACTIVE CDIP J 20 1 TBD Call TI Level NC NC NC 5962 8960201SA OBSOLETE CFP Ww 20 TBD Call TI Call TI SN54ALS541J ACTIVE CDIP J 20 1 TBD Call TI Level NC NC NC SN74ALS540 1DW ACTIVE SOIC DW 20 25 Pb Free CU NIPDAU Level 2 250C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS540 1DWE4 ACTIVE SOIC DW 20 25 Pb Free CU NIPDAU Level 2 250C 1 YEAR RoHS Level 1 235C UNLIM SN74ALS540 1DWR OBSOLETE SOIC DW 20 TBD Call TI Call TI SN74ALS540 1N ACTIVE PDIP N 20 20 Pb Free CUNIPDAU Level NC NC NC RoHS SN74ALS540 1NE4 ACTIVE PDIP N
15. hes millimeters B This drawing is subject to change without notice C Body dimensions do not include mold flash or protrusion not to exceed 0 006 0 15 D Falls within JEDEC MS 013 variation AC 35 TEXAS INSTRUMENTS www ti com NS R PDSO G 14 PINS SHOWN MECHANICAL DATA 0 25M Seating Plane 2 00 MAX PLASTIC SMALL OUTLINE PACKAGE 0 15 NOM t Gage Plane c3 0 10 A NOTES A All linear dimensions are in millimeters B This drawing is subject to change without notice C Body dimensions do not include mold flash or protrusion not to exceed 0 15 4040062 C 03 03 45 TEXAS INSTRUMENTS www ti com MECHANICAL DATA MSSO002E JANUARY 1995 REVISED DECEMBER 2001 DB R PDSO G PLASTIC SMALL OUTLINE 28 PINS SHOWN 08 Gage Plane 4 0 Y Seating Plane 2 00 MAX 0 05 MIN E 20 10 PINS 4040065 E 12 01
16. itions 35 TEXAS INSTRUMENTS 4 POST OFFICE BOX 655303 9 DALLAS TEXAS 75265 SN54ALS541 SN74ALS540 SN74ALS541 OCTAL BUFFERS AND LINE DRIVERS WITH 3 STATE OUTPUTS SDAS025D APRIL 1982 REVISED MARCH 2002 PARAMETER MEASUREMENT INFORMATION SERIES 54ALS 74ALS AND 54AS 74AS DEVICES 7V Vec RL R1 R2 S1 RL R1 From Output e Test From Output Test From Output Test Under Test Point Under Test Point Under Test Point see a ai RL CL N p cw R2 see Note A T see Note A LOAD CIRCUIT FOR BI STATE LOAD CIRCUIT LOAD CIRCUIT TOTEM POLE OUTPUTS FOR OPEN COLLECTOR OUTPUTS FOR 3 STATE OUTPUTS Timing 3 5 V High Level 35V input 13V Pulse 13V 13V 0 3 V 0 3 V tsu a a th _ tw P 85V 3 5V Data Low Level input 13V 13V Sulee 13V 13V 0 3 V 0 3V VOLTAGE WAVEFORMS VOLTAGE WAVEFORMS SETUP AND HOLD TIMES PULSE DURATIONS Output Control low level enabling O L Dp ooo 3 5 V Input 1 3 V 1 3 V 0 3 V Waveform 1 tPLH pid tPHL S1 Closed 2 In Phase OH see Note B Output 13V 13V VoL gpl tPLH tPHL lt gt Wayetorm 2 Out of Phase VOH S1 Open Output 1 3V 1 3V see Note B see Note C VoL VOLTAGE WAVEFORMS VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES 3 STATE OUTPUTS PROPAGATION DELAY TIMES NOTES A Cj includes probe and jig capacitance B Waveform 1 is for an output with internal conditions suc
17. sign and operating safeguards TI does not warrant or represent that any license either express or implied is granted under any TI patent right copyright mask work right or other TI intellectual property right relating to any combination machine or process in which TI products or services are used Information published by TI regarding third party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a third party under the patents or other intellectual property of the third party or a license from TI under the patents or other intellectual property of TI Reproduction of information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties conditions limitations and notices Reproduction of this information with alteration is an unfair and deceptive business practice TI is not responsible or liable for such altered documentation Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice TI is not responsible or liable for any such statements Following are URLs where you can obtain information on other Texas Instruments products and
Download Pdf Manuals
Related Search
TEXAS INSTRUMENTS SN54ALS541 SN74ALS540 SN74ALS541 handbook