CD74ACT541ME4中文资料

Data sheet acquired from Harris Semiconductor SCHS257Features•Buffered Inputs•Typical Propagation Delay: 6.4ns at V CC = 5V ,T A = 25o C, C L = 50pF •CD74FCT540-Inverting •CD74FCT541-Noninverting•SCR Latchup Resistant BiCMOS Process and Circuit Design•Speed of Bipolar FAST™/AS/S •64mA Output Sink Current•Output Voltage Swing Limited to 3.7V at V CC = 5V •Controlled Output Edge Rates •Input/Output Isolation to V CC•BiCMOS Technology with Low Quiescent PowerDescriptionThe CD74FCT540and CD74FCT541octal buffers/line drivers use a small geometry BiCMOS technology.The output stage is a combination of bipolar and CMOS transistors that limits the output HIGH level to two diode drops below V CC .This resultant lowering of output swing (0V to 3.7V)reduces power bus ringing (a source of EMI)and minimizes V CC bounce and ground bounce and their effects during simultaneous output switching.The output configuration also enhances switching speed and is capable of sinking 64 milliamperes.The CD74FCT540is a three-state buffer having two active LOW output enables.The CD74FCT541is a noninverting three state buffer having two active LOW output enables.Ordering InformationPinoutsPART NUMBER TEMP.RANGE (o C)PACKAGE PKG.NO.CD74FCT540E 0 to 7020 Ld PDIP E20.3CD74FCT541E 0 to 7020 Ld PDIP E20.3CD74FCT540M 0 to 7020 Ld SOIC M20.3CD74FCT541M 0 to 7020 Ld SOIC M20.3CD74FCT541SM0 to 7020 Ld SSOPM20.209NOTE:When ordering the suffix M and SM packages, use the entire part number.Add the suffix 96to obtain the variant in the tape and reel.CD74FCT540(PDIP , SOIC)TOP VIEWCD74FCT541(PDIP , SOIC, SSOP)TOP VIEW1112131415161718201910987654321OE1A0A1A2A3A4A6A5A7GND V CC Y0Y1Y2Y3Y4Y5Y6Y7OE21112131415161718201910987654321OE1A0A1A2A3A4A6A5A7GND V CC Y0Y1Y2Y3Y4Y5Y6Y7OE2January 1997CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.CD74FCT540,CD74FCT541BiCMOS FCT Interface Logic,Octal Buffers/Line Drivers, Three-StateN O T R E C O M M E N D E D F OR N E W D E S I G N S U s e CM O ST e c h n o l o g y File Number2383.2元器件交易网Functional DiagramIEC Logic SymbolTRUTH TABLE (Note 1)INPUTSOUTPUTSOE1OE2A n CD74FCT540CD74FCT541L L H L H H X X Z Z X H X Z Z LLLHLNOTE:1.H = HIGH Voltage Level L = LOW Voltage Level X = ImmaterialZ = HIGH Impedance2345678918171615141312Y0Y1Y2Y3Y4Y5Y6Y7A0A1A2A3A0A1A2A31GND = PIN 10V CC = PIN 2019OE1OE211Y0Y1Y2Y3Y4Y5Y6Y7541540CD74FCT540CD74FCT54118171615EN123451413121167891918171615EN1234514131211678919Absolute Maximum Ratings Thermal InformationDC Supply Voltage (V CC). . . . . . . . . . . . . . . . . . . . . . . .-0.5V to 6V DC Input Diode Current, I IK (For V I < -0.5V) . . . . . . . . . . . . .-20mA DC Output Diode Current, I OK (for V O < -0.5V). . . . . . . . . . .-50mA DC Output Sink Current per Output Pin, IO . . . . . . . . . . . . . . .70mA DC Output Source Current per Output Pin, IO. . . . . . . . . . . .-30mA DC V CC Current (I CC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140mA DC Ground Current (I GND). . . . . . . . . . . . . . . . . . . . . . . . . . .528mA Operating ConditionsOperating Temperature Range (T A) . . . . . . . . . . . . . . . .0o C to 70o C Supply Voltage Range, V CC. . . . . . . . . . . . . . . . . . . .4.75V to 5.25V DC Input Voltage, V I. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 to V CC DC Output Voltage, V O. . . . . . . . . . . . . . . . . . . . . . . . . . .0 to≤V CC Input Rise and Fall Slew Rate, dt/dv. . . . . . . . . . . . . . . .0 to 10ns/V Thermal Resistance (T ypical, Note 2)θJA (o C/W) PDIP Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135 SOIC Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125 SSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130 Maximum Junction T emperature. . . . . . . . . . . . . . . . . . . . . . .150o C Maximum Storage Temperature Range . . . . . . . . . .-65o C to 150o C Maximum Lead Temperature (Soldering 10s). . . . . . . . . . . . .300o C (SOIC and SSOP-Lead Tips Only)CAUTION:Stresses above those listed in“Absolute Maximum Ratings”may cause permanent damage to the device.This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.NOTE:2.θJA is measured with the component mounted on an evaluation PC board in free air.Electrical Specifications Commercial Temperature Range 0o C to 70o C, V CC Max = 5.25V, V CC Min = 4.75V (Note 5)PARAMETER SYMBOL TEST CONDITIONSV CC (V)AMBIENT TEMPERATURE (T A)UNITS25o C0o C TO 70o CV I (V)I O (mA)MIN MAX MIN MAXHigh Level Input Voltage V IH 4.75 to 5.252-2-V Low Level Input Voltage V IL 4.75 to 5.25-0.8-0.8V High Level Output Voltage V OH V IH or V IL-15Min 2.4- 2.4-V Low Level Output Voltage V OL V IH or V IL64Min-0.55-0.55V High Level Input Current I IH V CC Max-0.1-1µA Low Level Input Current I IL GND Max--0.1--1µA Three State Leakage Current I OZH V CC Max-0.5-10µAI OZL GND Max--0.5--10µA Input Clamp Voltage V IK V CC orGND-18Min--1.2--1.2VShort Circuit Output Current (Note 3)I OS V O = 0V CC orGNDMax-60--60-mAQuiescent Supply Current, MSI I CC V CC orGND0Max-8-80µAAdditional Quiescent Supply Current per Input PinTTL Inputs High, 1 Unit Load ∆I CC 3.4V(Note 4)Max- 1.6- 1.6mANOTES:3.Not more than one output should be shorted at one time. Test duration should not exceed 100ms.4.Inputs that are not measured are at V CC or GND.5.FCT Input Loading: All inputs are 1 unit load. Unit load is∆I CC limit specified in Static Characteristics Chart, e.g., 1.6mA Max. @ 70o C.Switching Specifications Over Operating Range FCT Series t r, t f = 2.5ns, C L = 50pF, R L (Figure 3) (Note 6)PARAMETER SYMBOL V CC (V)25o C0o C TO 70o CUNITS TYP MIN MAXPropagation Delays(Note 6)Data to OutputsCD74FCT540t PLH, t PHL5 6.428.5ns CD74FCT541t PLH, t PHL5628ns Output Disable to Output t PLZ, t PHZ57.129.5ns Output Enable to Output t PZL, t PZH57.5210ns Power Dissipation Capacitance C PD(Note 7)CD74FCT540-37--pF CD74FCT541-40--pF Minimum (Valley) V OHV During Switching ofOther Outputs (Output Under Test Not Switching)V OHV50.5--VMaximum (Peak) V OLP During Switching ofOther Outputs (Output Under Test Not Switching)V OLP51--V Input Capacitance C I---10pF Three-State Output Capacitance C O---15pF NOTES:6.5V: Min is at 5.25V for 0o C to 70o C, Max is at 4.75V for 0o C to 70o C, Typ is at 5V.7.C PD,measured per flip-flop,is used to determine the dynamic power consumption.P D (per package) = V CC I CC +Σ(V CC2 f I C PD + V O2 f O C L + V CC∆I CC D) where:V CC = supply voltage∆I CC = flow through current x unit loadC L = output load capacitanceD = duty cycle of input highf O = output frequencyf I = input frequencyTest Circuits and WaveformsNOTE:8.Pulse Generator for All Pulses:Rate ≤1.0MHz;Z OUT ≤50Ω;t f , t r ≤ 2.5ns.FIGURE 1.TEST CIRCUITFIGURE 2.ENABLE AND DISABLE TIMING FIGURE 3.PROPAGATION DELAYNOTES:9.V OLP is measured with respect to a ground reference near the output under test. V OHV is measured with respect to V OH .10.Input pulses have the following characteristics:P RR ≤ 1MHz, t r = 2.5ns, t f = 2.5ns, skew 1ns.11.R.F.fixture with 700MHz design rules required.IC should be soldered into test board and bypassed with 0.1µF capacitor.Scope andprobes require 700MHz bandwidth.FIGURE 4.SIMULTANEOUS SWITCHING TRANSIENT WAVEFORMS3V 0DUTPULSE Z O GEN 7V500Ω50pF500ΩV CCR TR T = Z OV 0C L R L R LV It r , t f = 2.5ns(NOTE 8)SWITCH POSITIONTESTSWITCH t PLZ , t PZL , Open Drain Closed t PHZ , t PZH , t PLH , t PHLOpenDEFINITIONS:C L = Load capacitance, includes jig and probecapacitance.R T =Termination resistance,should be equal to Z OUT ofthe Pulse Generator.V IN = 0V to 3V .Input:t r =t f =2.5ns (10%to 90%),unless otherwise specified3V 1.5V 0V CONTROL INPUTOUTPUTNORMALL Y LOWOUTPUTNORMALLY HIGHSWITCH OPENt PZL3.5V 1.5V1.5V 0Vt PLZt PHZt PZH0V3.5V 0.3V0.3VV OL V OH SWITCH CLOSED ENABLEDISABLE1.5V 3V0V 1.5V 3V 0Vt PLHSAME PHASE INPUT TRANSITIONt PHLt PLHt PHLOPPOSITE PHASE INPUT TRANSITIONOUTPUT1.5V V OH V OLOTHER OUTPUTSOUTPUT UNDER TESTV OHV OLV OH V OHV V OLP V OLIMPORTANT NOTICETexas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability.TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements.CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER’S RISK.In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards.TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI’s publication of information regarding any third party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.Copyright © 1999, Texas Instruments Incorporated。

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 INFORMATIONCENTRAL/SOUTH AMERICA:Spanish Phone:303–308–7143 (Mon–Fri 8:00am to 5:00pm MST)Email:ONlit–spanish@ASIA/PACIFIC: LDC for ON Semiconductor – Asia SupportPhone:303–675–2121 (Tue–Fri 9:00am to 1:00pm, Hong Kong Time)Toll Free from Hong Kong & Singapore:001–800–4422–3781Email: ONlit–asia@JAPAN: ON Semiconductor, Japan Customer Focus Center4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–8549Phone: 81–3–5740–2745Email: r14525@。

POST OFFICE BOX 655303 •DALLAS, TEXAS 75265Copyright © 1999, Texas Instruments IncorporatedPRODUCTION DATA information is current as of publication date.Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.The CD54/74AC540, -541, and CD54/74ACT540, -541 octal buffer/line drivers use the RCA ADVANCED CMOS technology. The CD54/74AC/ACT540 are inverting 3-state buffers having two active-LOW output enables. The CD54/74AC/ACT541 are non-inverting 3-state buffers having two active-LOW output enables.The CD74AC540, -541, and CD74ACT540, -541 are supplied in 20-lead dual-in-line plastic packages (E suffix) and in 20-lead dual-in-line small-outline plastic packages (M suffix). Both package types are operable over the following temperature ranges: Industrial (–40 to +85°C) and Extended Industrial/Military (–55 to +125°C).The CD54AC540, -541, and CD54ACT540, -541, available in chip form (H suffix), are operable over the –55 to +125°C temperature range.L H ZData sheet acquired from Harris Semiconductor SCHS285A – Revised November 1999MAXIMUM RATINGS,Absolute-Maximum Values:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DC SUPPLY-VOLTAGE (V CC)–0.5 to 6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DC INPUT DIODE CURRENT, I IK (for V I < –0.5 or V I > V CC + 0.5 V)±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DC OUTPUT DIODE CURRENT, I OK (for V O < –0.5 or V O > V CC + 0.5 V)±50 mA DC OUTPUT SOURCE OR SINK CURRENT per Output Pin, I O (for V O > –0.5 or V O < V CC + 0.5 V)±50 mA. . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DC V CC OR GROUND CURRENT (I CC or I GND)±100 mA*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PACKAGE THERMAL IMPEDANCE, θJA (see Note 1):E package69°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .M package58°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .STORAGE TEMPERATURE (T stg)–65 to +150°C LEAD TEMPERATURE (DURING SOLDERING):. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .At distance 1/16 ± 1/32 in. (1.59 ± 0.79 mm) from case for 10 s maximum+265°C. . . . . . . . . . . . . . . . . . . . . . . .Unit inserted into PC board min. thickness 1/16 in. (1.59 mm) with solder contacting lead tips only+300°C * For up to 4 outputs per device: add ±25 mA for each additional output.NOTE 1:The package thermal impedance is calculated in accordance with JESD 51.2POST OFFICE BOX 655303 • DALLAS, TEXAS 752653 POST OFFICE BOX 655303 • DALLAS, TEXAS 752654POST OFFICE BOX 655303 • DALLAS, TEXAS 75265ns5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265POST OFFICE BOX 655303 • DALLAS, TEXAS 75265元器件交易网IMPORTANT NOTICETexas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinueany product or service without notice, and advise customers to obtain the latest version of relevant informationto verify, before placing orders, that information being relied on is current and complete. All products are soldsubject to the terms and conditions of sale supplied at the time of order acknowledgement, including thosepertaining to warranty, patent infringement, and limitation of liability.TI warrants performance of its semiconductor products to the specifications applicable at the time of sale inaccordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extentTI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarilyperformed, except those mandated by government requirements.CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OFDEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICALAPPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, ORWARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHERCRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TOBE FULLY AT THE CUSTOMER’S RISK.In order to minimize risks associated with the customer’s applications, adequate design and operatingsafeguards must be provided by the customer to minimize inherent or procedural hazards.TI assumes no liability for applications assistance or customer product design. TI does not warrant or representthat any license, either express or implied, is granted under any patent right, copyright, mask work right, or otherintellectual property right of TI covering or relating to any combination, machine, or process in which suchsemiconductor products or services might be or are used. TI’s publication of information regarding any thirdparty’s products or services does not constitute TI’s approval, warranty or endorsement thereof.Copyright © 1999, Texas Instruments Incorporated。

74HC541 8路缓冲器/线路驱动器具备74HC240所有的功能，并且把输入引脚和输出引脚分布在封装的两边，这就极大方便了印刷电路板的布线。

1.74hc541中文资料
74HC541 8路缓冲器/线路驱动器具备74HC240所有的功能，并且把输入引脚和输出引脚分布在封装的两边，这就极大方便了印刷电路板的布线。

74HC541的三态输出由一个两输入或非门控制。

当任一个输出使能端（OE1或OE2）为高时，八个输出端将进入高阻态。

74HC541器件的输出为原码数据。

该7HC/HCT54是八进制非反相缓冲器/线路，具有三态输出的驱动器。

三态输出是由输出使能输入OE1和OE2控制。

OEN高导致输出呈现高电平。

阻抗呈关闭状态，“541”与“540”相同，但具有非反相输出。

2.74hc541引脚图及功能
SN74HC541能够完成两侧输入的封装和输引脚的排列与输出的功能，通俗的说，就是可以完成三态输出的八线路缓冲器和线路驱动器。

SN54HC541引脚配置和功能
OE1 ：输出使能（低电平有效）两个OE必须为低电平才能使能输出
A1：通道1输入，A2 ：通道2输入，A3：通道3输入，A4：通道4输入，A5：通道5输入，A6：通道6输入，A7：通道7输入，A8：通道8输入。

GND：【地】
Y8 ：通道8输出，Y7 ：通道7输出，Y6 ：通道6输出，Y5 ：通道5输出，Y4 ：通道4输出，Y3 ：通道3输出，Y2 ：通道2输出，Y1 ：通道1输出。

OE2 ：输出使能（低电平有效）OE必须为低电平才能使能输出。

VCC ：电源引脚。