SCLS071D - NOVEMBER 1988 - REVISED OCTOBER 2003 D Operating Voltage Range of 4.5 V to 5.5 V D High-Current Outputs Drive Up To 15 LSTTL Loads D Typical tpd = 15 ns D Low Power Consumption, 80-A Max ICC D D D D 6-mA Output Drive at 5 V Low Input Current of 1 A Max Inputs Are TTL-Voltage Compatible Buffered Inputs and Outputs SN54HCT157 . . . J OR W PACKAGE SN74HCT157 . . . D OR N PACKAGE (TOP VIEW) 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 1A A/B NC VCC G VCC G 4A 4B 4Y 3A 3B 3Y 1B 1Y NC 2A 2B 4 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 4A 4B NC 4Y 3A 2Y GND NC 3Y 3B A/B 1A 1B 1Y 2A 2B 2Y GND SN54HCT157 . . . FK PACKAGE (TOP VIEW) NC - No internal connection description/ordering information These data selectors/multiplexers contain inverters and drivers to supply full data selection to the four output gates. A separate strobe (G) input is provided. A 4-bit word is selected from one of two sources and is routed to the four outputs. ORDERING INFORMATION PACKAGE TA PDIP - N -40C to 85C -55C -55 C to 125 125C C ORDERABLE PART NUMBER TOP-SIDE MARKING Tube of 25 SN74HCT157N Tube of 40 SN74HCT157D Reel of 2500 SN74HCT157DR Reel of 250 SN74HCT157DT CDIP - J Tube of 25 SNJ54HCT157J SNJ54HCT157J CFP - W Tube of 150 SNJ54HCT157W SNJ54HCT157W SOIC - D SN74HCT157N HCT157 LCCC - FK Tube of 55 SNJ54HCT157FK SNJ54HCT157FK Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. 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. Copyright 2003, Texas Instruments Incorporated !"#$%& "!&'& &(!)$'!& "#))%& ' !( *#+,"'!& '%- )!#" "!&(!)$ ! *%"("'!& *%) % %)$ !( %.' &)#$%& '&') /'))'&0)!#"!& *)!"%&1 !% &! &%"%'),0 &",#% %&1 !( ',, *')'$%%)POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 1 SCLS071D - NOVEMBER 1988 - REVISED OCTOBER 2003 FUNCTION TABLE INPUTS OUTPUT Y DATA STROBE G SELECT A/B A B H X X X L L L L X L L L H X H L H X L L L H X H H logic diagram (positive logic) 1A 2 4 1B 2A 3 5 7 2B 3A 6 4A 10 G A/B 13 15 1 Pin numbers shown are for the D, J, N, and W packages. 2 3Y 14 12 4B 2Y 11 9 3B 1Y POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 4Y SCLS071D - NOVEMBER 1988 - REVISED OCTOBER 2003 absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to 7 V Input clamp current, IIK (VI < 0 or VI > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA Output clamp current, IOK (VO < 0 or VO > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 mA Package thermal impedance, JA (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65C to 150C 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. NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51-7. recommended operating conditions (see Note 3) SN54HCT157 MIN NOM MAX MIN NOM MAX 4.5 5 5.5 4.5 5 5.5 VCC VIH Supply voltage VIL VI Low-level input voltage Input voltage 0 VO tt Output voltage 0 High-level input voltage VCC = 4.5 V to 5.5 V VCC = 4.5 V to 5.5 V SN74HCT157 2 2 Input transition (rise and fall) time V V 0.8 VCC VCC UNIT 0 0 500 0.8 V VCC VCC V 500 ns V TA Operating free-air temperature -55 125 -40 85 C NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC VOH VI = VIH or VIL IOH = -20 A IOH = -6 mA 4.5 V VOL VI = VIH or VIL IOL = 20 A IOL = 6 mA 4.5 V II ICC VI = VCC or 0 VI = VCC or 0, ICC IO = 0 One input at 0.5 V or 2.4 V, Other inputs at 0 or VCC Ci 5.5 V TA = 25C MIN TYP MAX 4.5 V to 5.5 V MIN MAX SN74HCT157 MIN 4.4 4.499 4.4 4.4 3.98 4.3 3.7 3.84 MAX UNIT V 0.001 0.1 0.1 0.1 0.17 0.26 0.4 0.33 0.1 100 1000 1000 nA 8 160 80 A 1.4 2.4 3 2.9 mA 3 10 10* 10 pF 5.5 V 5.5 V SN54HCT157 V * On products compliant to MIL-PRF-38535, this parameter is not production tested. This is the increase in supply current for each input that is at one of the specified TTL voltage levels, rather than 0 V or VCC. 2 &(!)$'!& "!&"%)& *)!#" & % (!)$'3% !) %1& *'% !( %3%,!*$%&- ')'"%)" '' '& !%) *%"("'!& ')% %1& 1!',- %.' &)#$%& )%%)3% % )1 ! "'&1% !) "!&&#% %% *)!#" /!# &!"%- POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 3 SCLS071D - NOVEMBER 1988 - REVISED OCTOBER 2003 switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 1) PARAMETER tpd FROM (INPUT) TO (OUTPUT) A or B Y A/B Y G Y tt Any VCC MIN TA = 25C TYP MAX SN54HCT157 MIN MAX SN74HCT157 MIN MAX 4.5 V 18 28 42 35 5.5 V 15 25 38 32 4.5 V 20 32 48 40 5.5 V 17 29 43 36 4.5 V 18 26 39 33 5.5 V 15 23 35 30 4.5 V 8 15 22 19 5.5 V 7 14 21 17 UNIT ns ns switching characteristics over recommended operating free-air temperature range, CL = 150 pF (unless otherwise noted) (see Figure 1) PARAMETER tpd FROM (INPUT) TO (OUTPUT) A or B Y A/B Y G Y tt Any VCC MIN TA = 25C TYP MAX SN54HCT157 MIN MAX SN74HCT157 MIN MAX 4.5 V 23 42 63 52 5.5 V 19 38 52 46 4.5 V 24 46 72 58 5.5 V 21 41 61 52 4.5 V 21 39 58 48 5.5 V 19 35 49 43 4.5 V 17 42 63 53 5.5 V 14 38 57 48 UNIT ns ns operating characteristics, TA = 25C PARAMETER Cpd TEST CONDITIONS Power dissipation capacitance No load 2 &(!)$'!& "!&"%)& *)!#" & % (!)$'3% !) %1& *'% !( %3%,!*$%&- ')'"%)" '' '& !%) *%"("'!& ')% %1& 1!',- %.' &)#$%& )%%)3% % )1 ! "'&1% !) "!&&#% %% *)!#" /!# &!"%- 4 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 TYP 12 UNIT pF SCLS071D - NOVEMBER 1988 - REVISED OCTOBER 2003 PARAMETER MEASUREMENT INFORMATION Input (see Note B) From Output Under Test 3V 1.3 V 1.3 V 0V tPLH Test Point CL = 50 pF (see Note A) Output 1.3 V 10% tPHL 90% 90% tr LOAD CIRCUIT VOH 1.3 V 10% V OL tf VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES NOTES: A. CL includes probe and test-fixture capacitance. B. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following characteristics: PRR 1 MHz, ZO = 50 , tr = 6 ns, tf = 6 ns. C. The outputs are measured one at a time with one input transition per measurement. D. tPLH and tPHL are the same as tpd. Figure 1. Load Circuit and Voltage Waveforms POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 5 PACKAGE OPTION ADDENDUM www.ti.com 18-Sep-2008 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty SN74HCT157D ACTIVE SOIC D 16 40 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT157DE4 ACTIVE SOIC D 16 40 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT157DG4 ACTIVE SOIC D 16 40 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT157DR ACTIVE SOIC D 16 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT157DRE4 ACTIVE SOIC D 16 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT157DRG4 ACTIVE SOIC D 16 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT157DT ACTIVE SOIC D 16 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT157DTE4 ACTIVE SOIC D 16 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT157DTG4 ACTIVE SOIC D 16 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT157N ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type SN74HCT157NE4 ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Lead/Ball Finish MSL Peak Temp (3) (1) 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. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.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 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & 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 0.1% 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. 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 Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com 18-Sep-2008 to Customer on an annual basis. Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 19-Mar-2008 TAPE AND REEL INFORMATION *All dimensions are nominal Device SN74HCT157DR Package Package Pins Type Drawing SOIC D 16 SPQ Reel Reel Diameter Width (mm) W1 (mm) 2500 330.0 16.4 Pack Materials-Page 1 A0 (mm) B0 (mm) K0 (mm) P1 (mm) 6.5 10.3 2.1 8.0 W Pin1 (mm) Quadrant 16.0 Q1 PACKAGE MATERIALS INFORMATION www.ti.com 19-Mar-2008 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74HCT157DR SOIC D 16 2500 333.2 345.9 28.6 Pack Materials-Page 2 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. 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