SCLS171E - MARCH 1984 - REVISED SEPTEMBER 2003 D D D D D D Low Input Current of 1 A Max D Inputs Are TTL-Voltage Compatible D Designed Specifically for High-Speed Operating Voltage Range of 4.5 V to 5.5 V Outputs Can Drive Up To 10 LSTTL Loads Low Power Consumption, 80-A Max ICC Typical tpd = 17 ns 4-mA Output Drive at 5 V D Memory Decoders and Data Transmission Systems Incorporate Three Enable Inputs to Simplify Cascading and/or Data Reception SN54HCT138 . . . J OR W PACKAGE SN74HCT138 . . . D, N, NS, OR PW PACKAGE (TOP VIEW) 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 B A NC VCC Y0 VCC Y0 Y1 Y2 Y3 Y4 Y5 Y6 C G2A NC G2B G1 4 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 Y1 Y2 NC Y3 Y4 Y7 GND NC Y6 Y5 A B C G2A G2B G1 Y7 GND SN54HCT138 . . . FK PACKAGE (TOP VIEW) NC - No internal connection description/ordering information The 'HCT138 devices are designed for high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible. ORDERING INFORMATION PDIP - N SN74HCT138N Tube of 40 SN74HCT138D Reel of 2500 SN74HCT138DR Reel of 250 SN74HCT138DT Reel of 2000 SN74HCT138NSR Tube of 90 SN74HCT138PW Reel of 2000 SN74HCT138PWR Reel of 250 SN74HCT138PWT CDIP - J Tube of 25 SNJ54HCT138J SNJ54HCT138J CFP - W Tube of 150 SNJ54HCT138W SNJ54HCT138W SOP - NS TSSOP - PW -55C -55 C to 125 125C C TOP-SIDE MARKING Tube of 25 SOIC - D -40C to 85C ORDERABLE PART NUMBER PACKAGE TA SN74HCT138N HCT138 HCT138 HT138 LCCC - FK Tube of 55 SNJ54HCT138FK SNJ54HCT138FK 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 *&# " &$&##!)/ $)%*& "&#"0 !)) '!!&"&#+ '*%$"# $')!" " 1 !)) '!!&"&# !& "&#"&* %)&## ",&.#& "&*+ !)) ",& '*%$"# '*%$" '$&##0 *&# " &$&##!)/ $)%*& "&#"0 !)) '!!&"&#+ POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 1 SCLS171E - MARCH 1984 - REVISED SEPTEMBER 2003 description/ordering information (continued) The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two active-low (G) and one active-high (G) enable inputs reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters, and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications. FUNCTION TABLE INPUTS ENABLE 2 OUTPUTS SELECT G1 G2A G2B C B A Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 X H X X X X H H H H H H H H X X H X X X H H H H H H H H L X X X X X H H H H H H H H H L L L L L L H H H H H H H H L L L L H H L H H H H H H H L L L H L H H L H H H H H H L L L H H H H H L H H H H H L L H L L H H H H L H H H H L L H L H H H H H H L H H H L L H H L H H H H H H L H H L L H H H H H H H H H H L POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 SCLS171E - MARCH 1984 - REVISED SEPTEMBER 2003 logic diagram (positive logic) 15 A B C 1 14 Y1 2 13 3 12 11 10 G1 Y0 6 Y2 Y3 Y4 Y5 9 Y6 G2A 4 7 G2B Y7 5 Pin numbers shown are for the D, J, N, NS, PW, and W packages. 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) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Package thermal impedance, JA (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67C/W NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64C/W PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108C/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. POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 3 SCLS171E - MARCH 1984 - REVISED SEPTEMBER 2003 recommended operating conditions (see Note 3) SN54HCT138 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 t/v Output voltage 0 High-level input voltage VCC = 4.5 V to 5.5 V VCC = 4.5 V to 5.5 V SN74HCT138 2 2 Input transition rise/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 = -4 mA 4.5 V VOL VI = VIH or VIL IOL = 20 A IOL = 4 mA 4.5 V II ICC VI = VCC or 0 VI = VCC or 0, ICC MIN MIN MAX SN74HCT138 MIN 4.4 4.499 4.4 4.4 4.3 3.7 3.84 5.5 V 4.5 V to 5.5 V 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 Ci SN54HCT138 3.98 5.5 V IO = 0 One input at 0.5 V or 2.4 V, Other inputs at 0 or VCC TA = 25C TYP MAX V 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. switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) A, B, or C Any Y Enable Any Y tpd tt Y VCC MIN TA = 25C TYP MAX SN54HCT138 MIN MAX SN74HCT138 MIN MAX 4.5 V 23 36 54 45 5.5 V 17 32 49 34 4.5 V 22 33 50 42 5.5 V 18 30 45 38 4.5 V 12 15 22 19 5.5 V 11 14 20 17 UNIT ns ns operating characteristics, TA = 25C PARAMETER Cpd 4 TEST CONDITIONS Power dissipation capacitance No load POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 TYP 85 UNIT pF SCLS171E - MARCH 1984 - REVISED SEPTEMBER 2003 PARAMETER MEASUREMENT INFORMATION From Output Under Test 3V Test Point Input 1.3 V 1.3 V 0V CL = 50 pF (see Note A) tPLH In-Phase Output LOAD CIRCUIT 1.3 V 10% tPHL 90% 90% tr Input 1.3 V 0.3 V 2.7 V 2.7 V tr tPHL 3V 1.3 V 0.3 V 0 V Out-of-Phase Output 90% tf VOH 1.3 V 10% V OL tf tPLH 1.3 V 10% tf 1.3 V 10% 90% VOH VOL tr VOLTAGE WAVEFORMS PROPAGATION DELAY AND OUTPUT RISE AND FALL TIMES VOLTAGE WAVEFORM INPUT RISE AND FALL 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 25-Jan-2012 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp ACTIVE LCCC FK 20 1 TBD Call TI Call TI 8550401EA ACTIVE CDIP J 16 1 TBD Call TI Call TI 8550401FA ACTIVE CFP W 16 1 TBD A42 N / A for Pkg Type JM38510/65852BEA ACTIVE CDIP J 16 1 TBD A42 N / A for Pkg Type M38510/65852BEA ACTIVE CDIP J 16 1 TBD A42 N / A for Pkg Type A42 N / A for Pkg Type SN54HCT138J ACTIVE CDIP J 16 1 TBD SN74HCT138D ACTIVE SOIC D 16 40 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT138DE4 ACTIVE SOIC D 16 40 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT138DG4 ACTIVE SOIC D 16 40 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT138DR ACTIVE SOIC D 16 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT138DRE4 ACTIVE SOIC D 16 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT138DRG4 ACTIVE SOIC D 16 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT138DT ACTIVE SOIC D 16 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT138DTE4 ACTIVE SOIC D 16 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT138DTG4 ACTIVE SOIC D 16 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 25 Pb-Free (RoHS) SN74HCT138N ACTIVE PDIP N 16 OBSOLETE PDIP N 16 TBD CU NIPDAU N / A for Pkg Type Call TI Call TI SN74HCT138NE4 ACTIVE PDIP N 16 25 Pb-Free (RoHS) SN74HCT138NSR ACTIVE SO NS 16 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT138NSRE4 ACTIVE SO NS 16 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT138NSRG4 ACTIVE SO NS 16 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Addendum-Page 1 Samples (Requires Login) 85504012A SN74HCT138N3 (3) CU NIPDAU N / A for Pkg Type PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 25-Jan-2012 Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp ACTIVE TSSOP PW 16 90 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT138PWE4 ACTIVE TSSOP PW 16 90 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT138PWG4 ACTIVE TSSOP PW 16 90 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT138PWLE OBSOLETE TSSOP PW 16 SN74HCT138PWR ACTIVE TSSOP PW 16 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT138PWRE4 ACTIVE TSSOP PW 16 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT138PWRG4 ACTIVE TSSOP PW 16 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT138PWT ACTIVE TSSOP PW 16 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT138PWTE4 ACTIVE TSSOP PW 16 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74HCT138PWTG4 ACTIVE TSSOP PW 16 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SNJ54HCT138FK ACTIVE LCCC FK 20 1 TBD SNJ54HCT138J ACTIVE CDIP J 16 1 TBD A42 SNJ54HCT138W OBSOLETE CFP W 16 TBD Call TI Call TI Samples (Requires Login) SN74HCT138PW TBD (3) Call TI POST-PLATE N / A for Pkg Type N / A for Pkg Type Call TI (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. Addendum-Page 2 PACKAGE OPTION ADDENDUM www.ti.com 25-Jan-2012 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 to Customer on an annual basis. OTHER QUALIFIED VERSIONS OF SN54HCT138, SN74HCT138 : * Catalog: SN74HCT138 * Military: SN54HCT138 NOTE: Qualified Version Definitions: * Catalog - TI's standard catalog product * Military - QML certified for Military and Defense Applications Addendum-Page 3 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant SN74HCT138NSR SO NS 16 2000 330.0 16.4 8.2 10.5 2.5 12.0 16.0 Q1 SN74HCT138PWR TSSOP PW 16 2000 330.0 12.4 6.9 5.6 1.6 8.0 12.0 Q1 SN74HCT138PWT TSSOP PW 16 250 330.0 12.4 6.9 5.6 1.6 8.0 12.0 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74HCT138NSR SO NS 16 2000 367.0 367.0 38.0 SN74HCT138PWR TSSOP PW 16 2000 367.0 367.0 35.0 SN74HCT138PWT TSSOP PW 16 250 367.0 367.0 35.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. 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