SN54BCT25244, SN74BCT25244 25-W OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCBS064A – JUNE 1990 – REVISED NOVEMBER 1993 • State-of-the-Art BiCMOS Design SN54BCT25244...JT OR W PACKAGE Significantly Reduces I SN74BCT25244...DW OR NT PACKAGE CCZ • (TOP VIEW) ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015; Exceeds 1Y1 1 24 1OE 200 V Using Machine Model (C = 200 pF, GND 2 23 1A1 R = 0) 1Y2 3 22 1A2 • Designed to Facilitate Incident-Wave 1Y3 4 21 V CC Switching for Line Impedances of 25 W GND 5 20 1A3 or Greater 1Y4 6 19 1A4 • Distributed V and GND Pins Minimize 2Y1 7 18 2A1 CC Noise Generated by the Simultaneous GND 8 17 2A2 Switching of Outputs 2Y2 9 16 V CC • Package Options Include Plastic 2Y3 10 15 2A3 Small-Outline (DW) Packages, Ceramic GND 11 14 2A4 Chip Carriers (FK) and Flatpacks (W), and 2Y4 12 13 2OE Standard Plastic and Ceramic 300-mil DIPs (JT, NT) SN54BCT25244...FK PACKAGE (TOP VIEW) description 41 2 C3 4 AA A C CA A These 25-W octal buffers and line drivers are 12 2 NV 2 2 designed specifically to improve both the 4 3 2 1 28 27 26 performance and density of 3-state memory 1A3 5 25 2OE address drivers, clock drivers, and bus-oriented VCC 6 24 2Y4 receivers and transmitters. 1A2 7 23 GND NC 8 22 NC These buffers are capable of sinking 188-mA I , OL 1A1 9 21 2Y3 which facilitates switching 25-W transmission 1OE 10 20 2Y2 lines on the incident wave. The distributed V CC 1Y1 11 19 GND and GND pins minimize switching noise for more 12 1314 15 16 1718 reliable system operation. D 2 3 C D4 1 When the output-enable (1OE and 2OE) inputs GN 1Y 1Y N GN1Y 2Y are low, the device transmits data from the A inputs to the Y outputs. When 1OE and 2OE are NC – No internal connection high, the outputs are in the high-impedance state. The SN54BCT25244 is characterized for operation over the full military temperature range of –55°C to 125°C. The SN74BCT25244 is characterized for operation from 0°C to 70°C. FUNCTION TABLE (each buffer/driver) INPUTS OUTPUT OE A Y L H H L L L H X Z PRODUCTION DATA information is current as of publication date. Copyright  1993, Texas Instruments Incorporated Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 2–1

SN54BCT25244, SN74BCT25244 25-W OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCBS064A – JUNE 1990 – REVISED NOVEMBER 1993 logic symbol† logic diagram (positive logic) 24 1OE 24 1OE EN 23 1 23 1 1A1 1 1Y1 1A1 1Y1 22 3 1A2 1Y2 20 4 22 3 1A3 1Y3 1A2 1Y2 19 6 1A4 1Y4 20 4 1A3 1Y3 13 2OE EN 19 6 1A4 1Y4 18 7 2A1 1 2Y1 17 9 2A2 2Y2 15 10 13 2A3 2Y3 2OE 14 12 2A4 2Y4 18 7 2A1 2Y1 †This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. 17 9 2A2 2Y2 15 10 2A3 2Y3 14 12 2A4 2Y4 Pin numbers shown are for the DW, JT, NT, and W packages. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡ Supply voltage range, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V CC Input voltage range, V (see Note 1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V I Voltage range applied to any output in the disabled or power-off state, V . . . . . . . . . . . . . . . . –0.5 V to 5.5 V O Voltage range applied to any output in the high state, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to V O CC Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30 mA Current into any output in the low state, I : SN54BCT25244 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 mA O SN74BCT25244 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376 mA Operating free-air temperature range: SN54BCT25244 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to 125°C SN74BCT25244 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C ‡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 input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 2–2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

SN54BCT25244, SN74BCT25244 25-W OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCBS064A – JUNE 1990 – REVISED NOVEMBER 1993 recommended operating conditions (see Note 2) SN54BCT25244 SN74BCT25244 UUNNIITT MIN NOM MAX MIN NOM MAX VCC Supply voltage 4.5 5 5.5 4.5 5 5.5 V VIH High-level input voltage 2 2 V VIL Low-level input voltage 0.8 0.8 V IIK Input clamp current –18 –18 mA IOH High-level output current –53 –80 mA IOL Low-level output current 125 188 mA TA Operating free-air temperature –55 125 0 70 °C NOTE 2: Unused or floating inputs must be held high or low. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) SN54BCT25244 SN74BCT25244 PPAARRAAMMEETTEERR TTEESSTT CCOONNDDIITTIIOONNSS UUNNIITT MIN TYP† MAX MIN TYP† MAX VIK VCC = 4.5 V, II = –18 mA –1.2 –1.2 V VCC = 4.75 V, IOH = –3 mA 2.7 VOH IOH = –53 mA 2 V VVCCCC == 44.55 VV IOH = –80 mA 2 IOL = 94 mA 0.38 0.55 0.42 0.55 VOL VCC = 4.5 V IOL = 125 mA 0.8 V IOL = 188 mA 0.7 II VCC = 5.5 V, VI = 5.5 V 0.1 0.1 mA IIH VCC = 5.5 V, VI = 2.7 V 20 20 m A IIL VCC = 5.5 V, VI = 0.5 V –0.6 –0.6 mA IOZH VCC = 5.5 V, VO = 2.7 V 50 50 m A IOZL VCC = 5.5 V, VO = 0.5 V –50 –50 m A ICCL VCC = 5.5 V, Outputs open 90 119 90 119 mA ICCH VCC = 5.5 V, Outputs open 59 78 59 78 mA ICCZ VCC = 5.5 V, Outputs open 7 11 7 11 mA Ci VCC = 5 V, VI = 2.5 V or 0.5 V 5.5 5.5 pF Co VCC = 5 V, VO = 2.5 V or 0.5 V 17 17 pF †All typical values are at VCC = 5 V, TA = 25°C. switching characteristics over recommended ranges of supply voltage and operating free-air temperature, C = 50 pF (unless otherwise noted) (see Note 3) L VCC = 5 V, PARAMETER FROM TO TA = 25°C SN54BCT25244 SN74BCT25244 UNIT ((IINNPPUUTT)) ((OOUUTTPPUUTT)) MIN TYP MAX MIN MAX MIN MAX tPLH 1 3.2 4.9 1 5.6 1 5.5 AA YY nnss tPHL 2 4 5.6 2 6.3 2 6 tPZH 3.2 5.6 8.5 3.2 9.7 3.2 9.3 OOEE YY nnss tPZL 3.7 6.3 9.2 3.7 10.4 3.7 10.2 tPHZ 1.6 3.6 5.5 1.6 6.5 1.6 6.3 OOEE YY nnss tPLZ 3.1 5.3 7.8 3.1 9.5 3.1 8.4 NOTE 3: Load circuits and voltage waveforms are shown in Section 1. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 2–3

SN54BCT25244, SN74BCT25244 25-W OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCBS064A – JUNE 1990 – REVISED NOVEMBER 1993 2–4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

PACKAGE OPTION ADDENDUM www.ti.com 6-Feb-2020 PACKAGING INFORMATION Orderable Device Status Package Type Package Pins Package Eco Plan Lead/Ball Finish MSL Peak Temp Op Temp (°C) Device Marking Samples (1) Drawing Qty (2) (6) (3) (4/5) SN74BCT25244DW ACTIVE SOIC DW 24 25 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 BCT25244 & no Sb/Br) SN74BCT25244DWR ACTIVE SOIC DW 24 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM 0 to 70 BCT25244 & no Sb/Br) (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) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based flame retardants must also meet the <=1000ppm threshold requirement. (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. 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. Addendum-Page 1

PACKAGE OPTION ADDENDUM www.ti.com 6-Feb-2020 Addendum-Page 2

PACKAGE MATERIALS INFORMATION www.ti.com 14-Feb-2019 TAPE AND REEL INFORMATION *Alldimensionsarenominal Device Package Package Pins SPQ Reel Reel A0 B0 K0 P1 W Pin1 Type Drawing Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant (mm) W1(mm) SN74BCT25244DWR SOIC DW 24 2000 330.0 24.4 10.75 15.7 2.7 12.0 24.0 Q1 PackMaterials-Page1

PACKAGE MATERIALS INFORMATION www.ti.com 14-Feb-2019 *Alldimensionsarenominal Device PackageType PackageDrawing Pins SPQ Length(mm) Width(mm) Height(mm) SN74BCT25244DWR SOIC DW 24 2000 350.0 350.0 43.0 PackMaterials-Page2

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