SN74LVC240A OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS www.ti.com SCAS293K – JANUARY 1993 – REVISED FEBRUARY 2005 FEATURES • • • • • • • • • DB, DGV, DW, NS, OR PW PACKAGE (TOP VIEW) Operates From 1.65 V to 3.6 V Inputs Accept Voltages to 5.5 V Max tpd of 6.5 ns at 3.3 V Typical VOLP (Output Ground Bounce) <0.8 V at VCC = 3.3 V, TA = 25°C Typical VOHV (Output VOH Undershoot) >2 V at VCC = 3.3 V, TA = 25°C Supports Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V VCC) Ioff Supports Partial-Power-Down-Mode Operation Latch-Up Performance Exceeds 250 mA Per JESD 17 ESD Protection Exceeds JESD 22 – 2000-V Human-Body Model (A114-A) – 200-V Machine Model (A115-A) – 1000-V Charged-Device Model (C101) 1OE 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND 1 20 2 3 19 4 5 17 16 6 7 15 8 9 13 12 10 11 18 14 VCC 2OE 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1 DESCRIPTION/ORDERING INFORMATION This octal buffer/driver is designed for 1.65-V to 3.6-V VCC operation. The SN74LVC240A is designed specifically to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. This device is organized as two 4-bit buffers/drivers with separate output-enable (OE) inputs. When OE is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state. Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. ORDERING INFORMATION PACKAGE (1) TA SN74LVC240ADW Reel of 2000 SN74LVC240ADWR SOP – NS Reel of 2000 SN74LVC240ANSR LVC240A SSOP – DB Reel of 2000 SN74LVC240ADBR LC240A Tube of 70 SN74LVC240APW Reel of 2000 SN74LVC240APWR Reel of 250 SN74LVC240APWT Reel of 2000 SN74LVC240ADGVR TSSOP – PW TVSOP – DGV (1) TOP-SIDE MARKING Tube of 25 SOIC – DW –40°C to 85°C ORDERABLE PART NUMBER LVC240A LC240A LC240A 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. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 1993–2005, Texas Instruments Incorporated SN74LVC240A OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS www.ti.com SCAS293K – JANUARY 1993 – REVISED FEBRUARY 2005 FUNCTION TABLE (EACH 4-BIT BUFFER) INPUTS OE A OUTPUT Y L H L L L H H X Z LOGIC DIAGRAM (POSITIVE LOGIC) 1OE 1A1 1A2 1A3 1A4 2OE 2A1 2A2 2A3 2A4 2 1 2 18 4 16 6 14 8 12 1Y1 1Y2 1Y3 1Y4 19 11 9 13 7 15 5 17 3 2Y1 2Y2 2Y3 2Y4 SN74LVC240A OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS www.ti.com Absolute Maximum Ratings SCAS293K – JANUARY 1993 – REVISED FEBRUARY 2005 (1) over operating free-air temperature range (unless otherwise noted) MIN MAX VCC Supply voltage range –0.5 6.5 V VI Input voltage range (2) –0.5 6.5 V –0.5 6.5 V –0.5 VCC + 0.5 state (2) UNIT VO Voltage range, applied to any output in the high-impedance or power-off VO Voltage range, applied to any output in the high or low state (2) (3) IIK Input clamp current VI < 0 –50 mA IOK Output clamp current VO < 0 –50 mA IO Continuous output current ±50 mA ±100 mA Continuous current through VCC or GND θJA Package thermal impedance (4) DB package 70 DGV package 92 DW package 58 NS package 60 PW package Tstg (1) (2) (3) (4) Storage temperature range V °C/W 83 –65 °C 150 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. The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed. The value of VCC is provided in the recommended operating conditions table. The package thermal impedance is calculated in accordance with JESD 51-7. Recommended Operating Conditions (1) VCC Supply voltage VIH High-level input voltage Operating Data retention only VCC = 1.65 V to 1.95 V MIN MAX 1.65 3.6 1.5 Low-level input voltage VI 1.7 VCC = 2.7 V to 3.6 V 2 VO Output voltage 0.35 × VCC 0.7 VCC = 2.7 V to 3.6 V 0.8 0 5.5 High or low state 0 VCC 3-state 0 5.5 VCC = 1.65 V IOH High-level output current Low-level output current ∆t/∆v Input transition rise or fall rate TA Operating free-air temperature (1) V V V –4 VCC = 2.3 V –8 VCC = 2.7 V –12 VCC = 3 V –24 VCC = 1.65 V IOL V VCC = 2.3 V to 2.7 V Input voltage V 0.65 × VCC VCC = 2.3 V to 2.7 V VCC = 1.65 V to 1.95 V VIL UNIT mA 4 VCC = 2.3 V 8 VCC = 2.7 V 12 VCC = 3 V 24 –40 mA 6 ns/V 85 °C 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. 3 SN74LVC240A OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS www.ti.com SCAS293K – JANUARY 1993 – REVISED FEBRUARY 2005 Electrical Characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC IOH = –100 µA VOH 1.65 V to 3.6 V 1.2 IOH = –8 mA 2.3 V 1.7 2.7 V 2.2 3V 2.4 IOH = –24 mA 3V 2.2 IOL = 100 µA 1.65 V to 3.6 V 0.2 IOL = 4 mA 1.65 V 0.45 IOL = 8 mA 2.3 V 0.7 IOL = 12 mA 2.7 V 0.4 3V 0.55 V V 3.6 V ±5 µA Ioff VI or VO = 5.5 V 0 ±10 µA IOZ VO = 0 to 5.5 V 3.6 V ±10 µA ICC ∆ICC (1) (2) VI = 0 to 5.5 V UNIT VCC – 0.2 1.65 V IOL = 24 mA II TYP (1) MAX IOH = –4 mA IOH = –12 mA VOL MIN VI = VCC or GND IO = 0 3.6 V ≤ VI ≤ 5.5 V (2) One input at VCC – 0.6 V, 10 3.6 V Other inputs at VCC or GND µA 10 2.7 V to 3.6 V µA 500 Ci VI = VCC or GND 3.3 V 4 pF Co VO = VCC or GND 3.3 V 5.5 pF All typical values are at VCC = 3.3 V, TA = 25°C. This applies in the disabled state only. Switching Characteristics over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1) PARAMETER tpd FROM (INPUT) TO (OUTPUT) A VCC = 1.8 V ± 0.15 V VCC = 2.5 V ± 0.2 V MIN MAX MIN MAX Y (1) (1) (1) (1) (1) (1) (1) ten OE Y (1) tdis OE Y (1) VCC = 3.3 V ± 0.3 V VCC = 2.7 V MIN MIN MAX (1) 7.5 1.3 6.5 ns (1) 9 1.1 8 ns (1) 8 1.4 7 ns 1 ns tsk(o) (1) UNIT MAX This information was not available at the time of publication. Operating Characteristics TA = 25°C TEST CONDITIONS PARAMETER Cpd (1) 4 Power dissipation capacitance Outputs enabled Outputs disabled This information was not available at the time of publication. f = 10 MHz VCC = 1.8 V VCC = 2.5 V VCC = 3.3 V TYP TYP TYP (1) (1) 32 (1) (1) 3 UNIT pF SN74LVC240A OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS www.ti.com SCAS293K – JANUARY 1993 – REVISED FEBRUARY 2005 PARAMETER MEASUREMENT INFORMATION VLOAD S1 RL From Output Under Test CL (see Note A) Open GND RL TEST S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open VLOAD GND LOAD CIRCUIT INPUTS VCC 1.8 V ± 0.15 V 2.5 V ± 0.2 V 2.7 V 3.3 V ± 0.3 V VI tr/tf VCC VCC 2.7 V 2.7 V ≤2 ns ≤2 ns ≤2.5 ns ≤2.5 ns VM VLOAD CL RL V∆ VCC/2 VCC/2 1.5 V 1.5 V 2 × VCC 2 × VCC 6V 6V 30 pF 30 pF 50 pF 50 pF 1 kΩ 500 Ω 500 Ω 500 Ω 0.15 V 0.15 V 0.3 V 0.3 V VI Timing Input VM 0V tw tsu VI Input VM VM th VI Data Input VM VM 0V 0V VOLTAGE WAVEFORMS PULSE DURATION VOLTAGE WAVEFORMS SETUP AND HOLD TIMES VI VM Input VM 0V tPLH VM VM VOL tPHL VM VM 0V Output Waveform 1 S1 at VLOAD (see Note B) tPLH tPLZ VLOAD/2 VM tPZH VOH Output VM tPZL tPHL VOH Output VI Output Control VM VOL VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES INVERTING AND NONINVERTING OUTPUTS Output Waveform 2 S1 at GND (see Note B) VOL + V∆ VOL tPHZ VM VOH − V∆ VOH ≈0 V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES LOW- AND HIGH-LEVEL ENABLING NOTES: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such 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. C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω. D. The outputs are measured one at a time, with one transition per measurement. E. tPLZ and tPHZ are the same as tdis. F. tPZL and tPZH are the same as ten. G. tPLH and tPHL are the same as tpd. H. All parameters and waveforms are not applicable to all devices. Figure 1. Load Circuit and Voltage Waveforms 5 PACKAGE OPTION ADDENDUM www.ti.com 4-Jun-2007 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty SN74LVC240ADBLE OBSOLETE SSOP DB 20 SN74LVC240ADBR ACTIVE SSOP DB 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240ADBRE4 ACTIVE SSOP DB 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240ADBRG4 ACTIVE SSOP DB 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240ADGVR ACTIVE TVSOP DGV 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240ADGVRE4 ACTIVE TVSOP DGV 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240ADGVRG4 ACTIVE TVSOP DGV 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240ADW ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240ADWE4 ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240ADWG4 ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240ADWR ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240ADWRE4 ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240ADWRG4 ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240ANSR ACTIVE SO NS 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240ANSRE4 ACTIVE SO NS 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240ANSRG4 ACTIVE SO NS 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240APW ACTIVE TSSOP PW 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240APWE4 ACTIVE TSSOP PW 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240APWG4 ACTIVE TSSOP PW 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240APWLE OBSOLETE TSSOP PW 20 SN74LVC240APWR ACTIVE TSSOP PW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240APWRE4 ACTIVE TSSOP PW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240APWRG4 ACTIVE TSSOP PW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240APWT ACTIVE TSSOP PW 20 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240APWTE4 ACTIVE TSSOP PW 20 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74LVC240APWTG4 ACTIVE TSSOP PW 20 250 Green (RoHS & CU NIPDAU Level-1-260C-UNLIM TBD TBD Addendum-Page 1 Lead/Ball Finish Call TI Call TI MSL Peak Temp (3) Call TI Call TI PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 4-Jun-2007 Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty Lead/Ball Finish MSL Peak Temp (3) 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) 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. 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Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 4-Oct-2007 TAPE AND REEL BOX INFORMATION Device Package Pins Site Reel Diameter (mm) Reel Width (mm) A0 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant SN74LVC240ADBR DB 20 SITE 41 330 16 8.2 7.5 2.5 12 16 Q1 SN74LVC240ADGVR DGV 20 SITE 41 330 12 7.0 5.6 1.6 8 12 Q1 SN74LVC240ADWR DW 20 SITE 41 330 24 10.8 13.0 2.7 12 24 Q1 SN74LVC240ANSR NS 20 SITE 41 330 24 8.2 13.0 2.5 12 24 Q1 SN74LVC240APWR PW 20 SITE 41 330 16 6.95 7.1 1.6 8 16 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com Device 4-Oct-2007 Package Pins Site Length (mm) Width (mm) Height (mm) SN74LVC240ADBR DB 20 SITE 41 346.0 346.0 33.0 SN74LVC240ADGVR DGV 20 SITE 41 346.0 346.0 29.0 SN74LVC240ADWR DW 20 SITE 41 346.0 346.0 41.0 SN74LVC240ANSR NS 20 SITE 41 346.0 346.0 41.0 SN74LVC240APWR PW 20 SITE 41 346.0 346.0 33.0 Pack Materials-Page 2 MECHANICAL DATA MPDS006C – FEBRUARY 1996 – REVISED AUGUST 2000 DGV (R-PDSO-G**) PLASTIC SMALL-OUTLINE 24 PINS SHOWN 0,40 0,23 0,13 24 13 0,07 M 0,16 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 0°–8° 1 0,75 0,50 12 A Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,08 14 16 20 24 38 48 56 A MAX 3,70 3,70 5,10 5,10 7,90 9,80 11,40 A MIN 3,50 3,50 4,90 4,90 7,70 9,60 11,20 DIM 4073251/E 08/00 NOTES: A. B. C. D. All linear 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 per side. Falls within JEDEC: 24/48 Pins – MO-153 14/16/20/56 Pins – MO-194 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MECHANICAL DATA MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001 DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE 28 PINS SHOWN 0,38 0,22 0,65 28 0,15 M 15 0,25 0,09 8,20 7,40 5,60 5,00 Gage Plane 1 14 0,25 A 0°–ā8° 0,95 0,55 Seating Plane 2,00 MAX 0,10 0,05 MIN PINS ** 14 16 20 24 28 30 38 A MAX 6,50 6,50 7,50 8,50 10,50 10,50 12,90 A MIN 5,90 5,90 6,90 7,90 9,90 9,90 12,30 DIM 4040065 /E 12/01 NOTES: A. B. C. D. All linear 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 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MECHANICAL DATA MTSS001C – JANUARY 1995 – REVISED FEBRUARY 1999 PW (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 14 PINS SHOWN 0,30 0,19 0,65 14 0,10 M 8 0,15 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 1 7 0°– 8° A 0,75 0,50 Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,10 8 14 16 20 24 28 A MAX 3,10 5,10 5,10 6,60 7,90 9,80 A MIN 2,90 4,90 4,90 6,40 7,70 9,60 DIM 4040064/F 01/97 NOTES: A. B. C. D. All linear 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-153 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. 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