SN74ALVCH244 OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS www.ti.com SCES112F – JULY 1997 – REVISED AUGUST 2004 FEATURES • • • • • • DGV, DW, NS, OR PW PACKAGE (TOP VIEW) Operates From 1.65 V to 3.6 V Max tpd of 2.8 ns at 3.3 V ±24-mA Output Drive at 3.3 V Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors 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) 1OE 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 VCC 2OE 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1 DESCRIPTION/ORDERING INFORMATION This octal buffer/line driver is designed for 1.65-V to 3.6-V VCC operation. The SN74ALVCH244 is organized as two 4-bit line 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. 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. Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. ORDERING INFORMATION PACKAGE (1) TA SOIC - DW -40°C to 85°C SOP - NS TSSOP - PW TVSOP - DGV (1) ORDERABLE PART NUMBER Tube SN74ALVCH244DW Tape and reel SN74ALVCH244DWR Tape and reel SN74ALVCH244NSR Tube SN74ALVCH244PW Tape and reel SN74ALVCH244PWR Tape and reel SN74ALVCH244DGVR TOP-SIDE MARKING ALVCH244 ALVCH244 VB244 VB244 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE (each buffer) INPUTS OE A OUTPUT Y L H H L L L H X Z 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 © 1997–2004, Texas Instruments Incorporated SN74ALVCH244 OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS www.ti.com SCES112F – JULY 1997 – REVISED AUGUST 2004 LOGIC DIAGRAM (POSITIVE LOGIC) 1OE 1A1 1A2 1A3 1A4 1 2OE 2 18 4 16 6 14 8 12 1Y1 2A1 1Y2 2A2 1Y3 2A3 1Y4 2A4 19 11 9 13 7 15 5 17 3 2Y1 2Y2 2Y3 2Y4 ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) VCC MIN MAX Supply voltage range -0.5 4.6 V range (2) -0.5 4.6 V -0.5 VCC + 0.5 VI Input voltage VO Output voltage range (2) (3) IIK Input clamp current VI < 0 IOK Output clamp current VO < 0 IO Continuous output current Continuous current through VCC or GND θJA Tstg (1) (2) (3) (4) 2 Package thermal impedance (4) Storage temperature range V -50 mA -50 mA ±50 mA ±100 mA DGV package 92 DW package 58 NS package 60 PW package 83 -65 UNIT 150 °C/W °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. The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed. This value is limited to 4.6 V maximum. The package thermal impedance is calculated in accordance with JESD 51-7. SN74ALVCH244 OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS www.ti.com SCES112F – JULY 1997 – REVISED AUGUST 2004 RECOMMENDED OPERATING CONDITIONS (1) VCC Supply voltage VCC = 1.65 V to 1.95 V VIH High-level input voltage MIN MAX 1.65 3.6 Low-level input voltage VI Input voltage VO Output voltage IOH High-level output current IOL Low-level output current ∆t/∆v Input transition rise or fall rate TA Operating free-air temperature (1) V 0.65 × VCC VCC = 2.3 V to 2.7 V 1.7 VCC = 2.7 V to 3.6 V 2 V 0.35 × VCC VCC = 1.65 V to 1.95 V VIL UNIT VCC = 2.3 V to 2.7 V 0.7 VCC = 2.7 V to 3.6 V 0.8 V 0 VCC V 0 VCC V VCC = 1.65 V -4 VCC = 2.3 V -12 VCC = 2.7 V -12 VCC = 3 V -24 VCC = 1.65 V 4 VCC = 2.3 V 12 VCC = 2.7 V 12 VCC = 3 V 24 -40 mA mA 5 ns/V 85 °C All unused control 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 SN74ALVCH244 OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS www.ti.com SCES112F – JULY 1997 – REVISED AUGUST 2004 ELECTRICAL CHARACTERISTICS over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS IOH = -100 µA 1.65 V to 3.6 V 1.65 V IOH = -6 mA 2.3 V 2 2.3 V 1.7 2.7 V 2.2 3V 2.4 IOH = -24 mA 3V 2 IOL = 100 µA IOH = -12 mA 0.2 1.65 V 0.45 IOL = 6 mA 2.3 V 0.4 2.3 V 0.7 VI = VCC or GND II(hold) 1.65 V 1.65 V (2) VI = 0.7 V 2.3 V 45 VI = 1.7 V 2.3 V -45 VI = 0.8 V 3V 75 3V -75 VI = VCC or GND, IO = 0 ∆ICC One input at VCC - 0.6 V, Other inputs at VCC or GND (1) (2) (3) V µA µA 3.6 V ±500 3.6 V ±10 µA 3.6 V 10 µA 3 V to 3.6 V 750 µA V (3) ICC Outputs ±5 VI = 1.07 V VO = VCC or GND Co 0.55 VI = 0.58 V VI = 0 to 3.6 Data inputs 0.4 3V (2) IOZ Control inputs 2.7 V 3.6 V VI = 2 V Ci V 1.65 V to 3.6 V IOL = 24 mA UNIT 1.2 IOL = 4 mA IOL = 12 mA II MAX VCC - 0.2 IOH = -4 mA VOH VOL MIN TYP (1) VCC VI = VCC or GND 3.3 V VO = VCC or GND 3.3 V 4.5 pF 6 8 pF All typical values are at VCC = 3.3 V, TA = 25°C. This information was not available at the time of publication. This is the bus-hold maximum dynamic current. It is the minimum overdrive current required to switch the input from one state to another. SWITCHING CHARACTERISTICS over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1) FROM (INPUT) TO (OUTPUT) VCC = 1.8 V tpd A Y ten OE tdis OE PARAMETER (1) 4 MIN MAX (1) 1 Y (1) 1.5 Y (1) 1 This information was not available at the time of publication. TYP VCC = 2.5 V ± 0.2 V VCC = 2.7 V MIN VCC = 3.3 V ± 0.3 V UNIT MAX MIN MAX 3.1 3.1 1.1 2.8 ns 5.4 5.3 1.5 4.5 ns 4.1 4.4 1.7 4.2 ns SN74ALVCH244 OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS www.ti.com SCES112F – JULY 1997 – REVISED AUGUST 2004 OPERATING CHARACTERISTICS TA = 25°C TEST CONDITIONS PARAMETER Cpd (1) Power dissipation capacitance per buffer/driver Outputs enabled Outputs disabled CL = 0, f = 10 MHz VCC = 1.8 V VCC = 2.5 V VCC = 3.3 V TYP TYP TYP (1) 22 28 (1) 1.5 4 UNIT pF This information was not available at the time of publication. 5 SN74ALVCH244 OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS www.ti.com SCES112F – JULY 1997 – REVISED AUGUST 2004 PARAMETER MEASUREMENT INFORMATION VLOAD S1 RL From Output Under Test Open GND CL (see Note A) RL TEST S1 tpd tPLZ/tPZL tPHZ/tPZH Open VLOAD GND LOAD CIRCUIT INPUT 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 tw VI Timing Input VM VM VM 0V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES VM VM 0V tPLH Output Control (low-level enabling) tPLZ VLOAD/2 VM tPZH VOH VM VOL VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES VM 0V Output Waveform 1 S1 at VLOAD (see Note B) tPHL VM VI VM tPZL VI Input VOLTAGE WAVEFORMS PULSE DURATION th VI Data Input VM 0V 0V tsu Output VI VM Input Output Waveform 2 S1 at GND (see Note B) VOL + V∆ VOL tPHZ VOH VM VOH − V∆ 0V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES 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 6 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 74ALVCH244DGVRE4 ACTIVE TVSOP DGV 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 74ALVCH244DGVRG4 ACTIVE TVSOP DGV 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALVCH244DGVR ACTIVE TVSOP DGV 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALVCH244DW ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALVCH244DWE4 ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALVCH244DWG4 ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALVCH244DWR ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALVCH244DWRE4 ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALVCH244DWRG4 ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALVCH244NSR ACTIVE SO NS 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALVCH244NSRE4 ACTIVE SO NS 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALVCH244NSRG4 ACTIVE SO NS 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALVCH244PW ACTIVE TSSOP PW 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALVCH244PWE4 ACTIVE TSSOP PW 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALVCH244PWG4 ACTIVE TSSOP PW 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALVCH244PWLE OBSOLETE TSSOP PW 20 SN74ALVCH244PWR ACTIVE TSSOP PW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALVCH244PWRE4 ACTIVE TSSOP PW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALVCH244PWRG4 ACTIVE TSSOP PW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TBD Lead/Ball Finish Call TI MSL Peak Temp (3) 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. Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com 4-Jun-2007 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 to Customer on an annual basis. Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 16-Jun-2007 TAPE AND REEL INFORMATION Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com Device 16-Jun-2007 Package Pins Site Reel Diameter (mm) Reel Width (mm) A0 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant SN74ALVCH244DGVR DGV 20 MLA 330 12 7.0 5.6 1.6 8 12 Q1 SN74ALVCH244DWR DW 20 MLA 330 24 10.8 13.0 2.7 12 24 Q1 SN74ALVCH244NSR NS 20 MLA 330 24 8.2 13.0 2.5 12 24 Q1 SN74ALVCH244PWR PW 20 MLA 330 16 6.95 7.1 1.6 8 16 Q1 TAPE AND REEL BOX INFORMATION Device Package Pins Site Length (mm) Width (mm) Height (mm) SN74ALVCH244DGVR DGV 20 MLA 342.9 336.6 20.64 SN74ALVCH244DWR DW 20 MLA 333.2 333.2 31.75 SN74ALVCH244NSR NS 20 MLA 333.2 333.2 31.75 SN74ALVCH244PWR PW 20 MLA 342.9 336.6 28.58 Pack Materials-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 16-Jun-2007 Pack Materials-Page 3 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 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. 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