SDAS065B - DECEMBER 1982 - REVISED JANUARY 1995 * * * * SN54ALS576B, SN54AS576 . . . J OR W PACKAGE SN74ALS576B, SN74AS576 . . . DW OR N PACKAGE (TOP VIEW) 3-State Buffer-Type Inverting Outputs Drive Bus Lines Directly Bus-Structured Pinout Buffered Control Inputs SN74ALS577A Has Synchronous Clear Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), Standard Plastic (N, NT) and Ceramic (J) 300-mil DIPs, and Ceramic Flat (W) Packages OE 1D 2D 3D 4D 5D 6D 7D 8D GND description These octal D-type edge-triggered flip-flops feature 3-state outputs designed specifically for bus driving. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 VCC 1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q CLK 2D 1D OE VCC SN54ALS576B, SN54AS576 . . . FK PACKAGE (TOP VIEW) These flip-flops enter data on the low-to-high transition of the clock (CLK) input. The output-enable (OE) input does not affect internal operations of the flip-flops. Old data can be retained or new data can be entered while the outputs are disabled. The SN54ALS576B and SN54AS576 are characterized for operation over the full military temperature range of - 55C to 125C. The SN74ALS576B, SN74ALS577A, and SN74AS576 are characterized for operation from 0C to 70C. 4 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 2Q 3Q 4Q 5Q 6Q 8D GND CLK 8Q 7Q 3D 4D 5D 6D 7D 1Q * SN74ALS577A . . . DW OR NT PACKAGE (TOP VIEW) CLR OE 1D 2D 3D 4D 5D 6D 7D 8D NC GND 1 24 2 23 3 22 4 21 5 20 6 19 7 18 8 17 9 16 10 15 11 14 12 13 VCC NC 1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q CLK NC NC - No internal connection Copyright 1995, Texas Instruments Incorporated !"#$ % &'!!($ #% )'*+&#$ ,#$(!,'&$% &!" $ %)(&&#$% )(! $.( $(!"% (/#% %$!'"($% %$#,#!, 0#!!#$1- !,'&$ )!&(%%2 ,(% $ (&(%%#!+1 &+',( $(%$2 #++ )#!#"($(!%- * DALLAS, TEXAS 75265 * HOUSTON, TEXAS 77251-1443 POST OFFICE BOX 655303 POST OFFICE BOX 1443 1 SDAS065B - DECEMBER 1982 - REVISED JANUARY 1995 Function Tables ALS576B, AS576 (each flip-flop) INPUTS OE CLK D OUTPUT Q L H L L L H L L X Q0 H X X Z SN74ALS577A (each flip-flop) INPUTS OE CLR CLK D OUTPUT Q L L X H L H H L L H L H L H L X Q0 H X X X Z logic symbols ALS576B, AS576 OE CLK 1D 2D 3D 4D 5D 6D 7D 8D 1 11 2 SN74ALS577A EN OE C1 1D CLK 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 CLR 1Q 2Q 1D 3Q 2D 4Q 3D 5Q 4D 6Q 5D 7Q 6D 8Q 7D 8D These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown for the ALS576B and AS576 are for the DW, J, N, and W packages. 2 2 14 1 3 C1 1R 1D 22 4 21 5 20 6 19 7 18 8 17 9 16 10 15 1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q Pin numbers shown for the SN74ALS577A are for the DW and NT packages. * POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251-1443 * EN SDAS065B - DECEMBER 1982 - REVISED JANUARY 1995 logic diagrams (positive logic) ALS576B, AS576 SN74ALS577A 1 OE OE 11 CLK CLK C1 2 1D 19 CLR 2 14 1 1Q 1D C1 1D 3 22 1Q 1D To Seven Other Channels To Seven Other Channels Pin numbers shown are for the DW, J, N, and W packages. Pin numbers shown are for the DW and NT packages. absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Voltage applied to a disabled 3-state output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V Operating free-air temperature range, TA: SN54ALS576B . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55C to 125C SN74ALS576B, SN74ALS577A . . . . . . . . . . . . . . . . . 0C to 70C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -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. recommended operating conditions SN74ALS576B SN74ALS577A SN54ALS576B UNIT MIN NOM MAX MIN NOM MAX 4.5 5 5.5 4.5 5 5.5 VCC VIH Supply voltage VIL IOH Low-level input voltage 0.7 0.8 V High-level output current -1 -2.6 mA IOL Low-level output current 12 24 mA High-level input voltage fclock Clock frequency tw Pulse duration tsu Setup time before CLK th Hold time after CLK TA Operating free-air temperature 2 ALS576B 0 2 22 SN74ALS577A ALS576B, CLK high or low 25 V 0 30 0 30 ns 16.5 15 15 ns 15 SN74ALS577A CLR Data 4 0 ns 0 SN74ALS577A CLR -55 * POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251-1443 * MHz 16.5 SN74ALS577A, CLK high or low Data V 125 0 70 C 3 SDAS065B - DECEMBER 1982 - REVISED JANUARY 1995 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TYP MIN VIK VCC = 4.5 V, VCC = 4.5 V to 5.5 V, II = - 18 mA IOH = - 0.4 mA VCC = 4.5 V IOH = - 1 mA IOH = - 2.6 mA VOL VCC = 4.5 V IOL = 12 mA IOL = 24 mA IOZH IOZL VCC = 5.5 V, VCC = 5.5 V, VO = 2.7 V VO = 0.4 V II IIH VCC = 5.5 V, VCC = 5.5 V, VI = 7 V VI = 2.7 V IIL IO VCC = 5.5 V, VCC = 5.5 V, VI = 0.4 V VO = 2.25 V ICC VCC = 5.5 V VOH SN74ALS576B SN74ALS577A SN54ALS576B TEST CONDITIONS MAX TYP MIN -1.2 VCC - 2 2.4 UNIT MAX -1.2 V VCC - 2 3.3 V 2.4 0.25 -20 3.2 0.4 0.25 0.4 0.35 0.5 V A 20 20 -20 -20 A 0.1 0.1 mA 20 20 A -0.2 -0.2 mA -112 mA -112 -30 Outputs high 10 18 10 18 Outputs low 15 24 15 24 mA Outputs disabled 16 30 16 30 All typical values are at VCC = 5 V, TA = 25C. The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS. switching characteristics (see Figure 1) PARAMETER FROM (INPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, R1 = 500 , R2 = 500 , TA = MIN to MAX TO (OUTPUT) SN54ALS576B MIN fmax MAX 22 tPLH tPHL CLK Any Q tPZH tPZL OE Any Q tPHZ tPLZ OE Any Q SN74ALS576B MIN MAX UNIT SN74ALS577A MIN 30 30 24 3 14 4 14 4 20 4 14 4 14 4 24 3 18 4 18 3 23 4 18 4 18 2 14 1 10 2 10 3 29 2 15 3 15 * POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251-1443 * MHz 4 For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. 4 MAX ns ns ns SDAS065B - DECEMBER 1982 - REVISED JANUARY 1995 absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Voltage applied to a disabled 3-state output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V Operating free-air temperature range, TA: SN54AS576 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55C to 125C SN74AS576 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0C to 70C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -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. recommended operating conditions SN54AS576 SN74AS576 MIN NOM MAX MIN NOM MAX 4.5 5 5.5 4.5 5 5.5 UNIT VCC VIH Supply voltage VIL IOH Low-level input voltage 0.8 0.8 V High-level output current -12 -15 mA IOL fclock* Low-level output current tw* Pulse duration tsu* th* High-level input voltage 2 2 32 Clock frequency 0 100 0 CLK high 5 4 CLK low 4 2 Setup time, data before CLK 3 2 Hold time, data after CLK 3 2 V 48 mA 125 MHz TA Operating free-air temperature -55 125 0 70 * On products compliant to MIL-STD-883, Class B, this parameter is based on characterization data but is not production tested. * POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251-1443 * V ns ns ns C 5 SDAS065B - DECEMBER 1982 - REVISED JANUARY 1995 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK SN54AS576 TYP MAX TEST CONDITIONS MIN VCC = 4.5 V, VCC = 4.5 V to 5.5 V, II = - 18 mA IOH = - 2 mA VCC = 4.5 V IOH = - 12 mA IOH = - 15 mA VOL VCC = 4.5 V IOL = 32 mA IOL = 48 mA IOZH IOZL VCC = 5.5 V, VCC = 5.5 V, VO = 2.7 V VO = 0.4 V II IIH VCC = 5.5 V, VCC = 5.5 V, VI = 7 V VI = 2.7 V VOH -1.2 VCC - 2 2.4 -1.2 3.2 V V 2.4 0.29 3.3 0.5 0.33 0.5 50 50 A -50 A 0.1 0.1 mA 20 20 A -3 -2 -0.5 -0.5 VI = 0.4 V IO VCC = 5.5 V, VO = 2.25 V Outputs high 77 125 77 125 ICC VCC = 5.5 V Outputs low 84 135 84 135 Outputs disabled 84 135 84 135 -30 V -50 VCC = 5.5 V, All others UNIT VCC - 2 D IIL SN74AS576 TYP MAX MIN -112 -30 -112 mA mA mA All typical values are at VCC = 5 V, TA = 25C. The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS. switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, R1 = 500 , R2 = 500 , TA = MIN to MAX SN54AS576 SN74AS576 MIN fmax* MAX 100 tPLH tPHL CLK Any Q tPZH tPZL OE Any Q tPHZ tPLZ OE Any Q MIN MAX 125 * POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251-1443 * MHz 3 11 3 8 4 11 4 9 2 7 2 6 3 11 3 10 2 7 2 6 2 7 2 6 * On products compliant to MIL-STD-883, Class B, this parameter is based on characterization data but is not production tested. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. 6 UNIT ns ns ns SDAS065B - DECEMBER 1982 - REVISED JANUARY 1995 PARAMETER MEASUREMENT INFORMATION SERIES 54ALS/74ALS AND 54AS/74AS DEVICES 7V RL = R1 = R2 VCC S1 RL R1 Test Point From Output Under Test CL (see Note A) From Output Under Test RL Test Point CL (see Note A) CL (see Note A) LOAD CIRCUIT FOR BI-STATE TOTEM-POLE OUTPUTS 3.5 V High-Level Pulse 1.3 V R2 LOAD CIRCUIT FOR 3-STATE OUTPUTS LOAD CIRCUIT FOR OPEN-COLLECTOR OUTPUTS 3.5 V Timing Input Test Point From Output Under Test 1.3 V 1.3 V 0.3 V 0.3 V tsu Data Input tw th 3.5 V 1.3 V 3.5 V Low-Level Pulse 1.3 V 0.3 V 1.3 V 0.3 V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES VOLTAGE WAVEFORMS PULSE DURATIONS 3.5 V Output Control (low-level enabling) 1.3 V 1.3 V 0.3 V tPZL Waveform 1 S1 Closed (see Note B) tPLZ 3.5 V Input tPHZ 1.3 V 0.3 V tPHL tPLH VOH In-Phase Output VOL 0.3 V 1.3 V 1.3 V VOL tPLH tPHL VOH 1.3 V 1.3 V [3.5 V 1.3 V tPZH Waveform 2 S1 Open (see Note B) 1.3 V VOH Out-of-Phase Output (see Note C) 0.3 V [0 V 1.3 V 1.3 V VOL VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS 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. When measuring propagation delay items of 3-state outputs, switch S1 is open. D. All input pulses have the following characteristics: PRR 1 MHz, tr = tf = 2 ns, duty cycle = 50%. E. The outputs are measured one at a time with one transition per measurement. Figure 1. Load Circuits and Voltage Waveforms * POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251-1443 * 7 PACKAGE OPTION ADDENDUM www.ti.com 5-Sep-2011 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 8400102RA ACTIVE CDIP J 20 1 TBD Call TI Call TI Call TI 8400102SA ACTIVE CFP W 20 1 TBD Call TI SN54ALS576BJ ACTIVE CDIP J 20 1 TBD A42 SN74ALS576BDW ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALS576BDWE4 ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALS576BDWG4 ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALS576BDWR ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALS576BDWRE4 ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALS576BDWRG4 ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 20 Pb-Free (RoHS) N / A for Pkg Type SN74ALS576BN ACTIVE PDIP N 20 SN74ALS576BN3 OBSOLETE PDIP N 20 SN74ALS576BNE4 ACTIVE PDIP N 20 20 Pb-Free (RoHS) SN74ALS576BNSR ACTIVE SO NS 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALS576BNSRE4 ACTIVE SO NS 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALS576BNSRG4 ACTIVE SO NS 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALS577ADW ACTIVE SOIC DW 24 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALS577ADWE4 ACTIVE SOIC DW 24 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALS577ADWG4 ACTIVE SOIC DW 24 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALS577ADWR ACTIVE SOIC DW 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Addendum-Page 1 CU NIPDAU N / A for Pkg Type Call TI Samples (Requires Login) 84001022A TBD (3) Call TI CU NIPDAU N / A for Pkg Type PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 5-Sep-2011 Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp Samples (Requires Login) SN74ALS577ADWRE4 ACTIVE SOIC DW 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALS577ADWRG4 ACTIVE SOIC DW 24 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74ALS577ANT ACTIVE PDIP NT 24 15 Pb-Free (RoHS) TBD (3) CU NIPDAU N / A for Pkg Type SN74ALS577ANT3 OBSOLETE PDIP NT 24 SN74ALS577ANTE4 ACTIVE PDIP NT 24 15 Pb-Free (RoHS) Call TI Call TI SN74AS576DW ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AS576DWE4 ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AS576DWG4 ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM CU NIPDAU N / A for Pkg Type SN74AS576N ACTIVE PDIP N 20 20 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type SN74AS576NE4 ACTIVE PDIP N 20 20 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type SNJ54ALS576BFK ACTIVE LCCC FK 20 1 TBD POST-PLATE N / A for Pkg Type SNJ54ALS576BJ ACTIVE CDIP J 20 1 TBD A42 N / A for Pkg Type SNJ54ALS576BW ACTIVE CFP W 20 1 TBD Call TI N / A for Pkg Type SNJ54AS576FK ACTIVE LCCC FK 20 1 TBD SNJ54AS576J ACTIVE CDIP J 20 1 TBD POST-PLATE N / A for Pkg Type A42 N / A for Pkg Type (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) Addendum-Page 2 PACKAGE OPTION ADDENDUM www.ti.com (3) 5-Sep-2011 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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OTHER QUALIFIED VERSIONS OF SN54ALS576B, SN54AS576, SN74ALS576B, SN74AS576 : * Catalog: SN74ALS576B, SN74AS576 * Military: SN54ALS576B, SN54AS576 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 SN74ALS576BDWR Package Package Pins Type Drawing SOIC SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) DW 20 2000 330.0 24.4 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 10.8 13.0 2.7 12.0 24.0 Q1 SN74ALS576BNSR SO NS 20 2000 330.0 24.4 8.2 13.0 2.5 12.0 24.0 Q1 SN74ALS577ADWR SOIC DW 24 2000 330.0 24.4 10.75 15.7 2.7 12.0 24.0 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) SN74ALS576BDWR SOIC DW 20 2000 367.0 367.0 45.0 SN74ALS576BNSR SO NS 20 2000 367.0 367.0 45.0 SN74ALS577ADWR SOIC DW 24 2000 367.0 367.0 45.0 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 JESD46C and to discontinue any product or service per JESD48B. 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