SN54ALS688, SN74ALS688 8-BIT IDENTITY COMPARATORS SDAS228A - JUNE 1982 - REVISED JANUARY 1995 SN54ALS688 . . . J PACKAGE SN74ALS688 . . . DW OR N PACKAGE (TOP VIEW) G P0 Q0 P1 Q1 P2 Q2 P3 Q3 GND description These identity comparators perform comparisons on two 8-bit binary or BCD words and provide P = Q outputs. These devices have totem-pole outputs. P=Q P>Q ENABLE G L L L H P<Q L H X H H 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 P1 Q1 P2 Q2 P3 4 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 Q7 P7 Q6 P6 Q5 Q3 GND P4 Q4 P5 DATA P, Q OUTPUT P=Q 2 VCC P=Q Q7 P7 Q6 P6 Q5 P5 Q4 P4 SN54ALS688 . . . FK PACKAGE (TOP VIEW) FUNCTION TABLE INPUTS 20 Q0 P0 The SN54ALS688 is characterized for operation over the full military temperature range of - 55C to 125C. The SN74ALS688 is characterized for operation from 0C to 70C. 1 P=Q Compare Two 8-Bit Words Totem-Pole Outputs (P = Q) ALS688 Are Identical to ALS521 Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs G VCC * * * * Copyright 1995, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. 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 1 SN54ALS688, SN74ALS688 8-BIT IDENTITY COMPARATORS SDAS228A - JUNE 1982 - REVISED JANUARY 1995 logic symbol 1 G P0 P1 P2 P3 P4 P5 P6 P7 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 2 COMP G1 0 4 6 8 P 11 13 15 17 3 1P=Q 7 0 5 7 9 Q 12 14 16 18 7 This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. 2 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 19 P=Q SN54ALS688, SN74ALS688 8-BIT IDENTITY COMPARATORS SDAS228A - JUNE 1982 - REVISED JANUARY 1995 logic diagram (positive logic) P7 Q7 P6 Q6 P5 Q5 P4 Q4 17 18 15 16 13 14 11 12 19 P3 Q3 P2 Q2 P1 Q1 P0 Q0 G 8 P=Q 9 6 7 4 5 2 3 1 absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Operating free-air temperature range, TA: SN54ALS688 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 55C to 125C SN74ALS688 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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. POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 3 SN54ALS688, SN74ALS688 8-BIT IDENTITY COMPARATORS SDAS228A - JUNE 1982 - REVISED JANUARY 1995 recommended operating conditions SN54ALS688 SN74ALS688 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 0.7 0.8 High-level output current -1 - 2.6 mA IOL TA Low-level output current 12 24 mA 70 C High-level input voltage 2 Operating free-air temperature 2 - 55 125 V V 0 V electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK TEST CONDITIONS SN54ALS688 TYP MAX MIN SN74ALS688 TYP MAX MIN VCC = 4.5 V, VCC = 4.5 V to 5.5 V, II = - 18 mA IOH = - 0.4 mA VCC = 4 4.5 5V IOH = - 1 mA IOH = - 2.6 mA VOL 5V VCC = 4 4.5 IOL = 12 mA IOL = 24 mA II VCC = 5.5 V, VI = 7 V 0.1 0.1 mA IIH VCC = 5.5 V, VI = 2.7 V 20 20 A IIL IO VCC = 5.5 V, VI = 0.4 V - 0.1 mA VCC = 5.5 V, VO = 2.25 V -112 mA VOH - 1.5 VCC - 2 2.4 - 1.5 UNIT VCC - 2 V 3.3 2.4 0.25 3.3 0.4 0.25 0.4 0.35 0.5 - 0.1 - 20 V -112 - 30 V ICC VCC = 5.5 V, See Note 1 12 19 12 19 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. NOTE 1: ICC is measured with G grounded, P and Q at 4.5 V. switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 , TA = MIN to MAX SN54ALS688 tPLH tPHL P P=Q tPLH tPHL Q P=Q tPLH tPHL G P=Q MIN MAX MIN MAX 3 16 3 12 5 25 5 20 3 16 3 12 5 25 5 20 3 15 3 12 5 25 5 22 For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. 4 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 UNIT SN74ALS688 ns ns ns SN54ALS688, SN74ALS688 8-BIT IDENTITY COMPARATORS SDAS228A - JUNE 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 From Output Under Test CL (see Note A) CL (see Note A) LOAD CIRCUIT FOR BI-STATE TOTEM-POLE OUTPUTS LOAD CIRCUIT FOR OPEN-COLLECTOR OUTPUTS 3.5 V Timing Input Test Point LOAD CIRCUIT FOR 3-STATE OUTPUTS 3.5 V High-Level Pulse 1.3 V R2 1.3 V 1.3 V 0.3 V 0.3 V Data Input tw th tsu 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 1.3 V tPHZ tPZH Waveform 2 S1 Open (see Note B) 1.3 V VOL 0.3 V VOH 1.3 V 0.3 V [0 V 3.5 V 1.3 V Input 1.3 V 0.3 V tPHL tPLH VOH In-Phase Output 1.3 V 1.3 V VOL tPLH tPHL VOH Out-of-Phase Output (see Note C) 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 5 PACKAGE OPTION ADDENDUM www.ti.com 25-Sep-2013 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish (2) MSL Peak Temp Op Temp (C) Device Marking (3) (4/5) 5962-88578012A ACTIVE LCCC FK 20 1 TBD POST-PLATE N / A for Pkg Type -55 to 125 596288578012A SNJ54ALS 688FK 5962-8857801RA ACTIVE CDIP J 20 1 TBD A42 N / A for Pkg Type -55 to 125 5962-8857801RA SNJ54ALS688J 5962-8857801SA ACTIVE CFP W 20 1 TBD Call TI N / A for Pkg Type -55 to 125 5962-8857801SA SNJ54ALS688W SN54ALS688J ACTIVE CDIP J 20 1 TBD A42 N / A for Pkg Type -55 to 125 SN54ALS688J SN74ALS688DW ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 0 to 70 ALS688 SN74ALS688DWE4 ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 0 to 70 ALS688 SN74ALS688DWG4 ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 0 to 70 ALS688 SN74ALS688DWR ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 0 to 70 ALS688 SN74ALS688DWRE4 ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 0 to 70 ALS688 SN74ALS688DWRG4 ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 0 to 70 ALS688 SN74ALS688N ACTIVE PDIP N 20 20 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type 0 to 70 SN74ALS688N SN74ALS688N3 OBSOLETE PDIP N 20 TBD Call TI Call TI 0 to 70 SN74ALS688NE4 ACTIVE PDIP N 20 20 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type 0 to 70 SN74ALS688N SN74ALS688NSR ACTIVE SO NS 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 0 to 70 ALS688 SN74ALS688NSRE4 ACTIVE SO NS 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 0 to 70 ALS688 SN74ALS688NSRG4 ACTIVE SO NS 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 0 to 70 ALS688 SNJ54ALS688FK ACTIVE LCCC FK 20 1 TBD POST-PLATE N / A for Pkg Type -55 to 125 Addendum-Page 1 596288578012A Samples PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 25-Sep-2013 Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish (2) MSL Peak Temp Op Temp (C) Device Marking (3) (4/5) SNJ54ALS 688FK SNJ54ALS688J ACTIVE CDIP J 20 1 TBD A42 N / A for Pkg Type -55 to 125 5962-8857801RA SNJ54ALS688J SNJ54ALS688W ACTIVE CFP W 20 1 TBD Call TI N / A for Pkg Type -55 to 125 5962-8857801SA SNJ54ALS688W (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. (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. 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Addendum-Page 2 Samples PACKAGE OPTION ADDENDUM www.ti.com 25-Sep-2013 OTHER QUALIFIED VERSIONS OF SN54ALS688, SN74ALS688 : * Catalog: SN74ALS688 * Military: SN54ALS688 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 SN74ALS688DWR SOIC DW 20 2000 330.0 24.4 10.8 13.0 2.7 12.0 24.0 Q1 SN74ALS688NSR SO NS 20 2000 330.0 24.4 8.2 13.0 2.5 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) SN74ALS688DWR SOIC DW 20 2000 367.0 367.0 45.0 SN74ALS688NSR SO NS 20 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 JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. 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