8-BIT IDENTITY COMPARATORS

www.DataSheet4U.com SN54HC688, SN74HC688 8-BIT IDENTITY COMPARATORS SCLS010D – DECEMBER 1982 – REVISED AUGUST 2003 D D D Wide Operating Voltage Range of 2 V to 6 V High-Current Outputs Drive Up To 10 LSTTL Loads Low Power Consumption, 80-µA Max ICC SN54HC688 . . . J OR W PACKAGE SN74HC688 . . . DW, N, OR PW PACKAGE (TOP VIEW) D D D D Typical tpd = 14 ns ±4-mA Output Drive at 5 V Low Input Current of 1 µA Max Compare Two 8-Bit Words SN54HC688 . . . FK PACKAGE (TOP VIEW) OE P0 Q0 P1 Q1 P2 Q2 P3 Q3 GND 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VCC P=Q Q7 P7 Q6 P6 Q5 P5 Q4 P4 Q0 P0 OE VCC P=Q P1 Q1 P2 Q2 P3 4 5 6 7 8 3 2 1 20 19 18 17 16 15 14 9 10 11 12 13 Q7 P7 Q6 P6 Q5 description/ordering information These identity comparators perform comparisons of two 8-bit binary or BCD words. An output-enable (OE) input may be used to force the output to the high level. ORDERING INFORMATION TA PDIP – N –40°C 85°C –40 C to 85 C SOIC – DW TSSOP – PW CDIP – J –55°C 125°C –55 C to 125 C CFP – W LCCC – FK PACKAGE† Tube of 20 Tube of 25 Reel of 2000 Tube of 2000 Reel of 250 Tube of 20 Tube of 85 Tube of 55 ORDERABLE PART NUMBER SN74HC688N SN74HC688DW SN74HC688DWR SN74HC688PWR SN74HC688PWT SNJ54HC688J SNJ54HC688W SNJ54HC688FK TOP-SIDE MARKING SN74HC688N HC688 HC688 SNJ54HC688J SNJ54HC688W SNJ54HC688FK † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE INPUTS DATA P, Q P=Q P>Q P VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Output clamp current, IOK (VO < 0 or VO > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA Package thermal impedance, θJA (see Note 2): DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69°C/W PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –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. NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51-7. 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 www.DataSheet4U.com SN54HC688, SN74HC688 8-BIT IDENTITY COMPARATORS SCLS010D – DECEMBER 1982 – REVISED AUGUST 2003 recommended operating conditions (see Note 3) SN54HC688 MIN VCC VIH Supply voltage High-level input voltage VCC = 2 V VCC = 4.5 V VCC = 6 V VCC = 2 V VIL VI VO tt Low-level input voltage Input voltage Output voltage Input transition (rise and fall) time VCC = 2 V VCC = 4.5 V VCC = 4.5 V VCC = 6 V 0 0 2 1.5 3.15 4.2 0.5 1.35 1.8 VCC VCC 1000 500 0 0 NOM 5 MAX 6 SN74HC688 MIN 2 1.5 3.15 4.2 0.5 1.35 1.8 VCC VCC 1000 500 ns V V V V NOM 5 MAX 6 UNIT V VCC = 6 V 400 400 TA Operating free-air temperature –55 125 –40 85 °C NOTE 3: 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. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC 2V IOH = –20 µA A VOH VI = VIH or VIL IOH = –4 mA IOH = –5.2 mA IOL = 20 µA A VOL VI = VIH or VIL IOL = 4 mA IOL = 5.2 mA II ICC Ci VI = VCC or 0 VI = VCC or 0, IO = 0 4.5 V 6V 4.5 V 6V 2V 4.5 V 6V 4.5 V 6V 6V 6V 2 V to 6 V 3 MIN 1.9 4.4 5.9 3.98 5.48 TA = 25°C TYP MAX 1.998 4.499 5.999 4.3 5.8 0.002 0.001 0.001 0.17 0.15 ±0.1 0.1 0.1 0.1 0.26 0.26 ±100 8 10 SN54HC688 MIN 1.9 4.4 5.9 3.7 5.2 0.1 0.1 0.1 0.4 0.4 ±1000 160 10 MAX SN74HC688 MIN 1.9 4.4 5.9 3.84 5.34 0.1 0.1 0.1 0.33 0.33 ±1000 80 10 nA µA pF V V MAX UNIT POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 www.DataSheet4U.com SN54HC688, SN74HC688 8-BIT IDENTITY COMPARATORS switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC 2V P or Q tpd OE P=Q P=Q 4.5 V 6V 2V 4.5 V 6V 2V tt Any 4.5 V 6V MIN TA = 25°C TYP MAX 113 30 24 66 16 14 38 8 6 210 42 36 120 24 20 75 15 13 SN54HC688 MIN MAX 313 63 53 179 36 30 110 22 19 SN74HC688 MIN MAX 265 53 45 151 30 26 95 19 16 ns ns UNIT SCLS010D – DECEMBER 1982 – REVISED AUGUST 2003 operating characteristics, TA = 25°C PARAMETER Cpd Power dissipation capacitance TEST CONDITIONS No load TYP 40 UNIT pF 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 www.DataSheet4U.com SN54HC688, SN74HC688 8-BIT IDENTITY COMPARATORS SCLS010D – DECEMBER 1982 – REVISED AUGUST 2003 PARAMETER MEASUREMENT INFORMATION From Output Under Test Test Point CL = 50 pF (see Note A) In-Phase Output Input VCC 50% tPLH 50% 10% tPHL Out-of-Phase Output 90% 50% 10% tf 90% tr Input 50% 10% 90% 90% VCC 50% 10% 0 V tf tPLH 50% 10% 90% tr 50% 0V tPHL 90% VOH 50% 10% VOL tf VOH VOL LOAD CIRCUIT tr VOLTAGE WAVEFORM INPUT RISE AND FALL TIMES VOLTAGE WAVEFORMS PROPAGATION DELAY AND OUTPUT TRANSITION TIMES NOTES: A. CL includes probe and test-fixture capacitance. B. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr = 6 ns, tf = 6 ns. C. The outputs are measured one at a time with one input transition per measurement. D. tPLH and tPHL are the same as tpd. Figure 1. Load Circuit and Voltage Waveforms POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 www.DataSheet4U.com www.ti.com PACKAGE OPTION ADDENDUM 9-Oct-2007 PACKAGING INFORMATION Orderable Device 5962-86818012A 5962-8681801RA SN54HC688J SN74HC688DW SN74HC688DWE4 SN74HC688DWG4 SN74HC688DWR SN74HC688DWRE4 SN74HC688DWRG4 SN74HC688N SN74HC688NE4 SN74HC688PWLE SN74HC688PWR SN74HC688PWRE4 SN74HC688PWRG4 SN74HC688PWT SN74HC688PWTE4 SN74HC688PWTG4 SNJ54HC688FK SNJ54HC688J (1) Status (1) ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE OBSOLETE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE Package Type LCCC CDIP CDIP SOIC SOIC SOIC SOIC SOIC SOIC PDIP PDIP TSSOP TSSOP TSSOP TSSOP TSSOP TSSOP TSSOP LCCC CDIP Package Drawing FK J J DW DW DW DW DW DW N N PW PW PW PW PW PW PW FK J Pins Package Eco Plan (2) Qty 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 1 1 1 25 25 25 TBD TBD TBD Green (RoHS & no Sb/Br) Green (RoHS & no Sb/Br) Green (RoHS & no Sb/Br) Lead/Ball Finish MSL Peak Temp (3) POST-PLATE N / A for Pkg Type A42 SNPB A42 SNPB CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU Call TI CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU CU NIPDAU N / A for Pkg Type N / A for Pkg Type Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM N / A for Pkg Type N / A for Pkg Type Call TI Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM Level-1-260C-UNLIM 2000 Green (RoHS & no Sb/Br) 2000 Green (RoHS & no Sb/Br) 2000 Green (RoHS & no Sb/Br) 20 20 Pb-Free (RoHS) Pb-Free (RoHS) TBD 2000 Green (RoHS & no Sb/Br) 2000 Green (RoHS & no Sb/Br) 2000 Green (RoHS & no Sb/Br) 250 250 250 1 1 Green (RoHS & no Sb/Br) Green (RoHS & no Sb/Br) Green (RoHS & no Sb/Br) TBD TBD POST-PLATE N / A for Pkg Type A42 SNPB N / A for Pkg Type 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 recomme