Details, datasheet, quote on part number: SN74HC684DW
CategorySemiconductors => Logic => Specialty Logic => Digital Comparator
Part familySN74HC684 8-Bit Identity/Magnitude Comparators
TitleMagnitude Comparators
Description8-Bit Identity/Magnitude Comparators 20-SOIC -40 to 85
CompanyTexas Instruments, Inc.
DatasheetDownload SN74HC684DW datasheet
Cross ref.Similar parts: HD74HC684RP
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Output Drive (IOL/IOH)(Max)(mA)5.2/-5.2
ICC @ Nom Voltage(Max)(mA)0.08
F @ Nom Voltage(Max)(Mhz)70
Operating Temperature Range(C)-40 to 85
Technology FamilyHC
tpd @ Nom Voltage(Max)(ns)58
Approx. Price (US$)3.77 | 1ku
Package GroupPDIP,SOIC
  Mecanical Data
Pin nbPackage typeInd stdJEDEC codePackage qtyCarrierDevice markWidth (mm)Length (mm)Thick (mm)Pitch (mm)
20DWSOICR-PDSO-G25TUBEHC684 7.512.82.351.27


Features, Applications

Wide Operating Voltage Range 6 V High-Current Outputs Drive To 10 LSTTL Loads Low Power Consumption, 80-µA Max ICC

Typical tpd ns ±4-mA Output Drive 5 V Low Input Current 1 µA Max Compare Two 8-Bit Words

These magnitude comparators perform comparisons of two 8-bit binary or BCD words. These devices provide = Q and > Q outputs. ORDERING INFORMATION


Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at FUNCTION TABLE DATA INPUTS P, Q P=Q P>Q P<Q OUTPUTS P=Q L H P>Q L H

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.

UNLESS OTHERWISE NOTED this document contains PRODUCTION DATA information 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

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

Supply voltage range, VCC. 7 V Input voltage range, VI (see Note 7 V Output voltage range, VO (see Note V to VCC 0.5 V Input clamp current, IIK (VI VI > VCC). ±20 mA Output clamp current, IOK (VO VO > VCC). ±20 mA Continuous output current, IO (VO 0 to VCC). ±25 mA Continuous current through VCC or GND. ±50 mA Package thermal impedance, JA (see Note 2): DW package. 58°C/W N package. 69°C/W Storage temperature range, Tstg. 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.

SN54HC684 MIN VCC VIH Supply voltage High-level input voltage VCC 2 V VCC 4.5 V VCC 6 V VCC 2 V VIL VO tt Low-level input voltage Input voltage Output voltage Input transition (rise and fall) times VCC 2 V VCC 4.5 V VCC 6 V VCC 4.5 V VCC 6 V VCC NOM 5 MAX 6 SN74HC684 MIN VCC 400 ns NOM 5 MAX 6 UNIT V

TA Operating free-air temperature °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.

PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice.


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