Wide Operating Voltage Range High-Current Outputs Drive LSTTL Loads Po

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Wide Operating Voltage Range High-Current Outputs Drive LSTTL Loads Po

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SN54HC684, SN74HC684 8-BIT MAGNITUDE COMPARATORS
Wide Operating Voltage Range High-Current Outputs Drive LSTTL Loads Power Consumption, 80-µA
SN54HC684 PACKAGE SN74HC684 PACKAGE (TOP VIEW)
Typical ±4-mA Output Drive Input Current Compare 8-Bit Words
SN54HC684 PACKAGE (TOP VIEW)
description/ordering information
These magnitude comparators perform comparisons 8-bit binary words. These devices provide outputs. ORDERING INFORMATION
PDIP -40°C 85°C SOIC CDIP -55°C 125°C LCCC PACKAGE Tube Tube Tape reel Tube Tube Tube ORDERABLE PART NUMBER SN74HC684N SN74HC684DW SN74HC684DWR SNJ54HC684J SNJ54HC684W SNJ54HC684FK TOP-SIDE MARKING SN74HC684N HC684 SNJ54HC684J SNJ54HC684W SNJ54HC684FK
Package drawings, standard packing quantities, thermal data, symbolization, design guidelines available www.ti.com/sc/package. FUNCTION TABLE DATA INPUTS OUTPUTS
function generated applying 2-input NAND gate.
Please aware that important notice concerning availability, standard warranty, critical applications Texas Instruments semiconductor products disclaimers thereto appears this data sheet.
Copyright 2003, Texas Instruments Incorporated
UNLESS OTHERWISE NOTED this document contains PRODUCTION DATA information current publication date. Products conform specifications terms Texas Instruments standard warranty. Production processing does necessarily include testing parameters. POST OFFICE 655303
DALLAS, TEXAS 75265
SN54HC684, SN74HC684 8-BIT MAGNITUDE COMPARATORS
logic diagram (positive logic)
POST OFFICE 655303
DALLAS, TEXAS 75265
SN54HC684, SN74HC684 8-BIT MAGNITUDE COMPARATORS
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, -0.5 Input voltage range, (see Note -0.5 Output voltage range, (see Note -0.5 Input clamp current, VCC) Output clamp current, VCC) Continuous output current, VCC) Continuous current through Package thermal impedance, (see Note package 58°C/W package 69°C/W Storage temperature range, Tstg -65°C 150°C
Stresses beyond those listed under "absolute maximum ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated under "recommended operating conditions" implied. Exposure absolute-maximum-rated conditions extended periods affect device reliability. NOTES: input output voltage ratings exceeded input output current ratings observed. package thermal impedance calculated accordance with JESD 51-7.
recommended operating conditions (see Note
SN54HC684 Supply voltage High-level input voltage Low-level input voltage Input voltage Output voltage Input transition (rise fall) times 3.15 1.35 1000 SN74HC684 3.15 1.35 1000 UNIT
Operating free-air temperature NOTE unused inputs device must held ensure proper device operation. Refer application report, Implications Slow Floating CMOS Inputs, literature number SCBA004.
PRODUCT PREVIEW information concerns products formative design phase development. Characteristic data other specifications design goals. Texas Instruments reserves right change discontinue these products without notice.
POST OFFICE 655303
DALLAS, TEXAS 75265
SN54HC684, SN74HC684 8-BIT MAGNITUDE COMPARATORS
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS -5.2 3.98 5.48 25°C 1.998 4.499 5.999 4.30 5.80 0.002 0.001 0.001 0.17 0.15 -0.1 0.26 0.26 -100 SN54HC684 1000 -1000 SN74HC684 3.84 5.34 0.33 0.33 1000 -1000 UNIT
switching characteristics over recommended operating free-air temperature range, (unless otherwise noted) (see Figure
PARAMETER FROM (INPUT) (OUTPUT) 25°C SN54HC684 SN74HC684 UNIT
operating characteristics, 25°C
PARAMETER Power dissipation capacitance TEST CONDITIONS load UNIT
PRODUCT PREVIEW information concerns products formative design phase development. Characteristic data other specifications design goals. Texas Instruments reserves right change discontinue these products without notice.
POST OFFICE 655303
DALLAS, TEXAS 75265
SN54HC684, SN74HC684 8-BIT MAGNITUDE COMPARATORS
PARAMETER MEASUREMENT INFORMATION
From Output Under Test Test Point (see Note In-Phase Output Input tPLH tPHL Out-of-Phase Output Input tPLH tPHL
LOAD CIRCUIT
VOLTAGE WAVEFORM INPUT RISE FALL TIMES
VOLTAGE WAVEFORMS PROPAGATION DELAY OUTPUT TRANSITION TIMES
NOTES: includes probe test-fixture capacitance. Phase relationships between waveforms were chosen arbitrarily. input pulses supplied generators having following characteristics: MHz, outputs measured time with input transition measurement. tPLH tPHL same tpd.
Figure Load Circuit Voltage Waveforms
POST OFFICE 655303
DALLAS, TEXAS 75265
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Wide Operating Voltage Range High-Current Outputs Drive LSTTL Loads Po

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