SN54LS688 - 8-Bit Identity/Magnitude Comparators (P=Q) with Enable

Updated : 2020-01-09 14:42:32
Description

These magnitude comparators perform comparisons of two eight-bit binary or BCD words. All types provide P = Q\ outputs and all except 'LS688 provide P > Q\ outputs as well. The 'LS682, 'LS684, 'LS686, and 'LS688 have totem-pole outputs, while the 'LS685 and 'LS687 have open-collector outputs. The 'LS682 features 20-k pullup termination resistors on the Q inputs for analog or switch data.

Products containing the "SN54LS688" keyword are: SN54LS688J
Features

  • Compares Two-8-Bit Words
  • Choice of Totem-Pole or Open-Collector Outputs
  • Hysteresis at P and Q Inputs
  • 'LS682 has 20-k Pullup Resistors on the Q Inputs
  • SN74LS686 and 'LS687 … JT and NT 24-Pin, 300-Mil Packages

Parametrics
StatusACTIVE
SubFamilyDigital comparator
Technology FamilyLS
VCC5.25
Bits8
Voltage5
F @ nom voltage35
ICC @ nom voltage65
tpd @ Nom Voltage23
RatingMilitary
Operating temperature range-55 to 125
Package GroupCDIP|20
Package size: mm2:W x L (PKG)See datasheet (CDIP)
Approx. price
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