Texas Instruments SN74LS688N, 8bit-Bit, Identity Comparator, Push-Pull, Inverting, 4.85 → 5.25 V, 20-Pin PDIP

Product overview and Technical data sheets
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Product Details

74LS Family Complex Function, Texas Instruments

Texas Instruments Complex Function ICs from the 74LS Low Power Schottky Logic Family includes Binary Adders, Magnitude & Identity Comparators and 4-to-7 BCD Decoder/Drivers. The 74LS Family use bipolar junction technology coupled with Schottky diode clamps to achieve operating speeds equal to the original 74TTL family but with much lower power consumption.

74LS Family

Specifications
Attribute Value
Logic Family LS
Logic Function Identity Comparator
Output Function A=B
Number of Bits 8bit
Output Type Push-Pull
Polarity Inverting
Mounting Type Through Hole
Package Type PDIP
Pin Count 20
Maximum High Level Output Current -0.4mA
Maximum Low Level Output Current 24mA
Maximum Propagation Delay Time @ Maximum CL 23 ns @ 5 V
Dimensions 24.33 x 6.35 x 4.57mm
Height 4.57mm
Minimum Operating Temperature 0 °C
Maximum Operating Supply Voltage 5.25 V
Width 6.35mm
Length 24.33mm
Propagation Delay Test Condition 45pF
Maximum Operating Temperature +70 °C
Minimum Operating Supply Voltage 4.85 V
Discontinued product