Service Manuals, User Guides, Schematic Diagrams or docs for : . Electronic Components Datasheets Various datasheets 74ls13

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                                                                                                 SN54/74LS13
SCHMITT TRIGGERS                                                                                 SN54/74LS14
DUAL GATE/HEX INVERTER
   The SN54LS / 74LS13 and SN54LS / 74LS14 contain logic gates / inverters
which accept standard TTL input signals and provide standard TTL output
levels. They are capable of transforming slowly changing input signals into                    SCHMITT TRIGGERS
sharply defined, jitter-free output signals. Additionally, they have greater noise          DUAL GATE/ HEX INVERTER
margin than conventional inverters.
   Each circuit contains a Schmitt trigger followed by a Darlington level shifter                LOW POWER SCHOTTKY
and a phase splitter driving a TTL totem pole output. The Schmitt trigger uses
positive feedback to effectively speed-up slow input transitions, and provide
different input threshold voltages for positive and negative-going transitions.
This hysteresis between the positive-going and negative-going input
thresholds (typically 800 mV) is determined internally by resistor ratios and is
                                                                                                                 J SUFFIX
essentially insensitive to temperature and supply voltage variations.                                            CERAMIC
                                                                                                                CASE 632-08
                                                                                            14
                  LOGIC AND CONNECTION DIAGRAMS                                                  1

                                 SN54 / 74LS13
                    VCC
                     14    13    12     11   10     9     8
                                                                                                                 N SUFFIX
                                                                                                                 PLASTIC
                                                                                            14                  CASE 646-06
                                                                                                 1




                     1     2      3     4     5     6     7                                                       D SUFFIX
                                                                                                                    SOIC
                                                         GND                                     14
                                                                                                      1         CASE 751A-02

                                 SN54 / 74LS14
                    VCC
                     14    13    12     11   10     9     8                                      ORDERING INFORMATION
                                                                                                  SN54LSXXJ   Ceramic
                                                                                                  SN74LSXXN   Plastic
                                                                                                  SN74LSXXD   SOIC




                     1     2      3     4     5     6     7
                                                         GND


GUARANTEED OPERATING RANGES
  Symbol                              Parameter                                      Min              Typ     Max        Unit
 VCC          Supply Voltage                                                 54      4.5              5.0     5.5         V
                                                                             74      4.75             5.0     5.25
 TA           Operating Ambient Temperature Range                            54      

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