Service Manuals, User Guides, Schematic Diagrams or docs for : . Electronic Components Datasheets Various datasheets 74ls132

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                                                                                                                         SN54/74LS132
QUAD 2-INPUT
SCHMITT TRIGGER NAND GATE
   The SN54 / 74LS132 contains four 2-Input NAND Gates which accept stan-
dard TTL input signals and provide standard TTL output levels. They are ca-
pable of transforming slowly changing input signals into sharply defined, jitter-                                         QUAD 2-INPUT
free output signals. Additionally, they have greater noise margin than                                             SCHMITT TRIGGER NAND GATE
conventional NAND Gates.
   Each circuit contains a 2-input Schmitt trigger followed by a Darlington level                                         LOW POWER SCHOTTKY
shifter 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 tran-
sitions. 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. As long
                                                                                                                                           CERAMIC
as one input remains at a more positive voltage than VT+ (MAX), the gate will                                                             CASE 632-08
respond to the transitions of the other input as shown in Figure 1.                                                  14
                                                                                                                          1


                  LOGIC AND CONNECTION DIAGRAM
                          DIP (TOP VIEW)
                                                                                                                                           N SUFFIX
                    VCC                                                                                                                    PLASTIC
                    14     13      12                              11    10     9      8                             14                   CASE 646-06
                                                                                                                          1




                                                                                                                                           D SUFFIX
                                                                                                                                             SOIC
                                                                                                                          14
                                                                                                                               1         CASE 751A-02
                     1     2            3                          4      5     6      7
                                                                                      GND
                                                                                                                          ORDERING INFORMATION
                                                                                                                           SN54LSXXXJ   Ceramic
                                                                                                                           SN74LSXXXN   Plastic
                                                                                                                           SN74LSXXXD   SOIC




                                                               5
                                                                        VCC = 5 V
                                                                        TA = 25

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