74ls13.pdf part of datasheets 74ls13 74ls13.pdf, . Electronic Components Datasheets Various datasheets 74ls13.pdf text manual preview

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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