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N74F132D
Quad 2-input NAND Schmitt trigger
Product specification
IC15 Data Handbook
1991 Jun 26
Philips Semiconductors Product specification
74F132Quad 2-input NAND Schmitt trigger
DESCRIPTIONThe 74F132 contains four 2-input NAND gates which accept
standard TTL input signals and provide standard TTL output levels.
They are capable of transforming slowly changing input signals into
sharply defined, jitter-free output signals. In addition, they have
greater noise margin than conventional NAND gates. Each circuit
contains a 2-input Schmitt trigger followed by a Darlington level
shifter and a phase splitter driving a TTL totem-pole output. The
Scmitt 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 threshold (typically 800mV)
is determined by resistor ratios and is essentially insensitive to
temperature and supply voltage variations. As long as three inputs
remain at a more positive voltage than VT+MAX, the gate will
respond in the transition of the other input as shown in Waveform 1.
PIN CONFIGURATION
ORDERING INFORMATION
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
NOTE: One (1.0) FAST unit load is defined as: 20μA in the High state and 0.6mA in the Low state.
LOGIC SYMBOL
IEC/IEEE SYMBOL
Philips Semiconductors Product specification
74F132Quad 2-input NAND Schmitt trigger
LOGIC DIAGRAM
FUNCTION TABLE
NOTES:= High voltage level= Low voltage level
ABSOLUTE MAXIMUM RATINGS(Operation beyond the limits set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free-air temperature range.)
RECOMMENDED OPERATING CONDITIONS
Philips Semiconductors Product specification
74F132Quad 2-input NAND Schmitt trigger
DC ELECTRICAL CHARACTERISTICS(Over recommended operating free-air temperature range unless otherwise noted.)
NOTES: For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type. All typical values are at VCC = 5V, Tamb = 25°C. Not more than one output should be shorted at a time. For testing IOS, the use of high-speed test apparatus and/or sample-and-hold
techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting
of a High output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any
sequence of parameter tests, IOS tests should be performed last.
Philips Semiconductors Product specification
74F132Quad 2-input NAND Schmitt trigger
AC ELECTRICAL CHARACTERISTICS
AC WAVEFORMSFor all waveforms, VM = 1.5V.
Waveform 1. For Inverting Outputs
TEST CIRCUIT AND WAVEFORMS
Philips Semiconductors Product specification
74F132Quad 2-input NAND Schmitt trigger
DIP14: plastic dual in-line package; 14 leads (300 mil) SOT27-1
