SN54/74LS132 QUAD 2-INPUT SCHMITT TRIGGER NAND GATE The SN54 / 74LS132 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, jitterfree output signals. Additionally, 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 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 essentially insensitive to temperature and supply voltage variations. As long as one input remains at a more positive voltage than VT+ (MAX), the gate will respond to the transitions of the other input as shown in Figure 1. QUAD 2-INPUT SCHMITT TRIGGER NAND GATE LOW POWER SCHOTTKY J SUFFIX CERAMIC CASE 632-08 14 1 LOGIC AND CONNECTION DIAGRAM DIP (TOP VIEW) N SUFFIX PLASTIC CASE 646-06 14 1 14 1 ORDERING INFORMATION SN54LSXXXJ SN74LSXXXN SN74LSXXXD D SUFFIX SOIC CASE 751A-02 ° Figure 1. VIN versus VOUT Transfer Function FAST AND LS TTL DATA 5-212 Ceramic Plastic SOIC SN54/74LS132 GUARANTEED OPERATING RANGES Symbol Parameter Min Typ Max Unit VCC Supply Voltage 54 74 4.5 4.75 5.0 5.0 5.5 5.25 V TA Operating Ambient Temperature Range 54 74 – 55 0 25 25 125 70 °C IOH Output Current — High 54, 74 – 0.4 mA IOL Output Current — Low 54 74 4.0 8.0 mA DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol Min Parameter Typ Max Unit Test Conditions VT+ Positive-Going Threshold Voltage 1.5 2.0 V VCC = 5.0 V VT– Negative-Going Threshold Voltage 0.6 1.1 V VCC = 5.0 V VT + – VT– Hysteresis 0.4 V VCC = 5.0 V VIK Input Clamp Diode Voltage V VCC = MIN, IIN = – 18 mA V VCC = MIN, IOH = – 400 µA, VIN = VIL 0.8 – 0.65 54 2.5 3.4 74 2.7 3.4 – 1.5 VOH Output HIGH Voltage VOL Output LOW Voltage IT+ Input Current at Positive-Going Threshold – 0.14 mA VCC = 5.0 V, VIN = VT+ IT– Input Current at Negative-Going Threshold – 0.18 mA VCC = 5.0 V, VIN = VT– IIH Input HIGH Current IIL Input LOW Current IOS Output Short Circuit Current (Note 1) ICC 54, 74 0.25 0.4 V VCC = MIN, IOL = 4.0 mA, VIN = 2.0 V 74 0.35 0.5 V VCC = MIN, IOL = 8.0 mA, VIN = 2.0 V – 20 20 µA VCC = MAX, VIN = 2.7 V 0.1 mA VCC = MAX, VIN = 7.0 V – 0.4 mA VCC = MAX, VIN = 0.4 V –100 mA VCC = MAX, VOUT = 0 V Power Supply Current Total, Output HIGH 5.9 11 mA VCC = MAX, VIN = 0 V Total, Output LOW 8.2 14 mA VCC = MAX, VIN = 4.5 V Max Unit Test Conditions VCC = 5.0 V CL = 15 pF Note 1: Not more than one output should be shorted at a time, nor for more than 1 second. AC CHARACTERISTICS (TA = 25°C) Limits Symbol Parameter Min Typ tPLH Turn-Off Delay, Input to Output 22 ns tPHL Turn-On Delay, Input to Output 22 ns Figure 2. AC Waveforms FAST AND LS TTL DATA 5-213 SN54/74LS132 ° !!$"! ∆ $ "&!" $ " $ " ∆ $" $ " " !$"$"! " $ % !#& $" $"! Figure 3. Threshold Voltage and Hysteresis versus Power Supply Voltage $ !!$"! ∆ $ "&!" " " !$"$"! $ " $ " ° ° ∆ $" ° ° " " " "# ° Figure 4. Threshold Voltage and Hysteresis versus Temperature FAST AND LS TTL DATA 5-214 ° Case 751A-02 D Suffix 14-Pin Plastic SO-14 "! !! ( ( ! " " ! " # %# (" ! "# !# -A- 8 P -B1 ! #! " #! ! * ! !" $ !" M J F R X 45° K D " ! ! " * C G " 7 & 14 "#! ! ! ! ° ° ° ° ) ) ) ) Case 632-08 J Suffix 14-Pin Ceramic Dual In-Line -A- "! ! " ! & 14 8 " ! " " -B1 ! 7 * " -T- L G J " ! & # * !" $ !" " M N D ! " * K F $ " $ " " C $ & ! ! ! ! ° ! ° ° ° ) ) ) ) Case 646-06 N Suffix 14-Pin Plastic "! 14 " B 1 A ! ( ! " # # F L C J N K M FAST AND LS TTL DATA 5-215 ! " * !" $ !" D ! $ ! H #! " " ! 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Literature Distribution Centers: USA: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. EUROPE: Motorola Ltd.; European Literature Centre; 88 Tanners Drive, Blakelands, Milton Keynes, MK14 5BP, England. JAPAN: Nippon Motorola Ltd.; 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan. ASIA PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Center, No. 2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong. ◊ FAST AND LS TTL DATA 5-216