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SN54LS123 Datasheet(PDF) 3 Page - Motorola, Inc |
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SN54LS123 Datasheet(HTML) 3 Page - Motorola, Inc |
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3 / 10 page  5-199 FAST AND LS TTL DATA SN54/74LS122 • SN54/74LS123 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 Rext External Timing Resistance 54 74 5.0 5.0 180 260 k Ω Cext External Capacitance 54, 74 No Restriction Rext / Cext Wiring Capacitance at Rext / Cext Terminal 54, 74 50 pF WAVEFORMS EXTENDING PULSE WIDTH OVERRIDING THE OUTPUT PULSE B INPUT Q OUTPUT B INPUT CLEAR INPUT CLEAR PULSE Q OUTPUT OUTPUT WITHOUT CLEAR PULSE RETRIGGER PULSE (See Application Data) OUTPUT WITHOUT RETRIGGER tW |
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