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SN74LS109A Datasheet(PDF) 2 Page - ON Semiconductor |
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SN74LS109A Datasheet(HTML) 2 Page - ON Semiconductor |
2 / 4 page SN74LS109A http://onsemi.com 2 LOGIC DIAGRAM SET (SD) CLEAR (CD) 5(11) 1(15) CLOCK 4(12) J 2(14) K 3(13) Q 6(10) Q 7(9) LOGIC SYMBOL VCC = PIN 16 GND = PIN 8 511 2 4 3 6 7 1 14 12 13 10 9 15 J Q CP K Q SD CD J Q CP K Q SD CD DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol Parameter Min Typ Max Unit Test Conditions VIH Input HIGH Voltage 2.0 V Guaranteed Input HIGH Voltage for All Inputs VIL Input LOW Voltage 0.8 V Guaranteed Input LOW Voltage for All Inputs VIK Input Clamp Diode Voltage – 0.65 – 1.5 V VCC = MIN, IIN = – 18 mA VOH Output HIGH Voltage 2.7 3.5 V VCC = MIN, IOH = MAX, VIN = VIH or VIL per Truth Table VO Output LOW Voltage 0.25 0.4 V IOL = 4.0 mA VCC = VCC MIN, VIN =VIL or VIH VOL Output LOW Voltage 0.35 0.5 V IOL = 8.0 mA VIN = VIL or VIH per Truth Table IIH Input HIGH Current J, K, Clock Set, Clear 20 40 µA VCC = MAX, VIN = 2.7 V IH J, K, Clock Set, Clear 0.1 0.2 mA VCC = MAX, VIN = 7.0 V IIL Input LOW Current J, K, Clock Set, Clear – 0.4 – 0.8 mA VCC = MAX, VIN = 0.4 V IOS Output Short Circuit Current (Note 1) –20 – 100 mA VCC = MAX ICC Power Supply Current 8.0 mA VCC = MAX Note 1: Not more than one output should be shorted at a time, nor for more than 1 second. |
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