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SN74LS540DW Datasheet(PDF) 2 Page - ON Semiconductor |
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SN74LS540DW Datasheet(HTML) 2 Page - ON Semiconductor |
2 / 3 page BLOCK DIAGRAM LS540 LS541 E1 E2 D1 D2 D3 D4 D5 D6 D7 D8 Y8 Y7 Y6 Y5 Y4 Y3 Y2 Y1 (1) (19) (2) (3) (4) (5) (6) (7) (8) (9) (11) (12) (13) (14) (15) (16) (17) (18) E1 E2 D1 D2 D3 D4 D5 D6 D7 D8 Y8 Y7 Y6 Y5 Y4 Y3 Y2 Y1 (1) (19) (2) (3) (4) (5) (6) (7) (8) (9) (11) (12) (13) (14) (15) (16) (17) (18) 5-2 FAST AND LS TTL DATA SN54/74LS540 • SN54/74LS541 INPUTS OUTPUTS E1 E2 D LS540 LS541 L L H L H H X X Z Z X H X Z Z L L L H L L = LOW Voltage Level H = HIGH Voltage Level X = Immaterial Z = High Impedance DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Sb l P Limits Ui T C di i 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 54 0.7 V Guaranteed Input LOW Voltage for VIL Input LOW Voltage 74 0.8 V pg All Inputs VIK Input Clamp Diode Voltage – 0.65 – 1.5 V VCC = MIN, IIN = – 18 mA VOH Output HIGH Voltage 54, 74 2.4 3.4 V VCC = MIN, IOH = – 3.0 mA VOH Output HIGH Voltage 54, 74 2.0 V VCC = MIN, IOH = MAX, VIL = 0.5 V VOL Output LOW Voltage 54, 74 0.25 0.4 V IOL = 12 mA VCC = VCC MIN, VIN =VIL or VIH VOL Output LOW Voltage 74 0.35 0.5 V IOL = 24 mA VIN = VIL or VIH per Truth Table VT+–VT– Hysteresis 0.2 0.4 V VCC = MIN IOZH Output Off Current HIGH 20 µA VCC = MAX, VOUT = 2.7 V IOZL Output Off Current LOW –20 µA VCC = MAX, VOUT = 0.4 V IIH Input HIGH Current 20 µA VCC = MAX, VIN = 2.7 V IIH Input HIGH Current 0.1 mA VCC = MAX, VIN = 7.0 V IIL Input LOW Current – 0.2 mA VCC = MAX, VIN = 0.4 V IOS Short Circuit Current (Note 1) –40 – 225 mA VCC = MAX I Power Supply Current Total, Output HIGH LS540 25 mA V MAX I LS541 32 mA V MAX ICC Total Output LOW LS540 45 mA VCC = MAX CC Total, Output LOW LS541 52 mA CC Total Output 3-State LS540 52 mA Total Output 3-State LS541 55 mA Note 1: Not more than one output should be shorted at a time, nor for more than 1 second. |
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