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DS14196WM Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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DS14196WM Datasheet(HTML) 3 Page - National Semiconductor (TI) |
3 / 7 page Electrical Characteristics(Note 2) (Note 3) (Continued) Over recommended operating supply and temperature ranges unless otherwise specified Symbol Parameter Conditions Min Typ Max Units RECEIVER CHARACTERISTICS V OH High Level Output Voltage (Note 7) I OH = −0.5 mA, VIN = −3V 2.6 4.0 V I OH = −10 µA, VIN = −3V 4.0 4.9 V I OH = −0.5 mA, VIN = Open Circuit 2.6 4.0 V I OH = −10 µA, VIN = Open Circuit 4.0 4.9 V V OL Low Level Output Voltage I OL = 3.2 mA, VIN = +3V 0.2 0.4 V I OSR Short Circuit Current V OUT = 0V, VIN = 0V (Note 4) −1.7 −2.7 −4 mA Switching Characteristics (Note 3) (Note 5) (Note 6) T A = 25˚C Symbol Parameter Conditions Min Typ Max Units DRIVER CHARACTERISTICS t PHL Propagation Delay High to Low R L = 3kΩ,CL = 50 pF ( Figures 1, 2) 60 350 ns t PLH Propagation Delay Low to High 300 450 ns t r,tf Rise/Fall Time (Note 8) 40 ns RECEIVER CHARACTERISTICS t PHL Propagation Delay High to Low R L = 1.5 kΩ,CL = 15 pF (includes fixture plus probe), ( Figures 3, 4) 150 350 ns t PLH Propagation Delay Low to High 240 350 ns t r Rise Time 40 175 ns t f Fall Time 40 100 ns Note 1: Absolute Maximum Ratings are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices should be operated at these limits. The table of Electrical Characteristics specifies conditions of device operation. Note 2: Current into device pins is defined as positive. Current out of the device pins is defined as negative. All voltages are referenced to ground unless otherwise specified. For current, minimum and maximum values are specified as an absolute value and the sign is used to indicate direction. For voltage logic levels, the more positive value is designated as maximum. For example, if −6V is a maximum, the typical value −6.8V is more negative. Note 3: All typicals are given for: VCC = +5V, V + = +12V, V− = −12V, T A = +25˚C. Note 4: Only one driver output shorted at a time. Note 5: Generator characteristics for driver input: f = 64 kHz (128 kbps), tr = tf < 10 ns, VIH = 3V, VIL = 0V, duty cycle = 50%. Note 6: Generator characteristics for receiver input: f = 64 kHz (128 kbps), tr = tf = 200 ns, VIH = 3V, VIL = −3V, duty cycle = 50%. Note 7: If receiver inputs are unconnected, receiver output is a logic high. Note 8: Refer to typical curves. Driver output slew rate is measured from the +3V to the −3V level on the output waveform. Inputs not under test are connected to VCC or GND. Slew rate is determined by load capacitance. To comply with a 30 V/µs maximum slew rate, a minimum load capacitance of 390 pF is recommended. www.national.com 3 |
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