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ST26C31 Datasheet(PDF) 4 Page - STMicroelectronics |
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ST26C31 Datasheet(HTML) 4 Page - STMicroelectronics |
4 / 10 page ST26C31 4/10 ELECTRICAL CHARACTERISTICS (VCC =5V ± 10%, unless otherwise specified, See Note 1) Note 1: Unless otherwise specified, min/max limits apply across the recommended operating temperature range. All typical are given for VCC =5V and Ta = 25°C Note 2: See EIA Specification RS422 for exact test conditions. Note 3: Measured per pin input. All other input at VCC or GND. Note 4: This is the current sourced when a high output is shorted to ground. Only one output at time should be shorted. SWITCHING CHARACTERISTICS (VCC =5V ± 10%, tr =tf ≤ 6ns, See Note 1) Note 1: Unless otherwise specified, min/max limits apply across the recommended operating temperature range. All typical are given for VCC=5V and Ta = 25°C Note 2: Skewis defined as the difference in propagation delays between complementary outputs at the 50% point. Note 3: Output disable time is the delay from the control input being switched to the output transistors tuming off. The actual disable times are less than indicated due to the delay added by RC time constant of the load. Note 4: CPD determines the no load dynamic power consumption, PD =CPD V 2 CCf= ICCVCC, and the no load dynamic current consumption, PD =CPD VCCf+ ICC Symbol Parameter Test Conditions Value Unit Min. Typ. Max. VIH High Level Input Voltage 2 V VIL Low Level Input Voltage 0.8 V VOH High Level Output Voltage VIN =VIH or VIL,IOUT = -20mA 2.5 3.4 V VOL Low Level Output Voltage VIN =VIH or VIL,IOUT = +20mA 0.3 0.5 V VT Differential Output Voltage RL =100 Ω (Note 2) 2 3.1 V VT-VT Difference in Differential Output Voltage RL =100 Ω (Note 2) 0.4 V VOS Common Mode Output Voltage RL =100 Ω (Note 2) 1.8 3 V VOS- VOS Difference in Common Mode Output Voltage RL =100 Ω (Note 2) 0.4 V IIN Input Current VIN =VCC, GND, VIH or VIL ±1 µA ICC Quiescent Supply Current (Note 2) IOUT =0 µA VIN =VCC or GND 200 500 µA VIN = 2.4 or 0.5 V (Note 3) 0.8 2 mA IOZ 3-STATE Output Leakage Current VOUT =VCC or GND ENABLE = VIL ENABLE =VIH ±0.5 ±5 µA ISC Output Short Circuit Current VIN =VCC or GND (Notes 2, 4) -30 -150 mA IOFF Power Off Output Leakage Current (Note 2) VCC =0 V VOUT = 6 V 100 µA VOUT = -0.25 V -100 µA Symbol Parameter Test Conditions Value Unit Min. Typ. Max. tPLH tPHL Propagation Delay Input to Output S1 Open 2 6 11 ns Skew (Note 2) S1 Open 0.5 2 ns tTLH tTHL Differential Output Rise and Fall Times S1 Open 6 10 ns tPZH Output Enable Time S1 Closed 11 19 ns tPZL Output Enable Time S1 Closed 13 21 ns tPHZ Output Disable Time (Note 3) S1 Closed 5 9 ns tPLZ Output Disable Time (Note 3) S1 Closed 7 11 ns CPD Power Dissipation Capacitance (Note 4) 50 pF CIN Input Capacitance 6 pF |
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