Electrical Characteristics 电气特性 over recommended operating free air temperature range (unless otherwise noted) Symbol 符号 VI VOH VOL Parameter 参数 Input Clamp Voltage输入钳位电压 HIGH Level Output Voltage输出高电平电压 LOW Level输出低电平电压 Conditions 条件 VCC = 最小, II = -18mA VCC=最小,IOH=最大 VIL=最大 VCC = 最小, IOL = 最大 VIH = 最小 - 最小 - 典型 - 最大 -1.5 - UNIT 单位 V V - 2.7 - - - 3.4 0.35 - 0.5 - Output Voltage输出电压 VCC = 最小, IOL = 4mA 0.25 -0.14 0.4 - V IT+ Input Current at Positive-Going Threshold 正向阈值输入电流 Input Current at Negative-Going Threshold反向阈值输入电流 Input Current @ MAX Input Voltage输入电流@最大输入电压 HIGH Level Input Current输入高电平电流 LOW Level Input Current输入低电平电流 Short Circuit Output Current短路输出电流 Supply Current with Out puts HIGH高电平输出电源电流 Supply Current with Outputs LOW低电平输出电源电流 VCC = 5V, VI = VT+ - mA IT- VCC = 5V, VI = VT- - -0.18 - mA II VCC = 最大, VI = 7V - - 0.1 mA IIH VCC = 最大, VI = 2.7V - - 20 μA IIL VCC = 最大, VI = 0.4V - - -0.4 mA IOS VCC = 最大 (Note 4) -20 - -100 mA ICCH VCC = 最大 - 8.6 16 mA ICCL VCC = 最大 - 12 21 mA Note 3: VCC = 5V, TA = 25℃. Note 4: Not more than one output should be shorted at a time, and the duration should not exceed one second. Switching Characteristics开关特性 at VCC = 5V and TA = 25℃
Switching Characteristics开关特性 at VCC = 5V and TA = 25℃ RL = 2kΩ Symbol 符号 CL = Parameter 参数 15pF 最小 tPLH Propagation Delay Time LOW-to-HIGH Level Output低到高电平输出传递延迟时间 Propagation Delay Time HIGH-to-LOW Level Output高到低电平输出传递延迟时间
应用电路：
CL = 50pF UNIT 单位 最小 8 最大 最大 22 5 25 ns tPHL 5 22 10 33 ns