74LS00功能：四2 输入与非门

真值表：Inputs输入输出ABYLLHLHHHLHHHL

                      图1 74LS00 引脚图

Absolute Maximum Ratings绝对最大额定值Supply Voltage 电源电压7VInput Voltage输入电压7VOperating Free Air Temperature Range自由空气温度范围0℃ to +70℃Storage Temperature Range储存温度范围-65℃ to +150℃

Recommended Operating Conditions建议操作条件Symbol 符号Parameter 参数最小典型最大UNIT 单位VCCSupply Voltage 电源电压4.7555.25VVIHHigh Level Input Voltage输入高电平电压2--VVILLOW Level Input Voltage 输入低电平电压--0.8VIOHHIGH Level Output Current高电平输出电流---0.4mAIOLLOW Level Output Current低电平输出电流--8mATAFree Air Operating Temperature工作温度0-70℃

DC SPECIFICATIONS直流电气规格：Symbol 符号Parameter 参数Conditions 条件最小典型最大UNIT 单位VIInput Clamp Voltage输入钳位电压VCC = 最小, II = -18 mA---1.5VVOHHIGH Level Output Voltage输出高电平电压VCC=最小,IOH=最大,VIL=最大2.73.4-VVOLLOW LevelOutput Voltage输出低电平电压VCC=最小,IOL=最大,VIH=最小-0.350.5VIOL = 4 mA, VCC = 最小-0.250.4IIInput Current @ MAX Input Voltage输入电流@最大输入电压VCC = 最大, VI = 7V--0.1mAIIHHIGH Level Input Current输入高电平电流VCC = 最大, VI = 2.7V--20μAIILLOW Level Input Current低电平输入电流VCC = 最大, VI = 0.4V---0.36mAIOSShort Circuit Output Current短路输出电流VCC = 最大 (Note 3)-20--100mAICCHSupply Current with Outputs HIGH高电平输出电源电流VCC = 最大-0.81.6mAICCLSupply Current with Outputs LOW低电平输出电源电流VCC = 最大-2.44.4mA

交流电气特性：Symbol 符号Parameter 参数CL = 15pFCL = 50pFUNIT 单位最小最大最小最大tPLHPropagation Delay Time LOW-to-HIGH Level Output低到高电平输出传递延迟时间310415nstPHLPropagation Delay Time 传递延迟时间310415ns

应用电路：

                             图2 逻辑探针电路

                                         图3 计算机接口电路       

                       图4自动电子开关电路

                                 图5  逻辑电平数字信号电路图