QDR使用的就是HSTL电平标准 JEDEC定义了四种驱动模式:Class I~IV,其区别仅在于输出电流的不同: • Class I:IOH≥8mA,IOL≥-8mA;并行终端负载 • Class II:IOH≥16mA,IOL≥-16mA;串行终端负载 • Class III:IOH≥8mA,IOL≥-24mA;并行终端负载 • Class IV:IOH≥8mA,IOL≥-48mA;并行终端负载 6...
If i am force by situation to source 0.8V into VCCIO while configuring the IO buffer/pins to HSTL-12 Class 1 standard, which particular electrical parameter that may shift? will the Vth change resulting in worst duty cycle distortion? will the IO buffer wel...
QDR使用的就是HSTL电平标准 JEDEC定义了四种驱动模式:Class I~IV,其区别仅在于输出电流的不同: • Class I:IOH≥8mA,IOL≥-8mA;并行终端负载 • Class II:IOH≥16mA,IOL≥-16mA;串行终端负载 • Class III:IOH≥8mA,IOL≥-24mA;并行终端负载 • Class IV:IOH≥8mA,IOL≥-48mA;并行终端负载 6...
• Class II:IOH≥16mA,IOL≥-16mA;串行终端负载 • Class III:IOH≥8mA,IOL≥-24mA;并行终端负载 • Class IV:IOH≥8mA,IOL≥-48mA;并行终端负载 6、POD12电平 POD和SSTL的最大区别在于接收端的终端电压(POD为VDDQ,SSTL为VDDQ/2)。POD可以降低寄生引脚电容和I/O终端功耗,并且即使在VDD电压降低的...
• Class II:IOH≥16mA,IOL≥-16mA;串行终端负载 • Class III:IOH≥8mA,IOL≥-24mA;并行终端负载 • Class IV:IOH≥8mA,IOL≥-48mA;并行终端负载 6、POD12电平 POD和SSTL的最大区别在于接收端的终端电压(POD为VDDQ,SSTL为VDDQ/2)。POD可以降低寄生引脚电容和I/O终端功耗,并且即使在VDD电压降低的...
If i am force by situation to source 0.8V into VCCIO while configuring the IO buffer/pins to HSTL-12 Class 1 standard, which particular electrical parameter that may shift? will the Vth change resulting in worst duty cycle distortion? will the...