描述
段码显示器驱动电路,两只CD4513的数据输入端A~D共用可编程序控制器的4个输入端,其中A为最低位,D为最高位。LE端是锁存使能输入端,在LE信号的上升沿将数据输入端的BCD数据锁存在片内的寄存器中,并将该数译码后显示出来,LE为低电平时,显示器的数不受数据输入信号的影响。显然,N位显示器所占用的输出点P=4+N。图9中Y004及YOO5分别接通时,输出的数据分别送到上下两片CD4513中。
KLA-Tencor AIT 1 Power Supply Module working
Pair KLA-Tencor 525227 AB AIT 2 Video Switch Working
KLA-Tencor CRS1010 Solenoid PCB 000678T working
KLA-Tencor CRS1010 A-Stop Control PCB 001002 working
KLA-Tencor CRS1010 Lens Filter Assy. 000056 working
KLA-Tencor AIT APS Tower/Center Block 0071149-001 Used
KLA-Tencor CRS1010 Filter Wheel Drv. PCB 000674 working
KLA-Tencor NEAT CRS1010 200mm Wafer Stage Controller
KLA-Tencor 2365-UI PSB1600MBX PCB 0062642-003
Pulizzi Z-Line KLA-Tencor Quantox Power Supply PC2425
KLA-Tencor CRS1010 Camera Lens Filter 002001