每个器件都有一个八位CMOS移位寄存器和CMOS控制电路，八个CMOS数据锁存，八个双极电流吸收达林顿输出驱动器。
Each device has an eight-bit CMOS shift register and CMOS control circuitry, eight CMOS data latches, and eight bipolar current-sinking Darlington output drivers.
一个八位的指令寄存器也只能确定256种不同的操作以及对于这些操作的修改。
An 8-bit instruction register can only specify 256 different operations and variations on operations.
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