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Z-80微处理机芯片组的制成就像从8008到8080一样,是一个大的前进。Z-80的吞吐能力是它们的2～5倍,但是,它的程序存贮器只需一半到四分之一。此机的中央处理器(CPU)有158条指令,包括8080A全部的78条,每条指令的执行时间平均是1.5微秒,采用流水线处理输入/输出和中断操作。因为采用大指令集合,这种器件和广泛使用的8080A的机器代码是软件相容的,所以,8080A的使用者不仅能很快了解和掌握Z-80,而且也较容易用它设计各种新系统。芯片组是由CPU和使用5伏电源,单相5伏时钟的外围控制电路所集成。这种金属-氧化物-半导体(MOS)CPU芯片,采用n沟耗尽型负载硅栅工艺,在179×192密耳的面积上有大约8500个晶体管,元件密度大约是133门/厘米~2。相比较,8080型的最小者—Am9080只有102门/厘米~2。Z-80的电路使用静态逻辑,这样,使用者可以在排除系统设计故障时逐步通过每个时钟周期。
The Z-80 microprocessor chipset is just as big a move as the 8008 to 8080. The throughput of the Z-80 is two to five times that of them, but it takes only half to one-fourth of its program memory. This machine has 158 CPUs, including 78 of the 8080A’s in total. Each instruction executes an average of 1.5 microseconds, using pipelined I / O and interrupts. Because of the large instruction set, which is software compatible with the widely used 8080A machine code, users of the 8080A can not only quickly understand and master the Z-80 but also design new ones with ease system. The chipset is integrated by the CPU and peripheral control circuitry using a 5-volt power supply, single-phase 5-volt clock. The metal-oxide-semiconductor (MOS) CPU chip uses an n-channel depletion-mode load silicon gate process with approximately 8,500 transistors in an area of 179 × 192 mils and a device density of approximately 133 gates / cm 2 . In contrast, the smallest 8080 - Am9080 only 102 / cm ~ 2. The Z-80’s circuit uses static logic so that users can progress through each clock cycle while troubleshooting system design.