The ZiLOG Z80 CPU family of components are fourth-generation enhanced microprocessors with exceptional computational power. They offer higher system throughput and more efficient memory utilization than comparable second- and third-generation microprocessors. The speed offerings from 6 to 20 MHz suit a wide range of applications which migrate software. The internal registers contain 208 bits of read/write memory that are accessible to the programmer. These registers include two sets of six general purpose registers which may be used individually as either 8-bit registers or as 16-bit register pairs. In addition, there are two sets of accumulator and flag registers.
The Z80 CPU also contains a Stack Pointer, Program Counter, two index registers, a REFRESH register, and an INTERRUPT register. The CPU is easy to incorporate into a system since it requires only a single +5V power source. All output signals are fully decoded and timed to control standard memory or peripheral circuits; the Z80 CPU is supported by an extensive family of peripheral controllers.
Features
The Extensive Instruction Set.Contains 158 Instructions, Including the 8080A Instructions Set as a Subset.
Single 5 Volt Power Supply
The Z80 Microprocessors and Associated Family of Peripherals can be Linked by a Vectored Interrupt System. This System can be Daisy-Chained to Allow Implementation of a Priority Interrupt Scheme
Duplicate Set of Both General-Purpose and Flag Registers
Two 16-Bit Index Registers
Three Modes of Maskable Interrupts: - Mode 0 - 8080A Similar - Mode 1 - Non-Z80 Environment, Location 38H - Mode 2 - Z80 Family Peripherals, Vectored Interrupts
