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The Zilog eZ80 is an 8-bit microprocessor designed by Zilog as an updated version of the company's first product, the highly-successful Zilog Z80. The eZ80 is binary compatible with the Z80, but operating almost three times faster at the same clock frequency .
The Zilog Z80 is an 8-bit microprocessor designed by Zilog that played an important role in the evolution of early computing. Launched in 1976, it was designed to be software-compatible with the Intel 8080, offering a compelling alternative due to its better integration and increased performance.
Zilog eZ80 @ 48 MHz 256 KB of RAM (154 KB user accessible), 4 MB of Flash ROM (3 MB user accessible) 320×240 pixels 26×10 characters (large font) 7.6 × 3.4 × 0.75: No 2015 150 Allowed Allowed TI-85: Zilog Z80 @ 6 MHz 28 KB of RAM 128×64 pixels 21×8 characters 6.875 x 3.31 x 0.938: No 1992 130 Allowed Allowed TI-86: Zilog Z80 @ 6 MHz
Name License Source model Target uses Status Platforms Apache Mynewt: Apache 2.0: open source: embedded: active: ARM Cortex-M, MIPS32, Microchip PIC32, RISC-V: BeRTOS: Modified GNU GPL: open source
On the other hand, the fast 24-bit eZ80 (introduced 2001) has been both commercially successful and won engineering awards. Unlike the Z800, Z280, and Z380, the eZ80 does not introduce many new instructions or addressing modes, in comparison to the original Z80, but instead primarily extends the 16-bit registers of the Z80 to 24 bits wide.
Zilog eZ80 – Fast 8/16/24-bit Z80 (3–4 times as cycle efficient as original Z80) with flash, SRAM, peripherals; linear addressing of 16 MB. Zilog Z16 – Fast 8/16/32-bit CPU with compact object code; 16 MB (4 GB possible) addressing range; flash, SRAM, peripherals, on chip.
The Z80 was a common choice for creators of video games during the Golden age of arcade video games, with a Z80 powering Pac-Man, [19] dual Z80s in Scramble, [20] and three in each Galaga machine. [21] It was the central processor for the ColecoVision game console (1982) and Sega's Master System (1986) and Game Gear (1990).
The Zilog Z180 is an 8-bit microprocessor designed by Zilog as a successor to the Z80. It is compatible with the large base of software written for the Z80. [ 1 ] The Z180 family adds higher performance and integrated peripheral functions like clock generator, 16-bit counters/timers, interrupt controller, wait-state generators, serial ports and ...