Zilog manufactured 8-bit CPUs, and is most famous for its Intel 8080-compatible Z80 series. Zilog was incorporated in California in 1974 by Federico Faggin, who left Intel after working on the 8080, and the Z80 shared many features with it.
After the Z80 Zilog introduced 16-bit and 32-bit processors, but these were not particularly successful, and the company refocused on the microcontroller market, producing both basic CPUs and application-specific integrated circuits/standard products (ASICs/ASSPs) built around a CPU core. As well as producing processors, Zilog have produced several other components. One of the most famous was the Z8530 serial communications controller as found on Sun SPARCstations and SPARCservers up to the SPARCstation 20.
The company became a subsidiary of Exxon in 1980, but the management and employees bought it back in 1989. It went public in 1991, but was acquired in 1998 by Texas Pacific Group, who, after chip prices plummeted, reorganized the company in a Chapter 11 bankruptcy in late 2001.
Zilog’s products include:
eZ80Acclaim!™ – Award-winning, 8-bit flash MCU family with enhanced 50 MHz Z80 CPU
Z8 Encore! XP® – Expand your development potential with Z8 Encore! XP® family of high performance 8-bit microcontrollers with eXtended Peripherals.
Z8 Encore!® – New 8-bit flash MCU family, extensive peripherals, with enhanced 20MHz Z8 CPU
Z8 GP™ – Z8 GP™ ZGP/ZGR323 OTP & ROM General Purpose Microcontrollers
Z8 Low Voltage – Low voltage versions of Z8 8-bit MCU family, able to operate as low as 2V
Z8 OTP – One time programmable (OTP) versions of Z8 8-bit MCU family
Z8 ROM – Broad family of ROM-based 8-bit MCUs, featuring register-based Z8 CPU operation
Z8 ROMless – ROMLess versions of Z8 8-bit MCU family
eZ80® – New 8-bit MPU, with enhanced 50MHz Z80 core and 16MB memory addressing
Z180 – Higher performance version of Z80 MPU, with 1MB memory addressing
Z80 – Widely-used 8-bit MPU, with dual-register banks for fast context switching and interrupt handling
Crimzon™ – The Crimzon™ ZLP32300 OTP MCU is the newest member of ZiLOG’s family of microcontrollers intended for use in applications requiring infrared transmission capability.
IR OTP – One time programmable (OTP) versions of IR ROM 8-bit MCU family
IR ROM – Z8 8-bit microcontrollers optimized for use in infra-red (IR) remote control applications IrDA
IrDA – Data transceivers with full Infra-Red Data Association (IrDA) specification compliance
Data Communications – Z80382 16-bit microprocessor for higher end data communications applications
Modems – Single-chip V.22bis modems with integrated controller, data pump, and Analog Front End
PCMCIA – General-purpose PCMCIA adapter chips
SCC – Discrete Serial Communication Controllers (SCC) with low power and superior noise immunity
Wireless – Z8 8-bit microcontrollers optimized for battery-operated wireless applications
Digital Signal Processors
DSP – Award-winning Digital Signal Processors (DSPs) at a cost comparable to a microcontroller
Line 21 Decoders – Family of Line 21 Vertical Blanking Interval controllers, including V-chips
TV Controllers – Low cost, character-based 8-bit On Screen Display (OSD) controllers for TVs
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