The Zilog Z80182 is an enhanced, faster version of the older

Z80 The Z80 is an 8-bit microprocessor introduced by Zilog as the startup company's first product. The Z80 was conceived by Federico Faggin in late 1974 and developed by him and his 11 employees starting in early 1975. The first working samples were ...

and is part of the Z180

microprocessor A microprocessor is a computer processor where the data processing logic and control is included on a single integrated circuit, or a small number of integrated circuits. The microprocessor contains the arithmetic, logic, and control circ ...

family. It's nicknamed the ''Zilog Intelligent Peripheral Controller'' (ZIP). It has the following features: * Two ESCC (enhanced serial channel controller) channels with 32-bit CRC * Two

UART A universal asynchronous receiver-transmitter (UART ) is a computer hardware device for asynchronous serial communication in which the data format and transmission speeds are configurable. It sends data bits one by one, from the least signific ...

(serial controller interface) channels * Internal configurable address decoder * Three PIA (Programmable I/O adapter) ports * Two 16-bit

timer A timer is a specialized type of clock used for measuring specific time intervals. Timers can be categorized into two main types. The word "timer" is usually reserved for devices that counts down from a specified time interval, while devices th ...

s * One CSIO (Clocked Serial Input/output) channel * One MMU (Memory management Unit) that expands the addressing range to 20 bits * Wait state generator * Two DMA channels * Interrupt controller * Extended instructions * 16550 MIMIC interface * Crystal oscillator It's also fully static (the clock can be halted and no data in the registers will be lost) and has a low

EMI EMI Group Limited (originally an initialism for Electric and Musical Industries, also referred to as EMI Records Ltd. or simply EMI) was a British Transnational corporation, transnational Conglomerate (company), conglomerate founded in March 1 ...

option that reduces the

slew rate In electronics, slew rate is defined as the change of voltage or current, or any other electrical quantity, per unit of time. Expressed in SI units, the unit of measurement is volts/second or amperes/second, but is usually expressed in terms of m ...

of the outputs. The Z80182 can operate at 33 MHz with an external oscillator for 5 volt operation or 20 MHz using the internal oscillator for 3.3 volt operation.

Notes

References

* * * {{microcompu-stub Zilog microprocessors