eZ80190 Product Brief0 pages

eZ80® Microprocessors

eZ80190 Product Brief
PB005207-1103

Product Block Diagram

• 3.3 V ± 0.3 V supply voltage with 5 V tolerant
inputs

eZ80190 MPU
8 KB
SRAM

MACC with 1 KB
Dual-Port SRAM

6 PRT
4 CS +
WSG

• 100-pin LQFP package

2 DMA

32-Bit
GPIO

ZDI

Features
The eZ80190 microprocessor is a member of
ZiLOG’s eZ80® product family. It offers the following features:
• Single-cycle instruction fetch, high-performance
50 MHz eZ80® CPU core
• 8 KB high-speed data SRAM
• 16 x 16-bit Multiply and 40-bit Accumulate with
1 KB dual-port SRAM
• 32 bits of General-Purpose I/O
• Six Counter/Timers with prescalers
• Watch-Dog Timer
• Four Chip Selects with individual Wait State
generators
• 2-channel DMA controller
• 2 Universal ZiLOG Interface (UZI) channels
(I2C, SPI, UART) with built-in Baud Rate Generator
• Fixed-priority vectored interrupts (32 external,
11 internal)
• On-chip oscillator

• Operating Temperature:
– Standard Temperature Range: 0ºC to +70ºC

WDT
2 UZI

• Up to 50 MHz clock speed

– Extended Temperature Range: –40ºC to
+105ºC
• ZiLOG Debug Interface (ZDI)

General Description
The eZ80190 device is a high-speed, optimized
pipeline architecture microprocessor, operating at
50 MHz. It is the first in a line of new eZ80®-based
standard products targeted toward embedded Internet applications.
The eZ80® CPU is one of the fastest 8-bit CPUs
available today, executing code four times faster
than a standard Z80 operating at the same clock
speed. In addition, the eZ80190 device includes a
high-performance Multiply-Accumulator, ideal for
signal processing.
The eZ80® CPU can operate in Z80-compatible
(64 KB) mode, or full 24-bit (16 MB) addressing
mode. Considering both the increased clock speed
and processor efficiency, the eZ80® CPU’s processing power rivals the performance of 16-bit
microprocessors.

eZ80® CPU Core
The eZ80® CPU core is an 8-bit microprocessor
that performs in either a 16- or 24-bit addressing
mode.
The eZ80® CPU improves on the world-famous
Z80 architecture. Like the Z80, it features dual
bank registers for fast context switching.

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