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Z-Berry is the smallest* Z80 based computer ever built.
Original Z80 CPU, modern RAM and ROM with 74xxx discrete logic ICs.
* The smallest computer with original Z84C00 chip, not Zilog microcontrollers nor other Z80 derivatives.
Features:
Z80 CPU running at 10MHz (20MHz possible)
32kB ROM
512kB RAM
microSD card storage
1 output full 8 bit-port
1 input full 8-bit port
3 independent input pins
4 independent output pins
serial interface (57 600 Bd)
I2C bus
SPI bus
PS/2 keyboard connector
beeper
software driven LED
reset button
connector with almost full Z80 bus
5V powered via micro-USB connector
pluggable daughter board with real-time clock or OLED display
total 17 IC chips (including 3V3 regulator)
two layers PCB
credit card sized (85x56mm)
fits Raspberry Pi cases (but only a few of them fits perfectly)
firmware with SD card support
More info on request.
Read review (for English and other languages use translator)
Z-Berry boards flew to
* Poland
* Czech Republic
* Thailand
* U. S. A.
* U. K.
* France
* Serbia
* Russia
* Ukraine
* The Netherlands
and few pieces are in Slovakia
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