So, the next card is reaching its final state. The board is a base board offering several features if you want to build a standalone computer system.
- Battery supported RealTime Clock based on RTC1307 (controlled via I2C)
- LED Controller for 16 LEDs based on PCA9532 (controlled via I2C)
- RESET Button
- RESET signal sharpened via 74LS14 chip (Schmidt-Trigger)
- PINS for +5V, +3.4V and GND (e.g. ground for measurement)
- turn on/off switch
- Supervisor Circuits for low-power and Watchdo-Support (MAX 705)
- 8 configuration pins and 8 general I/O pins handled by the MCP23017 I2C version
Published at easyeda: https://easyeda.com/marten_7544/msk-pi80-power_copy_copy
Schrievkrom 