STM8A/128-EVAL STMicroelectronics, STM8A/128-EVAL Datasheet - Page 10

• Manufacturer Part Number: STM8A/128-EVAL
• Description: 8 BITS MICROCONTR
• Manufacturer: STMicroelectronics
• Series: STM8Ar
• Type: MCUr

Specifications of STM8A/128-EVAL

• Contents: Board
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: STM8A

Hardware layout and configuration
2.1
2.2
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Power supply
The STM8A/128-EVAL evaluation board is designed to be powered by 5 V DC power supply
and to be protected by the PolyZen (auto rearmable fuse) U2 from wrong power plug-in
event. It is possible to configure the evaluation board to use any of following sources for the
power supply.
The power supply is configured by setting the related jumpers JP3 and JP2 as described in
Table
Table 1.
The LED LD5 is lit when the STM8A/128-EVAL evaluation board is powered from the 5 V
supply, and LD6 is also lit when the 3.3 V power regulator U3 is present.
Clock source
One clock source is available on the STM8A/128-EVAL evaluation board for STM8Axx:
It can be removed from the socket when the internal RC clock is used.
JP3
JP2
Jumper
5 V DC power adapter connected to CN6, the Power Jack on the board (PSU on silk
screen for power supply unit).
5 V DC power from both CN5 and CN1, the extension connector for daughterboard
(DTB for daughterboard on silkscreen).
X1, 24 MHz crystal with socket for STM8Axx microcontroller
1.
Power related jumpers
JP3 is used to select one of the two possible power supply resources.
For power supply jack(CN6) to the STM8A/128-EVAL only, JP3 is
set as shown.
This is the default setting.
For power supply from the daughterboard connectors (CN5 and
CN1) to STM8A/128-EVAL only, JP3 is set as shown.
Measures the consumption of both VDD and VDDA.
Default setting: Fitted
For power supply from power supply jack(CN6) to both
STM8A/128-EVAL and daughterboard connected on CN5 and CN1,
JP3 is set as shown (daughterboard must have not its own power
supply connected).
Doc ID 17489 Rev 1
Description
UM0944