UM1054

Demonstration board connections

Doc ID 18463 Rev 1

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Demonstration board connections

The STC3105 demonstration board can be simply connected to a battery and interfaced

with a digital controller as shown in Figure 6.

Figure 6.

Demonstration board connections with battery and microcontroller

1.

The ALM, SDA, and SCL pins are pulled up to VCC through 4.7 k

Ω resistors. In order to pull up these pins

to external I/O voltage, the onboard pull-up resistors should be removed.

IO voltage = 1.8 V (or 2.8 V, 3.3 V...)

(1)

SDA

SCL

I2C master

AM045055v1

ALM