EFM8UB2 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

EFM8UB2

The EFM8UB2, part of the Universal Bee family of MCUs, is a multi-purpose line of 8-bit microcontrollers with USB feature set.

Silicon Laboratories 

EFM8UB2 Data Sheet

Typical Connection Diagrams

5.3 Voltage Reference (VREF)

Figure 5.4 Connection Diagram for Internal Voltage Reference on page 20 shows a typical connection diagram for the voltage refer-

ence (VREF) pin of the EFM8UB2 devices when using the internal voltage reference. When using an external voltage reference, con-

sult the external reference data sheet for connection recommendations.

EFM8UB2 Device

2.42 V (out)

0.1 µF capacitor required,

additional 4.7 µF capacitor

optional for internal

voltage reference

VREF

Voltage

Reference

GND

Figure 5.4. Connection Diagram for Internal Voltage Reference

5.4 Other Connections

Other components or connections may be required to meet the system-level requirements. Application Note AN203: "8-bit MCU Printed

Circuit Board Design Notes" contains detailed information on these connections. Application Notes can be accessed on the Silicon

Labs website (www.silabs.com/8bit-appnotes).

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Rev. 1.2 | 20

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