SiM3U156-B-GQ 参数 Datasheet PDF下载

SiM3U1xx

SiM3U1xx Device

VBUS

VREGn

USB 5 V (in)

1 uF and 0.1 uF bypass

capacitors required for

each power pin placed

as close to the pins as

possible.

3.3 V (out)

VREGIN

VIOHD

VDD

VIO

VSS

VSSHD

Figure 2.3. Connection Diagram with Voltage Regulator Used and USB Connected (Bus-Powered)

regulator used and USB is connected (self-powered). The VBUS signal is used to detect when USB is connected

to a host device.

USB 5 V

(sense)

3.6-5.5 V (in)

VBUS

SiM3U1xx Device

VREGn

1 uF and 0.1 uF bypass

capacitors required for

each power pin placed

as close to the pins as

possible.

3.3 V (out)

VREGIN

VIOHD

VDD

VIO

VSS

VSSHD

Figure 2.4. Connection Diagram with Voltage Regulator Used and USB Connected (Self-Powered)

regulator used, USB is connected (bus-powered), and the VIO and VIOHD pins are sourced from separate

supplies.

Preliminary Rev. 0.8

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