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Figure 7 ZLAN Pin
Table 1 Pin Description
To connect 3.3V power, main power supply
4,15,23,36,37,
46,56,66,75
1.8V input. When in single-power mode, connect
VCC18O pin because ZLAN1003 has a built-in 3.3 to 1.8
voltage regulator. VCC18O is 1.8v output, and VCC18
can be supplied by VCC18O; When dual power mode,
connect the external 1.8v power supply.
Regulator power input in internal chip. To connect 3.3V
power, is the input of regulator output. When no use the
internal regulator, use the external 1.8V supply, connect
the pin to external VCC18.
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