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BM78 Datasheet(PDF) 18 Page - Microchip Technology

Part # BM78
Description  Bluetooth짰 4.2 Dual-Mode Module
PDF  60 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

BM78 Datasheet(HTML) 18 Page - Microchip Technology

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BM78
DS60001380A-Page 18
Advance Information
 2016 Microchip Technology Inc.
2.9
Host MCU Interface over UART
Figure 2-8 illustrates an example of UART interface
with host MCU and power scheme using 3.3V to the
VDD. Battery power is applied to the BAT_IN pin. From
the LDO33_O pin, voltage can be routed to the
VDD_IO pin and external circuitry including the MCU.
This power scheme ensures that the BM78 and MCU
I/O voltages are compatible.
FIGURE 2-8:
POWER AND MCU INTERFACE EXAMPLE FOR BM78
Note 1: Ensure that VDD_IO and MCU VDD voltages are compatible.
2: The control and indication ports are configurable
Note:
The internal 3.3V LDO current source
should not exceed 50 mA (i.e maximum).



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