RN52 datasheet(4/26 Pages) MICROCHIP

номер детали	RN52

подробное описание детали	Bluetooth Audio Module

PDF	26 Pages

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производитель	MICROCHIP [Microchip Technology]

домашняя страница	http://www.microchip.com

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RN52

DS70005120A-page 4

 2015 Microchip Technology Inc.

FIGURE 1-3:

PIN DIAGRAM

TABLE 1-4:

PIN DESCRIPTION(1) (SHEET 1 OF 3)

Symbol

I/O Type

Description

Directio

Defau

GND

Ground.

GPIO3

Digital

Driving this pin high during bootup will put the

module in Device Firmware Update (DFU)

mode. The device will enter DFU mode in 3

seconds. The pin should only be asserted high

before the device enters DFU mode and not

after. (USB device powers VBUS. PIO3 requires

47K to ground and 22K to USB VBUS if USB

VBUS is supplying power to the main board.)

During runtime, if the pin is driven high, the

device will reset and reboot.

Note: Device will reset within 500 ms after the IO

is driven high. A reset pulse of 100 ms is recom-

mended. If IO continues to be driven high after

reset, the device will naturally enter DFU mode.

The device will enter DFU mode in 3 seconds.

Input

Low

GPIO2

Digital

Reserved, event indicator pin. A microcontroller

can enter Command mode and poll the state

Output

High

AIO0

Bidirectional

Analog programmable input/output line

I/O

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