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RN4020 Datasheet(PDF) 5 Page - Microchip Technology |
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RN4020 Datasheet(HTML) 5 Page - Microchip Technology |
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5 / 28 page  2015 Microchip Technology Inc. DS50002279B-page 5 RN4020 15 WAKE_HW Hardware wake from Dormant state. Setting the WAKE_HW (pin15) high wakes the module from Dor- mant mode. During the module power up, if WAKE_HW pin is flipped high and low for three cycles (putting the WAKE_HW pin into high, low, and then high again is considered as one flip cycle) in the first five seconds, then the module performs a factory Reset. If the WAKE_SW pin is high when a factory Reset is performed, the factory Reset is a full reset. Otherwise, it is a partial reset that retains the device name, private service and scripts. Set WAKE_HW pin to low in order to lower power consumption in Deep Sleep and Dormant modes. Active-high; internal pull down 16 GND Ground Ground 17 SPI/PIO SPI/PIO for pins 10-13; active-high Input with internal pull down; selects SPI on pins 10-13 18 RTS PIO[6] Reserved for RTS if hardware flow control on UART is enabled. If the data transmission to RN4020 must be halted, assert RTS to high. RTS pin operates independently from the CTS (pin 14). • RTS (output) • PIO[6] 19 PWM4 PIO[7] Spare PIO PIO[7]; Spare PIO configurable as input or output 20 RSVD Do not connect. Factory diagnostics. No Connect 21 SDA SDA Data line of the I2C interface. The RN4020 always acts as the I2C Master. SDA 22 SCL I2C Clock SCL 23 VDD Supply voltage 1.8 to 3.6V 24 GND Ground Ground TABLE 1-1: PIN DESCRIPTION (CONTINUED) Pin Name Description Function CAUTION A full factory Reset erases scripts and sets the device name to the serialized name. For more information, refer to the SF Command in the RN4020 Bluetooth Low Energy User's Guide (DS70005191). |
Similar Part No. - RN4020 |
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Similar Description - RN4020 |
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