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DA14581 Datasheet(PDF) 6 Page - Dialog Semiconductor |
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DA14581 Datasheet(HTML) 6 Page - Dialog Semiconductor |
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6 / 152 page  Datasheet Revision 3.0 18-Dec-2015 CFR0011-120-00-FM Rev 5 6 of 152 © 2015 Dialog Semiconductor DA14581 Low Power Bluetooth Smart SoC with optimized boot time FINAL SPI_DO DO OUTPUT. SPI Data output. Mapped on Px ports SPI_EN DI INPUT. SPI Clock enable. Mapped on Px ports I2C bus interface SDA DIO/DIOD INPUT/OUTPUT. I2C bus Data with open drain port. Mapped on Px ports SCL DIO/DIOD INPUT/OUTPUT. I2C bus Clock with open drain port. In open drain mode, SCL is monitored to support bit stretching by a slave. Mapped on Px ports. UART interface UTX DO OUTPUT. UART transmit data. Mapped on Px ports URX DI INPUT. UART receive data. Mapped on Px ports URTS DO OUTPUT. UART Request to Send. Mapped on Px ports UCTS DI INPUT. UART Clear to Send. Mapped on Px ports UTX2 DO OUTPUT. UART 2 transmit data. Mapped on Px ports URX2 DI INPUT. UART 2 receive data. Mapped on Px ports URTS2 DO OUTPUT. UART 2 Request to Send. Mapped on Px ports UCTS2 DI INPUT. UART 2 Clear to Send. Mapped on Px ports Analog interface ADC[0] AI INPUT. Analog to Digital Converter input 0. Mapped on P0[0] ADC[1] AI INPUT. Analog to Digital Converter input 1. Mapped on P0[1] ADC[2] AI INPUT. Analog to Digital Converter input 2. Mapped on P0[2] ADC[3] AI INPUT. Analog to Digital Converter input 3. Mapped on P0[3] Radio transceiver RFIOp AIO RF input/output. Impedance 50 RFIOm AIO RF ground Miscellaneous RST DI INPUT. Reset signal (active high). Must be connected to GND if not used. VBAT_RF AIO Connect to VBAT3V on the PCB VDCDC_RF AIO Connect to VDCDC on the PCB VPP AI INPUT. This pin is used while OTP programming and testing. OTP programming: VPP = 6.7 V ± 0.1 V OTP Normal operation: leave VPP floating Power supply VBAT3V AIO INPUT/OUTPUT. Battery connection. Used for a single coin bat- tery (3 V). If an alkaline or a NiMH battery (1.5 V) is attached to pin VBAT1V, this is the second output of the DC-DC converter. VBAT1V AI INPUT. Battery connection. Used for an alkaline or a NiMh bat- tery (1.5 V). If a single coin battery (3 V) is attached to pin VBAT3V,this pin must be connected to GND. SWITCH AIO INPUT/OUTPUT. Connection for the external DC-DC converter inductor. VDCDC AO Output of the DC-DC converter GND AIO - - Ground Table 1: Pin description PIN NAME TYPE Drive (mA) Reset state (Note ) DESCRIPTION |
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