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SSD45N Datasheet(PDF) 13 Page - Laird Tech Smart Technology |
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SSD45N Datasheet(HTML) 13 Page - Laird Tech Smart Technology |
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13 / 30 page  SSD45N Datasheet Embedded Wireless Solutions Support Center: http://ews-support.lairdtech.com www.lairdtech.com/wireless 13 © Copyright 2016 Laird. All Rights Reserved Americas: +1-800-492-2320 Europe: +44-1628-858-940 Hong Kong: +852 2923 0610 Pin # Pin Name I/O Default State Ref. Description If Unused 25 SDIO_CMD I/O Pull-H VDD_IO SDIO command 26 SDIO_DATA_2 I/O Pull-H VDD_IO SDIO data pin bit 2 27 SDIO_DATA_3 I/O Pull-H VDD_IO SDIO data pin bit 3 28 GND - - - Ground Must be connected to GND 29 VCC3_3 - - - 3.3 V module power 30 GND - - - Ground Must be connected to GND 31 VDD3_3 - - - 3.3 V module power 32 VDD3_3 - - - 3.3 V module power 33 VDD_IO - - - I/O bus voltage configuration; Either 3.3 V or 1.8 V 34 GND - - - Ground Must be connected to GND 35 CLK_32K I Optional External 32kHz clock input 36 GND - - - Ground Must be connected to GND 37 BT_CLK_OUT O Reference clock output to to BT chip No Connect 38 GND Ground Must be connected to GND 39 BT_RX_FRAME I Optional software GPIO 40 BT_ACTIVE I Hi-Z VDD_IO Asserted for BT TX/RX No Connect 41 BT_PRIORITY I Hi-Z VDD_IO Priority of BT transmission and direction (TX or RX) No Connect 42 BT_FREQ I BT FREQUENCY signal from BT chip No Connect 43 WL_LED_ACTIVE O Low Decision of coexistence logic for BT frame. A logic high indicates BT to stop transmission. A logic low allows BT to continue with TX/RX. No Connect 44 BT_CLK_REQ I Clock request signal from BT chip Must be connected to GND 45 GND - - - Ground Must be connected to GND 46 CLK_REQ_OUT O - - CLK_REQ signal indicating when a reference clock is needed. 47 VDD1_8 - - - 1.8V power supply 48 VDD1_8 - - - 1.8V power supply 49 DVDD_SOC1 - - - GPIO 50 CHIP_PWD_L I Pull-H VDD_IO Input signal to power down the module. Active low See Note Regarding CHIP_PWD_L. 51 HMODE0 I Select the host interface SDIO: HM0=High; HM1=high GSPI: HM0=Low HM1=High 52 HMODE1 I |
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