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BK3254SS24 Datasheet(PDF) 7 Page - Beken Corporation |
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BK3254SS24 Datasheet(HTML) 7 Page - Beken Corporation |
7 / 17 page ![]() BK3254 Datasheet v 0.5 © 2011 Beken Corporation Proprietary and Confidential Page 7 of 17 15 USBP(GPIO2) USB positive or GPIO 2 16 USBN(GPIO3) USB negative or GPIO 3 17 GPIO22 GPIO 22 18 GPIO9 GPIO 9 19 GPIO8(HD_FLA) FLASH hold signal 20 GPIO7(WP_FLA) FLASH write protection 21 NC NC 22 NC NC 23 NC GND 24 VDD3IO_FLA LDO output for FLASH, 3 V by default, local 1uF decoupling cap 25 VCC4BAT Battery power input, 2.8 V ~ 5.5 V 26 VSYS3V2 LDO output 3.2 V 27 VDD12 LDO output 1.2 V; Connected to 1uF Decoupling cap 28 GPIO4(VADC) GPIO4 or ADC input 29 GPIO11 GPIO 11 30 GPIO10 GPIO 10 31 GPIO19(JTMS) GPIO 19 32 GPIO18(JTCK) GPIO 18 33 GPIO21(JTDO) GPIO 21 34 GPIO20(JTDI) GPIO 20 35 GPIO17 GPIO 17 36 GPIO16 GPIO 16 37 GPIO15 GPIO 15 38 GPIO14 GPIO 14 39 GPIO13 GPIO 13 40 GPIO12 GPIO 12 41 GPIO6 GPIO 6 42 VCC2V4 2.4 V LDO output 43 VCC3XTAL XTAL power supply, local 1uF decoupling cap 44 XO XTAL output 45 XI XTAL input 46 VCCBT Bluetooth power supply, local 1uF decoupling cap 47 GPIO5 GPIO 5 48 GPIO1 GPIO 1 |
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