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AS8267 Datasheet(PDF) 5 Page - ams AG |
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AS8267 Datasheet(HTML) 5 Page - ams AG |
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5 / 136 page  Data Sheet AS8267 / AS8268 Revision 1.0, 19-Jun-07 Page 5 of 136 Pin No. Pin Name AS8267 Pin Name AS8268 Type Description 11 IO2 IO2 DIO Programmable multi-purpose input/output, with selectable pull-up or pull-down resistors and selectable drive strength. 12 IO3 IO3 DIO Programmable multi-purpose input/output, with selectable pull-up or pull-down resistors and selectable drive strength. 13 VDDD VDDD S Positive supply voltage to the digital circuitry and is internally connected to pin 22. The required supply voltage is 3.3V ±10%. 14 VSSD VSSD S Ground reference for the digital circuitry. 15 IO4 IO4 DIO Programmable multi-purpose input/output, with selectable pull-up or pull-down resistors and selectable drive strength. 16 IO5 IO5 DIO Programmable multi-purpose input/output, with selectable pull-up or pull-down resistors and selectable drive strength. 17 IO6 IO6 DIO Programmable multi-purpose input/output, with selectable pull-up or pull-down resistors and selectable drive strength. 18 IO7 IO7 DIO Programmable multi-purpose input/output, with selectable pull-up or pull-down resistors and selectable drive strength. 19 IO8 IO8 DIO Programmable multi-purpose input/output, with selectable pull-up or pull-down resistors and selectable drive strength. 20 MISO MISO DIOPD Serial peripheral interface (SPI): Serial Data input in Master mode Serial Data output in Slave mode 21 VSSD VSSD S Ground reference for the digital circuitry. 22 VDDD VDDD S Positive digital supply. VDDD provides the positive supply voltage to the digital circuitry and is internally connected to pin 13. The required supply voltage is 3.3V ±10%. 23 S_N S_N DIOPU Serial peripheral interface (SPI): Chip select 24 MOSI MOSI DIOPD Serial peripheral interface (SPI): Serial Data output in Master mode Serial Data input in Slave mode 25 SC SC DIOPU Serial peripheral interface (SPI): Serial clock 26 n.c. IO9 DIO Programmable multi-purpose input/output, with selectable pull-up or pull-down resistors and selectable drive strength. 27 n.c. IO10 DIO Programmable multi-purpose input/output, with selectable pull-up or pull-down resistors and selectable drive strength. 28 n.c. IO11 DIO Programmable multi-purpose input/output, with selectable pull-up or pull-down resistors and selectable drive strength. 29 TXD TXD DO Universal Asynchronous Receiver/Transmitter (UART1) serial transmit data output. 30 RXD RXD DIPU Universal Asynchronous Receiver/Transmitter (UART1) serial receive data input. 31 VDD_BAT VDD_BAT S Battery backup supply voltage input for the real time clock (RTC). 32 XIN XIN AI A 3.0 to 4.0MHz crystal may be connected across XIN and XOUT. Alternatively, an external clock signal may be applied to XIN. 33 XOUT XOUT AO See XIN above, for the connection of a crystal. When an external clock is applied to XIN, XOUT is not connected. 34 RES_N RES_N System reset active low. 35 n.c. n.c. Not connected |
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