bc10/Keypad

bc10

Keypad †

This is the information of the keypad board, which is connected to the left expansion slot (from AMOLED side) of bc10.
This board is attached to the oppose side of the standard expansion board (which comes with power supply). To use this
board, a keypad can be added at the other side of the standard expansion board. This board has a pad, which is used for
connecting GPIO (x4) and UART1.

• Design
  • Schematic and Gerber data

    	OrCAD Version	pdf Version
    Schematic	bc10-007-0003.dsn	bc10-007-0003.pdf
    Gerber	bc10-007-0003.zip	bc10-007-0003_gerber.pdf

• Parts list

  Name	Specs	Maker	qty.	Memo
  Connector	14 5078 030 510 861+	KYOCERA ELCO	1

About the pad for extended wiring †

• On the side that the connector is attached, the pad is also connected. (This pad handles GPIO (x4) and UART1.)

  Signal Name	Registration ID	Memo
  GPIO_152	G152	C-MOS 1.8Vlevel
  GPIO_153	G153	C-MOS 1.8Vlevel
  GPIO_154	G154	C-MOS 1.8Vlevel
  GPIO_155	G155	C-MOS 1.8Vlevel
  UART1_TX	U1TX	C-MOS 1.8Vlevel
  UART1_RX	U1RX	C-MOS 1.8Vlevel
  UARR1_TX_3V	U1TX_3V	C-MOS 3.3Vlevel *1)
  UART1_RX_3V	U1RX_3V	C-MOS 3.3Vlevel *1)
  VCC_1V8	1.8V
  VCC_3V3	3.3V

• 1)To use 3.3V level wire, parts for voltage converter is required and needed to be installed, separately. List of the required parts are listed below.
  

  U1	TXS0102 (DCU)	a product of Texas Instruments, Inc. DCU package (For more info)
  R1	10kΩ	1608
  C1	0.1μF	1608
  C2	0.1μF	1608