24-Pin Flex Connector

FH12A-24S-0.5SH(55) Digikey part HFK124CT-ND
With a flat flex cable, it is possible to bring those functions from the 24-pin flex connector on to a custom board on the 80-pin side of the verdex pro com in order to reduce the thickness of the multi-board "sandwich".

With a flat flex cable, it is possible to bring those functions from the 24-pin flex connector on to a custom board on the 80-pin side of the verdex pro com in order to reduce the thickness of the multi-board "sandwich".

The 24-pin flex connector addresses several issues:

  1. being able to get a console while the computer-on-module is otherwise in use without the physical limitations of the tweener.
  2.  USB Host.
  3. Battery for RTC.
  4. Daughtercards that need a flex connector. 

 

Digikey sells a connector and cable that fits the 24 pin connector:

  • flex connector - HFK124CT-ND
  • flex cable - HFF-24U-03-ND

 

The part Gumstix uses on the COM is FH12A-24S-0.5SH(55) from Hirose. You can find a footprint of this connector for pcb/gEDA here (CON_FPC-50P-24C-1R-24N__Hirose_FH12-24S-0.5SH). There are many possible lengths and configurations of the interconnecting flex cables; also, you have many choices of connectors to use on your own board.


Ribbon cable: Flat Flex Jumper

Pitch: 0.5 mm (0.020")

Contacts: 24

Pin
GPIO
·Signal
1
GPIO(2)
·SYS_EN
·2 ·GPIO(12) ·BT_NRESET
·3 ·GPIO(43) ·BT_TXD
·4 ·GPIO(42) ·BT_RXD
·5 GPIO(44) ·BT_CTS
·6 ·GPIO(45) ·BT_RTS
·7 ·GPIO(9) ·CLK_32
·8 · ·GND
·9 ·GPIO(38) ·SSPTXD3
·10 ·GPIO(41) · SSPRXD3_OTG_ID
·11 ·GPIO(35) · SSPSFRM3
·12 ·GPIO(40) ·SSPSCLK3
·13 ·GPIO(94) ·
·14 ·GPIO(118) I2C_SDA
·15 ·GPIO(117) ·I2C_SCL
·16 ·GPIO(0) ·
·17 · USBH_P1
·18 · USBH_N1
·19 ·GPIO(89) ·USBH_PEN1
·20 ·GPIO(88) ·USBH_PWR1
·21 · ·V_BACKUP_BATT
·22 ·GPIO(47) · IR_TXD
·23 ·GPIO(46) ·IR_RXD
·24 · ·V_BATT