EnerChip CC CBC3105

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DS-72-21 Rev E

Page 11 of 12

Preliminary

Real-Time Clock Application Circuit

The EnerChip CC as depicted in Figure 10 is a typical application circuit in a 3.3 volt system where backup and

power switchover circuitry for a real-time clock device is provided.

Figure 10: EnerChip CC Providing Backup Power for RTC with SPI Bus

CBC3105-R4C Evaluation Board

The CBC3105-R4C evaluation board as shown in the photo and schematic below is included in the CBC-EVAL-

05B EnerChip CC Evaluation Kit. This board is 16 pins in the same 24-pin DIP configuration as the EVAL-

05 CBC3150/CBC3112 eval board. This eval board is easy to use with proto-boards or sockets for design

evaluation.

Note that the Enerchip CBC3105 is shipped in a charged state and it is advised to not solder the CBC3105

evaluation board to another board as the high temperatures of a manual soldering process are outside the

CBC3105 operating specifications.

Figure 11: CBC3105-R4C Evaluation Board

Figure 12: CBC3105-R4C Eval Board Pin-out