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CBC34803-M5C-TR5 Datasheet(PDF) 3 Page - Cymbet Corporation |
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CBC34803-M5C-TR5 Datasheet(HTML) 3 Page - Cymbet Corporation |
3 / 9 page CBC34803 EnerChip™ RTC ©2013 Cymbet Corporation • Tel: +1-763-633-1780 • www.cymbet.com DS-72-34 V.09 Page 3 of 9 Preliminary Pin Number Label Description 1 XO Crystal output 2 VCAP External capacitor connection to supply switchover current at cold temp. (optional) 3 nIRQ2 Interrupt 2 / Output 4 NC No connection 5 VSS Ground 6 VCHG 4.1V (typical) charging source - connect to VBAT and/or optional EnerChip(s) 7 VEC Positiveterminalofintegratedthinfilmbattery-connecttoonlytoVCHG via PCB trace 8 SDA I2C data input / Output 9 NC No connection 10 SCL I2C clock input 11 AF Autocalibrationfilter 12 FOUT/nIRQ Interrupt 1 / Function output 13 VDD Supply voltage; positive or negative steps in VDD can affect oscillator per- formance; recommend 100nF decoupling close to the device (see Fig. 30) 14 RESET/ Output signal indicating RTC is operating in backup power mode 15 EN Charge pump enable; activates VCHG 4.1V (typ.) charging source 16 XI Crystal input CBC34803 Input/Output Descriptions EnerChip Properties Energy capacity (typical): 5µAh Recharge time to 80%: <15 minutes Charge/discharge cycles: >5000 to 10% depth-of-discharge Operating temperature: -10°C to +70°C Storage temperature: -40°C to +125°C Minimum VDD to charge EnerChip: 2.5V Figure 4: CBC34803 Package (left: top view, looking through package; right: pad dimensions) Package Dimensions (mm) XO VCAP nIRQ2 NC FOUT/nIRQ AF SCL NC 1 2 3 4 VSS VCHG VEC SDA XI EN RESET VDD 12 11 10 9 16 15 14 13 5 6 7 8 |
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