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CBC-EVAL-12 Scheda tecnica(PDF) 3 Page - Cymbet Corporation |
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CBC-EVAL-12 Scheda tecnica(HTML) 3 Page - Cymbet Corporation |
3 / 9 page CBC34123 EnerChip™ RTC ©2012 Cymbet Corporation • Tel: +1-763-633-1780 • www.cymbet.com DS-72-31 V.08 Page 3 of 9 Preliminary Pin Number Label Description 1 OSCO Oscillator output; high-impedance node; minimize wire length between quartz and package 2 TEST Testpin;notuseraccessible;connecttoVSSorleavefloating(internally pulled down) 3 INT/ Interruptoutput(open-drain;activeLOW) 4 CE Chipenableinput(activeHIGH)withinternalpulldown 5 VSS Ground 6 VCHG 4.1V(typical)chargingsource-connecttoVBATand/oroptionalEnerChip(s) 7 VEC Positiveterminalofintegratedthinfilmbattery-connecttoVCHGandnoth- ing else 8 SDO Serial data output, push-pull; high-impedance when not driving; can be con- nected to SDI for single wire data line 9 SDI Serialdatainput;mayfloatwhenCEisinactive 10 SCL Serialclockinput;mayfloatwhenCEisinactive 11 CLKOE CLKOUTenableordisablepin;enableisactiveHIGH;connecttoVSSforlow power operation 12 CLKOUT Clockoutput(open-drain) 13 VDD Supply voltage; positive or negative steps in VDD can affect oscillator perfor- mance;recommend100nFdecouplingclosetothedevice(seeFig.30) 14 RESET/ Output signal indicating RTC is operating in backup power mode 15 EN Chargepumpenable;activatesVCHG4.1V(typ.)chargingsource 16 OSCI Oscillator input; high-impedance node; minimize wire length between quartz and package CBC34123 Input/Output Descriptions Figure 4: CBC34123 Package (left: top view, looking through package; right: pad dimensions) EnerChip Properties Energy capacity (typical): 5µAh Recharge time to 80%: 10 minutes Charge/discharge cycles: >5000 to 10% depth-of-discharge Operating temperature: -20°C to +70°C Storage temperature: -40°C to +125°C Minimum VDD to charge EnerChip: 2.5V Package Dimensions (mm) |
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