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CBC34123-M5C-TR1 Fiches technique(PDF) 3 Page - Cymbet Corporation |
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CBC34123-M5C-TR1 Fiches technique(HTML) 3 Page - Cymbet Corporation |
3 / 14 page CBC34123 EnerChip™ RTC ©2013-2015 Cymbet Corporation • Tel: +1-763-633-1780 • www.cymbet.com DS-72-31 V.13 Page 3 of 14 Preliminary Pin Number Label Description 1 OSCO Oscillator output; high-impedance node; minimize wire length between quartz and package 2 TEST Test pin; not user accessible; connect to VSS or leave floating (internally pulled down) 3 INT/ Interrupt output (open-drain; active LOW) 4 CE Chip enable input (active HIGH) with internal pull down 5 VSS Ground 6 VCHG 4.1V (typical) charging source - connect to VEC and/or optional EnerChip(s) for extended backup time 7 VEC Positive terminal of integrated thin film battery - connect only to VCHG via PCB trace 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 Serial data input; may float when CE is inactive 10 SCL Serial clock input; may float when CE is inactive 11 CLKOE CLKOUT enable or disable pin; enable is active HIGH; connect to VSS for low power operation 12 CLKOUT Clock output (open-drain) 13 VDD Supply voltage; positive or negative steps in VDD can affect oscillator perfor- mance; recommend 100nF decoupling close to the device 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 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: -30°C to +70°C Storage temperature: -40°C to +125°C Minimum VDD to charge EnerChip: 2.5V Package Dimensions (mm) |
Numéro de pièce similaire - CBC34123-M5C-TR1 |
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Description similaire - CBC34123-M5C-TR1 |
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