S-35720C02I-K8T2U Ablic

S-35710 Series WAKE-UP TIMER IC www.ablic.com PROGRAMMABLE WAKE-UP TIMER IC ABLIC Inc., 2019-2020 Rev.1.1 00 The wake-up timer IC allows for intermittent system operation by periodically waking up the system. The S-35710 Series compares the timer value and the value written to the internal register, and outputs a wake-up signal (interrupt signal) when the values match each other. The timer of the S-35710 Series is a 24-bit binary-up counter. The internal register data can be set freely by users via a 2-wire serial interface. Consequently, the time before the occurrence of a wake-up signal (interrupt signal) can be set freely. Features Wake-up function (Alarm interrupt function): Settable on the second time scale from 1 second to 194 days (Approximately half a year) Low current consumption: 0.2 A typ. (Quartz crystal: C = 6.0 pF, V = 3.0 V, Ta = +25C) L DD Wide range of operation voltage: 1.8 V to 5.5 V 2 2-wire (I C-bus) CPU interface Built-in 32.768 kHz crystal oscillation circuit Operation temperature range: Ta = 40C to +85C Lead-free (Sn 100%), halogen-free Applications IoT communications device Monitoring device Security device Battery system Energy harvesting system Package TMSOP-8 1 WAKE-UP TIMER IC PROGRAMMABLE WAKE-UP TIMER IC S-35710 Series Rev.1.1 00 Block Diagram Pull-up RST Chattering elimination XIN Oscillation circuit circuit XOUT Internal reset signal Divider, pin INT INT controller Timing generator Wake-up time register Comparator Timer (24- bit) Power-on VDD Time register detection circuit Constant SDA voltage circuit Serial interface VSS SCL Figure 1 2