S-35740 A Series CONVENIENCE TIMER AUTOMOTIVE, 125C OPERATION, www.ablic.com 2-WIRE INTERVAL TIMER ABLIC Inc., 2016-2019 Rev.2.0 00 The convenience timer is a CMOS timer IC which operates with low current consumption, and is suitable for the time management of the relative time. The S-35740 Series outputs the fixed-cycle interrupt signal. The frequency and duty ratio of the fixed-cycle interrupt signal can be set freely by users via a 2-wire serial interface. The S-35740 Series has a 24-bit timer. For example, users can obtain the cumulative energization time of the system since the timer performs a count-up action every second. Caution This product can be used in vehicle equipment and in-vehicle equipment. Before using the product in the purpose, contact to ABLIC Inc. is indispensable. Features Fixed-cycle interrupt signal output function: Settable frequency and duty ratio, with an output control pin Low current consumption: 0.2 A typ. (Quartz crystal: C = 6.0 pF, V = 3.0 V, ENBL pin =, 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 +125C Lead-free (Sn 100%), halogen-free *1 AEC-Q100 qualified *1. Contact our sales office for details. Application Intermittent operation of various systems Regular status monitoring of various systems Package TMSOP-8 1 CONVENIENCE TIMER AUTOMOTIVE, 125C OPERATION, 2-WIRE INTERVAL TIMER S-35740 A Series Rev.2.0 00 Block Diagram ENBL XIN Oscillation circuit XOUT Divider, INT pin Timing generator INT controller Timer (24-bit) Time register Fixed-cycle interrupt signal setting register Power-on VDD detection circuit Constant SDA voltage circuit Serial interface VSS SCL Figure 1 2