S-35770 A Series CONVENIENCE TIMER AUTOMOTIVE, 125C OPERATION, www.ablic.com 2-WIRE COUNTER ABLIC Inc., 2015-2019 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-35770 Series counts the number of clocks input from an external device. The counter of the S-35770 Series is a 24-bit binary-up counter. The counter data can be read via a 2-wire serial interface. 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 External clock signal count function: Countable from 0 to 16,777,215, with output pin for counter loop flag Low current consumption: 0.01 A typ. (V = 3.0 V, Ta = +25C, out of communication (CLKIN pin = 0 V)) DD Wide range of operation voltage: 1.5 V to 5.5 V 2 2-wire (I C-bus) CPU interface 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 Various pulse counters Package TMSOP-8 1 CONVENIENCE TIMER AUTOMOTIVE, 125C OPERATION, 2-WIRE COUNTER S-35770 A Series Rev.2.0 00 Block Diagram Counter CLKIN (24-bit) LOOP Count register N.C. (24-bit) Free register (24-bit) SDA VDD Serial interface Power-on SCL detection circuit Pull-up VSS RST Internal reset signal Figure 1 2