PT7C4363BQAutomotive Real-time ClockFeaturesDescription • Drop-In Replacement for PT7C4363 The PT7C4363BQ serial real-time clock is an automotive low- • Supports High-ESR Crystals Up To 100kΩ power clock/calendar with a programmable square-wave • Supports alarm and timer output. • Supports I2C-Bus's high speed mode (400 kHz) • Includes time (Hour/Minute/Second) and calendar Address and data are transferred serially via a 2-wire (Year/Month/Date/Day) counter functions (BCD code) bidirectional bus. The clock/calendar provides seconds, • Low backup current: typ. 400nA at VDD=3.0V and minutes, hours, day, date, month, and year information. TA=25°C The date at the end of the month is automatical y adjusted for • Operating range: 1.3V to 5.5V months with fewer than 31 days, including corrections for leap • Extended Operating Temp: -40°C to 125°C year. The clock operates in the 24-hour format indicator. • AECQ-100 Compliant for Automotive Application • Totally Lead-Free & Ful y RoHS Compliant (Notes 1 & 2) Table 1 shows the basic functions of PT7C4363BQ. More • Halogen and Antimony Free. “Green” Device (Note 3) details are shown in section: overview of functions. • PPAP Capable (Note 4) • Packaging (Pb-free & Green): 8-Pins, SOIC (W) Table 1. Basic functions of PT7C4363BQ ItemFunctionPT7C4363BQ Source: Crystal: 32.768kHz √ 1 Oscillator Oscillator enable/disable - Oscillator fail detect √ 12-hour - Time display 24-hour √ 2 Time Century bit √ Time count chain enable/disable √ Alarm interrupt √ 3 Interrupt Timer interrupt output √ 4 Programmable square wave output (Hz) 1, 32, 1.024k, 32.768k 2-wire I2C bus √ Communicati 5 3-wire bus - on Burst mode - Write protection - 6 Control External clock test mode √ Power-on reset override √
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. 4. Automotive products are AEC-Q100 qualified and are PPAP capable. Refer to https://www.diodes.com/quality/. PT7C4363BQ www.diodes.com July 2019 Document Number DS42042 Rev 1-2 1