RV-1805-C3 Extreme Low Power RTC Module DIMENSIONS Package: Recommended Solder Pad: 3,7 0,8 0,8 0,8 0,8 0,8 0,3 0,5 1 2 3 4 5 10 9 8 7 6 3,7 Metal lid is connected to V (pin 6) SS All dimensions in mm typical APPLICATIONS DESCRIPTION IoT The RV-1805-C3 is a SMT Real-Time Clock Module that incorporates Metering an integrated CMOS circuit together with an XTAL. It operates under Industrial vacuum in a hermetically sealed ceramic package with metal lid. Health Care Wearables, Portables FEATURES Extreme low power consumption: XTAL mode, 60 nA 3 V. RC mode, 17 nA 3 V. RC autocalibration mode, 22 nA 3 V. Operating voltage range: 1.5 V to 3.6 V. Time accuracy: Factory calibrated to 2 ppm 25C. User programmable offset value. Automatic Backup Switchover and Trickle Charger function. Provides year, month, date, weekday, hours, minutes, seconds, 100th. Timer, Alarm, External event and Watchdog functions. Clock output frequencies: 32.768 kHz to 1/60 Hz. 256 bytes user RAM. 2 I C-bus interface: 400 kHz. 100% Pb-free, RoHS-compliant. Qualification according to AEC-Q200. BLOCK DIAGRAM Hundredths 00 Analog Seconds Compare Minutes 7 Hours V BACKUP Date 1 Power V Month DD Control Year 6 V Weekday SS Hundredths Alarm 08 Seconds Alarm Minutes Alarm Hours Alarm Date Alarm 4 2 SCL I C-BUS Months Alarm 5 Weekdays Alarm Interface SDA Status 0F Control1 10 Calibration Engine Control2 System Control Interrupt Mask logic Square Wave SQW Xtal Osc Divider Calibration XT 14 2 Sleep Control 17 RC Osc Divider Cap RC Timer Control Timer Timer Initial 3 Watchdog Timer CLK/ INT Oscillator Control 9 Oscillator Status 1D WDI INPUT Trickle Charge 20 OUTPUT 10 BREF Control RST CONTROL Cap RC Control 26 8 Batmode I/O PSW Analog Status 2F Output Control Ext. RAM Addr. 3F 40 Reset User RAM FF 0,9 max 2,5 0,2 0,55 0,8 1,4 0,8 3,0ELECTRICAL CHARACTERISTICS Symbol Condition Min. Typ. Max. Unit AT 25C Supply voltage V Time keeping 1.5 3.6 V DD More detailed information can be found in the Application Manual. XTAL mode, V 3 V 60 130 DD Current consumption I RC mode, V 3 V 17 25 nA DD DDO Time keeping mode RC autocal., V 3 V 22 32 DD CLKOUT frequency F Programmable 32 768 to 1/60 Hz CLKOUT Time accuracy t/t 25C 2 ppm Aging first year max. F/F 25C 3 ppm ENVIRONMENTAL Conditions Max. Dev. CHARACTERISTICS Storage temp. range 55 to +125C TA Operating temperature range 40 to +85C Shock resistance F/F 5000 g, 0.3 ms, sine 5 ppm Vibration resistance 20 g / 102000 Hz 5 ppm F/F TERMINATIONS AND Package Termination Processing PROCESSING IPC/JEDEC J-STD-020C SON-10 Au flashed pads 260C / 20 - 40 s 20 T = 25C 5C FREQUENCY TEMPERATURE 0 0 CHARACTERISTICS -20 -40 -60 2 -80 0.035*(T-T ) ppm 10% 0 -100 -120 -140 Tuning Fork Crystal -160 -60 -40 -20 0 20 40 60 80 100 T C PIN CONNECTIONS Product Date Code Pin Connection TOP VIEW 1 V Power Supply Voltage DD 10 6 2 Cap RC Capacitor RC Osci. 3 CLK/INT Clock Output/Interrupt M843A1 4 SCL Serial Clock Input 5 SDA Serial Data 1805 6 V Ground SS 7 V Backup Supply Voltage BACKUP 1 5 8 PSW Power Switch Output Part Designation 9 WDI Watchdog Input Pin 1 Index 10 RST Reset Output ORDERING INFORMATION RV - 1805 - C3 TA QC RTC module Qualification QC = Commercial Grade (Standard) Product type Temperature range Package size = -40 to +85C (Standard) TA C3 = 3.7 x 2.5 x 0.9 mm A unique part number will be generated for each product specification, i.e: 20xxxx-MG01 1 000 pcs (in 12 mm tape on 7 reel) 20xxxx-MG03 3 000 pcs (in 12 mm tape on 7 reel) All specifications subject to change without notice. Micro Crystal AG Phone +41 32 655 82 82 Muehlestrasse 14 Fax +41 32 655 82 83 CH-2540 Grenchen sales microcrystal.com Switzerland www.microcrystal.com Version 6.2/05.2020 F/F ppm