RV-1805-C3 Extreme Low Power RTC Module DIMENSIONS Package: Recommended Solder Pad: 3,70 0,8 0,8 0,8 3 4 5 10 9 8 7 6 1,4 0,8 3,0 2 0,5 2,50 1 0,8 0,8 0,3 0,6 0,8 max.0,9 0,1 3,70 100% leadfree, RoHS - compliant Extreme Low Current consumption XTAL-Mode 60nA RC-Mode 17nA RC Autocalibrated Mode 22nA Factory calibrated Time accuracy typ. ±2.0ppm @ 25°C Miniature SMT ceramic package with integrated Quartz Crystal for best Noise & EMI Immunity Automatic Battery Switchover, Trickle Charger, Power Management & Power Switch Function Programmable CLKOUT frequencies I2C Bus Interface (fast mode 400kHz) Time keeping mode down to 1.5 V Programmable Alarm, Timer and INT 512 Bytes of User RAM All dimensions in mm typical DESCRIPTION: This RTC IC has been specially designed for ultimate low current consumption of typically 60 nA @ VDD 3.0V for 32.768 kHz XTAL mode. Additionally, there is an RC-Mode consuming only 17nA and an autocalibrated RC-mode consuming 22nA which permits to operate this RTC module several hours at Backup Supply Voltage using low-cost MLCC. The very small SMT ceramic-package combines the 32.768 kHz crystal unit with the CMOS-based oscillator and real-time-clock IC. The calender function track year, month, date, and day-of-the-week. The factory calibrated clock achieves a time accuracy of typ. ±2.0 ppm @ 25°C and tracks hundredths of second, second, minute and hour in AM/PM or 24-hour format. Additional features include Alarm, Timer and Interrupt functions, Watchdog Timer, Power Management with Power-Switch, Trickle Charger and Automatic Switchover to backup supply voltage. For pick-and-place equipment, the parts are available in 12 mm tape: 7” (178 mm) reel with 1'000 or 3'000 parts 13” (330 mm) reel with 10'000 parts BLOCK DIAGRAM: Analog Compare VBACKUP VDD VSS SCL SDA 7 1 Power Control 6 4 5 I2C-BUS Interface Calibration Engine Cap_RC 2 Xtal Osc Divider RC Osc Divider 3 CLK/ INT WDI RST PSW 9 10 INPUT OUTPUT CONTROL 8 Reset System Control logic Hundredths Seconds Minutes Hours Date Month Year Weekday Hundredths Alarm Seconds Alarm Minutes Alarm Hours Alarm Date Alarm Months Alarm Weekdays Alarm Status Control1 Control2 Interrupt Mask SQW Calibration XT Sleep Control Timer Control Timer Timer Initial Watchdog Timer Oscillator Control Oscillator Status Trickle Charge BREF Control Cap_RC Control Batmode I/O Analog Status Output Control Ext. RAM Addr. User RAM 00 08 0F 10 14 17 1D 20 26 2F 3F 40 FF ELECTRICAL CHARACTERISTICS AT 25°C: Symbol Condition Supply voltage VDD Time keeping 1.5 Supply voltage VDD Startup Voltage 1.6 Current consumption Time Keeping Mode IDD Current consumption I2C fSCL = 400 kHz ICOM Time accuracy t/t CLKOUT frequency TERMINATIONS AND PROCESSING: 3.6 V 3.6 V 32 kHz XTAL VDD 3 V 60 80 nA RC-Mode VDD 3 V 17 25 nA RC-AUTOCAL VDD 3 V 22 32 nA pull-up 2.2k VDD 3.0 V 6 μA pull-up 2.2k VDD 1.7 V 1.5 μA @ 25°C ±2.0 ppm Programmable 32768...to...1/60 Hz ±100 ppm Frequency tolerance F/F 32768Hz @25°C Aging first year max. F/F @ 25°C Frequency vs. temp. F/FO 20 ≤ T0 ≤ 30 ±3 ENVIRONMENTAL CHARACTERISTICS: Min. Typ. Max Unit –0.035 ppm/ °C² (T ppm )2 - T0 ±10% Conditions Storage temp. range –55 to +125°C TA Operating temperature range –40 to +85°C ppm Max. Dev. Shock resistance F/F 5000 g, 0.3 ms, ½ sine +/-5 ppm Vibration resistance F/F 20 g / 10–2000 Hz +/-5 ppm Package-Type Termination Processing SON 10-pin For SMD mounting Au plated pads Reflow soldering 260°C / 20 s max. CURRENT CONSUMPTION vs. 80 TA = 25°C POWER SUPPLY VOLTAGE: 70 XTAL Oscillator Mode 60 IDD [nA] 50 40 30 RC Autocalibration Mode 20 10 RC Oscillator Mode 0 1.5 2.0 2.5 3.0 3.5 VDD [V] PIN CONNECTIONS TOP VIEW: Product Marking #10 #6 1805 #5 #1 Pin 1 Index Pin Connection 1 VDD 2 Cap_RC Capacitor RC-Oscillator 3 CLK/INT Clock Output / Interrupt 4 SCL Serial Clock Input 5 SDA Serial Data 6 VSS Ground 7 VBACKUP Backup Supply Voltage 8 PSW Power Switch Output Power Supply Voltage 9 WDI Watchdog Input 10 RST Reset Output All specifications subject to change without notice. Micro Crystal AG Mühlestrasse 14 CH-2540 Grenchen Switzerland Tel. +41 32 655 82 82 Fax +41 32 655 82 83 [email protected] www.microcrystal.com Version 1.2/01.2015