RV-2251-C3 2 Real-Time Clock Module with I C-Bus DIMENSIONS Package: Recommended Solder Pad: 3,7 0,8 0,3 0,55 0,8 0,8 0,8 0,8 1 2 3 4 5 0,8 12 6 11 10 9 8 7 0,5 4,2 Metal lid is connected to V (pin 7) SS All dimensions in mm typical APPLICATIONS DESCRIPTION IoT The RV-2251-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. Automotive Health Care FEATURES Wearables, Portables Low power consumption: 210 nA 3 V. Wide operating voltage range: 0.9 V to 5.5 V. Time accuracy: 20 ppm 25C. 3.0 V Regulated Output for ML rechargeable batteries (V ). REG Level shifter for peripherals (V ). IO User programmable offset value. Automatic Backup switchover function and V monitoring. BAT Provides year, month, date, weekday, hours, minutes and seconds. Time Update and Alarm functions. Clock output frequency: 32.768 kHz. 2 I C-bus interface: 400 kHz. 100% Pb-free, RoHS-compliant. Automotive qualification according to AEC-Q200 available. BLOCK DIAGRAM VOLTAGE DETECTOR1 12 VOLTAGE VDD REGULATOR 10 VREG SW1 INTERNAL 11 POWER VOUT SUPPLY Seconds & POR 0 SW2 Minutes 9 BATTERY Hours VBAT MONITOR Weekdays 7 V Date SS Months Years XTAL SYSTEM 4 OSC Offset ECO CONTROL Alarm W Minutes LOGIC FREQUENCY DIVIDER Alarm W Hours & Alarm W Weekday OFFSET COMPENSATION Alarm D Minutes Alarm D Hours 5 VOLTAGE RAM V IO DETECTOR22 Control1 Control2 F 1 VIOL V IOL CONTROL 6 SCL 2 I C-BUS 3 LEVEL INTERFACE SDA SHIFTER 8 CLKOUT 2 nINT INT CONTROL 0,9 max. 2,5 1,25 0,2 0,55 0,5 0,8 0,7 0,7 0,8 3,0ELECTRICAL CHARACTERISTICS Symbol Condition Min. Typ. Max Unit AT 25C 2 Peripheral voltage V I C-bus active 1.8 5.5 V IO More detailed information can be found in the Application Manual. Supply voltage V Time keeping 0.9 5.5 V OUT 2 Current consumption I C-bus inactive, I 210 320 nA RTCO Time keeping mode V 3 V, ECO on BAT CLKOUT frequency F 32768 Hz CLKOUT 1) Frequency tolerance F/F 25C 20 ppm Aging first year max. F/F 25C 3 ppm 1) Tighter frequency tolerances on request. 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-12 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 Pin Connection Product Date Code TOP VIEW 1 V V Monitoring Output IOL IO 11 7 2 INT Interrupt Output 3 SDA Serial Data 4 ECO Oscillator Mode Select M825A1 5 V Peripheral Supply IO 12 6 6 SCL Serial Clock Input 2251 7 V Ground SS 8 CLKOUT 32.768 kHz Clock Output 9 V Backup Power Supply BAT 1 5 10 V Voltage Regulator Output REG Part Designation 11 V Internal Supply OUT Pin 1 Index 12 V Main Power Supply DD ORDERING INFORMATION RV - 2251 - C3 TA QC RTC module Qualification QC = Commercial Grade (Standard) Product type QA = Automotive Grade AEC-Q200 Package size Temperature range C3 = 3.7 x 2.5 x 0.9 mm TA = -40 to +85C (Standard) 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 5.1/01.2019 F/F ppm