RV-3049-C2 M I C R O C R Y S TA L S W I T Z E R L A N D Real Time Clock Module with 4-wire Bus DIMENSIONS Package: Recommended Solder Pad: 1,0 1,0 1,0 1,0 5,0 ± 0,2 0,6 0,4 4,0 0,9 3,2 2,2 0,35 ± 0,2 0,9 1,0 Extremely Accurate RTC Module with embedded Xtal. 4-wire Serial-Interface (SPI-Bus) Temperature Compensation Option A: Calibrated Accuracy ± 6ppm / -40°C to +85°C Accuracy ± 8ppm / -40°C to +125°C Option B: Default Accuracy ± 25ppm / -40°C to +85°C Accuracy ± 30ppm / -40°C to +125°C Option C: not compensated Miniature Ceramic package Very low power consumption 850nA Operating Temp. -40°C to +125°C Time keeping mode down to 1.3 V Backup Battery switchover max.1,2 100% leadfree, RoHS - compliant 0,6 4,6 All dimensions in mm typical DESCRIPTION: The RV-3049-C2 is a Real-Time-Clock Module with embedded Crystal. This RTC has a 4-wire Serial-Interface (SPI-Bus) and offers temperature compensated time. The STC-Smart Temperature Compensation is calibrated in the factory and leads to a very high time-accuracy of ± 6ppm from -40°C to +85°C and ± 8ppm from -40°C to +125°C. Beside standard RTC functions, it includes a Backup-Battery Input with internal switchover function, a programmable Trickle-charge circuitry, an integrated Temperature Sensor with digital-output and offers 8 Bytes RAM and 2 Bytes EEPROM for customer's application. The calendar function tracks year and leap -year flags. The clock tracks second, minute and hour in 24-hour format. Programmable alarm setting and universal timer functions increase flexibility. For pick-and-place equipment, the parts are available in 12 mm tape: 7” (178 mm) reel with 1'000 parts 10” (254 mm) reel with 2'500 parts 13” (330 mm) reel with 5'000 parts BLOCKDIAGRAM: Pr el im in ar y 32.768 KHz CRYSTAL DIVIDER and TEMPERATURE COMPENSATION LOGIC OSC CLKOUT CLKOE OUTPUT CONTROL INT VDD VBACKUP POWER CONTROL SYSTEM CONTROL LOGIC VSS CE CLK SDI SDO SPI-BUS 4-wire INTERFACE TEMPERATURE SENSOR Control 1 Control 2 Seconds Minutes Hours Date Weekday Month Year Seconds Alarm Minutes Alarm Hour Alarm Day Alarm Weekday Alarm Month Alarm Year Alarm Timer Low Timer High Temperature °K Xtal Compensation User RAM 4 Byte User RAM Control 3 Xtal Offset T0 Temperature Temp Coefficient 00 20 23 31 Version 0.3/02.2008 ELECTRICAL CHARACTERISTICS AT 25°C: Symbol Condition VDD Time keeping 1.3 Supply voltage VDD Temp. comp. 1.8 5.5 V Current consumption IDDO VDD = 3V 850 1000 nA Progr. 32.768/1024/32/1 Hz ±10 ±20 ppm Supply voltage CLKOUT frequency ENVIRONMENTAL CHARACTERISTICS: PACKAGE, TERMINATIONS AND PROCESSING: Min. Typ. Max Unit 5.5 V Frequency Tolerance ΔF/F @ 25°C Aging first year max. ΔF/F @ 25°C ±3 ppm Time accuracy Opt. A ΔF/F -40 to +85°C ±6 ppm Time accuracy Opt. B ΔF/F -40 to +85°C ± 25 �� ppm Freq.vs.Temp. Opt. C ΔF/F OPR 20 ≤ T0 ≤ 30 –0.035 ppm/°C² (T - T0)2 ±10% ppm Conditions Storage temp. range –55 to +125°C Industrial operating temp. range –40 to +85°C Extended operating temp. range –55 to +125°C Max. Dev. Shock resistance ΔF/F 5000 g, 0.3 ms, ½ sine ± 5 ppm Vibration resistance ΔF/F ± 5 ppm 20 g / 10–2000 Hz Package-Type Termination Processing SON 10-pin For SMD mounting Au flashed pads Reflow soldering 260°C/20 s max. FREQUENCY TEMPERATURE CHARACTERISTICS: 75.0 50.0 25.0 0.0 Opt: A -25.0 Opt: B -50.0 -75.0 ∆F/F [ppm] -100.0 -125.0 -150.0 -175.0 -200.0 -225.0 -250.0 -275.0 -300.0 Opt: C -325.0 -350.0 -375.0 -50.0 -30.0 -10.0 10.0 30.0 50.0 70.0 90.0 110.0 130.0 Temperature [°C] PIN CONNECTIONS TOP VIEW: Product Marking #10 #6 3049 #1 Pin 1 Index #5 Pin 1 2 3 4 5 6 7 8 9 10 All specifications subject to change without notice. M I C R O C R Y S TA L S W I T Z E R L A N D Micro Crystal Div. of ETA SA Mühlestrasse 14 CH-2540 Grenchen Switzerland Connection VDD Power Supply Voltage CLKOUT Frequency Output CS Chip select SCL Serial Clock Input SDO Serial Data Out VSS Ground INT Interrupt Output VBACKUP Backup Supply Voltage SDI Serial Data In CLKOE CLK Output Enable 02.08 Tel. +41 32 655 82 82 Fax +41 32 655 82 83 [email protected] www.microcrystal.com Version 0.3/02.2008