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RV-3149-C3

RV-3149-C3
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Real Time Clock Module with SPI-Bus DIMENSIONS Package: Time Deviation @ +25°C ± 0.26 s/day ± 0°C to +50°C ± 0.35 s/day ± -10°C to +60°C ± 0.44 s/day ± -40°C to +85°C ± 0.52 s/day ± -40°C to +125°C ± 0.70 s/day ± 100% leadfree, RoHS - compliant Extremely Accurate RTC Module with embedded Xtal. SPI Interface Temperature Compensation Automotive qualified, according to AEC-Q200 Rev. C DESCRIPTION: The RV-3149-C3 is an ultra miniature Real-Time-Clock Module with embedded Crystal. This RTC has an SPI Bus (4-wire SerialInterface) 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 7” (178 mm) reel with 3'000 parts 32.768 kHz Xtal DIVIDER and TEMPERATURE COMPENSATION LOGIC OSC CLKOUT CLKOE INT VDD VBACKUP VSS OUTPUT CONTROL SYSTEM CONTROL LOGIC SPI-BUS 4-wire Serial Interface TEMPERATURE SENSOR On / Off Ctrl IRQ Ctrl Control 3 Control 4 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 User EEPROM 2 Bytes EE Control 1 Xtal Deviation Xtal Temp-Coef Xtal T0 Temp

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ENVIRONMENTAL CHARACTERISTICS: PACKAGE, TERMINATIONS AND PROCESSING: FREQUENCY TEMPERATURE CHARACTERISTICS: Micro Crystal AG Muhlestrasse 14 CH-2540 Grenchen Switzerland Pin Connection 1 CLKOE CLK Output Enable 4 SCL Serial Clock Input 5 SDO Serial Data Output 9 VBAckuP Backup Supply Voltage 10 SDI Serial Data Input All specifications subject to change without notice.

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