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기능 DTCXO Temperature Compensated Real Time Clock / Calendar Module
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603002 데이터시트, 핀배열, 회로
EM MICROELECTRONIC - MARIN SA
603002
Title:
Product Family:
Part Number:
Application Note 603002
Highly accurate, DTCXO Temperature Compensated
Real Time Clock / Calendar Module with I2C Interface
RV-3029
RV-3029
TABLE OF CONTENTS
1. OVERVIEW ........................................................................................................................................................ 4
1.1. GENERAL DESCRIPTION......................................................................................................................... 4
1.2. APPLICATIONS ......................................................................................................................................... 4
2. BLOCK DIAGRAM ............................................................................................................................................. 5
2.1. PINOUT ...................................................................................................................................................... 6
2.2. PIN DESCRIPTION .................................................................................................................................... 7
2.3. FUNCTIONAL DESCRIPTION................................................................................................................... 7
2.4. DEVICE PROTECTION DIAGRAM ........................................................................................................... 8
3. REGISTER ORGANIZATION ............................................................................................................................ 9
3.1. REGISTER OVERVIEW ............................................................................................................................. 9
3.2. CONTROL PAGE REGISTER FUNCTION.............................................................................................. 10
3.2.1. CONTROL_1 (address 00h…bits description).................................................................................. 10
3.2.2. CONTROL_INT (address 01h…bits description) .............................................................................. 10
3.2.3. CONTROL_INT FLAG (address 02h…bits description) ................................................................... 11
3.2.4. CONTROL_STATUS (address 03h…bits description) ..................................................................... 11
3.2.5. CONTROL_RESET (address 04h…bits description)........................................................................ 12
3.3. WATCH PAGE REGISTER FUNCTION .................................................................................................. 12
3.3.1. SECONDS, MINUTES, HOURS, DAYS, WEEKDAYS, MONTHS, YEARS REGISTER ................. 12
3.3.2. DATA FLOW OF TIME AND DATE FUNCTION............................................................................... 14
3.4. ALARM PAGE REGISTER FUNCTION .................................................................................................. 15
3.4.1. SECONDS, MINUTES, HOURS, DAYS, WEEKDAYS, MONTHS, YEARS ALARM REGISTER .... 15
3.5. TIMER PAGE REGISTER FUNCTION .................................................................................................... 17
3.6. TEMPERATURE PAGE REGISTER FUNCTION .................................................................................... 17
3.7. EEPROM DATA PAGE REGISTER FUNCTION..................................................................................... 17
3.8. EEPROM CONTROL PAGE REGISTER FUNCTION ............................................................................. 18
3.8.1. EEPROM CONTROL (address 30h…bits description) ..................................................................... 18
3.8.2. XTAL OFFSET (address 31h…bits description) ............................................................................... 18
3.8.3. XTAL TEMPERATUR COEFFICIENT (address 32h…bits description) ........................................... 18
3.8.4. XTAL TURNOVER TEMPERATUR COEFFICIENT T0 (address 33h…bits description)................. 19
3.9. RAM DATA PAGE REGISTER FUNCTION ............................................................................................ 19
4. DETAILED FUNCTIONAL DESCRIPTION ..................................................................................................... 20
Copyright 2014, EM Microelectronic-Marin SA
603002.doc, Version 1.0, 5-Mai-14
1
www.emmicroelectronic.com
420010-D01, 2.0




603002 pdf, 반도체, 판매, 대치품
603002
1. OVERVIEW
RTC module with built-in Tuning Fork” crystal oscillating at 32.768 kHz
Factory calibrated, all built-in Temperature Compensation circuitry
Time accuracy:
Temperature Range
25°C
0°C to + 50°C
-10°C to + 60°C
-40°C to + 85°C
-40°C to +125°C
Opt: A
+/- 3 ppm
+/- 4 ppm
+/- 5 ppm
+/- 6 ppm
+/- 8 ppm
Opt: B
+/- 3 ppm
+/- 5 ppm
+/- 10 ppm
+/- 25 ppm
+/- 30 ppm
Ultra low power consumption:
Wide clock operating voltage:
800nA typ @ VDD = 3.0V / Tamb = 25°C
1.3 5.5V
Wide interface operating voltage:
1.4 5.5V
Extended operating temperature range: -40°C to +125°C
I2C serial interface with fast mode SCL clock frequency of 400 kHz
Provides year, month, day, weekday, hours, minutes and seconds
Highly versatile alarm and timer functions
Integrated Low-Voltage Detector, Power-On Reset and Self-Recovery System
Main Power Supply to Backup Battery switchover circuitry with Trickle Charger
Programmable CLKOUT pins for peripheral devices (32.768 kHz / 1024 Hz / 32 Hz / 1 Hz)
Available in a small and compact package sizes, RoHS-compliant and 100% leadfree:
C3: 3.7 x 2.5 x 0.9 mm
1.1. GENERAL DESCRIPTION
The RV-3029 is a CMOS low power, real-time clock/calendar module with built-in Thermometer and Digital
Temperature Compensation circuitry (DTCXO). The temperature compensation circuitry is factory-calibrated and
greatly improves the time accuracy by compensating the frequency-deviation @ 25°C and the anticipated
frequency-drift over the temperature of the embedded 32.768 kHz “Tuning-Fork” crystal, even over the extended
Temperature Range -40°C to +125°C. Data is transferred serially via an I2C interface with a maximum SCL clock
frequency in fast mode of 400 kHz, the built-in word address register is incremented automatically after each
written or read data byte. Beyond standard RTC-functions like year, month, day, weekday, hours, minutes, seconds
information, the RV-3029 offers highly versatile Alarm and Timer-Interrupt function, programmable Clock-Output
and Low-Voltage Detector.
1.2. APPLICATIONS
The RV-3029 RTC module combines key functions with outstanding performance in a small ceramic package:
Factory calibrated Temperature Compensation
Extended temperature range up to +125°C
Low Power consumption
Smallest temperature compensated RTC module with embedded Xtal
These unique features make this product perfectly suitable for many applications:
Automotive: Car Radio / GPS and Tracking Systems / Dashboard / Engine Controller /
Car Mobile & Entertainment Systems / Tachometers
Metering: E-meter / Heating Counter
Outdoor: ATM & POS systems / Surveillance & Safety systems / Ticketing systems
All kind of portable and battery operated devices
Industrial and consumer electronics
White goods
Copyright 2014, EM Microelectronic-Marin SA
603002.doc, Version 1.0, 5-Mai-14
4
www.emmicroelectronic.com
420010-D01, 2.0

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603002 전자부품, 판매, 대치품
603002
2.2. PIN DESCRIPTION
Symbol
Pin
# Description
C3
VDD
2
Positive supply voltage; positive or negative steps in supply voltage may affect oscillator performance, recommend 10 nF
decoupling capacitor close to device
CLKOUT 3 Clock Output pin; CLKOUT or INT function can be selected.(Control_1; bit7; Clk/Int)
CLKOUT output push-pull / INT function open-drain requiring pull-up resistor
N.C. 8 Not Connected; internally used for test, do not connect other signals than ground
SCL 4 Serial Clock Input pin; requires pull-up resistor
SDA
5 Serial Data Input-Output pin; open-drain; requires pull-up resistor
VSS
INT
VBACKUP
N.C.
6 Ground
7 Interrupt Output pin; open-drain; active LOW
9 Backup Supply Voltage; tie to GND when not using backup supply voltage
10 Not Connected; internally used for test, do not connect other signals than ground
CLKOE
1 CLKOUT enable/disable pin; enable is active HIGH; tie to GND when not using CLKOUT
2.3. FUNCTIONAL DESCRIPTION
The RV-3029 is a highly accurate real-time clock/calendar module due to integrated temperature compensation
circuitry. The built-in Thermometer and Digital Temperature Compensation circuitry (DTCXO) provides improved
time-accuracy; achieved by measuring the temperature and calculating an expected correction value based on
precise, factory-calibrated Crystal parameters. The compensation of the frequency deviation @ 25°C and the
Crystal’s frequency-drift over the temperature range are obtained by adding or subtracting 32.768 kHz oscillator
clock-pulses. Beyond standard RTC-functions like year, month, day, weekday, hours, minutes, seconds
information, the RV-3029 offers highly versatile Alarm and Timer-Interrupt function, programmable Clock-Output
and Voltage-Low-Detector and a Main-Supply to Backup-Battery Switchover Circuitry and a 400 kHz I2C interface.
The CMOS IC contains thirty 8-bit RAM registers organized in 6 memory pages; the address counter is
automatically incremented within the same memory page. All sixteen registers are designed as addressable 8-bit
parallel registers, although, not all bits are implemented.
Memory page #00 contains of five registers (memory address 00h and 04h) used as control registers
Memory page #01 addresses 08h through 0Eh are used as counters for the clock function (seconds up to
years). The Seconds, Minutes, Hours, Days, Weekdays, Months and Years registers
are all coded in Binary-Coded-Decimal (BCD) format. When one of the RTC registers is
read, the content of all counters is frozen to prevent faulty reading of the clock/calendar
registers during a carry condition
Memory page #02 addresses 10h through 16h define the alarm condition
Memory page #03 addresses 18h and 19h are used for Timer function
Memory page #04 address 20h provides the thermometer reading value
Memory page #07 addresses 38h through 3Fh are available for user data
Additionally, the CMOS-IC contains six non-volatile 8-bit EEPROM registers organized in 2 memory pages; the
address counter is automatically incremented within the same memory page.
EEPROM page #05 addresses 28h and 29h are available for EEPROM user data
EEPROM page #06 contains of four registers (memory address 30h through 33h) used as non-volatile
control registers. These registers contain the factory programmed parameters of the
Crystal’s thermal characteristics, the frequency-deviation @ ambient temperature and
the Thermometer’s calibration values. In favour for the best time-accuracy, the factory
programmed registers (memory address 31h through 33h) shall not be changed by
the user without carefully studying its function
Copyright 2014, EM Microelectronic-Marin SA
603002.doc, Version 1.0, 5-Mai-14
7
www.emmicroelectronic.com
420010-D01, 2.0

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603002

DTCXO Temperature Compensated Real Time Clock / Calendar Module

EM MICROELECTRONIC
EM MICROELECTRONIC

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