DS3231S#-W Maxim Integrated, DS3231S#-W Datasheet
DS3231S#-W
Specifications of DS3231S#-W
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DS3231S#-W Summary of contents
Page 1
... Digital Temp Sensor Output: ±3°C Accuracy o Register for Aging Trim o RST Output/Pushbutton Reset Debounce Input o Underwriters Laboratories (UL) Recognized CC PART DS3231S# DS3231SN# Applications #Denotes an RoHS-compliant device that may include lead (Pb) that is exempt under RoHS requirements. The lead finish is JESD97 category e3, and is compatible with both lead- based and lead-free soldering processes. A " ...
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... V MAX MIN TYP V = 3.63V 5. 3.63V 5. 3.63V 5.5V CC 2.45 2.575 - -200 25 MAX UNITS 5 0.3 0 MAX UNITS 200 μA 300 110 μA 170 575 μA 650 2.70 V 0 μA +1 μA +10 μA 100 nA Maxim Integrated ...
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... Trim Register Frequency Sensitivity per LSB Temperature Accuracy Crystal Aging ELECTRICAL CHARACTERISTICS ( 2.3V to 5.5V BAT A PARAMETER Active Battery Current Timekeeping Battery Current Temperature Conversion Current Data-Retention Current Maxim Integrated Extremely Accurate MIN SYMBOL CONDITIONS 3. 3.3V OUT CC BAT ...
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... 0.1C B 0.6 4 250 250 100 125 MIN TYP 300 0 250 MAX UNITS 400 kHz 100 μs μs μs μs 0.9 μs 0.9 ns μs 300 ns 1000 300 ns 300 μs 400 200 ms MAX UNITS μs μs 300 ms Maxim Integrated ...
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... Extremely Accurate I RST PF(MAX) V PF(MIN) t VCCF RST Maxim Integrated DS3231 2 C-Integrated RTC/TCXO/Crystal Pushbutton Reset Timing t RST Power-Switch Timing VCCR t REC 5 ...
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... BAT 2 C interface, RTC, or TCXO. 2 Data Transfer Serial Bus HD:STA t SU:STA t SU:STO . IH(MIN the SCL signal. LOW ≥ 250ns must then be met. This SU:DAT + t = 1000 + 250 = 1250ns R(MAX) SU:DAT is bypassed and RST immedi- REC of the SCL signal) Maxim Integrated ...
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... BSY = 0, SCL = SDA = V 125 100 2.0 2.5 3.0 SUPPLY CURRENT vs. TEMPERATURE 1 EN32kHz = 1, BSY = 0, CC SDA = SCL = V 0.9 0.8 0.7 0.6 -40 -15 Maxim Integrated Extremely Accurate I Typical Operating Characteristics CC RST ACTIVE 3.5 4.0 4.5 5.0 5 GND BAT TEMPERATURE (°C) DELTA TIME AND FREQUENCY vs. TEMPERATURE 20 0 CRYSTAL ...
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... SDA 8 2 C-Integrated CONTROL LOGIC/ SQUARE-WAVE BUFFER; DIVIDER 1Hz TEMPERATURE SENSOR 1Hz CLOCK AND CALENDAR DS3231 Block Diagram N INT/SQW CONTROL N ALARM, STATUS, AND CONTROL REGISTERS REGISTERS USER BUFFER (7 BYTES VOLTAGE REFERENCE; DEBOUNCE CIRCUIT; PUSHBUTTON RESET N Maxim Integrated 32kHz INT/SQW RST ...
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... The clock/cal- endar provides seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The Maxim Integrated Extremely Accurate I FUNCTION falls below V , the ...
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... Pushbutton Reset Function ), the DS3231 continues to monitor the RST line RST is lower than internal power-fail sig the RST pin is held returns to a level above V PF REC CC Real-Time Clock ), which BATT , is BATTC , is the BATTDR ) to allow the power is applied REC Maxim Integrated ...
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... The I C interface is accessible whenever either valid level microcontroller connected BAT to the DS3231 resets because of a loss of V Maxim Integrated Extremely Accurate I BIT 5 BIT 4 BIT 3 BIT 2 Seconds 10 Hour 0 ...
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... Alarm when day, hours, minutes, and seconds match ALARM RATE Alarm once per minute (00 seconds of every minute) Alarm when minutes match Alarm when hours and minutes match Alarm when date, hours, and minutes match Alarm when day, hours, and minutes match Alarms Maxim Integrated ...
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... The CONV bit should be used when monitoring the status of a user-initiated conversion. Bits 4 and 3: Rate Select (RS2 and RS1). These bits control the frequency of the square-wave output when the square wave has been enabled. The following table Maxim Integrated Extremely Accurate I BIT 5 BIT 4 CONV ...
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... BIT 5 BIT 4 Data Data Status Register (0Fh) BIT 3 BIT 2 BIT 1 EN32kHz BSY A2F Aging Offset Aging Offset (10h) BIT 3 BIT 2 BIT 1 Data Data Data BIT 0 A1F X BIT 0 Data 0 Maxim Integrated ...
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... The following bus protocol has been defined (Figure 2): • Data transfer may be initiated only when the bus is not busy. • During data transfer, the data line must remain stable whenever the clock line is high. Changes in the data Maxim Integrated Extremely Accurate I BIT 5 BIT 4 Data ...
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... MASTER TO SLAVE SLAVE TO MASTER NOTE: LAST DATA BYTE IS FOLLOWED BY A NACK. ACKNOWLEDGEMENT SIGNAL FROM RECEIVER 1 2 3–7 8 <DATA (n + 1)> <DATA ( ... XXXXXXXX A XXXXXXXX DATA TRANSFERRED ( BYTES + ACKNOWLEDGE) <DATA (n + 2)> <DATA (n + X)> XXXXXXXX A ... XXXXXXXX DATA TRANSFERRED ( BYTES + ACKNOWLEDGE) 9 ACK Maxim Integrated ...
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... DS3231 outputs an acknowledge on SDA. After the DS3231 acknowl- edges the slave address + write bit, the master transmits a word address to the DS3231. This sets the register pointer on the DS3231, with the DS3231 Maxim Integrated Extremely Accurate I <R/W> <WORD ADDRESS (n)> <SLAVE ADDRESS (n)> ...
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... RoHS status only Package drawings may show a different suffix character, but the BAT drawing pertains to the package regardless of RoHS status. 13 GND PACKAGE 12 N.C. N. N.C. 9 N.C. Chip Information Package Information PACKAGE OUTLINE TYPE CODE NO W16#H2 21-0042 LAND PATTERN NO. 90-0107 Maxim Integrated ...
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... In the Power Control section, added information about the POR state of the time and 5 4/08 date registers; in the Real-Time Clock section, added to the description of the RST function. In Figure 1, corrected the months date range for 04h from 00–31 to 01–31. Maxim Integrated DESCRIPTION = -40°C to +85° ...
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... Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed ...