DS3234SN Maxim Integrated Products, DS3234SN Datasheet
DS3234SN
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DS3234SN Summary of contents
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... INT/SQW 32kHz V BAT N.C. N.C. N.C. N.C. ______________________________________________ Maxim Integrated Products Features ® ) Recognized Ordering Information PIN- TOP TEMP RANGE PACKAGE MARK 0°C to +70° DS3234S -40°C to +85° DS3234SN Pin Configuration SCLK N. DOUT 32kHz 3 18 SCLK DIN CC INT/SQW ...
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Extremely Accurate SPI Bus RTC with Integrated Crystal and SRAM ABSOLUTE MAXIMUM RATINGS Voltage Range on Any Pin Relative to Ground......-0.3V to +6.0V Operating Temperature Range (noncondensing) .............................................-40°C to +85°C Junction Temperature ......................................................+125°C Storage Temperature Range ...............................-40°C to +85°C Stresses ...
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Extremely Accurate SPI Bus RTC with ELECTRICAL CHARACTERISTICS (continued 2.0V to 5.5V active supply (see Table 1 3.3V 3.0V, and T = +25°C, unless otherwise noted. TCXO operation guaranteed from 2.3V ...
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Extremely Accurate SPI Bus RTC with Integrated Crystal and SRAM AC ELECTRICAL CHARACTERISTICS (V = 2.0V to 5.5V -40°C to +85°C, unless otherwise noted.) (Note PARAMETER SYMBOL SCLK Clock Frequency Data to SCLK Setup SCLK ...
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Extremely Accurate SPI Bus RTC with RST PF(MAX) V PF(MIN) t VCCF RST WARNING: Negative undershoots below -0.3V while the part is in battery-backed mode may cause loss of data. Note 1: Limits at -40°C are guaranteed ...
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Extremely Accurate SPI Bus RTC with Integrated Crystal and SRAM CS t CCS t CC SCLK t t CDH t DC DIN W/R DOUT NOTE: SCLK CAN BE EITHER POLARITY, SHOWN FOR CPOL = SCLK t ...
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Extremely Accurate SPI Bus RTC with (V = +3.3V +25°C, unless otherwise noted STANDBY SUPPLY CURRENT vs. SUPPLY VOLTAGE 150 INPUTS = GND RST ACTIVE 125 100 2.3 2.8 3.3 3.8 4.3 ...
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Extremely Accurate SPI Bus RTC with Integrated Crystal and SRAM PIN NAME 1 Active-Low Chip Select Input. Used to select or deselect the device. 2, 7–14 N.C. No Connection. Not connected internally. Must be connected to ground. 32kHz Push-Pull Output. ...
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Extremely Accurate SPI Bus RTC with X1 OSCILLATOR AND CAPACITOR ARRAY BAT POWER CONTROL GND CS SCLK SPI INTERFACE AND ADDRESS REGISTER SCLK DECODE DIN DOUT Detailed Description The DS3234 is a TCXO and RTC with ...
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Extremely Accurate SPI Bus RTC with Integrated Crystal and SRAM 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 clock ...
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Extremely Accurate SPI Bus RTC with When RST is active due to a power-fail condition (see Table 1), SPI operations are inhibited while the TCXO and RTC continue to operate. When RST is active due to a pushbutton event, it ...
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Extremely Accurate SPI Bus RTC with Integrated Crystal and SRAM Figure 1. Address Map for DS3234 Timekeeping Registers and SRAM ADDRESS MSB BIT 6 READ/WRITE BIT 7 00h 80h 0 01h 81h 0 02h 82h 0 12/24 03h 83h 0 ...
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Extremely Accurate SPI Bus RTC with The DS3234 contains two time-of-day/date alarms. Alarm 1 can be set by writing to registers 07h to 0Ah. Alarm 2 can be set by writing to registers 0Bh to 0Dh. The alarms can be ...
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Extremely Accurate SPI Bus RTC with Integrated Crystal and SRAM BIT 7 BIT 6 EOSC NAME: BBSQW POR POR is defined as the first application of power to the device, either V Special-Purpose Registers The DS3234 has ...
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Extremely Accurate SPI Bus RTC with BIT 7 BIT 6 NAME: OSF BB32kHz POR POR is defined as the first application of power to the device, either V Control/Status Register (0Fh/8Fh) Bit 7: Oscillator Stop Flag (OSF). ...
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Extremely Accurate SPI Bus RTC with Integrated Crystal and SRAM BIT 7 BIT 6 NAME: SIGN DATA POR BIT 7 BIT 6 NAME: SIGN DATA POR BIT 7 BIT 6 NAME: DATA DATA POR ...
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Extremely Accurate SPI Bus RTC with BIT 7 BIT 6 0 NAME POR*: 0 *POR is defined as the first application of power to the device, either V BIT 7 BIT 6 NAME BIT 7 BIT ...
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Extremely Accurate SPI Bus RTC with Integrated Crystal and SRAM Address and data bytes are shifted MSB first into the serial data input (DIN) and out of the serial data output (DOUT). Any transfer requires the address of the byte ...
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Extremely Accurate SPI Bus RTC with CS SCLK DIN WRITE ADDRESS BYTE DIN ADDRESS BYTE READ DOUT HIGH IMPEDANCE Figure 5. SPI Multiple-Byte Burst Transfer Data transfers can occur one byte at a time or in multi- ple-byte burst mode. ...
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Extremely Accurate SPI Bus RTC with Integrated Crystal and SRAM Chip Information TRANSISTOR COUNT: 48,000 SUBSTRATE CONNECTED TO GROUND PROCESS: CMOS For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE ____________________________________________________________________ Thermal ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 21 © 2008 Maxim Integrated Products is a registered trademark of Dallas Semiconductor Corporation ...