DS1388Z-33 Maxim Integrated Products, DS1388Z-33 Datasheet
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DS1388Z-33
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DS1388Z-33 Summary of contents
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... Integrated Trickle-Charge Capability for Backup Supply ♦ Three Operating Voltages: 5.0V, 3.3V, and 3.0V ♦ Low Timekeeping Voltage Down to 1.3V ♦ -40°C to +85°C Temperature Range ♦ UL Recognized returns to CC PART DS1388Z-5+ Applications DS1388Z-33+ DS1388Z-3+ + Denotes a lead(Pb)-free/RoHS-compliant package RST 6 ...
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... Lead Temperature (soldering, 10s) .................................+260° (Note 1) ......40°C/W Soldering Temperature (reflow) .......................................+260°C JC CONDITIONS DS1388Z-5 V (Note 3) DS1388Z-33 CC DS1388Z-3 V (Note (Note (Note 3) DS1388Z-5 V (Note 3) DS1388Z-33 PF DS1388Z-3 CONDITIONS R1 (Notes (Note 6) R3 (Note (Note 8) LORST OLDOUT MIN TYP MAX UNITS 4.5 5 5.5 2 ...
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... V OLSIR CC OL 1.3V < V < 1.8V 0 DS1388Z-5 I (Note 9) DS1388Z-33 CCER DS1388Z-3 DS1388Z-5 I (Note 9) DS1388Z-33 CCEW DS1388Z-3 DS1388Z-5 I (Note 10) DS1388Z-33 CCS DS1388Z +25°C (guaranteed by design -40°C to +85°C (guaranteed by A design) CONDITIONS (Note 11) BACKUP (Note 11) _____________________________________________________________________ MIN TYP MAX 3.0 3.0 CC 250 ...
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I C RTC/Supervisor with Trickle Charger and 512 Bytes EEPROM AC ELECTRICAL CHARACTERISTICS ( -40°C to +85°C, unless otherwise noted.) (Note 2) CC CC(MIN) CC(MAX) A PARAMETER SYMBOL SCL Clock Frequency Bus ...
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I C RTC/Supervisor with Trickle Charger POWER-UP/POWER-DOWN CHARACTERISTICS (T = -40°C to +85°C) (Note 2) (Figures PARAMETER V Detect to Recognize Inputs CC (V Rising Fall Time PF(MAX) PF(MIN) V ...
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I C RTC/Supervisor with Trickle Charger and 512 Bytes EEPROM WARNING: Under no circumstances are negative undershoots, of any amplitude, allowed when device is in write protection. Note 2: Limits at -40°C are guaranteed by design and are not ...
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I C RTC/Supervisor with Trickle Charger (V = +3.3V +25°C, unless otherwise noted SUPPLY CURRENT VOLTAGE BACKUP vs. V BACKUP 500 450 400 350 300 250 1.3 1.7 2.1 2.5 ...
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I C RTC/Supervisor with Trickle Charger and 512 Bytes EEPROM PIN NAME Connections for a Standard 32.768kHz Quartz Crystal. The internal oscillator circuitry is designed for 1 X1 operation with a crystal having a specified load capacitance (C oscillator ...
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I C RTC/Supervisor with Trickle Charger Detailed Description 2 The DS1388 I C RTC, supervisor, and EEPROM is a multifunction device that provides a clock/calendar, programmable watchdog timer, power-supply monitor with reset, and 512 bytes of EEPROM. The clock ...
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I C RTC/Supervisor with Trickle Charger and 512 Bytes EEPROM LOCAL GROUND PLANE (LAYER 2) NOTE: AVOID ROUTING SIGNAL LINES IN THE CROSSHATCHED AREA (UPPER LEFT QUADRANT) OF THE PACKAGE UNLESS THERE IS A GROUND PLANE BETWEEN THE SIGNAL ...
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I C RTC/Supervisor with Trickle Charger ADDRESS BIT 7 BIT 6 BLK WORD 0h 00h Tenth Seconds 0h 01h 0 10 Seconds 0h 02h 0 10 Minutes 0h 03h 0 12/24 0h 04h 05h 0 0 ...
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I C RTC/Supervisor with Trickle Charger and 512 Bytes EEPROM Watchdog Alarm Counter The contents of the watchdog alarm counter, which is a separate two-byte BCD down counter, are accessed in the address range 08h–09h in block 0h. It ...
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I C RTC/Supervisor with Trickle Charger BIT 7 BIT 6 BIT 5 EOSC 0 Control Register (00Ch) Bit 7: Enable Oscillator (EOSC). When set to logic 0, the oscillator is started. When set to logic 1, the oscillator is ...
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I C RTC/Supervisor with Trickle Charger and 512 Bytes EEPROM TRICKLE-CHARGE REGISTER (00Ah) BIT 6 BIT 5 BIT 4 BIT 7 TCS3 TCS2 TCS1 TCS0 SELECT NOTE: ONLY 1010b ENABLES CHARGER V CC Figure 5. Programmable ...
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I C RTC/Supervisor with Trickle Charger Each data transfer is initiated with a START condition and terminated with a STOP condition. The number of data bytes transferred between the START and the STOP conditions is not limited, and is ...
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I C RTC/Supervisor with Trickle Charger and 512 Bytes EEPROM Device Addressing The slave address byte is the first byte received follow- ing the START condition from the master device. The slave address byte consists of a 4-bit control ...
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I C RTC/Supervisor with Trickle Charger Acknowledge Polling Since the DS1388 does not acknowledge during an EEPROM write cycle, acknowledge polling can be used to determine when the cycle is complete (this feature can be used to maximize bus ...
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I C RTC/Supervisor with Trickle Charger and 512 Bytes EEPROM <SLAVE ADDRESS> <R/W> <DATA (n)> S 1101BBB 1 A XXXXXXXX B - BLOCK SELECT MASTER TO SLAVE S - START A - ACKNOWLEDGE (ACK STOP A - ...
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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 ____________________ 19 © 2010 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc ...