HT1382_1105 HOLTEK [Holtek Semiconductor Inc], HT1382_1105 Datasheet
HT1382_1105
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HT1382_1105 Summary of contents
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HT1382 2 I C/3-Wire Real Time Clock Features Real Time Clock/Calendar Functions Includes: Sec, Minutes, Hours, Day, Date, Month, and year in BCD format Clock operating voltage: 2.0V~5.5V Supply voltage V =2.7V~5.5V DD Automatic leap year correction, valid until year ...
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Block Diagram VDD V COMP VBAT X1 Crystal Oscillator 3-wire SCL/SCLK Interface SDA/I/O IFS VSS 2 Note: IFS pin is used for selecting I C interface or 3-wire interface interface is ...
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HT1382 2 I C/3-Wire Real Time Clock Pad Assignment * The IC substrate should be connected to VSS in the PCB layout artwork. Pad Coordinates Pad No 520.005 2 520.005 3 520.005 4 520.005 5 520.005 Pad Description ...
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Approximate Internal Connections Absolute Maximum Ratings Supply Voltage ...............................................................................................V Input Voltage .................................................................................................V Storage Temperature ................................................................................................. 125 C Operating Temperature................................................................................................ Note: These are stress ratings only. Stresses exceeding the range specified under Absolute ...
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HT1382 2 I C/3-Wire Real Time Clock D.C. Characteristics Symbol Parameter V Supply Voltage DD V Battery Supply Voltage BAT I Standby Current STB I Battery Supply Current BAT Supply Current I DD1 (Low Power Mode) I Supply Current DD2 ...
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I C Interface Symbol Parameter f Clock frequency SCL t Clock High Time HIGH t Clock Low Time LOW t SDA and SCL Rise Time r t SDA and SCL Fall Time f t START Condition Hold Time HD:STA ...
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HT1382 2 I C/3-Wire Real Time Clock Symbol Parameter Clock Setup CC t Clock to CE Hold CCH t CE Inactive Time CWH I/O High Impedance CDZ Timing Diagrams Power-Down Timing ...
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Interface Read Data Transfer Write Data Transfer Crystal Specifications Symbol Parameter f Nominal Frequency O ESR Series Resistance C Load Capacitance L Note strongly recommended to use a crystal with load capacitance 12.5pF. 2. The oscillator ...
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HT1382 2 I C/3-Wire Real Time Clock Functional Description The HT1382 is a low power real time clock device which provides full date and time functions. Communication with the device is provided through two integral serial interfaces, I device version ...
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Clock Compensation The device includes a digital trimming method for clock error correction due to temperature variations of the crystal oscillator. This can be implemented as manufacturing calibration or user active calibration. The crystal accuracy to temperature characteristic is similar ...
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HT1382 2 I C/3-Wire Real Time Clock Register Description The device includes 16 registers which are used to control functions such as the RTC, Status, Alarm, Frequency output etc. There are also five bytes of EEPROM which contain the clock ...
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Real Time Clock Register The RTC register stores the Year, Day, Month, Date, Hours, Minutes and, Second data in BCD format. 12/24 Hour Mode Bit D7 of the hour register is defined as the 12-hour or 24-hours mode select bit. ...
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HT1382 2 I C/3-Wire Real Time Clock EEPROM Busy Status Bit - EB This bit is set to 1 when a write operation to the EEPROM has not completed. When this bit is set reading data from ...
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Alarm Enable Bit - AE This bit enables/disables the alarm function. When the AE bit is set the alarm function is enabled. When the AE bit is cleared the alarm function is disabled. Digital ...
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HT1382 2 I C/3-Wire Real Time Clock Interrupt Mode Enable Bit - IME This bit enables/disables the interrupt mode of the alarm function. When the IME bit is set the interrupt mode is enabled and when the ...
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I C Serial Interface The HT1382 includes an I communication between multiple I (SDA) and the serial clock line (SCL).Both lines are connected to the positive supply via a pull-up resistor externally. When the bus is free, both lines ...
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HT1382 2 I C/3-Wire Real Time Clock Acknowledge Each bytes of eight bits is followed by one acknowledge bit. This acknowledge bit is a low level placed on the bus by the receiver. The master generates an extra acknowledge related ...
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Slave Address Register Address(An Write ACK Read Operation In this mode, the master reads the device data after setting the slave address. Following the R/W bit (= 0 ) and the ...
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HT1382 2 I C/3-Wire Real Time Clock Data Input and Data Out In writing a data byte, R/W is cleared the Command Byte and is then followed by the corresponding data register address on the rising edge ...
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Application Circuits Serial Interface 3-wire Serial Interface Rev. 1. C/3-Wire Real Time Clock 20 HT1382 May 27, 2011 ...
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HT1382 2 I C/3-Wire Real Time Clock Package Information 8-pin DIP (300mil) Outline Dimensions Symbol Symbol Rev. 1.40 Dimensions in inch Min. ...
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SOP (150mil) Outline Dimensions MS-012 Symbol Symbol Rev. 1. C/3-Wire Real Time Clock Dimensions in inch Min. Nom. 0.228 ...
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HT1382 2 I C/3-Wire Real Time Clock 8-pin TSSOP Outline Dimensions Symbol Symbol Rev. 1.40 Dimensions ...
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MSOP Outline Dimensions MO-187 Symbol Symbol Rev. 1. C/3-Wire Real Time Clock Dimensions ...
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HT1382 2 I C/3-Wire Real Time Clock 10-pin MSOP Outline Dimensions Symbol Symbol Rev. 1.40 Dimensions in inch ...
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Reel Dimensions SOP 8N Symbol Description A Reel Outer Diameter B Reel Inner Diameter C Spindle Hole Diameter D Key Slit Width T1 Space Between Flange T2 Reel Thickness TSSOP 8L Symbol Description A Reel Outer Diameter B Reel Inner ...
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HT1382 2 I C/3-Wire Real Time Clock Carrier Tape Dimensions SOP 8N Symbol Description W Carrier Tape Width P Cavity Pitch E Perforation Position F Cavity to Perforation (Width Direction) D Perforation Diameter D1 Cavity Hole Diameter P0 Perforation Pitch ...
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TSSOP 8L Symbol Description W Carrier Tape Width P Cavity Pitch E Perforation Position F Cavity to Perforation (Width Direction) D Perforation Diameter D1 Cavity Hole Diameter P0 Perforation Pitch P1 Cavity to Perforation (Length Direction) A0 Cavity Length B0 ...
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HT1382 2 I C/3-Wire Real Time Clock Holtek Semiconductor Inc. (Headquarters) No.3, Creation Rd. II, Science Park, Hsinchu, Taiwan Tel: 886-3-563-1999 Fax: 886-3-563-1189 http://www.holtek.com.tw Holtek Semiconductor Inc. (Taipei Sales Office) 4F-2, No. 3-2, YuanQu St., Nankang Software Park, Taipei 115, ...