IDT1339-2DCGI IDT, Integrated Device Technology Inc, IDT1339-2DCGI Datasheet
IDT1339-2DCGI
Specifications of IDT1339-2DCGI
Related parts for IDT1339-2DCGI
IDT1339-2DCGI Summary of contents
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... REAL-TIME CLOCK WITH SERIAL I General Description The IDT1339 serial real-time clock (RTC low-power clock/date device with two programmable time-of-day alarms and a programmable square-wave output. Address and data are transferred serially through an I clock/date 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 ...
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... Connections for standard 32.768 kHz quartz crystal. The internal oscillator circuitry is designed for operation with a crystal having a specified load capacitance (CL pF — X2 external 32.768 kHz oscillator can also drive the IDT1339. In this configuration, the X1 pin is connected to the external oscillator signal and the X2 pin is left floating Backup supply input ...
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... CS is the shunt capacitance of the crystal (as specified in the crystal manufacturer's datasheet or measured using a network analyzer). Note: IDT1339CSRI integrates a standard 32.768 kHz (±20ppm) crystal in the package and contributes an additional frequency error of 10ppm at nominal and T C INTERFACE ...
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... BACKUP when drops below the device power is switched from drops below V . The registers are V CC BACKUP source until BACKUP returns above (see the REC IDT1339 RTC 1339 level. The device falls below V , the greater than BACKUP is returned ...
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... Note: This delay applies only if the oscillator is running. If the oscillator is disabled or stopped, no power-up delay occurs. 2 IDT® REAL-TIME CLOCK WITH SERIAL INTERFACE Powered BACKUP Yes V CC Yes V CC Symbol Conditions t (see note below) REC PF(MIN) VCCF PF(MAX) VCCR C INTERFACE 5 RTC Min. Typ. Max. Units 2 ms 300 µs 0 µs IDT1339 REV K 032910 ...
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... REAL-TIME CLOCK WITH SERIAL I Address Map Table 3 (Timekeeper Registers) shows the address map for the IDT1339 registers. During a multibyte access, when the address pointer reaches the end of the register space (10h), it wraps around to location 00h address pointer incrementing to location 00h, the current time is transferred to a second set of registers. The time information is read from these secondary registers, while the clock may continue to run ...
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... The time and date are set or initialized by writing the appropriate register bytes. The contents of the time and date registers are in the BCD format. The IDT1339 can be run in either 12-hour or 24-hour mode. Bit 6 of the hours register is defined as the 12- or 24-hour mode-select bit. ...
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... Special-Purpose Registers The IDT1339 has two additional registers (control and status) that control the RTC, alarms, and square-wave output. Control Register (0Eh) Bit 7 Bit 6 Bit 5 EOSC 0 BBSQI Bit 7: Enable Oscillator (EOSC). This bit when set to logic 0 starts the oscillator. When this bit is set to a logic 1, the oscillator is stopped ...
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... IDT® REAL-TIME CLOCK WITH SERIAL INTERFACE A2IE A1IE 4.096 kHz X X 8.192 kHz X X 32.768 kHz X X A1F 0 1 A2F 1 0 A2F + A1F 1 1 Bit 4 Bit 3 Bit and V are insufficient to support oscillation. BACKUP C INTERFACE 9 Bit 1 Bit 0 A2F A1F IDT1339 RTC REV K 032910 ...
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... The ROUT bits (bits 0 and 1) select the value of the resistor connected between Bit 3 Bit 2 Bit 1 Bit 0 DS1 DS0 ROUT 1 ROUT INTERFACE 10 Function Disabled Disabled Disabled No diode, 250 resistor One diode, 250 resistor No diode, 2k resistor One diode, 2k resistor No diode, 4k resistor One diode, 4k resistor Initial power-up values is greater than 3. IDT1339 RTC V CC REV K 032910 ...
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... I C bus. Within the bus specifications, a standard mode (100 kHz cycle rate) and a fast mode (400 kHz cycle rate) are defined. The IDT1339 works in both modes. Connections to the bus are made via the open-drain I/O lines SDA and SCL. ...
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... However, in this mode, the direction bit indicates that the transfer direction is reversed. Serial data is transmitted on SDA by the IDT1339 while the serial clock is input on SCL. START and STOP conditions are recognized as the beginning and end of a serial transfer (see the “Data Read– ...
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... The address pointer is incremented after each byte is transferred. The IDT1339 must receive a “not acknowledge” to end a read. Data Write – Slave Receiver Mode Data Read (from current Pointer location) – ...
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... Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the IDT1339. These ratings, which are standard values for IDT commercially rated parts, are stress ratings only. Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. ...
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... IDT1339 REAL-TIME CLOCK WITH SERIAL I Note B: When a back up supply voltage is connected choose proper part number 1339-2 or 1339-31 depending upon the back up supply voltage. 2 IDT® REAL-TIME CLOCK WITH SERIAL INTERFACE C INTERFACE 15 RTC IDT1339 REV K 032910 ...
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... BACKUP V Current EOSC = 0, SQW On BACKUP V Current EOSC = 1 BACKUP 2 IDT® REAL-TIME CLOCK WITH SERIAL INTERFACE = MIN to MAX, Ambient Temperature -40 to +85 C, Note 1 CC Symbol Conditions I Note Note IDT1339-2, Note IDT1339-31, OL Note 3 I Note Note Note 4 CCA I < 3. CCS CC 3.63 V < R1 Note 6 ...
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... 0. 0. 0.1C B 0.6 4.0 100 , trickle charger disabled IDT1339 RTC 400 kHz 100 µs µs µs µs µs 0.9 µs ns 300 ns 1000 300 ns 300 µs 400 REV K 032910 ...
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... LOW period (t is the period of time the oscillator must be stopped for the OSF flag to be set over the < MAX and 1.3 V < BACKUP INTERFACE 18 SU:DAT < 3.7 V. IDT1339 RTC of IHMIN ) of the SCL LOW > to 250 ns must + R(MAX) REV K 032910 ...
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... INTC=1 INTC 2.8 3.3 32768.1 32768.05 INTC=1 INTC=0 32768 INTERFACE 19 Icc vs Vcc (IDT1339-31) SDA=GND 2.7 3.2 3.7 4.2 4.7 Supply current (uA) Oscillator Frequency vs Supply Voltage (IDT1339-31) 2.8 3.3 3.8 4.3 4.8 Frequency (Hz) IDT1339 RTC SCL=400kHz SCL=0Hz 5.2 Freq 5.3 REV K 032910 ...
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... JA 1 m/s air flow JA 3 m/s air flow INTERFACE 20 Min. Typ. Max. Units 95 C/W 48 C/W Min. Typ. Max. Units 150 C/W 140 C/W 120 C/W 40 C/W Min. Typ. Max. Units 120 C/W 115 C/W 105 C/W 58 C/W IDT1339 REV K 032910 RTC ...
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... Bottom marking: country of origin if not USA. 2 IDT® REAL-TIME CLOCK WITH SERIAL INTERFACE Marking Diagram 92GI YWW$ IDT1339-2DVGI 8 5 IDT1339 -2DCGI #YYWW IDT1339-2DCGI C INTERFACE 21 (16 SOIC IDT 1339C-31 SRI #YYWW**$ 1 8 IDT1339C-31SRI 16 9 IDT 1339C-2 SRI ...
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... B 0.33 0.51 .013 C 0.19 0.25 .0075 D 4.80 5.00 .1890 E 3.80 4.00 .1497 e 1.27 BASIC 0.050 BASIC H 5.80 6.20 .2284 h 0.25 0.50 .010 L 0.40 1.27 .016 IDT1339 RTC Inches Max .0688 .0098 .020 .0098 .1968 .1574 .2440 .020 .050 REV K 032910 ...
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... C 0.08 0.23 0.003 D 3.00 BASIC 0.118 BASIC E 4.90 BASIC 0.193 BASIC E1 3.00 BASIC 0.118 BASIC e 0.65 Basic 0.0256 Basic L 0.40 0.80 0.016 0 8 aaa - 0.10 L IDT1339 RTC Inches* Max -- 0.043 0 0.006 0.038 0.015 0.009 0.032 0.004 c REV K 032910 ...
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... D 10.10 10.50 E 10.00 10.65 E1 7.40 7.60 e 1.27 Basic L 0.40 1. aaa - 0.10 *For reference only. Controlling dimensions in mm. L IDT1339 RTC Inches* Min Max -- 0.104 0.0040 -- 0.081 0.100 0.013 0.020 0.007 0.013 0.397 0.413 0.394 0.419 0.291 0.299 0.050 Basic 0.016 ...
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... The IDT1339 packages are RoHS compliant. Packages without the integrated crystal are Pb-free; packages that include the integrated crystal (as designated with a “C” before the dash number) may include lead that is exempt under RoHS requirements. The lead finish is JESD91 category e3. ...
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... J.Sarma 03/28/08 Added new note to Part Ordering information pertaining to RoHS compliance and Pb-free devices. F J.Sarma 05/18/08 Changed the part number for the 16PIN SOIC package from IDT1339C-31SOGI to IDT1339C-31SRI and the IDT1339C-2SOGI changed to IDT1339C-2SRI G J.Sarma 08/04/08 Removed “Preliminary”; removed UL statement from pin 3 description. ...
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... IDT1339 2 REAL-TIME CLOCK WITH SERIAL I C INTERFACE Innovate with IDT and accelerate your future networks. Contact: www.IDT.com For Sales 800-345-7015 408-284-8200 Fax: 408-284-2775 Corporate Headquarters Integrated Device Technology, Inc. www.idt.com © 2010 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT, ICS, and the IDT logo are trademarks of Integrated Device Technology, Inc ...