1339-2DVGI IDT, 1339-2DVGI Datasheet
1339-2DVGI
Specifications of 1339-2DVGI
Related parts for 1339-2DVGI
1339-2DVGI 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 ...
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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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... 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 CC is returned to ...
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... 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 R 121012 ...
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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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... C 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 R 121012 ...
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... C 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 R 121012 ...
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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. The following bus protocol has been defined (see the “Data ...
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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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... IDT1339-31, Note A Power Fail Voltage IDT1339-2, Note B IDT1339-31, Note B Note A: Operating voltages without a back up supply connected. 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 ...
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... BACKUP V Current EOSC = 1 BACKUP 2 IDT® REAL-TIME CLOCK WITH SERIAL INTERFACE = MIN to MAX, Ambient Temperature -40 to +85C, 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 < ...
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... C bus inactive, VIL = 0.0V, VIH = C INTERFACE 16 Min. Typ. Max. Units 100 1.3 4.7 0.6 4.0 1.3 4.7 0.6 4.0 0.6 4 100 250 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 R 121012 ...
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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 C INTERFACE 17 SU:DAT < 3.7 V. IDT1339 RTC of IHMIN ) of the SCL LOW > to 250 ns must + R(MAX) REV R 121012 ...
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... IDT® REAL-TIME CLOCK WITH SERIAL INTERFACE =3.3V, T =25 INTC=1 INTC 2.8 3.3 32768.1 32768.05 INTC=1 INTC=0 32768 INTERFACE 18 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 R 121012 ...
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... JA 3 m/s air flow JA INTERFACE 19 Min. Typ. Max. Units C/W 95 C/W 48 Min. Typ. Max. Units C/W 150 C/W 140 C/W 120 C/W 40 Min. Typ. Max. Units C/W 120 C/W 115 C/W 105 C/W 58 IDT1339 REV R 121012 RTC ...
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... RoHS compliant package. 6. “I” denotes industrial grade. 7. Bottom marking: country of origin if not USA. 2 IDT® REAL-TIME CLOCK WITH SERIAL INTERFACE Marking Diagram 92GI YYWW$ IDT1339-2DVGI 8 5 IDT1339 -2DCGI #YYWW IDT1339-2DCGI C INTERFACE 20 (16 SOIC) ...
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... C INTERFACE 21 Millimeters Symbol Min Max Min A 1.35 1.75 .0532 A1 0.10 0.25 .0040 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 0 8 L IDT1339 RTC Inches Max .0688 .0098 .020 .0098 .1968 .1574 .2440 .020 .050 0 8 C REV R 121012 ...
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... E1 2.90 3.10 e 0.65 Basic L 0.445 0.648 0 6 Θ1 *For reference only. Controlling dimensions in mm. “E” dimension is 4.9mm Basic per JEDEC standard; Tolerance is ±0.25mm or ±0.0098 inches IDT1339 RTC Inches* Min Max -- 0.043 0.002 0.006 0.032 0.036 0.008 0.015 0.008 0.013 ...
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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 1.27 0 8 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 0.050 0 8 - 0.004 c ...
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... IDT1339 REAL-TIME CLOCK WITH SERIAL I Ordering Information Part / Order Number Marking 1339-2DVGI 1339-2DVGI8 1339-2DCGI 1339-2DCGI8 1339AC-2SRGI 1339AC-2SRGI8 see page 20 1339-31DVGI 1339-31DVGI8 1339-31DCGI 1339-31DCGI8 1339AC-31SRGI 1339AC-31SRGI8 The IDT1339 packages are RoHS compliant. Packages without the integrated crystal are Pb-free; packages that include the integrated crystal (as designated with a “ ...
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... Added 8-pin SOIC package; updated “Power-up/down Characteristics” table; updates to “Absolute Maximum Ratings” table Sarma 02/11/08 Combined part numbers for 1339-3 and 1339-33 into one part number: 1339-31. E J.Sarma 03/28/08 Added new note to Part Ordering information pertaining to RoHS compliance and Pb-free devices. ...
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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 © 2012 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 ...