DD3225TR

Pb-Free RoHS Compliant
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Features

  • Precision : ±11.5×10-6 (30 seconds per month), 
    ±23.0×10-6 (60 seconds per month)
  • Low current consumption
  • Low voltage operation : +1.5 to +5.5V, +1.3 to +5.5V (Clock Timing
    Operating)
  • I2C-BUS serial interface：400kHz fast-mode compatible
  • Clock function：hour・minute・second，Calendar function with auto
    leap year adjustment：year・month・day・day of week
  • Alarm interrupt function：day・day of week・hour・minute
  • Fixed-cycle timer interrupt function：244.14μs to 255min
  • Time update interrupt function：minute・second
  • Clock output function：32.768kHz, 1024Hz, 32Hz, 1Hz
  • Supply voltage detection function：+1.5V temperature compensation operating
    voltage detection, +1.3V supply voltage under voltage detection
  • CMOS Level Output

"I2C-BUS" is a trademark of NXP semiconductors.

Applications

  • Calendar, Timer, Alarm, Standard for watches
  • Remote control with calendar, Data logger, Wireless sensor, Amusement device

Standard Specification

Item Legend Spec. unit Condition
min. typ. max.
Output Frequency fo - 32.768 - kHz  
Supply Voltage Range VCC +1.3 - +5.5 V (Clock Timing Operating)
Vint +1.5 - +5.5 (Interface Operation) I2C-BUS
Frequency Tolerance f_tol -11.5 - +11.5 ×10-6 Ta＝25℃, Vcc＝+3.0V (30 seconds per month)
-23 - +23 Ta＝25℃, Vcc＝+3.0V (60 seconds per month)
Operating temperature range Ta -40 - +85 ℃  
Current Consumption ICC1 - 0.29 2.10 μA VCC＝+3.0V SCL=SDA=INTN=Vcc,OE=GND (Output Off)
- 0.41 2.90 VCC＝+5.0V
ICC2 - 0.89 2.80 VCC＝+3.0V No Load,
SCL=SDA=INTN=OE=Vcc (Output On)
- 1.29 4.00 VCC＝+3.0V
Load Condition L_CMOS - - 15 pF  
Symmetry SYM 40 - 60 % 50%VCC
1 level Output Voltage VOH 0.8×Vcc - - V IOH=-1mA
0 level Output Voltage VOL - - 0.2×Vcc V IOL=1mA
Rise / Fall Time Tr/Tf - - 100 ns 20 to 80%Vcc
OE Pin
1 level Input Voltage		 VIH 0.8×Vcc - Vcc V  
OE Pin
0 level Input Voltage		 VIL 0 - 0.2×Vcc V  
Start Up Time Tstart - - 1 s Ta=+25℃, Vcc=+1.3V
Packing Unit (1) 2000pcs./reel（φ180）

(1) Moisture prevention packing

Consult our sales representative for other specifications.

Pin Function

No. Name I/O Function
#1 Vcc - Supply Voltage
#2 OE I Output control enable input
(L：High impedance，H：Clock output）
#3 N.C. - Do not connect
#4 Output O Clock output connection
#5 SCL I I2C-BUS serial interface clock input connection
#6 EVENT I Trigger input for Time stamp request. Internal pull-up
resistor can be selected. Input polarity can be selected.
#7 SDA I/O I2C-BUS serial interface data input/output connection
#8 N.C. -  
#9 GND - Ground connection
#10 INTN O 1Hz signal，alarm interrupt signal，fixed-cycle timer
interrupt signal， and time update interrupt signal,
Nch open-drain output.

Dimentions, etc. (Click for full size)

Reference

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