KR3225Y32768EAW30TAA

Real Time Clock Modules Surface Mount Type Digital Temperature Compensated RTC Modules KR3225Y Series CMOS/ 3.0V Typ./ 3.2×2.5mm How to Order • Miniature SMD type (3.2×2.5×1.0mm) • Built-in 32.768kHz D-TCXO • I2C-BUS serial interface type : 400kHz high speed type • Frequency selection function : 32.768kHz, 1024Hz, 32Hz, 1Hz • Voltage detection function : 2.0V temp. compensated voltage detection 1.5V Low Voltage Detection • Various functions including full calender, alarm and timer • Operating Temp. −40 to +105°C (option) Frequency Tolerance (vs Temp.) : ±3.8×10−6/ −10°C to 60°C Applications KR3225Y 32768 D G R □□ T xx ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ Frequency Tolerance (vs Temp.) : ±5.0×10−6/ −40°C to 85°C KR3225Y 32768 E A W □□ T xx ① ② ① Series ③ Frequency Stability ⑤ Upper Temperature DGR EAW ③ ±3.8×10−6 ±5.0×10−6 ② Output Frequency ④ Lower Temperature ④ −10°C −40°C ⑥ Supply Voltage • High accuracy time references ③ ④ ⑤ ⑥ ⑦ ⑧ ign s AEC-Q200 RoHS Compliant Features ⑦ Initial Frequency Tolerance T 3.0V 3.3V 5.0V Pr -E od xis uc tin ts g De s 30 33 50 ⑤ +60°C +85°C ±3.0×10−6 ⑧ Individual Specification 　 Packaging (Tape & Reel 3000 pcs./ reel) Specifications Item Pin Functions Symbol Nominal Frequency Time Keeping Voltage Temperature Compensation Voltage Interface Voltage Operationg Temperature Range Frequency Stability vs. Temp. t_str Power Supply Current1 ICC2 rP Power Supply Current2 ICC1 Min. Low Voltage Detection Voltage Typ. Max. — 32.768 — 1.3 3.0 5.5 2.0 3.0 5.5 1.5 3.0 5.5 −40 +25 +85 −5.0 — +5.0 — — 1.0 — — 3.0 — — — No condensation E : Ta=−40 to +85°C Ta=25°C Ta=−40 to +85°C SCL=SDA=/ INT=VDD, CLKOE=VSS CLKOUT Non-operating output VDD=3V SCL=SDA=/ INT=VDD, CLKOE=VDD CLKOUT output 32.768kHz,VDD=3V Output at no load SCL=SDA=/ INT=VDD, CLKOE=VDD CLKOUT output 32.768kHz,VDD=3V CL=15pF re Start up Time f_nom VDD VTEM VINT T_use fo-Tc Specification Conditions VDET Unit Pin Name I/ O Function CLKOE I Input to control the output mode of the CLKOUT / INT O Outputs for alarm signals, timer signals, timer update signals and other signals kHz V V V °C ×10−6 sec sec Vss — Pin connected to ground CLKOUT O 32.768kHz signal output (CMOS output) — 0.6 2.0 μA SCL I Serial clock input for I2C BUS communications — 1.5 4.0 μA SDA I/ O Serial data input output for I2C BUS communications — 2.7 5.5 μA VDD — This pin is connected to a positive power supply 1.3 1.4 1.5 V * Please contact us for other specifications. Dimensions fo Block Diagram #7 2.5±0.2 K #1 #2 SDA C0.15 / INT 0.6 0.55 1.1 #1 0.85 0.5 #2 #3 #4 1.1 I2C-BUS INTERFACE #4 TIMER REGISTER 0.7 SCL INTERRUPT CONTROL 0.35 CLKOE #3 0.6 #8 #7 #6 0.4 0.5 0.5 0.5 CLOCK CALENDER COUNTER ALARM REGISTER CLKOUT CONTROL #5 0.85 DIVIDER 0.45 CLKOUT #6 0.55 VDD VSS (Unit: mm) 0.27 EEPROM Recommended Land Pattern 3.2±0.2 #8 1.0 max. 32.768kHz (Unit: mm) #5 R0.15 Pin No #1 #2 #3 #4 #5 #6 #7 #8 Function CLKOE / INT N.C VSS CLKOUT SCL SDA VDD 0.4 0.4 0.4 Note: A capacitor of value 0.01µF between VDD and GND is recommended. As of February 2019