Real time clock module Product Number (Please contact us) RTC-7301SF : Q42730182000200 RTC-7301DG : Q42730112000200 4-bit REAL TIME CLOCK MODULE RTC - 7301SF / DG Built-in crystal unit 32.768 kHz with frequency adjusted Frequency selectable clock output (32.768 kHz to 1/30 Hz) Built-in 30 second adjustment function, digital pace adjustment function (Max. adjustment: 192 10-6) Built-in alarm and timer interrupt functions. Built-in semiconductor temperature sensor (Voltage output: -7.8 mV / C, RTC-7301SF) Operating voltage range:2.4 V to 5.5 V, Actual size RTC-7301SF time keeping voltage range: 1.6 V to 5.5 V Low current consumption (0.6 A / 3 V Typ.) High speed parallel interface compatible with SRAM RTC-7301DG Block diagram 32.768 kH z C ontrol Line D IVID E R O SC 1 V T EM P FO U T 2 FC O N This is a block diagram for RTC-7301SF. D igital T rim m ing R EG IS T E R T em perature Sensor Be aware that RTC-7301DG differs according to the following 2 points. C LO C K and C ALEN D AR 1) The VTEMP output is not connected to an external pin. 2) The FCON input pin is not connected to an external pin, but is fixed at "H" internally. 1 7301SF 7301D G T IM ER R EG IS T E R FO U T C O N T R O LLER / IR Q IN T ER R U PT S C O N T R O LLER A0 A3 D0 D3 / WR / RD / CS0 CS1 BUS IN T ER FAC E C IR C U IT A LA R M R EG IS T E R CONTROL R E G IST ER and S YS T EM C O N T R O LLER External dimensions/Terminal connection (Unit:mm) RTC-7301SF (SSOP 24-pin) RTC-7301DG (DIP 18-pin) 1 2 3 4 5 6 7 8 9 10 11 12 #13 R7301 5.4 E 123 4A #1 7.8 0.3 #24 #12 2.0 Max. No. No. Pin terminal V DD (V DD ) (V DD ) (V DD ) (V DD ) (V DD ) CS 1 D0 D1 D2 D3 /W R 24 23 22 21 20 19 18 17 16 15 14 13 23.1 Max. #18 E 123 4A #1 #9 Item Symbol Supply voltage VDD Input voltage Conditions VDD to GND Input terminal, D0 to D3 pins /IRQ pin FOUT,D0-D3,VTEMP pin VIN Output voltage(1) VOUT1 Output voltage(2) VOUT2 Storage TSTG temperature GND=0 V Min. -0.3 Max. +7.0 VDD+0.3 GND-0.3 V +8.0 VDD+0.3 C Stored as bare product. -55 +125 Symbol VDD VCLK Conditions - Min. 2.4 1.6 Max. Unit 5.5 V TOPR No condensation -40 +85 C Operating range Item Power voltage Clock voltage Operating temperature Unit GND = 0 V Frequency characteristics Item Symbol Frequency f /f precision Oscillation tSTA Start up time Frequency temperature TOP characteristics Frequency f/V voltage characteristics Aging fa (*1) Please ask tighter tolerance Conditions Range Unit Ta=+25 C,VDD=3.0 V B:523 (*1) 10-6 Ta=+25 C,VDD=2.4 V 3.0 Max. s +10 / -120 10 Ta=-10 C to +70 C VDD=3.0 V ,+25 C Ta=+25 C, VDD=1.6 V to 5.5 V Ta=+25 C, VDD=3.0 V First year Pin terminal V DD (V DD ) (V DD ) CS 1 D0 D1 D2 D3 /W R 0.25 0 -15 The metal case inside of the molding c ompound may be exposed on the top or bottom of this product. This purely cosmetic and does not have any effect on quality, reliability or electric al specs. Specifications (characteristics) 18 17 16 15 14 13 12 11 10 2.54 Min. 2.54 Absolute Max. rating No. 0.2 4.2 Min. M ax. 0 - 10 0.5 Pin terminal /CS0 F OUT /IRQ A0 A1 A2 A3 /RD GND 7.62 1.52 0.46 0.36 1 2 3 4 5 6 7 8 9 #10 RTC7301 0.15 0 Min. 0.8 Pin terminal /CS0 F CON F OUT V T EMP (V DD ) /IRQ A0 A1 A2 A3 /RD GND 6.3 No. 10.2 0.3 *Refer to application manual for details. DC characteristics Item (GND=0 V,VDD=1.6 V to 5.5 V,Ta=-40 C to +85 C) Symbol Conditions Min. /CS0,/RD,/WR=VDD IDD1 VDD=5 V A0-A3,CS1=GND D0-D3,/IRQ=Hi-z FOUT=Hi-z(OFF) IDD2 VDD=3 V VTEMP=Hi-z(OFF) Note)There is no VTEMP pin on the RTC-7301DG so standards for the VTEMP pin within the conditions described above do not apply. Current consumption (When non-accessed) FOUT =Output OFF VTEMP=Output OFF Temperature sensor characteristics Symbol Output precision TACR Ta=+25 C,VDD=2.7 V to 5.5 V VSE -40 CTa+85 C,VDD=2.7 V to 5.5 V Temperature sensitivity Linearity Temperature detection range Output resistance Max. 1.0 2.0 0.6 1.0 Unit A GND=0 V,Ta=-40 C to +85 C Item Temperature output voltage VTEMP Typ. Conditions Ta=+25 C,GND based output voltage VTEMP pins,VDD=2.7 V to 5.5 V NL -40 CTa+85 C,VDD=2.7 V to 5.5 V TSOP NL 2.0 %,VDD=2.7 V to 5.5 V R0 Ta=25 C,VTEMP pins,VDD=2.7 V to 5.5 V GND standard and VDD standard CL VDD=2.7 V to 5.5 V RL VDD=2.7 V to 5.5 V Min. Typ. Max. 1.470 -7.3 -7.8 -40 1.0 Unit V 5.0 C -8.3 mV/ C 2.0 % +85 C 3.0 k -6 2.0 Max. 10-6/V 5.0 Max. 10-6/year 100 pF Load condition Response time tRSP VDD=3.3 V CL=50 pF, RL=500 k, Max. 1 C Note)There is no temperature sensor function on the RTC-7301DG. 500 k 200 s PROMOTION OF ENVIRONMENTAL MANAGEMENT SYSTEM CONFORMING TO INTERNATIONAL STANDARDS At Seiko Epson, all environmental initiatives operate under the Plan-Do-Check-Action (PDCA) cycle designed to achieve continuous improvements. The environmental management system (EMS) operates under the ISO 14001 environmental management standard. 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