Real time clock module Product Number (Please contact us) RTC-7301SF : Q42730181000200 RTC-7301DG : Q42730111000200 REAL TIME CLOCK MODULE (4-bit) RTC - 7301SF / DG *Built-in crystal unit 32.768 kHz with frequency adjusted *High speed parallel interface compatible with SRAM *Built-in alarm and timer interrupt functions. *Built-in semiconductor temperature sensor (Voltage output: -7.8 mV / C, only RTC-7301SF) *Frequency selectable clock output (32.768 kHz to 1/30 Hz) *Built-in 30 second adjustment function, digital pace adjustment function (Max. adjustment: 192 x 10-6) Actual size RTC-7301SF *Operating voltage range:2.4 V to 5.5 V, time keeping voltage range: 1.6 V to 5.5 V *Low current consumption (0.6 A / 3 V Typ.) RTC-7301DG Block diagram 32.768 kH z C ontrol Line OSC 1 V T E MP FOUT 2 FCON This is a block diagram for RTC-7301SF. D igital T rim ming R E G IS T E R D IV ID E R T em perature Sens or Be aware that RTC-7301DG differs according to the following 2 points. C LO C K and C A LE N D A R 1) The VTEMP output is not connected to an external pin. 2) The FCON input pin is not connected to an external pin, FCON is fixed at "H" internally. 1 7301S F 7301D G T IM E R R E G IS T E R FOUT C O N T R O LLE R / IR Q INT ERR U PT S C O N T R O LLER A 0 - A3 D0 - D3 / WR / RD / C S0 C S1 BUS IN T E R F A C E C IR C U IT A LA R M R E G IS T E R CO NTROL R EG IS T E R and SYS T E M C O N T R O LLE R 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 Input voltage VIN Output voltage(1) VOUT1 Output voltage(2) VOUT2 Storage TSTG temperature 0.25 *Refer to application manual for details. GND=0 V Min. -0.3 Max. +7.0 Unit 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 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 Ta=+25 C,VDD=3.0 V Ta=+25 C,VDD=2.4 V 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 term inal V DD (V DD ) (V DD ) CS 1 D0 D1 D2 D3 /W R 0 -15 Specifications (characteristics) Absolute Max. rating Conditions VDD to GND Input terminal, D0 to D3 pins /IRQ pin FOUT,D0-D3,VTEMP pin 18 17 16 15 14 13 12 11 10 2.54 Min. 2.54 The m etal c as e inside of the molding c ompound may be expos ed on the top or bottom of this product. This purely c os metic and does not have any eff ect on quality, reliability or electric al specs. Item Symbol Supply voltage VDD No. 0.2 4.2 Min. Max. 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 FCON FOUT V TEMP (V DD ) /IRQ A0 A1 A2 A3 /RD GND 6.3 No. 10.2 0.3 Range B:523 (*1) Unit x10 3.0 Max. s +10 / -120 x10 -6 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,V DD=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 Min. Typ. Max. Unit - 1.470 - V - - 5.0 C -7.3 -7.8 -8.3 mV/ C NL -40 CTa+85 C,VDD=2.7 V to 5.5 V - - 2.0 % TSOP NL 2.0 %,VDD=2.7 V to 5.5 V -40 - +85 C R0 Ta=25 C,VTEMP pins,VDD=2.7 V to 5.5 V GND standard and VDD standard - 1.0 3.0 k CL VDD=2.7 V to 5.5 V - - 100 pF RL VDD=2.7 V to 5.5 V 500 - - k - - 200 s -6 2.0 Max. x10 /V 5.0 Max. x10 /year -6 Load condition -6 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. 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