RTC4513

Real time clock module SERIAL-INTERFACE REAL TIME CLOCK MODULE RTC-4513 • • • • • Builtin crystal unit allows adjustment-free efficient operation. Using a serial interface, controllable only three signal lines. Automatic leap year correction. 30 second adjustment, available. Wide operating voltage from 2.7V to 5.5V. Actual size Specifications (characteristics) Absolute Max. rating Item Symbol VDD VIN VOUT TSTG -55 Condition VDD-GND -0.3 VDD+0.3 +125 ˚C Min. Max. 7.0 V Unit Terminal connection Power source voltage Input voltage Output voltage Storage temperature 14 13 12 11 10 9 8 Operating range Item Operating voltage Date holding voltage Symbol VDD VCLK TOPR Condition Min. 2.7 2.0 -40 +85 Typ. 5.0 Max. 5.5 Unit V ˚C No. Pin terminal N.C 1 DATA 2 STD.P 3 N.C 4 N.C 5 VDD 6 N.C 7 No. Pin terminal N.C 14 CLK 13 CE 12 N.C 11 N.C 10 GND 9 N.C 8 1234567 Operating temperature Frequency characteristics Item Frequency tolerance Frequency temperature characteristics Symbol ∆f/fo Top fV fa Condition Ta=25˚C, VDD=3V -10 to +70˚C Range 0±25 +10/-120 ±5 Unit ppm ppm/V ppm/year f-V characteristics Aging Ta=25˚C, VDD=2.0 to 5.5V First year Ta=25˚C, VDD=3V Electrical characteristics Item “H” input voltage “L” input voltage Input leak current 1 Input leak current 2 “L” output voltage 1 “H” output voltage “L” output voltage 2 Symbol VIH VIL IIL1 IIL2 VOL1 VOH VOL2 IOFLK IDD1 IDD2 IDD3 Condition — — Min. 0.8VDD Typ. Max. Unit V External dimensions (Unit: mm) VIN=VDD/GND (CE,CLK) VIN=VDD/GND (DATA) IO=1mA (DATA) IO=-400µA (DATA) IO=1mA (STD.P) VO=VDD VDD=5V, VIN (CE) =0V VDD=3V, VIN (CE) =0V VDD=2V, VIN (CE) =0V 10.0 2.5 1.0 0.8VDD 1/-1 10/-10 0.2VDD µA V 10.1±0.2 3.2±0.1 0˚ to 10˚ 0.05 min. 0.6 0.2VDD 3.1 Off leak current Current consumption 1 Current consumption 2 Current consumption 3 10.0 20.0 5.0 2.0 µA 7.4±0.2 0.2VDD R4513 E 607 6A 5.0 0.15 47 Real time clock module Register table Address A3 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 A2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 A1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 A0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Register symbol S1 S10 MI1 MI10 H1 H10 D1 D10 MO1 MO10 Y1 Y10 W CD CE CF D3 (MSB) s8 f0 mi8 fr h8 fr d8 fr mo8 fr y8 y80 fr 30ADJ t1 TEST y4 y40 w4 IRQ-F t0 24/12 D2 s4 s40 mi3 mi40 h4 pm/am d4 ∗ mo4 ∗ y2 y20 w2 CAL/HW INT/STND STOP D1 s2 s20 mi2 mi20 h2 h20 d2 d20 mo2 D0 (LSB) s1 s10 mi1 mi10 h1 h10 d1 d10 mo1 mo10 y1 y10 w1 HOLD MASK RESET — 0 to 6 0 to 9 0 to 5 0 to 9 0 to 5 0 to 9 0 to 1,2 0 to 9 0 to 3 0 to 9 0 to 1 0 to 9 10-year digit register day of the week register Control register D Control register E Control register F Register name 1-second digit register 10-second digit register 1-minute digit register 10-minute digit register 1-hour digit register 10-hour digit register 1-day digit register 10-day digit register 1-month digit register 10-month digit register 1-year digit register Switching characteristics Item CLK “H” time CLK “L” time CE setup time CE hold time CE recovery time CLK setup time CLK hold time Write data setup time Write data hold time Read data delay time Symbol tWH tWL tCS tCH tCR tCKS 20 tCKH tDS 50 tDH tRD tRZ — CLK rise time/fall time tRF CL=50pF — 250 100 20 CLK t CR Condition Min. 300 150 200 Max. Unit Timing chart t CKS t CS t WL t WH t CH t CKH CLK — 300 — ns CE Write mode tDS tDH Read data disable delay time Block diagram OSC STD.P Clock & calender Control register CD,CE,CF DATA V DD Decoder GND DATA Data buffer CLK CE Address counter Read mode tRF tRD tRF CLK Hi-z DATA CE tRZ 48