Real Time Clock Modules - Seiko Epson Serial Interface RTC4553 Features • Streamlined and adjustment free • Small package makes high density mounting possible • Automatic calendar function (year, month, day, day of week, hour minute, second) • Built in 30 x 4 bit S-RAM • High speed access • Reference pulse output (1024Hz, 10Hz) • Low current consumption due to C-MOS IC (1µA typical) Specifications DC Characteristics Absolute Maximum Rating Item Symbol Supply voltage Input voltage VDD VIN Output voltage Storage temperature Soldering conditions VOUT TSTG •VDD5V±10% Condition MIN MAX VDD-GND -0.3 SIN SCK, WR, -0.3 CS0, CS SOUT, TPOUT -0.3 Stored without -55 Tape & Reel TSOL Unit +6.0 VDD+0.3 V VDD+0.3 +125 V °C Operating voltage Operating temperature Data holding Current consumption Output voltage Off leak current Under 260°C within 10 sec. x up to 2 times or under 230°C within 3 min. Input voltage Input current Operating Range Item Item Symbol Condition MIN TYP. MAX. Unit VDD 2.7 TOPR -30 5.0 5.5 V +70 °C Oscillation startup time (GND=0V, Ta=30°C +70°C) Symbol Condition VDH IDD1 IDD2 VOH VOL IOZH IOZL VIH VIL IIH IIL TS SCK=500kHz SCK=DC IOH=-400µA IOL=1.6mA VOUT=5.5V VOUT=0V VIN=5.5V IILVIN=0V Ta=25°C •VDD3V±10% Frequency Characteristics Item Symbol Frequency tolerance ∆f/fo Frequency temperature characteristics Frequency voltage characteristics Aging top f/V fa Condition Range Unit Ta=25°C, VDD=5V AA A B Ta=-10 to +70°C, VDD=5V Reference at 25°C Ta=Fix, VDD=2 to 5.5V Reference at 5V Ta=25°C, VDD=5V first year 5.0±5.0 5.0±10.0 5.0±20.0 -10.0 ppm ppm ppm ppm +120.0 ±5 ppm ppm ±5 ppm/ year Item Data holding Current consumption Output voltage Off leak current Input voltage Input current Oscillation startup time Min Top Max Unit 2.0 1.0 5.5 100 3.0 VDD-0.4 -2.0 -2.0 4/5 VDD -2.0 -2.0 V µA V 0.4 2.0 2.0 V V 1/5 VDD 2.0 µA 2.0 3.0 S (GND=0V, Ta=30°C +70°C) Symbol Condition VDH IDD1 IDD2 VOH VOL IOZH IOZL VIH VIL IIH TS Min Top Max Unit 2.0 SCK=300kHz SCK=DC 1.0 IOH=-400µA VDD-0.4 IOL=1.6mA VOUT=3.3V -2.0 VOUT=0V -2.0 4/5 VDD VIN=3.3V IIL Ta=25°C 3.3 100 3.0 V µA V 0.4 2.0 2.0 µA V 1/5 VDD -2.0 2.0 µA VIN=0V* -2.0 2.0 3.0 S Dimensions (mm) Pin Connections 1. 2. 3. 4. 5. 6. 7. GND WR SIN SCK L1 L2 L3 14. 13. 12. 11. 10. 9. 8. TP OUT S OUT CS1 CS0 L5 L4 VDD T E L : + 4 4 1 6 3 5 5 2 8 5 2 0 FA X : + 4 4 1 6 3 5 5 2 8 4 4 3 Real Time Clock Modules - Seiko Epson Serial Interface RTC-4553 Continued Register Table Address Register A3 A2 A1 A0 symbol 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 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Timing Chart S1 S10 MI1 MI10 H1 H10 W D1 D10 M01 M010 Y1 Y10 C1 C2 C3 MODE 0 Counter control register D2 D1 D0 register name MODE1 MODE 2 User RAM Domain 1 User RAM Domain 2 D3 D2 D1 D0 D3 D2 D1 D0 S8 0 mi8 0 h8 PM/AM 0 d8 0 mo8 0 y8 y80 S4 S40 mi4 mi40 h4 0 w4 d4 0 mo4 0 y4 y40 S2 S20 mi2 mi20 h2 h20 w2 d2 d20 mo2 0 y2 y20 S1 S10 mi1 mi10 h1 h10 w1 d1 d10 mo1 mo1 y1 y10 CNTR 24/12 MS1 * MS0 RA3 RA7 RA11 RA15 RA19 RA23 RA27 RA31 RA35 RA39 RA43 RA47 RA51 RA55 RA59 D3 TPS 30ADJ BUSY PONC SYSR TEST 1-second digit register 10-seconds digit register 1-minute digit register 10-minutes digit register 1-hour digit register 10-hours digit register Day of the week digit register 1-day digit register 10-days digit register 1-month digit register 10-months digit register 1-year digit register 10-years digit register Control register 1 Control register 2 Control register 3 RA2 RA1 RA0 RA6 RA5 RA4 RA10 RA9 RA8 RA14 RA13 RA12 RA18 RA17 RA16 RA22 RA21 RA20 RA26 RA25 RA24 RA30 RA29 RA28 RA34 RA33 RA32 RA38 RA37 RA36 RA42 RA41 RA40 RA46 RA45 RA44 RA50 RA49 RA48 RA54 RA53 RA52 RA58 RA57 RA56 Same as mode 0 RA63 RA62 RA61 RA60 RA67 RA66 RA65 RA64 RA71 RA70 RA69 RA68 RA75 RA74 RA73 RA72 RA79 RA78 RA77 RA76 RA83 RA82 RA81 RA80 RA87 RA86 RA85 RA84 RA91 RA90 RA89 RA88 RA95 RA94 RA93 RA92 RA99 RA98 RA97 RA96 RA103 RA102 RA101 RA100 RA107 RA106 RA105 RA104 RA111 RA110 RA109 RA108 RA115 RA114 RA113 RA112 RA119 RA118 RA117 RA116 Same as mode 0 Switching Characteristics VDD=5V ±10%, GND=0V, Ta=-30 to 70°C) Item SCK input frequency SCK “L” time SCK “H” time SCK Pause time CS0 Set up time CS0 Hold time SIN Data set up time SIN Data hold time WR Set up time WR Hold time SOUT Delay time CS0 and CS1 Enable to SOUT Output CS0 Disable to SOUT High Z CS1 Enable to SOUT Output CS1 Enable to SOUT High Z Symbol Condition Min Typ Max. Unit fSCK tWSCKL tWSCKH tPS tSCS tHSC tSD tHD tSWR tHWR tDSO 500 CL=100pF tDSZ1 CL=100pF 100 tDSZ2 CL=100pF 100 nsec tDPZ1 CL=100pF 100 tDPZ2 CL=100pF 100 1.0 1.0 1.0 0 0.5 0.2 0.2 1.0 0.5 kHz µsec 150 500 Block Diagram T E L : + 4 4 1 6 3 5 5 2 8 5 2 0 FA X : + 4 4 1 6 3 5 5 2 8 4 4 3