RTC-64611B

Real time clock module 8-bit REAL TIME CLOCK MODULE RTC-64611/64613 • • • • • • • • • Builtin crystal unit allows adjustment-free efficient operation. 8-bit data bus and high speed access (85 nsec. max.). Provided with the same interface as S-RAM and battery backup function. Interruption of alarm of sec. to day and day of week and carry interruption. Reference signal selectable in a range of 1 Hz to 64 Hz (binary). Leap year automatically adjustable (gregorian calendar). With 1 Hz output terminal. Provided with START/STOP, 30 second adjust function. RTC-64613 uses a similar mounting method to that of a normal SMD IC. Actual size Specifications (characteristics) Absolute Max. rating Item Power source voltage Input voltage Storage temperature Symbol VDD VIN TSTG RTC-64611 RTC-64613 RTC-64611 Soldering condition TSOL RTC-64613 Condition Ta=25˚C Specifications -0.5 to 7.0 -0.5 to VDD+0.3 -55 to +85 -55 to +125 Under 260˚C within 10 sec. (lead part) (package should be less than 150˚C) Twice at under 260˚C within 10 sec. or under 230˚C within 3 min. Terminal connection Unit V ˚C 24 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 No. 1 2 3 4 5 6 7 8 9 10 11 12 Pin terminal GND H-START/STOP IRQ 1HZ A3 A2 A1 A0 I/O1 I/O2 I/O3 GND No. Pin terminal 13 I/O4 14 I/O5 15 I/O6 16 I/O7 17 I/O8 18 CS 19 OE 20 WE 21 NC (VDD) 22 (VDD) 23 24 VDD Operating range Item Symbol VDD TOPR VDH tCDR tR Condition — CS ≥ VDD - 0.2V Specifications 4.5 to 5.5 -20 to + 75 2.0 to 4.5 0 min. tRC (85 ns.) ns Unit V ˚C V (VDD) is to be same level as VDD. Do not connect it to any external terminals. NC is not connected internally. Operating voltage Operating temperature Data holding voltage CS data holding time Operation restoring time External dimensions RTC-64611 ( Unit: mm ) Frequency characteristics and current consumption characteristics Item Symbol Condition 64611 A Ta=25˚C 64611 B VDD=5V 64613 A 64613 Frequency temperature characteristics Aging Shock resistance Current consumption (25˚C reference temperature) (25˚C reference temperature) Specifications +15/-5(5±10) +55/-45(5±50) +25/-15(5±20) +55/-45(5±50) +10/-220 +10/-120 Unit RTC 64611 A EPSON 5101A 32.0 max. Frequency tolerance ∆f/fo ppm 15.24 0.8 4.4 -10 to +70˚C -20 to +75˚C 13.6 fa S.R. IDD 1 IDD 2 VDD=5V, Ta=25˚C, first year Three drops on a hard board from 75 cm or 3000G x 0.3ms x 1/2 sine wave x 3 directions ±5 max. ±10 max. 2 max. ppm/Y ppm mA µA 16.3 max. 3.3 0.25 90° to 105° No load VDD=5V __ CS ≥ 1.8V VDD=2V RTC-64613 Unless otherwise stated, characteristics (specifications) shown in the above table are based on the rated operating temperature and voltage condition. DC characteristics Item “H” input voltage “L” input voltage Input leak current Symbol VIH VIL IIN ITSL ILOH VOH VOL CIN COUT Condition ( VDD = 5V ± 0.5V, Ta = -20 to + 75˚C ) VDD= 5V±10% VDD= 2V 2.2 -0.3 — VDD 0.8 ±2 ±10 — 0.4 — 12.5 — V 2.8 max. 0.3 VDD -0.2 -0.3 VDD 0.2 ±2 ±10 V Three-state leak current Output leak current “H” output voltage ___ (except for 1 Hz, IRQ) µA “L” output voltage Input capacity Output capacity IOL=2.1mA VIN=OV Ta=25˚C f =1.0 MHz 2.5 — pF 0.05 min. 1.0 0° to 10° 69 0.2 IOH=-1mA 2.4 12.2 max. Min. Max. Min. Max. Unit RTC64613 A EPSON9360A 7.9 Real time clock module Register table Address Switching characteristic Data Remarks b2 16 Hz b1 32 Hz b0 64 Hz Measuring condition Input pulse level: 0.8 to 2.4V Input rise time, fall time: 5 nsec. IN/OUT timing pulse level: 1.5V Out put load: 1 TTL Gate +100pF b7 ∗ 0 1 2 3 4 5 6 7 8 9 A B C D b6 1 Hz b5 2 Hz b4 4 Hz b3 8 Hz 10-sec. digit 10-min. digit 10-hour digit ∗ ∗ ∗ 10-day digit 10-month ∗ digit 10-year digit 2 Hz 4 Hz 1 Hz 10-sec. digit 10-min. digit ∗ 10-hour digit ∗ 10-day digit ∗ ∗ ENB 1-sec. digit 1-min. digit 1-hour digit Day-of-week digit 1-day digit 1-month digit 1-year digit 8 Hz 16 Hz 32 Hz 64 Hz 1-sec. digit 1-min. digit 1-hour digit Day-of-week digit 1-day digit ∗ Alarm flag Counter Read mode Item Read cycle time Alarm register Address access time Chip select access time Output enable access time Output hold time Control register Chip select / output set time Output enable / output set time Chip deselect / output floating Output disable / output floating t RC Address Symbol tRC tAA tACS tOE tOH tCLZ tOLZ tCHZ tOHZ Min. 85 Max. — 85 Unit — 45 10 — 5 0 35 ns E Carry flag Carry Alarm interruption interruption enable enable F ∗1 S.START RAM7 RAM6 RAM5 RAM4 TEST 30-sec. RESET adjustment /STOP ∗1 Be sure to enter “O” to TEST bit. Supplement Bit name ∗ mark Description Empty bit and unwriteable Recognized as “0” while reading Only for 24H mode Read only (unwriteable) Used as binary code data t AA t OH OE VOL VOL 10-hour digit (b5) Under-sec. counter Under-sec. alarm register Sec.to year Day of week t OE t OLZ CS VOL VOL t OH t OHZ t OHZ Used as binary code data Both counter and alarm register use BCD code Coded data is used EX: 0…Sunday 1…Monday 4…Thursday 5…Friday DOUT t ACS t CHZ Data valid 2…Tuesday 3…Wednesday 6…Saturday Write mode Item Write cycle time Chip select time Symbol tWC tCW tAW tAS tWP tWR tWHZ tDW tDH tOHZ tOW t WC Address Note: Do not enter erroneous data for clock. This may result in time keeping error. Min. 85 75 0 60 10 0 40 0 Max. Unit Block diagram OSC 32.768 KHZ 16 KHz 2 KHz 32 Hz 8 KHz 1 KHz 16 Hz 4 KHz 512 Hz 8 KHz 256 Hz 4 Hz 128 Hz 2 Hz 64 Hz 1 Hz 1 Hz Address valid time Address setup time Write pulse time — ns H • START / STOP 64 Hz register / counter Sec. register / counter Min. register / counter Hour register / counter Day-of-week register / counter Day register / counter Month register / counter Year register / counter Alarm comparison circuit Address holding time ___ WE output floating Input data set time Input data hold time Output disable / output floating ___ WE output set time IRQ 35 — 35 5 — 64 Hz alarm. register Sec. alarm. register Min. alarm. register Hour alarm. register Day-of-week alarm. register Day alarm. register t W-R OE Control register A Control register B Write Read Bus interface circuit t CW CS WE t AS t AW t OHZ DOUT I/0 1 to I/0 3 Data bus A 0 to A 3 Address bus CS OE WE t WP t DW t DH DIN 70