Real time clock module 4-bit MULTIFUNCTIONAL REAL TIME CLOCK MODULE RTC-63421/63421M/63423 • • • • • Built-in crystal unit allows adjustment-free efficient operation. Alarm interruption of sec. to month and day of week possible. Standard signal output selectable in a range of 10 min to 1024 Hz. Either sec. to hour and day of week or sec. to year and day of week is selectable. Reference area of time /alarm register is setable. Provided with RAM bits. (marked on “∗” which is shown resister table) • Provided with START/STOP 30 second adjusting function. • Similar mounting method (RTC-63423) to the used for normal type SMD IC. Actual size Terminal connection Model Applicable CPU RTC-63421/63421M RTC-63421 Intel bus system RTC-63421M Motorola bus system RTC-63423 “MOTEL” bus system 18 17 16 15 14 13 12 11 10 Specifications (characteristics) Absolute Max. rating Item Power source voltage Input voltage storage temperature Soldering condition 1 Symbol Condition Ta=+25 °C VDD VIN Ta=+25 °C TSTG TSOL Specifications Unit -0.3 to 7.0 -0.3 to VDD+0.3 V -55 to +85 -55 to +125 °C RTC-63421 RTC-63421M RTC-63423 63423 No. 63421/63421M No. INTERRUPT 1 1 INTERRUPT CS 0 2 2 CS 0 ALE 3 3 ALARM A0 4 4 ALE A1 5 5 A0 A2 6 6 30sec.Adj A3 7 7 A1 RD (E ∗1) 8 8 68/80 GND 9 9 A2 10 WR (R/W ∗1) 10 A3 D3 11 11 RD (E ∗2) D2 12 12 GND D1 13 13 WR (R/W ∗2) D0 14 14 D3 CS1 15 15 D2 (VDD) 16 16 D1 (VDD) 17 17 1H Z VDD 18 18 D0 19 CS 1 20 STOP/ START 21 NC (VDD) 22 (VDD) 23 24 VDD RTC-63421 RTC-63421M Under +260 °C within 10 s (lead part) (package should be less than +150 °C) RTC-63423 Twice at under +260 °C within 10 s or under +230 °C within 3 min. 2 3 4 5 6 7 8 9 RTC-63423 24 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 ∗ 1=63421M (VDD) is to be same level as VDD. Do not connect it to any external terminals. NC is not connected internally. Operating range Symbol Operating temperature TOPR Data holding voltage VDH CS data holding time tCDR Operation restoring time Condition VDD tR ------- Refer to the data holding timing Specifications Unit 4.5 to 5.5 V -40 to +85 °C 2.0 to 5.5 V 2.0 Min. µs External dimensions RTC-63421/63421M (Unit: mm) 23.1 Max. 6.3 Item Operating voltage ∗ 2=Motorola bus system RTC63421 A EPSON 6051A Ta=+25 °C 63421B/63421MB +55/-45 (5±50) VDD= 5 V 63423 A +25/-15 (5±20) x 10-6 79 Shock resistance S.R. Current consumption IDD 1 IDD 2 -10 to +70 °C +10/-120 -30 to +85 °C +10/-220 Three drops on a hard board from 750 mm or 294000 m/s2 x 0.3 ms x 1/2 sine wave x 3 directions CS 1=0 V 16.3 Max. ±5 Max. x 10-6/year ±10 Max. x 10-6 VDD=5 V 30 Max. VDD=2 V 1.8 Max. RTC63423 A EPSON 6100 µA Unless otherwise stated, characteristics (specifications) shown in the above table are based on the rated operating temperature and voltage condition. 1.27 0.35 0.05 Min. 2.8 Max. 0° to 10° 1.0 0.2 fa RTC-63423 2.5 Aging 0.65 Max. +55/-45 (5±50) (+25 °C reference temperature) (+25 °C reference temperature) VDD=5 V, Ta=+25 °C, first year 2.54 3.3 Min. Specifications +15/-5 (5±10) 63423 Frequency temperature characteristics Unit 63421A/63421MA 0.3 ∆f/fo Condition 7.9 Frequency tolerance Symbol 0.25 90° to 105° 12.2 Max. Item 4.2 Max. Frequency characteristics and current consumption characteristics 0.2 Min. 7.62 Real time clock module Data holding timing Switching characteristics ( VDD = 5 V ± 0.5 V, Ta = 0 to + 70 °C) Motorola bus system VDD 4V t CDR CS1 Min. tRWE 100 E “H” pulse width tEHW 220 __ R/W, address hold time tERW 20 E “L” pulse width tELW 220 E cycle time tEC 500 DATA setup time tDS 180 DATA hold time tDH 20 E to data (CL=150 pF) tRD –– 120 Data hold tED 10 –– Item tR VIH2 VIL2 CS1 ≤ 1/5VDD VIL2 VIL2 Data holding mode Interface possible with external terminals Symbol __ R/W, address setup time 4V 2 to 4 V CS0 or WR not occurred Interface possible with the external terminals Address Register table Symbol of register 0 1 2 3 4 R-S1 R-S10 R-MI1 R-MI10 R-H1 D3 r-S8 ∗ r-mi8 ∗ r-h8 5 R-H10 ∗ 6 7 8 9 A B C R-D1 R-D10 r-d8 R-MO1 R-MO10 r-mo8 R-Y1 R-Y10 R-W r-y8 r-y80 ∗ r-mo4 ∗ r-y4 r-y40 r-w4 D CD IT/PLS2 IT/PLS1 MASK2 MASK1 Control register D E CE IRQ ⋅ FLAG0 RESET IRQ ⋅ FLAG2 IRQ ⋅ FLAG1 Control register E F CF BANK1 BANK0 STOP 30 sec. ADJ READ FLAG Control register F BANK 0 D1 r-S2 r-S20 r-mi2 r-mi20 r-h2 D0 r-S1 r-S10 r-mi1 r-mi10 r-h1 Real time register name 1 - sec. digit register 10 - sec. digit register 1 - min. digit register 10 - min. digit register 1 - hour digit register r-PM/AM r-h20 r-h10 10 - hour digit register r-d4 r-d2 r-d20 r-mo2 r-y2 r-y20 r-w2 r-d1 r-d10 r-mo1 r-mo10 r-y1 r-y10 r-w1 1 - day digit register 10 - day digit register 1 - month digit register 10 - month digit register 1 - year digit register 10 - year digit register Week register D2 r-S4 r-S40 r-mi4 r-mi40 r-h4 ___ ∗ Max. Unit –– ns Switching characteristics on the Intel bus system are the same as those for the RTC-6242 series. Write mode R/W VIL1 VIL1 VIH1 VIH1 VIL1 VIL1 A0 to A3 t RWE t EHW t ERW t ELW VIL1 E VIH1 VIH VIL1 t DS t DH VIH1 D0 to D3 VIH1 VIL1 Symbol of register D1 a-S2 a-S20 a-mi2 a-mi20 a-h2 D0 a-S1 a-S10 a-mi1 a-mi10 a-h1 Alarm register name 1 - sec. digit register 10 - sec. digit register 1 - min. digit register 10 - min. digit register 1 - hour digit register a-PM/AM a-h20 a-h10 10 - hour digit register a-d4 a-d2 a-d20 a-mo2 a-w2 ae2 TEST2 a-d1 a-d10 a-mo1 a-mo10 a-w1 ae1 TEST1 1 - day digit register 10 - day digit register 1 - month digit register 10 - month digit register Week register Area define register Test register A-S1 A-S10 A-MI1 A-MI10 A-H1 D2 a-S4 a-S40 a-mi4 a-mi40 a-h4 A-H10 ∗ A-D1 A-D10 a-d8 A-MO1 A-MO10 a-mo8 A-W A-EMB ___ ∗ a-mo4 ∗ r-w4 ae4 ∗ ae8 CC ∗ Read mode R/W A0 to A3 VIH1 VIH1 VIH1 VIH1 VIL1 VIL1 t RWE E VIL1 t EHW VIH1 t ERW t ELW VIH1 ∗ CY2 CY1 CY0 Control register D CE HD/SFT 24/12 CAL D⋅P Control register E Same as BANK 0 D0 to D3 VIL1 VIL t ED t RD CD CF VIL1 t EC BANK 1 D3 a-S8 ∗ a-mi8 ∗ a-h8 VIL VOH1 VOH1 VOL1 VOL1 t EC Control register F 80