New Product 4-wire serial interface high-stability RTC module RX –4045 SA Preliminary Product number:Q4140455xxxxx00 • Built in frequency adjusted 32.768 kHz crystal unit. • Serial interface which can be controlled by 4 or 3 signal lines. • Dual Alarm and Timer IRQ function are Available. • 32.768 kHz clock frequency output. (FOUT) • Low backup current : 0.48 µA / 3 V ( Typ.) • Wide operating voltage range : 1.7 V to 5.5 V Wide timekeeper voltage range : 1.15 V to 5.5 V • Available as small package.( SOP-14pin ) ■ Block Diagram Comparator_W 32 kHz Output Control FOUT Alarm_W Register ( Min,Hour,Week ) VDD Voltage Detect Comparator_D Divider Correc -tion OSC Div. Time Counter ( Sec,Min,Hour,Week,Day,Month,Year ) Address Decoder OSC Detect Alarm_D Register ( Min,Hour ) CLK Address Register DI I/O Control DO CE / INT Interrupt Control Shift Register GND ■ Pin Assignment ■ Pin Descriptions Terminal RX - 4045 SA Pin No. CLK 2 FOUT 3 Pin Assignment 10.1 #14 #8 5.0 7.4 #1 #7 1. N.C. 2. CLK 3. FOUT 4. N.C. 5. TEST 6. VDD 7. CE 14. N.C. 13. DO 12. DI 11. GND 10. /INT 9. N.C. 8. N.C. Descriptions Serial clock input 32.768 kHz output (Nch open drain) TEST 5 TEST terminal VDD 6 CE 7 VDD Chip enable /INT 10 Interrupt output (Nch open drain) GND 11 GND DI 12 DO 13 Data input Data output 3.2 1.27 0.35 Preliminary 2002.8 Ver.0.1 New Product ■ Specifications 1. Operating range Item Symbol Supply voltage Data holding voltage Operating temperature range VDD VCLK TOPR Condition Min. 1.70 1.15 -40 Max. 5.5 5.5 +85 Unit V V °C 2. Frequency characteristics Item Symbol Condition Frequency tolerance Frequency temperature characteristics f / fo Ta=+25 °C , VDD=3.0 V Ta=-10 ~ +70 °C , VDD=3.0 V Aging fa Ta=+25 °C, VDD=3.0 V, First year Max. 5±5 +10 / -120 Unit -6 X 10 -6 X 10 ±5 X 10 -6 3. DC characteristics Item Symbol Condition Current consumption IDD Output=Open, VDD=3 V Backup mode VDD detect voltage (High) VDD detect voltage (Low) VDETH VDETL Ta = +25 °C Ta = +25 °C Min. Typ. 0.48 Max. 1.2 Unit µA 1.90 1.15 2.10 1.30 2.30 1.45 V V ■ Register table Address 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F Item SEC. MIN. HOUR bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 - S40 M40 S10 M10 S8 M8 S4 M4 S2 M2 S1 M1 - - H10 H8 H4 H2 H1 WEEK DAY MONTH YEAR 20/19 Y80 0 Y40 F6 S20 M20 H20 P/A D20 Y20 F5 D10 MO10 Y10 F4 D8 MO8 Y8 F3 W4 D4 MO4 Y4 F2 W2 D2 MO2 Y2 F1 W1 D1 MO1 Y1 F0 - WM40 WM20 WM10 WM8 WM4 WM2 WM1 - - WH20 WP/A WH10 WH8 WH4 WH2 WH1 - WW6 WW5 WW4 WW3 WW2 WW1 WW0 - DM40 DM20 DM10 DM8 DM4 DM2 DM1 - - DH10 DH8 DH4 DH2 DH1 WALE VDSL DALE VDET /CLEN2 PON TEST /CLEN1 CT2 CTFG CT1 WAFG CT0 DAFG Digital offset Alarm_W ( MIN. ) Alarm_W ( HOUR ) Alarm_W ( WEEK ) Alarm_D ( MIN. ) Alarm_D ( HOUR ) Control register1 Control register 2 DH20 DP/A 24/12 /XST RX-4045 Preliminary 2002.8 Ver 0.1 New Product NOTICE • The material is subject to change without notice. • Any part of this material may not be reproduced or duplicated in any form or any means without the written permission of Seiko Epson. • The information, applied circuit, program, using way etc., written in this material is just for reference. Seiko Epson does not assume any liability for the occurrence of infringing any patent or copyright of third party. This material does not authorize the licence for any patent or intellectual property rights. • Any product described in this material may contain technology or the subject relating to strategic prodects under the control of the Foreign Exchange and Foreign Trade Law of Japan and may require an export licence from the Ministry of international Trade and industry or other approval from another government agency. • The products(except for some product for automotive applications) listed up on this material are designed to be used with ordinary electronic equipment(OA equipment, AV equipment,communications equipment, measuring instruments etc). Seiko Epson does not assume any liability for the case using the products with the application required high reliability or safety extremely (such as aerospace equipment etc). When intending to use any our product with automotive application and the other application than ordinary electric equipments as above, please contact our sales representatives in advance. © SEIKO EPSON CORPORATION 2003 ELECTRONIC DEVICE MARKETING DEPARTMENT EPSON ELECTRONICS AMERICA, INC. 150 River Oaks Parkway, San Jose, CA 95134, U.S.A. Phone: (1)800-228-3964 (Toll free) : (1)408-922-0200 Fax: (1)408-922-0238 EPSON EUROPE ELECTRONICS GmbH Riesstrasse 15, 80992 Munich, Germany Phone: (49)-(0)89-14005-0 Fax: (49)-(0)89-14005-110 EPSON (CHINA) CO., LTD. 23F, Beijing Silver Tower 2# North RD DongSangHuan ChaoYang District, Beijing, China Phone: (86) 10-6410-6655 Fax: (86) 10-6410-7319 Electronic devices information on WWW server EPSON HONG KONG LTD. 20/F., Harbour Centre, 25 Harbour Road, Wanchai, Hong kong http://www.epsondevice.com Phone: (852) 2585-4600 Fax: (852) 2827-2152 EPSON TAIWAN TECHNOLOGY & TRADING LTD. 14F, No.7, Song Ren Road, Taipei 110 Phone: (886) 2-8786-6688 Fax: (886) 2-8786-6660 EPSON SINGAPORE PTE. LTD. No.1, Temasek Avenue #36-00, Millenia Tower, Singapore 039192 Phone: (65) 337-7911 Fax: (65) 334-2716 SEIKO EPSON CORPORATION KOREA Office 50F, KLI 63 Building,60 Yoido-dong, Youngdeungpo-Ku, Seoul, 150-763, Korea Phone: (82) 2-784-6027 Fax: (82) 2-767-3677 RX-4045 Preliminary 2002.8 Ver 0.1