Real time clock module Epson Toyocom Product Number (Please contact us) RX-8801SA : X1B000011xxxx00 Built-in 32.768 kHz-DTCXO, High Stability RX-8801JE : X1B000031xxxx00 2 I C-Bus INTERFACE REAL TIME CLOCK MODULE RX - 8801 SA / JE Built in frequency adjusted 32.768 kHz crystal unit and DTCXO. 2 Interface Type : I C-Bus Interface (400 kHz) Interface voltage range : 1.6 V to 5.5 V Temp.compensated voltage range: 2.2 V to 5.5 V Wide Timekeeper voltage range : 1.6 V to 5.5 V Actual size 32.768 kHz frequency output function : C-MOS output With Control Pin The various functions include full calendar, alarm, timer. RX-8801JE RX-8801SA 2 * The I C-Bus is a trademark of NXP Semiconductors Block diagram Overview High Stability UA 32.768 kHz -6 1.9 x 10 / 0 C to +40 C ( Equivalent to 5 seconds of month deviation ) 32kHz -6 3.4 x 10 / -40 C to +85 C DTCXO ( Equivalent to 9 seconds of month deviation ) UB -6 3.8 x 10 / 0 C to +50 C ( Equivalent to 10 seconds of month deviation ) CLOCK -6 5.0 x 10 / -40 C to +85 C DIVIDER and CALENDAR ( Equivalent to 13 seconds of month deviation ) FOUT FOUT TIMER 32.768 kHz frequency output function CONTROLLER REGISTER FOE FOUT pin output (C-MOS output), CL=30 pF Output selectable < 32.768 kHz, 1024 Hz, 1 Hz > INTERRUPT ALARM / INT CONTROLLER REGISTER The various interrupt Timer Function can be set up between CONTROL REGISTER 1/ 4096 second and 255 minutes. SCL INTERFACE and Alarm Function can be set to day of week, CIRCUIT SDA SYSTEM day, hour, or minute. CONTROLLER *It is possible to use it by the terminal connection as 32.768 kHz-DTCXO. Pin Function Terminal connection / External dimensions (Unit:mm) RX8801JE Signal RX 8801 SA I / O Function Name 1. / INT 20.N.C. 1.T1(CE) 14. N.C. * Use by the manufacture for testing. 2.GND 19.N.C. T1(CE) input ( Do not connect externally.) 2.SCL 13.SDA 3. T2(VPP) 18.N.C. SCL input Serial clock input pin 4.SDA 17.N.C. The pin outputs the reference clock signal. 3.FOUT 12.T2(VPP) FOUT Output ( CMOS output ) 5.N.C. 16.N.C. 4.N.C. 11.GND * Use by the manufacture for testing. 6.T1(CE) 15.N.C. TEST input 5.0 ( Do not connect externally.) 5.4 5.TEST 10. / INT 7.SCL 14.N.C. VDD - Connected to a positive power supply FOE input The input pin for the FOUT output control. 8.FOUT 131.5 MaxN.C. 6. VDD 9.N.C. / INT Output Interrupt output ( N-ch open drain ) 9.N.C. 12.N.C. 7.4 0.2 GND - Connected to a ground 7. FOE 8. N.C. 6.0 0.2 10. FOE 11. VDD * Use by the manufacture for testing. T2(VPP) - SOP 14 pin ( Do not connect externally.) VSOJ 20 pin SDA I / O Data input and output pin Metal may be exposed on the top or bottom of this product. This will not affect any quality, reliability or electrical spec. Specifications (characteristics) Refer to application manual for details. Electrical Characteristics 32.768 kHz-DTCXO Frequency temperature characteristics (Example) Item Symbol Condition Min. Typ. Max. Unit Interface voltage VDD Interface voltage 1.6 3.0 5.5 V Frequency temperature characteristics Temp. compensated VTEM Temp. compensated voltage 2.2 3.0 5.5 V 10 Voltage Clock voltage VCLK - 1.6 3.0 5.5 V 5 32.768 kHz DTCXO Operating temperature TOPR - 40 +25 +85 C 0 1 Ta = 0 C to +40 C 1.9 UA 2 -5 Ta = -40 C to +85 C 3.4 6 Stability f / f 10 3 Ta = 0 C to +50 C -10 3.8 UB 4 Ta = -40 C to +85 C -15 5.0 Tuning fork X tal Current consumption (1) Backup Mode IBK1 VDD = 5V - 1.2 3.4 -20 FOE = GND, A /INT = VDD -25 Current consumption (2) IBK2 VDD = 3V - 0.8 2.1 FOUT output : OFF -30 1 ) 2 ) Equivalent to 5 seconds of month deviation. Equivalent to 9 seconds of month deviation. -45 -35 -25 -15 -5 5 15 25 35 45 55 65 75 85 3 ) 4 ) Equivalent to 10 seconds of month deviation. Equivalent to 13 seconds of month deviation. Temperature (C) X-ON Electronics Largest Supplier of Electrical and Electronic Components Click to view similar products for Real Time Clock category: Click to view products by Epson manufacturer: Other Similar products are found below : DS1302Z-LF 710029X 879047C 405800G PT7C43390LE RV-3029-C2-32.768k-OPTION-B-TB-QA RV-2123-C2-32.768k-20PPM-TA-QA RV-3029-C2-32.768k-OPTION-A-TB-QA PT7C4563UEX RV-3029-C3-32.768k-OPTION-A-TB-QA RV-2123-C2-32.768kHz-20PPM-TA- QC RX-4035LC:B3 PURE SN RX-8564LC:B PURE SN RX-8803LCUB PURE SN BULK BQ32002D RTC-8564JE MCP7940M-I/P DS3231SN T&R DS1391U-18+ DS1347T+T&R RX-8564LC:B3 PURE SN DS1338Z-33+T RX-4571SA:B3 PURE SN DS1340U-33+T&R RX-8571LC:B3 PURE SN S-35190A-J8T1U RTC-4543SAB RTC-72421A RX-8803LC:UB3 PURE SN S-35390A-T8T1 AB1815-T3 AB- RTCMC-32.768kHz-AIGZ-S7-T AB-RTCMC-32.768kHz-B5GA-S3-T AB-RTCMC-32.768kHz-B5ZE-S3-T AB-RTCMC-32.768kHz-EOA9- S3-D-B-T AB-RTCMC-32.768kHz-EOZ9-S3-D-B-T AB-RTCMC-32.768KHZ-EOZ9-S3-HAT AB-RTCMC-32.768kHz-ZIZE-S2-T DS1672U-33+ DS1337U+T&R DS1339AU+ FM33256B-G DS1673E-5-LF DS1672U-3+ DS1672U-33+T&R HYM1307N HYM1302 HYM1302N PCF8563N DS1302N