RX-8801JE:UA3ROHS

Epson Toyocom Real time clock module Product Number (Please contact us) RX-8801SA : X1B000011xxxx00 RX-8801JE : X1B000031xxxx00 Built-in 32.768 kHz-DTCXO, High Stability I2C-Bus INTERFACE REAL TIME CLOCK MODULE RX - 8801 SA / JE •Built in frequency adjusted 32.768 kHz crystal unit and DTCXO. •Interface Type : I2C-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 •32.768 kHz frequency output function : C-MOS output With Control Pin •The various functions include full calendar, alarm, timer. Actual size ct RX-8801JE RX-8801SA 2 * The I C-Bus is a trademark of NXP Semiconductors Overview od u Block diagram • High Stability •UA 0 ºC to +40 ºC ± 1.9 x 10-6 / ( Equivalent to 5 seconds of month deviation ) -6 ± 3.4 x 10 / -40 ºC to +85 ºC ( Equivalent to 9 seconds of month deviation ) •UB 0 ºC to +50 ºC ± 3.8 x 10-6 / ( Equivalent to 10 seconds of month deviation ) ± 5.0 x 10-6 / -40 ºC to +85 ºC ( Equivalent to 13 seconds of month deviation ) 32.768 kHz CLOCK and CALENDAR DIVIDER FOUT FOUT CONTROLLER TIMER REGISTER INTERRUPT CONTROLLER ALARM REGISTER • 32.768 kHz frequency output function • FOUT pin output (C-MOS output), CL=30 pF • Output selectable < 32.768 kHz, 1024 Hz, 1 Hz > co nt in ue d FOE pr 32kHz DTCXO / INT • The various interrupt • Timer Function can be set up between 1/ 4096 second and 255 minutes. • Alarm Function can be set to day of week, day, hour, or minute. CONTROL REGISTER SCL INTERFACE CIRCUIT SDA and SYSTEM CONTROLLER *It is possible to use it by the terminal connection as 32.768 kHz-DTCXO. Pin Function TEST VDD FOE / INT GND input input Output - T1(CE) 2. SCL 3. FOUT 4. N.C. TEST 6. VDD 7. 7.4 ± 0.2 FOE SDA I/O 13. SDA 3. T2(V PP) 12. T2(VPP) 4. SDA 5. 11. GND 6. 10. / INT 7. SCL 9. N.C. 8. FOUT 9. N.C. 10. FOE 8. N.C. ∗3 ) N.C. 17. N.C. N.C. 16. N.C. T1(CE) 15. N.C. 14. N.C. 5.4 1.5 Max. 6.0 ± 0.2 13. N.C. 12. N.C. 11. V DD ∗ Refer to application manual for details. Typ. 3.0 Max. 5.5 Unit V VTEM Temp. compensated voltage 2.2 3.0 5.5 V VCLK TOPR - 1.6 −40 3.0 +25 ±1.9 ∗1 5.5 +85 V ºC IBK2 Ta = 0 ºC to +50 ºC ±3.4 ∗2 ±3.8 ∗3 Ta = -40 ºC to +85 ºC ±5.0 ∗4 Ta = -40 ºC to +85 ºC Δf/f IBK1 Ta = 0 ºC to +40 ºC Backup Mode VDD = 5V FOE = GND, /INT = VDD VDD = 3V FOUT output : OFF Equivalent to 5 seconds of month deviation. Equivalent to 10 seconds of month deviation. ∗2 ) ∗4 ) × 10 −6 - 1.2 3.4 - 0.8 2.1 Equivalent to 9 seconds of month deviation. Frequency temperature characteristics 10 5 32.768 kHz DTCXO -6 Min. 1.6 Frequency tolerance ( ×10 ) D ∗1 ) N.C. 18. Metal may be exposed on the top or bottom of this product. This will not affect any quality, reliability or electrical spec. Condition Interface voltage UB Current consumption (2) N.C. 19. „ 32.768 kHz-DTCXO Frequency temperature characteristics (Example) Symbol VDD UA Current consumption (1) 20. VSOJ − 20 pin Specifications (characteristics) Stability GND N.C. SOP − 14 pin „ Electrical Characteristics Item Interface voltage Temp. compensated Voltage Clock voltage Operating temperature 2. 14. 5.0 5. / INT 0.65 1. is T2(VPP) Output RX−8801JE 1. 7.0 ± 0. 3 FOUT input * Use by the manufacture for testing. ( Do not connect externally.) Serial clock input pin The pin outputs the reference clock signal. ( CMOS output ) * Use by the manufacture for testing. ( Do not connect externally.) Connected to a positive power supply The input pin for the FOUT output control. Interrupt output ( N-ch open drain ) Connected to a ground * Use by the manufacture for testing. ( Do not connect externally.) Data input and output pin 10.1 ± 0.2 SCL input (Unit:mm) RX − 8801 SA Function 3.2 ± 0.1 T1(CE) I/O 1.27 Signal Name Terminal connection / External dimensions μA 0 -5 -10 -15 Tuning fork X'tal -20 -25 -30 Equivalent to 13 seconds of month deviation. http://www.epsontoyocom.co.jp -45 -35 -25 -15 -5 5 15 25 Temperature (ºC) 35 45 55 65 75 85