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RX-4571LC Datasheet(PDF) 1 Page - Epson ToYoCom |
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RX-4571LC Datasheet(HTML) 1 Page - Epson ToYoCom |
1 / 2 page Actual size http://www.epsontoyocom.co.jp Real time clock module Real time clock module Real time clock module Real time clock module Epson Toyocom Epson Toyocom Epson Toyocom Epson Toyocom Block diagram Overview BUS INTERFACE CIRCUIT 32.768 kHz CONTROL REGISTER ALARM REGISTER TIMER REGISTER CLOCK and CALENDAR INTERRUPTS CONTROLLER FOUT CONTROLLER DIVIDER CO NTRO L LINE FOUT / IRQ CLK DIO CE OSC SYSTEM CONTROLLER FOE and •••• 32.768 kHz frequency output function • FOUT pin output ( C-MOS output ) , CL=30 pF •••• Timer function • Timer function which can be set up between 1/4096 second and 4095 minutes. •••• Alarm function • Alarm function can be set to any combination of day, day of week, hour, or minute. •••• Pin Function Signal Name Input / Output Function CE Input The chip enabled input pin 0. ( It has a built -in pull-down resistance ) CLK Input The shift clock input pin for serial data transfer. DIO Bi-directional The data input / output pin for serial data transfer. FOUT Output FOE Input 32.768 kHz clock output pin with the output control function. ( C-MOS ) FOE pin control the condition of FOUT with FSEL1-bit, FSEL0-bit, etc. / IRQ Output Interrupt output ( N-ch open drain ) VDD - Connected to a positive power supply. GND - Connected to a ground. Terminal connection / External dimensions (Unit:mm) RX − 4571 LC 1. FOE 12. VDD 2. N.C. 11. N.C. 3. DIO 10. N.C. 4. CLK 9. N.C. 5. CE 8. /IRQ 6. GND 2.4 2.8 7. FOUT VSOJ − 12pin RX − 4571 NB 1. FOE 22. N.C. 2. DIO 21. N.C. 3. (GND) 20. N.C. 4. CLK 19. N.C. 5. CE 18. N.C. 6. GND 17. N.C. 7. N.C. 16. N.C. 8. N.C. 15. N.C. 9. FOUT 14. N.C. 10. /IRQ 13. − 11. VDD 4.8 5.0 ± 0.2 1.3 ± 0.1 12. − SON − 22 pin RX − 4571 SA 1. GND 14. FOUT 2. N.C. 13. N.C. 3. CE 12. N.C. 4. CLK 11. N.C. 5. DIO 10. / IRQ 6. N.C. 9. N.C. 7. FOE 5.0 7.4 ± 0.2 8. VDD SOP - 14 pin Metal may be exposed on the top or bottom of this product. This w ill not affect any quality, reliability or electrical spec. Specifications (characteristics) ∗ Refer to application manual for details. ! ! ! ! Recommended Operating Conditions Item Symbol Condition Min. Typ. Max. Unit Power voltage VDD − 1.6 3.0 5.5 V Ta = +25 °C 1.0 3.0 5.5 V Clock voltage VCLK Ta = −40 to +85 °C 1.1 3.0 5.5 V Operating temperature TOPR − −40 +25 +85 °C ! ! ! ! Frequency characteristics Item Symbol Condition Rating Unit Frequency tolerance ∆ f / f Ta = +25 °C VDD = 3.0 V 5 ± 23 * × 10 −6 Oscillation start-up time tSTA Ta = +25 °C VDD = 1.6 V 1 Max. s * Please ask for tighter tolerance. (Equivalent to 1 minute of monthly deviation) ! ! ! ! Current consumption characteristics Ta = −40 °C to +85 °C Symbol Condition Min. Typ. Max. Unit VDD = 5 V 0.40 1.00 IBK CE = GND /IRQ = OFF FOUT ; output OFF ( Hi - z ) VDD = 3 V 0.32 0.95 µA VDD = 5 V 8.0 14.0 I32k CE = GND /IRQ = OFF FOUT ; 32.768 kHz output ON CL = 30 pF VDD = 3 V 5.0 8.5 µA LOW BACKUP VOLTAGE SERIAL-INTERFACE REAL TIME CLOCK MODULE RX - 4571 LC / NB / SA •Built in frequency adjusted 32.768 kHz crystal unit. •Interface Type : 3-wire serial i nte rface •Operating voltage range : 1.6 V to 5.5 V •Wide Timekeeper voltage range : 1.0 V to 5.5 V / Ta = +25 °C •Low backup current : 0.32 µA ( Typ. ) / 3 V •32.768 kHz frequency output function : C-MOS output With Control Pin •Real-time clock function Clock/cale ndar function, a uto leap yea r correction functio n, alarm i nte rrupt functio n, etc. RX-4571NB RX-4571SA RX-4571LC Product Number (Please contact us ) RX-4571LC : Q414571C1000100 RX-4571NB : Q41457191000100 RX-4571SA : Q41457151000100 |
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