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RX8900SA

EPSON
Part Number RX8900SA
Manufacturer EPSON
Description REAL TIME CLOCK MODULE
Published Nov 18, 2019
Detailed Description Real time clock module REAL TIME CLOCK MODULE (I2C-Bus) Built-in 32.768 kHz-DTCXO, High Stability and Power Switching RX...
Datasheet PDF File RX8900SA PDF File

RX8900SA
RX8900SA

Overview
Real time clock module REAL TIME CLOCK MODULE (I2C-Bus) Built-in 32.
768 kHz-DTCXO, High Stability and Power Switching RX 8900 SA/CE CE Product Number (Please contact us) RX8900SA : X1B000292xxxx00 RX8900CE UA : X1B000301000100 RX8900CE UB : X1B000301000200 RX8900CE UC : X1B000301000300 •Built in frequency adjusted 32.
768 kHz crystal unit and DTCXO.
•Interface Type : I2C-Bus interface (400kHz) •Interface voltage range : 2.
5 V to 5.
5 V •Temp.
compensated voltage range : 2.
0 V to 5.
5 V •Clock supply voltage range : 1.
6 V to 5.
5 V •Selectable clock output (32.
768 kHz, 1024 Hz, 1 Hz) Actual size •The various functions include full calendar, alarm, timer, temp.
sensor function.
.
Epson prepared Linux driver for development.
RX8900SA (http://www5.
epsondevice.
com/en/information/support/linux_rtc/) The registered trademark Linux® is used pursuant to a sublicense from LMI(Linux Mark Institute) The I2C-Bus is a trademark of NXP Semiconductors.
RX8900SA (10.
1 × 7.
4 × 3.
3 mm) RX8900CE RX8900CE (3.
2 × 2.
5 × 1.
0 mm) Block diagram VDD VDD Detector Battery backup connection example (1) VBAT R primary battery C VBAT Battery backup connection example (2) VBAT R EDLC or secondary battery C Register Control (System Control) DTCXO Divider Bus Interface Alarm Register Timer Register Interrupts Controller Clock and Calender FOUT Controller GND LVEL SHIFTER FOE SCL SDA FOUT /INT Overview •High Stability •UA ± 3.
4 x 10-6 / -40 ºC to +85 ºC ( Equivalent to ±9 seconds of month deviation ) •UB ± 5.
0 x 10-6 / -40 ºC to +85 ºC ( Equivalent to ±13 seconds of month deviation ) •UC ± 5.
0 x 10-6 / -30 ºC to +70 ºC ( Equivalent to ±13 seconds of month deviation ) • 32.
768 kHz frequency output function • FOUT pin output (C-MOS output), CL=30 pF • Output selectable: 32.
768 kHz, 1024 Hz, 1 Hz •Available automatic battery backup switch-over function Charge from VDD to backup battery connected to VBAT is possible.
VDD voltage drop(VDET3) detection and automatical...


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