em3027 EM Microelectronic, em3027 Datasheet - Page 6

• Manufacturer Part Number: em3027
• Description: Real-time Clock With I2c Or Spi Interface, Crystal Temperature Compensation, Battery Switchover And Trickle Charger
• Manufacturer: EM Microelectronic

4.1
4.2
Copyright © 2008, EM Microelectronic-Marin SA
07/08 – rev B
4
SCL/SCK
CLKOE
SDA/SO
V
V
V
EM 3027 Block Diagram and Application Schematic
Block Diagram
Application Schematic
Back
X1
X2
CS
cc
ss
SI
32.768 kHz
R
Oscillator
Stages
Inputs
Xtal
Switch over
V
High
SDA/SO
Prescaler
Regulator
Voltage
Buffers
Control
Output
INT
I2C
SPI
CLKOUT
6
Crystal Layout Example
Thermometer
Monitoring
EEPROM
Voltage
RAM
RTC
www.emmicroelectronic.com
EM3027
X1
X2
V
V
REG
SS
= 0V