em3027 EM Microelectronic, em3027 Datasheet - Page 3

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

Copyright © 2008, EM Microelectronic-Marin SA
07/08 – rev B
1
V
V
V
Back
Back
Vss
X2
X1
Reg
Vss
INT
X2
SI
X1
Packages / Pin Out Configuration
SO8-TSSOP8
EM3027
R
I2C
EM3027
TSSOP14
SPI
Vcc
SCL
IRQ/CLKOUT
SDA
CLKOUT
V
SO
CLKOE
CS
SCK
NC
CC
Table 1
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Table 2
3
Pin
1
2
3
4
5
6
7
8
Name
X1
X2
SI
V
V
V
SO
SCK
CS
CLKOUT
V
CLKOE
NC
INT
Reg
Back
SS
CC
Name
X1
X2
V
V
SDA
SCL
IRQ/CLKOUT
V
Back
SS
CC
Function
32.768 kHz crystal input
32.768 kHz crystal output
Serial Data Input for SPI transfer
Regulated Voltage – Reserved for test
purpose only (This output is left
unconnected)
Backup Supply Voltage
Interrupt Request
(Open Drain active low)
Ground Supply
Serial Data Output for SPI transfer
Serial Clock for SPI transfer
Chip select input for SPI
Clock Output
Main Supply Voltage
Clock Output Enable
CLKOE = ‘0’ CLKOUT is disabled,
CLKOUT is low
CLKOE = ‘1’ CLKOUT is enabled,
CLKOUT is output
Not Connected
Function
32.768 kHz crystal input
32.768 kHz crystal output
Backup Supply Voltage
Ground Supply
Serial Data
Serial Clock
Interrupt Request /Clock Output
Positive Supply
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EM3027