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S-35399A02-HRT1

Description
Real Time Clock 2WIRE REAL TIME CLCK
Categorysemiconductor    Analog mixed-signal IC   
File Size2MB,56 Pages
ManufacturerABLIC
Environmental Compliance
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Real Time Clock 2WIRE REAL TIME CLCK

S-35399A02-HRT1 Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerABLIC
Product CategoryReal Time Clock
RoHSDetails
Package / CaseWLP-12A-12
PackagingReel
ProductReal Time Clocks
Factory Pack Quantity3000
S-35399A02
www.sii-ic.com
© Seiko Instruments Inc., 2007-2010
2-WIRE REAL-TIME CLOCK
Rev.2.0
_00
Features
Mobile game devices
Mobile AV devices
Digital still cameras
Digital video cameras
Electronic power meters
DVD recorders
TVs, VCRs
Mobile phones, PHS
Car navigation
Package
WLP-12A
DI
S
CO
Applications
NT
IN
UE
D
Low current consumption :
0.34
μA
typ. (V
DD
= 3.0 V, Ta = 25°C)
25
Wide range of operating voltage :
1.3 to 5.5 V
Built-in clock-correction function
Clock pulse output (CMOS output, function to select frequency)
32.768 kHz clock pulse output (Nch open-drain, output control pin)
Built-in 24-bit binary up counter
Built-in free user register
2-wire (I
2
C-bus) CPU interface
Built-in alarm interrupter
Built-in flag generator during detection of low power voltage or at power-on
Auto calendar up to the year 2099, automatic leap year calculation function
Built-in constant voltage circuit
Built-in 32.768 kHz crystal oscillator (C
d
built in, C
g
external)
Lead-free, halogen-free
Seiko Instruments Inc.
PR
OD
UC
T
The S-35399A02 is a CMOS 2-wire real-time clock IC which operates with the very low current consumption and in the wide
range of operation voltage. The operation voltage is 1.3 V to 5.5 V so that this IC can be used for various power supplies from
main supply to backup battery. Due to the 0.34
μA
current consumption and wide range of power supply voltage at time
A
keeping, this IC makes the battery life longer. In the system which operates with a backup battery, the included free registers
can be used as the function for user’s backup memory. Users always can take back the information in the registers which is
stored before power-off the main power supply, after the voltage is restored.
This IC has the function to correct advance/delay of the clock data speed, in the wide range, which is caused by the oscillation
oscillatio
circuit’s frequency deviation. Correcting according to the temperature change by combining this function and a temperature
mperature
th
sensor, it is possible to make a high precise clock function which is not affected by the ambient temperature. This IC has the
h
function for the external microcomputer’s sub clock to output the 32.768 kHz clock pulse. And for this output, users can select
either of Nch open drain or CMOS.
Moreover, this IC has a 24-bit binary up counter. This counter counts up every 60 sec from power-on so that users are able to
grasp the elapsed time from power-on up to 30 years.
1

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