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S-35390A PDF даташит

Спецификация S-35390A изготовлена ​​​​«Seiko» и имеет функцию, называемую «2-WIRE REAL-TIME CLOCK».

Детали детали

Номер произв S-35390A
Описание 2-WIRE REAL-TIME CLOCK
Производители Seiko
логотип Seiko логотип 

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S-35390A Даташит, Описание, Даташиты
S-35390A
www.sii-ic.com
© SII Semiconductor Corporation, 2004-2016
2-WIRE REAL-TIME CLOCK
Rev.4.2_02
The S-35390A is a CMOS 2-wire real-time clock IC which operates with the very low current consumption in the wide range of
operation voltage. The operation voltage is 1.3 V to 5.5 V so that the S-35390A can be used for various power supplies from
main supply to backup battery. Due to the 0.25 μA current consumption and wide range of power supply voltage at time
keeping, the S-35390A 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.
The S-35390A has the function to correct advance / delay of the clock data speed, in the wide range, which is caused by the
crystal oscillation circuit's frequency deviation. Correcting according to the temperature change by combining this function
and a temperature sensor, it is possible to make a high precise clock function which is not affected by the ambient
temperature.
Features
Low current consumption:
0.25 μA typ. (VDD = 3.0 V, Ta = +25°C)
Wide range of operating voltage:
1.3 V to 5.5 V
Built-in clock correction function
Built-in free user register
2-wire (I2C-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 (built-in Cd, external Cg)
Lead-free, Sn 100%, halogen-free*1
*1. Refer to "Product Name Structure" for details.
Applications
Mobile game device
Mobile AV device
Digital still camera
Digital video camera
Electronic power meter
DVD recorder
TV, VCR
Mobile phone, PHS
Packages
8-Pin SOP (JEDEC)
8-Pin TSSOP
SNT-8A
1









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S-35390A Даташит, Описание, Даташиты
2-WIRE REAL-TIME CLOCK
S-35390A
Block Diagram
Rev.4.2_02
XIN
XOUT
Oscillation
circuit
Divider,
timing generator
VDD
VSS
Clock correction register
Status register 1
Status register 2
Free register
Low power supply
voltage detector
Power-on
detection circuit
Constant-voltage
circuit
INT1 register
INT1
controller
Comparator 1
Real-time data register
Second Minute
Hour
Day of
the week
Day
Month
Year
Comparator 2
INT2 register
Shift register
INT2
controller
Serial
interface
Figure 1
INT1
INT2
SDA
SCL
2









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S-35390A Даташит, Описание, Даташиты
Rev.4.2_02
2-WIRE REAL-TIME CLOCK
S-35390A
Product Name Structure
1. Product name
1. 1 8-Pin SOP (JEDEC), 8-Pin TSSOP
S-35390A - xxxx x
Environmental code
U: Lead-free (Sn 100%), halogen-free
G: Lead-free (for details, please contact our sales office)
Package name (abbreviation) and IC packing specification*1
J8T1: 8-Pin SOP (JEDEC), Tape
T8T1: 8-Pin TSSOP, Tape
Product name
*1. Refer to the tape drawing.
1. 2 SNT-8A
S-35390A - I8T1 U
Environmental code
U: Lead-free (Sn 100%), halogen-free
Package name (abbreviation) and IC packing specification*1
I8T1: SNT-8A, Tape
Product name
*1. Refer to the tape drawing.
2. Packages
Table 1 Package Drawing Codes
Package Name
8-Pin SOP (JEDEC)
Environmental code = G
Environmental code = U
8-Pin TSSOP
Environmental code = G
Environmental code = U
SNT-8A
Dimension
FJ008-A-P-SD
FJ008-A-P-SD
FT008-A-P-SD
FT008-A-P-SD
PH008-A-P-SD
Tape
FJ008-D-C-SD
FJ008-D-C-SD
FT008-E-C-SD
FT008-E-C-SD
PH008-A-C-SD
Reel
FJ008-D-R-SD
FJ008-D-R-S1
FT008-E-R-SD
FT008-E-R-S1
PH008-A-R-SD
Land
PH008-A-L-SD
3










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