S-35190A datasheet, PDF - EEWORLD Datasheet

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S-35190A: Description3-wire real-time clock; Categoryaccessories; File Size773KB，53 Pages; ManufacturerAll Sensors; Environmental Compliance

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S-35190A Overview

3-wire real-time clock

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Rev.2.4

_00

3-WIRE REAL-TIME CLOCK

S-35190A

The S-35190A is a CMOS 3-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 0.25

µA

current consumption and wide range of power supply voltage at time

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 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. (V

3.0 V, Ta

25°C)

Wide range of operating voltage :

1.3 to 5.5 V

Built-in clock-correction function

Built-in free user register

3-wire (MICROWIRE) 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

built in, C

external)

Package : 8-Pin SOP (JEDEC), 8-Pin TSSOP, SNT-8A

Lead-free product

Applications

•

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

Package Name

8-Pin SOP (JEDEC)

8-Pin TSSOP

SNT-8A

Drawing Code

Package

FJ008-A

FT008-A

PH008-A

Tape

FJ008-D

FT008-E

PH008-A

Reel

FJ008-D

FT-008E

PH008-A

Land

−

PH008-A

Seiko Instruments Inc.

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