PT7C43190LEX

PT7C43190LEX Datasheet

PT7C43190

Part	Datasheet
PT7C43190LEX	PT7C43190LEX (pdf)

Related Parts	Information
PT7C43190LE	PT7C43190LE

PDF Datasheet Preview
PT7C43190 Real-time Clock Module  Low current consumption 0.3µA typ. VDD=3.0V, TA = 25°C  Wide operating voltage range to V  Minimum time keeping operation voltage V  Built-in clock adjustment function  Built-in free user register  3-wire micro wire CPU interface  Built-in alarm interrupter  Built-in flag generator at power down or power on  Auto calendar up to the year 2099, automatic leap year calculation function  Built-in constant voltage circuit  Built-in 32 kHz crystal oscillator circuit  Package SOIC-8L, TSSOP-8L, and TDFN2x3-8L The PT7C43190 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 V to V so that the RTC can be used for various power supplies from main supply to backup battery. 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 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. Function Table Item Function 1 Oscillator Source Crystal* 2 Time Time display 12-hour 24-hour Interrup Alarm interrupt pin output Timer interrupt output Programmable square wave output 4 Commu 3-wire bus 5 nication Burst mode IC test mode 6 Control Power-on detector Power supply voltage detector 7 Clock calibration 80 Free register access PT7C43190    2  1Hz,2Hz,4Hz 8Hz,16Hz 32kHz        Mobile game device  Digital still camera  Digital video camera  Electronic power meter  DVD recorder  TV, VCR  Mobile phone, PHS Pin Configuration PT7C43190 1 INT VDD 8 2 XOUT SIO 7 3 XIN SCK 6 4 VSS SOIC-8 TSSOP-8 DFN2*3 2015-09-0015 PT0274-7 10/16/15 1 Pin Description Pin No. Pin Name Type Ordering Information Part No. PT7C43190LE PT7C43190LEX PT7C43190WE PT7C43190WEX PT7C43190ZEE Note E = Pb-free and Green Adding X Suffix= Tape/Reel Package Code L W ZE Package Lead free and Green 8-pin TSSOP Lead free and Green 8-pin TSSOP Tape/Reel Lead free and Green 8-pin SOIC Lead free and Green 8-pin SOIC Tape/Reel Lead free and Green 8-pin TDFN2x3 Pericom Semiconductor Corporation  1-800-435-2336  Pericom reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply the best possible product. Pericom does not assume any responsibility for use of any circuitry described other than the circuitry embodied in Pericom product. The company makes no representations that circuitry described herein is free from patent infringement or other rights, of Pericom. 2015-09-0015 PT0274-7 10/16/15 32

PDF Datasheet Preview

PT7C43190

Real-time Clock Module
 Low current consumption 0.3µA typ. VDD=3.0V, TA = 25°C
 Wide operating voltage range to V  Minimum time keeping operation voltage V  Built-in clock adjustment function  Built-in free user register  3-wire micro wire CPU interface  Built-in alarm interrupter  Built-in flag generator at power down or power on  Auto calendar up to the year 2099, automatic leap
year calculation function  Built-in constant voltage circuit  Built-in 32 kHz crystal oscillator circuit  Package SOIC-8L, TSSOP-8L, and TDFN2x3-8L

The PT7C43190 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 V to V so that the RTC can be used for various power supplies from main supply to backup battery. 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 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.

Function Table

Item

Function
1 Oscillator Source

Crystal*
2 Time

Time display
12-hour 24-hour

Interrup Alarm interrupt pin output

Timer interrupt output

Programmable square wave output 4

Commu 3-wire bus 5
nication Burst mode IC test mode
6 Control Power-on detector Power supply voltage detector
7 Clock calibration 80 Free register access

PT7C43190    2 
1Hz,2Hz,4Hz 8Hz,16Hz 32kHz    
 
 Mobile game device  Digital still camera  Digital video camera  Electronic power meter  DVD recorder  TV, VCR  Mobile phone, PHS

Pin Configuration

PT7C43190
1 INT

VDD 8
2 XOUT

SIO 7
3 XIN

SCK 6
4 VSS

SOIC-8 TSSOP-8 DFN2*3
2015-09-0015

PT0274-7 10/16/15 1

Pin Description

Pin No.

Pin Name

Type
Ordering Information

Part No. PT7C43190LE

PT7C43190LEX PT7C43190WE PT7C43190WEX

PT7C43190ZEE

Note E = Pb-free and Green Adding X Suffix= Tape/Reel

Package Code L W ZE

Package Lead free and Green 8-pin TSSOP Lead free and Green 8-pin TSSOP Tape/Reel Lead free and Green 8-pin SOIC Lead free and Green 8-pin SOIC Tape/Reel Lead free and Green 8-pin TDFN2x3

Pericom Semiconductor Corporation  1-800-435-2336 

Pericom reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply the best possible product. Pericom does not assume any responsibility for use of any circuitry described other than the circuitry embodied in Pericom product. The company makes no representations that circuitry described herein is free from patent infringement or other rights, of Pericom.
2015-09-0015

PT0274-7 10/16/15 32

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived PT7C43190LEX Datasheet file may be downloaded here without warranties.

Datasheet ID: PT7C43190LEX 510118