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PCA9501

Description
8-bit I2C and SMBus I/O port with interrupt, 2-kbit EEPROM and 6 address pins
File Size180KB,36 Pages
ManufacturerNXP
Websitehttps://www.nxp.com
Download Datasheet View All

PCA9501 Overview

8-bit I2C and SMBus I/O port with interrupt, 2-kbit EEPROM and 6 address pins

PCA2125
SPI Real-time clock/calendar
Rev. 01 — 28 July 2008
Product data sheet
1. General description
The PCA2125 is a CMOS real-time clock/calendar optimized for low-power consumption
and an operating temperature up to 125
°C.
Data is transferred via a Serial Peripheral
Interface (SPI) bus with a maximum data rate of 6.0 Mbit/s. An alarm and timer function
are also available with the possibility to generate a wake-up signal on an interrupt pin.
AEC Q100 qualified for automotive applications.
2. Features
I
Provides year, month, day, weekday, hours, minutes and seconds based on
32.768 kHz quartz crystal
I
Resolution: seconds to years
I
Clock operating voltage: 1.3 V to 5.5 V
I
Low backup current: typical 0.55
µA
at V
DD
= 3.0 V and T
amb
= 25
°C
I
3-line SPI-bus with separate combinable data input and output
I
Serial interface (at V
DD
= 1.6 V to 5.5 V)
I
1 second or 1 minute interrupt output
I
Freely programmable timer with interrupt capability
I
Freely programmable alarm function with interrupt capability
I
Integrated oscillator capacitor
I
Internal power-on reset
I
Open-drain interrupt pin
3. Applications
I
Automotive time keeping application
I
Metering
4. Ordering information
Table 1.
Ordering information
Package
Name
PCA2125TS
TSSOP14
Description
plastic thin shrink small outline package; 14 leads;
body width 4.4 mm
Version
SOT402-1
Type number
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