PCA9509A datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > PCA9509A

Preview

PCA9509A: DescriptionReal time clock/calender; File Size180KB，36 Pages; ManufacturerNXP; Websitehttps://www.nxp.com

Download Datasheet View All

PCA9509A Overview

Real time clock/calender

Preview

Download Datasheet

View All

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

Provides year, month, day, weekday, hours, minutes and seconds based on

32.768 kHz quartz crystal

Resolution: seconds to years

Clock operating voltage: 1.3 V to 5.5 V

Low backup current: typical 0.55

µA

at V

= 3.0 V and T

amb

= 25

°C

3-line SPI-bus with separate combinable data input and output

Serial interface (at V

= 1.6 V to 5.5 V)

1 second or 1 minute interrupt output

Freely programmable timer with interrupt capability

Freely programmable alarm function with interrupt capability

Integrated oscillator capacitor

Internal power-on reset

Open-drain interrupt pin

3. Applications

Automotive time keeping application

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

Recommended Resources

transistor audio signal amplifier

One of the anti-theft alarm circuits with warning wires

Timing power supply socket circuit controlled by dual electronic meters

555 new digital thermometer circuit diagram

Long time adjustable timer circuit

Shuanghua ZNB-P starting single-phase motor circuit

NTSC and PAL camera debugging: I have been debugging cameras recently, both NTSC and PAL. The goal is to clearly display the information collected by the camera on the LCD. The original size of the camera signal is 720*575 and 720*...; 雪枫21 Automotive Electronics

Newbie needs help regarding STM32 DA! ! ! !: I want to implement software-triggered DA output. But no matter how I change the input value, the measured output voltage does not change much, and the output cannot be 0v. Please help me... Thanks......; 光头 MCU

Help! Urgent! ZStack goes into an infinite loop after serial port triggering! The indicator light on the development board keeps flashing! Urgent!: I just learned zigbee and don’t know how to use zstack message passing, so I blocked the message osal_msg_send in MT_UART.c, and then directly passed the serial port data received in the message struc...; QHYESTY RF/Wirelessly

Please help me write a C program with pictures: The one in the picture is 18b20, but the real thing is not the real thing. It is a temperature and humidity integrated sensor. Please help me urgently! ! !~~~...; 摩卡 51mcu

Why does a signal with very little noise introduce high-frequency noise after passing through a first-order active low-pass filter?: Why does a signal with very little noise introduce high-frequency noise after passing through a first-order active low-pass filter? (The signal is input from the left, amplified, and then filtered. Th...; caijianfa55 Analog electronics

Verilog help! !: When I was learning Verilog, I came across an example that I didn't understand. Please help me: The example is as follows: module f1 ( y1, y2, clk, rst); output y1, y2; input clk, rst; reg y1, y2; alw...; ggch Embedded System

Shortcut: 00 01 02 03 04 05 06 07 08 09 0A 0C 0F 0J 0L 0M 0R 0S 0T 0Z 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 1H 1K 1M 1N 1P 1S 1T 1V 1X 1Z 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 2G 2K 2M 2N 2P 2Q 2R 2S 2T 2W 2Z 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 3G 3H 3J 3K 3L 3M 3N 3P 3R 3S 3T 3V 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4M 4N 4P 4S 4T 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5E 5G 5H 5K 5M 5N 5P 5S 5T 5V 60 61 62 63 64 65 66 67 68 69 6A 6C 6E 6F 6M 6N 6P 6R 6S 6T 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7M 7N 7P 7Q 7V 7W 7X 80 81 82 83 84 85 86 87 88 89 8A 8D 8E 8L 8N 8P 8S 8T 8W 8Y 8Z 90 91 92 93 94 95 96 97 98 99 9A 9B 9C 9D 9F 9G 9H 9L 9S 9T 9W

Popular Components