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參數(shù)資料
| 型號： | PCF8573 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | XO, clock |
| 英文描述： | Clock/calendar with Power Fail Detector |
| 中文描述： | REAL TIME CLOCK |
| 文件頁數(shù)： | 3/24頁 |
| 文件大?。?/td> | 198K |
| 代理商： | PCF8573 |
1997 Mar 28
3
Philips Semiconductors
Product specification
Clock/calendar with Power Fail Detector
PCF8573
1
FEATURES
Serial input/output I
2
C-bus interface for minutes, hours,
days and months
Additional pulse outputs for seconds and minutes
Alarm register for presetting a time for alarm or remote
switching functions
On-chip power fail detector
Separate ground pin for the clock allows easy
implementation of battery back-up during supply
interruption
Crystal oscillator control (32.768 kHz)
Low power consumption.
2
GENERAL DESCRIPTION
The PCF8573 is a low threshold, CMOS circuit that
functions as a real time clock/calendar. Addresses and
data are transferred serially via the two-line bidirectional
I
2
C-bus.
The IC incorporates an addressable time counter and an
addressable alarm register for minutes, hours, days and
months. Three special control/status flags, COMP, POWF
and NODA, are also available. Back-up for the clock during
supply interruptions is provided by a 1.2 V nickel cadmium
battery. The time base is generated from a 32.768 kHz
crystal-controlled oscillator.
3
QUICK REFERENCE DATA
4
ORDERING INFORMATION
SYMBOL
V
DD
V
SS1
V
DD
V
SS2
f
osc
PARAMETER
MIN.
TYP.
MAX.
UNIT
supply voltage, clock (pin 16 to pin 15)
supply voltage, I
2
C-bus (pin 16 to pin 8)
crystal oscillator frequency
1.1
2.5
32.768
6.0
6.0
V
V
kHz
TYPE NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
PCF8573P
PCF8573T
DIP16
SO16
plastic dual in-line package; 16 leads (300 mil); long body
plastic small outline package; 16 leads; body width 7.5 mm
SOT38-1
SOT162-1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCF8573P | Clock/calendar with Power Fail Detector |
| PCF8573T | Clock/calendar with Power Fail Detector |
| PCF8574 | Remote 8-bit I/O expander for I2C-bus |
| PCF8578 | LCD row/column driver for dot matrix graphic displays |
| PCF8578H | LCD row/column driver for dot matrix graphic displays |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCF8573P | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Clock/calendar with Power Fail Detector |
| PCF8573PN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Real-Time Clock |
| PCF8573T | 制造商: 功能描述: 制造商:undefined 功能描述: 制造商:NXP Semiconductors 功能描述:Real Time Clock, 16 Pin, Plastic, SOP |
| PCF8573TD | 制造商:NXP Semiconductors 功能描述:Real Time Clock, 16 Pin, Plastic, SOP |
| PCF8573TD-T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Real-Time Clock |
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