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PCF8563T 参数 Datasheet PDF下载

PCF8563T图片预览
型号: PCF8563T
PDF下载: 下载PDF文件 查看货源
内容描述: 实时时钟/日历 [Real-time clock/calendar]
分类和应用: 计时器或实时时钟微控制器和处理器外围集成电路光电二极管
文件页数/大小: 30 页 / 636 K
品牌: PHILIPS [ NXP SEMICONDUCTORS ]
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PCF8563
Real-time clock/calendar
16 April 1999
Product specification
1. General description
The PCF8563 is a CMOS real-time clock/calendar optimized for low power
consumption. A programmable clock output, interrupt output and voltage-low detector
are also provided. All address and data are transferred serially via a two-line
bidirectional I
2
C-bus. Maximum bus speed is 400 kbits/s. The built-in word address
register is incremented automatically after each written or read data byte.
2. Features
s
Provides year, month, day, weekday, hours, minutes and seconds based on
32.768 kHz quartz crystal
s
Century flag
s
Wide operating supply voltage range: 1.0 to 5.5 V
s
Low back-up current; typical 0.25
µA
at V
DD
= 3.0 V and T
amb
= 25
°C
s
400 kHz two-wire I
2
C-bus interface (at V
DD
= 1.8 to 5.5 V)
s
Programmable clock output for peripheral devices: 32.768 kHz, 1024 Hz,
32 Hz and 1 Hz
s
Alarm and timer functions
s
Voltage-low detector
s
Integrated oscillator capacitor
s
Internal power-on reset
s
I
2
C-bus slave address: read A3H; write A2H
s
Open drain interrupt pin.
3. Applications
s
s
s
s
Mobile telephones
Portable instruments
Fax machines
Battery powered products.