參數(shù)資料
型號(hào)： PCF8563
廠商： NXP Semiconductors N.V.
英文描述： Real-time clock/calendar(實(shí)時(shí)時(shí)鐘/日歷)
中文描述： 實(shí)時(shí)時(shí)鐘/日歷（實(shí)時(shí)時(shí)鐘/日歷）
文件頁(yè)數(shù)： 10/30頁(yè)
文件大小： 676K
代理商： PCF8563
Philips Semiconductors
PCF8563
Real-time clock/calendar
Product specification
16 April 1999
10 of 30
9397 750 04855
Philips Electronics N.V. 1999. All rights reserved.
8.6.5
Alarm registers
When one or more of the alarm registers are loaded with a valid minute, hour, day or
weekday and its corresponding AE (Alarm Enable) bit is a logic 0, then that
information will be compared with the current minute, hour, day and weekday. When
all enabled comparisons first match, the bit AF (Alarm Flag) is set.
AF will remain set until cleared by software. Once AF has been cleared it will only be
set again when the time increments to match the alarm condition once more. Alarm
registers which have their AE bit set at logic 1 will be ignored.
Table 19: Minute alarm register bits description (address 09H)
Bit
Symbol
Description
7
AE
AE = 0; minute alarm is enabled. AE = 1; minute alarm is disabled.
6 to 0 <minute alarm>
These bits represents the minute alarm information coded in BCD
format; value = 00 to 59.
Table 20: Hour alarm register bits description (address 0AH)
Bit
Symbol
Description
7
AE
AE = 0; hour alarm is enabled. AE = 1; hour alarm is disabled.
6 to 0 <hour alarm>
These bits represents the hour alarm information coded in BCD
format; value = 00 to 23.
Table 21: Day alarm register bits description (address 0BH)
Bit
Symbol
Description
7
AE
AE = 0; day alarm is enabled. AE = 1; day alarm is disabled.
6 to 0 <day alarm>
These bits represents the day alarm information coded in BCD
format; value = 01 to 31.
Table 22: Weekday alarm register bits description (address 0CH)
Bit
Symbol
Description
7
AE
AE = 0; weekday alarm is enabled.
AE = 1; weekday alarm is disabled.
6 to 0 <weekday alarm>
These bits represents the weekday alarm information
value 0 to 6.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCF8563_11 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Real-time clock/calendar
PCF8563BS 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Real-time clock/calendar
PCF8563BS/4 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Real-time clock/calendar
PCF8563BS/4,118 功能描述:實(shí)時(shí)時(shí)鐘 ULTRA LOW POWER RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲(chǔ)容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
PCF8563BS/4-T 功能描述:實(shí)時(shí)時(shí)鐘 ULTRA LOW POWER CLOCK CALENDAR RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲(chǔ)容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
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