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參數資料
| 型號： | PCA8565 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Real time clock/calender |
| 中文描述： | 實時時鐘/ calender |
| 文件頁數： | 8/26頁 |
| 文件大小： | 581K |
| 代理商： | PCA8565 |
Philips Semiconductors
PCA8565
Real time clock/calender
Product data
Rev. 01 — 31 March 2003
8 of 26
9397 750 10695
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
[1]
These bits may be re-assigned by the user.
8.6.4
Alarm registers
When one or more of these registers are loaded with a valid minute, hour, day or
weekday and its corresponding bit Alarm Enable (AE) is logic 0, then that information
will be compared with the current minute, hour, day and weekday. When all enabled
comparisons first match, the Alarm Flag (AF) 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
bit AE at logic 1 will be ignored.
Thursday
Friday
Saturday
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
1
1
1
0
0
1
0
1
0
Table 14:
Day
Weekday assignments
…continued
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Table 15:
Bit
7
Months/century (address 07H) bits description
Symbol
Value
century
[1]
0
1
month
01 to 12
Description
this bit is toggled when the years register overflows from 99 to 00
indicates the century is 20xx
indicates the century is 19xx
this register holds the current month coded in BCD format, see
Table 16
4 to 0
Table 16:
Month
January
February
March
April
May
June
July
August
September
October
November
December
Month assignments
Bit 7
C
C
C
C
C
C
C
C
C
C
C
C
Bit 6
x
x
x
x
x
x
x
x
x
x
x
x
Bit 5
x
x
x
x
x
x
x
x
x
x
x
x
Bit 4
0
0
0
0
0
0
0
0
0
1
1
1
Bit 3
0
0
0
0
0
0
0
1
1
0
0
0
Bit 2
0
0
0
1
1
1
1
0
0
0
0
0
Bit 1
0
1
1
0
0
1
1
0
0
0
0
1
Bit 0
1
0
1
0
1
0
1
0
1
0
1
0
Table 17:
Bit
7 to 0
Years (address 08H) bits description
Symbol
Value
years
00 to 99
Description
this register holds the current year coded in BCD format
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PDF描述 |
|---|---|
| PCA8581C | 128 x 8-bit EEPROM with I2C-bus interface |
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| PCA8581CT | 128 x 8-bit EEPROM with I2C-bus interface |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| PCA8565BS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Real time clock/calendar |
| PCA8565BS/1,118 | 功能描述:實時時鐘 AUTOMOTIVE CLOCK/CAL 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 時間格式:HH:MM:SS RTC 存儲容量: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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| PCA8565BS/1-T | 功能描述:實時時鐘 AUTOMOTIVE CLOCK/CAL 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 時間格式:HH:MM:SS RTC 存儲容量: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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| PCA8565TS | 制造商:PHIL 功能描述: |
| PCA8565TS/1,118 | 功能描述:實時時鐘 CMOS RTC/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 時間格式:HH:MM:SS RTC 存儲容量: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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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