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)： 7/30頁(yè)
文件大?。?/td> 676K
代理商： PCF8563
Philips Semiconductors
PCF8563
Real-time clock/calendar
Product specification
16 April 1999
7 of 30
9397 750 04855
Philips Electronics N.V. 1999. All rights reserved.
8.6.2
Control/Status 2 register
[1]
[2]
TF and INT become active simultaneously.
n = loaded countdown timer value. Timer stopped when n = 0.
Table 7:
Bit
7 to 5
4
Description of Control/Status 2 register bits description (address 01H)
Symbol Description
0
By default set to logic 0.
TI/TP
TI/TP = 0: INT is active when TF is active (subject to the status of TIE).
TI/TP = 1: INT pulses active according to
Table 8
(subject to the status
of TIE). Note that if AF and AIE are active then INT will be permanently
active.
AF
When an alarm occurs, AF is set to logic 1. Similarly, at the end of a
timer countdown, TF is set to logic 1. These bits maintain their value
until overwritten by software. If both timer and alarm interrupts are
required in the application, the source of the interrupt can be
determined by reading these bits. To prevent one flag being
overwritten while clearing another, a logic AND is performed during a
write access. See
Table 9
for the value descriptions of bits AF and TF.
AIE
Bits AIE and TIE activate or deactivate the generation of an interrupt
when AF or TF is asserted, respectively. The interrupt is the logical OR
of these two conditions when both AIE and TIE are set.
AIE = 0: alarm interrupt disabled; AIE = 1: alarm interrupt enabled.
TIE = 0: timer interrupt disabled; TIE = 1: timer interrupt enabled.
3
2
TF
1
0
TIE
Table 8:
Source clock (Hz)
INT operation (bit TI/TP = 1)
INT
[1]
period (s)
n
[2]
= 1
n > 1
4096
64
1
1
8192
1
128
1
64
1
64
1
4096
1
64
1
64
1
64
1
60
Table 9:
R/W
Value descriptions for bits AF and TF
Bit: AF
Value Description
0
alarm flag inactive
1
alarm flag active
0
alarm flag is cleared
1
alarm flag remains unchanged
Bit: TF
Value Description
0
timer flag inactive
1
timer flag active
0
timer flag is cleared
1
timer flag remains unchanged
Read
Write
相關(guān)PDF資料
PDF描述
PCF8566 Universal LCD driver for low multiplex rates
PCF8573 Clock/calendar with Power Fail Detector
PCF8573P Clock/calendar with Power Fail Detector
PCF8573T Clock/calendar with Power Fail Detector
PCF8574 Remote 8-bit I/O expander for I2C-bus
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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*