參數(shù)資料
型號(hào)： PCA8565
廠商： NXP Semiconductors N.V.
英文描述： Real time clock/calender
中文描述： 實(shí)時(shí)時(shí)鐘/ calender
文件頁(yè)數(shù)： 13/26頁(yè)
文件大?。?/td> 581K
代理商： PCA8565
Philips Semiconductors
PCA8565
Real time clock/calender
Product data
Rev. 01 — 31 March 2003
13 of 26
9397 750 10695
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
clock pulse. A slave receiver which is addressed must generate an acknowledge after
the reception of each byte. Also a master receiver must generate an acknowledge
after the reception of each byte that has been clocked out of the slave transmitter.
The device that acknowledges must pull down the SDA line during the acknowledge
clock pulse, so that the SDA line is stable LOW during the HIGH period of the
acknowledge related clock pulse (set-up and hold times must be taken into
consideration). A master receiver must signal an end of data to the transmitter by not
generating an acknowledge on the last byte that has been clocked out of the slave. In
this event the transmitter must leave the data line HIGH to enable the master to
generate a stop condition.
9.5 I
2
C-bus protocol
9.5.1
Addressing
Before any data is transmitted on the I
2
C-bus, the device which should respond is
addressed first. The addressing is always carried out with the first byte transmitted
after the start procedure.
The PCA8565 acts as a slave receiver or slave transmitter. Therefore the clock signal
SCL is only an input signal, but the data signal SDA is a bidirectional line.
The PCA8565 slave address is shown in
Figure 10
.
Fig 9.
Acknowledgement on the I
2
C-bus.
MBC602
S
START
condition
9
8
2
1
clock pulse for
acknowledgement
not acknowledge
acknowledge
DATA OUTPUT
BY TRANSMITTER
DATA OUTPUT
BY RECEIVER
SCL FROM
MASTER
Fig 10. Slave address.
MCE189
1
0
1
0
0
0
1
R/W
group 1
group 2
相關(guān)PDF資料
PDF描述
PCA8581C 128 x 8-bit EEPROM with I2C-bus interface
PCA8581CP 128 x 8-bit EEPROM with I2C-bus interface
PCA8581CT 128 x 8-bit EEPROM with I2C-bus interface
PCA8581P 128 x 8-bit EEPROM with I2C-bus interface
PCA8581T 128 x 8-bit EEPROM with I2C-bus interface
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)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(shí)時(shí)時(shí)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(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
PCA8565BS/1-T 功能描述:實(shí)時(shí)時(shí)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(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
PCA8565TS 制造商:PHIL 功能描述:
PCA8565TS/1,118 功能描述:實(shí)時(shí)時(shí)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(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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