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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： | 14/26頁 |
| 文件大小： | 581K |
| 代理商： | PCA8565 |
Philips Semiconductors
PCA8565
Real time clock/calender
Product data
Rev. 01 — 31 March 2003
14 of 26
9397 750 10695
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
9.5.2
Clock/calendar read/write cycles
The I
2
C-bus configuration for the different PCA8565 read and write cycles is shown in
Figure 11
,
Figure 12
and
Figure 13
. The word address is a 4-bit value that defines
which register is to be accessed next. The upper four bits of the word address are not
used.
Fig 11. Master transmits to slave receiver (write mode).
S
0 A
SLAVE ADDRESS
WORD ADDRESS
A
A
DATA
P
acknowledgement
from slave
acknowledgement
from slave
acknowledgement
from slave
R/W
auto increment
memory word address
MBD822
n bytes
Fig 12. Master reads after setting word address (write word address; read data).
S
0 A
SLAVE ADDRESS
WORD ADDRESS
A
A
SLAVE ADDRESS
acknowledgement
from slave
acknowledgement
from slave
acknowledgement
from slave
R/W
acknowledgement
from master
A
DATA
auto increment
memory word address
MCE172
P
no acknowledgement
from master
1
DATA
auto increment
memory word address
last byte
R/W
S
1
n bytes
at this moment master transmitter
becomes master receiver and
PCA8565 slave receiver
becomes slave transmitter
Fig 13. Master reads slave immediately after first byte (read mode).
handbook, full pagewidth
S
1 A
SLAVE ADDRESS
DATA
A
1
DATA
acknowledgement
from slave
acknowledgement
from master
no acknowledgement
from master
R/W
auto increment
word address
MGL665
auto increment
word address
n bytes
last byte
P
相關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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