參數(shù)資料
型號(hào)： ISL12024IBZ-T
廠商： Intersil
文件頁(yè)數(shù)： 11/25頁(yè)
文件大?。?/td> 0K
描述： IC RTC/CALENDAR EEPROM 8-SOIC
標(biāo)準(zhǔn)包裝： 1
類(lèi)型： 時(shí)鐘/日歷
特點(diǎn)： 警報(bào)器，閏年，唯一 ID
時(shí)間格式： HH:MM:SS（12/24 小時(shí)）
數(shù)據(jù)格式： YY-MM-DD-dd
接口： I²C，2 線串口
電源電壓： 2.7 V ~ 5.5 V
電壓 - 電源，電池： 1.8 V ~ 5.5 V
工作溫度： -40°C ~ 85°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 8-SOIC
包裝： 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁(yè)面： 1245 (CN2011-ZH PDF)
其它名稱(chēng)： ISL12024IBZ-TDKR
19
FN6370.3
August 18, 2008
It should be noted that the ninth clock cycle of the read
operation is not a “don’t care.” To terminate a read operation,
the master must either issue a stop condition during the
ninth cycle or hold SDA HIGH during the ninth clock cycle
and then issue a stop condition.
Random Read
Random read operations allow the master to access any
location in the ISL12024. Prior to issuing the Slave Address
Byte with the R/W bit set to zero, the master must first
perform a “dummy” write operation.
The master issues the start condition and the slave address
byte, receives an acknowledge, then issues the word
address bytes. After acknowledging receipt of each word
address byte, the master immediately issues another start
condition and the slave address byte with the R/W bit set to
one. This is followed by an acknowledge from the device and
then by the 8-bit data word. The master terminates the read
operation by not responding with an acknowledge and then
issuing a stop condition. See Figure 21 for the address,
acknowledge and data transfer sequence.
In a similar operation called “Set Current Address,” the
device sets the address if a stop is issued instead of the
second start shown in Figure 21. The ISL12024 then goes
into Standby Power Mode after the stop and all bus activity
will be ignored until a start is detected. This operation loads
the new address into the address counter. The next Current
Address Read operation will read from the newly loaded
address. This operation could be useful if the master knows
the next address it needs to read, but is not ready for the
data.
Sequential Read
Sequential reads can be initiated as either a current address
read or random address read. The first data byte is
transmitted as with the other modes; however, the master
now responds with an acknowledge, indicating it requires
additional data. The device continues to output data for each
acknowledge received. The master terminates the read
operation by not responding with an acknowledge and then
issuing a stop condition.
The data output is sequential, with the data from address n
followed by the data from address n + 1. The address
counter for read operations increments through all page and
column addresses, allowing the entire memory contents to
be serially read during one operation. At the end of the
address space the counter “rolls over” to the start of the
address space and the ISL12024 continues to output data
for each acknowledge received. See Figure 22 for the
acknowledge and data transfer sequence.
0
SLAVE
ADDRESS
WORD
ADDRESS 1
A
C
K
A
C
K
S
T
A
R
T
S
T
O
P
SLAVE
ADDRESS
DATA
A
C
K
1
S
T
A
R
T
SDA BUS
SIGNALS FROM
THE SLAVE
SIGNALS FROM
THE MASTER
A
C
K
WORD
ADDRESS 0
1
11
00 0 0 0 0 0
FIGURE 21. RANDOM ADDRESS READ SEQUENCE
DATA
(2)
S
T
O
P
SLAVE
ADDRESS
DATA
(n)
A
C
K
A
C
K
SDA BUS
SIGNALS FROM
THE SLAVE
SIGNALS FROM
THE MASTER
1
DATA
(n-1)
A
C
K
A
C
K
(n is any integer greater than 1)
DATA
(1)
FIGURE 22. SEQUENTIAL READ SEQUENCE
ISL12024
相關(guān)PDF資料
PDF描述
VE-B3W-MY-F3 CONVERTER MOD DC/DC 5.5V 50W
ISL23445TFRZ-T7A IC DGTL POT QUAD 100K 20QFN
MS27505E19B35PA CONN RCPT 66POS BOX MNT W/PINS
ISL22414TFU10Z IC POT DGTL 256TP LN LP 10-MSOP
VE-B22-MW-B1 CONVERTER MOD DC/DC 15V 100W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISL12024IRTCZ 功能描述:實(shí)時(shí)時(shí)鐘 RTC OUTPUT PROGRAM TO 32KHZ W/EEPROM 8 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
ISL12024IRTCZ-T 功能描述:實(shí)時(shí)時(shí)鐘 RTC OUTPUT PROGRAM TO 32KHZ W/EEPROM 8 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
ISL12024IVZ 功能描述:實(shí)時(shí)時(shí)鐘 REAL TIME CLK/CLNDR W/EEPROM IN 8LD 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
ISL12024IVZ-T 功能描述:實(shí)時(shí)時(shí)鐘 REAL TIME CLK/CLNDR W/EEPROM IN 8LD 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
ISL12025 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:Real-Time Clock/Calendar with EEPROM
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(xiě)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

*
*
*