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參數(shù)資料
| 型號(hào)： | ISL12058IUZ-T |
| 廠商： | Intersil |
| 文件頁(yè)數(shù)： | 5/19頁(yè) |
| 文件大小： | 0K |
| 描述： | IC RTC/CALENDAR I2C-BUS 8-MSOP |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 時(shí)鐘/日歷 |
| 特點(diǎn)： | 警報(bào)器，閏年 |
| 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： | 1.8 V ~ 3.6 V |
| 電壓 - 電源，電池： | 1.4 V ~ 1.8 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-MSOP |
| 包裝： | 帶卷 (TR) |
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13
FN6756.0
June 15, 2009
Protocol Conventions
Data states on the SDA line can change only during SCL LOW
periods. SDA state changes during SCL HIGH are reserved for
indicating START and STOP conditions (see Figure 7). On
power-up of the ISL12058, the SDA pin is in the input mode.
All I2C interface operations must begin with a START condition,
which is a HIGH to LOW transition of SDA while SCL is HIGH.
The ISL12058 continuously monitors the SDA and SCL lines
for the START condition and does not respond to any
command until this condition is met (see Figure 7). A START
condition is ignored during the power-up sequence.
All I2C interface operations must be terminated by a STOP
condition, which is a LOW to HIGH transition of SDA while SCL
is HIGH (see Figure 7). A STOP condition at the end of a read
operation or at the end of a write operation to memory only
places the device in its standby mode.
An acknowledge (ACK) is a software convention used to
indicate a successful data transfer. The transmitting device,
either master or slave, releases the SDA bus after transmitting
8 bits. During the ninth clock cycle, the receiver pulls the SDA
line LOW to acknowledge the reception of the 8 bits of data
(see Figure 8).
The ISL12058 responds with an ACK after recognition of a
START condition followed by a valid Identification Byte, and
once again after successful receipt of an Address Byte. The
ISL12058 also responds with an ACK after receiving a Data
Byte of a write operation. The master must respond with an
ACK after receiving a Data Byte of a read operation.
FIGURE 7. VALID DATA CHANGES, START, AND STOP CONDITIONS
FIGURE 8. ACKNOWLEDGE RESPONSE FROM RECEIVER
SDA
SCL
START
DATA
STOP
STABLE
CHANGE
DATA
STABLE
SDA OUTPUT FROM
TRANSMITTER
SDA OUTPUT FROM
RECEIVER
8
1
9
START
ACK
SCL FROM
MASTER
HIGH IMPEDANCE
ISL12058
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL12059 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Low Cost and Low Power I2C Bus? Real Time Clock/Calendar |
| ISL12059IBZ | 功能描述:實(shí)時(shí)時(shí)鐘 REAL TIME CLK W/ ALARM & TIMR FUNCTNS 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 |
| ISL12059IBZ-T | 功能描述:實(shí)時(shí)時(shí)鐘 REAL TIME CLK W/ ALARM & TIMR FUNCTNS 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 |
| ISL1208 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Low Power RTC with Battery Backed SRAM |
| ISL1208_06 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Low Power RTC with Battery Backed SRAM |
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