参数资料
| 型号： | ISL12030IBZ |
| 厂商： | Intersil |
| 文件页数： | 5/17页 |
| 文件大小： | 0K |
| 描述： | IC RTC/CALENDAR EEPROM 8-SOIC |
| 产品培训模块： | Solutions for Industrial Control Applications |
| 标准包装： | 980 |
| 类型： | 时钟/日历 |
| 特点： | 警报器，夏令时，SRAM |
| 存储容量： | 128B |
| 时间格式： | HH:MM:SS:hh（12/24 小时） |
| 数据格式： | YY-MM-DD-dd |
| 接口： | I²C，2 线串口 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
13
FN6617.2
May 5, 2011
Device Addressing
Following a start condition, the master must output a Slave
Address Byte. The 7 MSBs are the device identifier. These bits
are “1101111b” for the RTC registers and “1010111b” for the
User SRAM.
The last bit of the Slave Address Byte defines a read or write
operation to be performed. When this R/W bit is a “1”, then a
read operation is selected. A “0” selects a write operation (see
Figure 6).
After loading the entire Slave Address Byte from the SDA bus,
the ISL12030 compares the device identifier and device select
bits with “1101111b” or “1010111b”. Upon a correct compare,
the device outputs an acknowledge on the SDA line.
Following the Slave Byte is a one byte word address. The word
address is either supplied by the master device or obtained
from an internal counter. On power-up the internal address
counter is set to address 00h, so a current address read starts
at address 00h. When required, as part of a random read, the
master must supply the 1 Word Address Byte as shown in
Figure 6.
In a random read operation, the slave byte in the “dummy write”
portion must match the slave byte in the “read” section. For a
random read of the Control/Status Registers, the slave byte
must be “1101111x” in both places.
FIGURE 3. VALID DATA CHANGES, START AND STOP CONDITIONS
FIGURE 4. ACKNOWLEDGE RESPONSE FROM RECEIVER
FIGURE 5. BYTE WRITE SEQUENCE (SLAVE ADDRESS FOR CSR SHOWN)
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
S
T
A
R
T
S
T
O
P
IDENTIFICATION
BYTE
DATA
BYTE
A
C
K
SIGNALS FROM
THE MASTER
SIGNALS FROM
THE ISL12030
A
C
K
10
0
11
A
C
K
WRITE
SIGNAL AT SDA
00 00
11 1
ADDRESS
BYTE
ISL12030
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| ISL12030IBZ-T | 功能描述:实时时钟 REAL TIME CLK W/ EEPROM 8LD RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| ISL12032 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Low Power RTC with Battery Backed SRAM and 50/60 Cycle AC Input and Xtal Back-up |
| ISL12032IVZ | 功能描述:实时时钟 REAL TIME CLK W/ EEPROM 14LD RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| ISL12032IVZ-T | 功能描述:实时时钟 REAL TIME CLK W/ EEPROM 14LD RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| ISL12057 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Low Cost and Low Power I2C RTC Real Time Clock/Calendar |
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