参数资料
| 型号： | ISL12058IUZ |
| 厂商： | Intersil |
| 文件页数： | 4/19页 |
| 文件大小： | 0K |
| 描述： | IC RTC/CALENDAR I2C-BUS 8-MSOP |
| 标准包装： | 50 |
| 类型： | 时钟/日历 |
| 特点： | 警报器，闰年 |
| 时间格式： | HH:MM:SS（12/24 小时） |
| 数据格式： | YY-MM-DD-dd |
| 接口： | I²C，2 线串口 |
| 电源电压： | 1.8 V ~ 3.6 V |
| 电压 - 电源，电池： | 1.4 V ~ 1.8 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 管件 |
12
FN6756.0
June 15, 2009
B. Also the ALME bit must be set as follows:
xx indicate other control bits and these bit can be set to 0 or
1.
After these registers are set, the Alarm1 interrupt will be
generated when the RTC advances to exactly 11:30am on
January 1 (after seconds changes from 59 to 00) by setting
the A1F bit in the status register to “1” and also bringing the
IRQ/FOUT output low.
Alarm2 Registers
Addresses [Address 12h to 14h]
The Alarm2 register bytes are set up identical to the RTC
register bytes except that the MSB of each byte functions as
an enable bit (enable = “1”). These enable bits specify which
alarm registers (minutes, hour, and date/day) are used to
make the comparison. Note that there are no alarm bytes for
second, month and year. When all the enable bits are set to
“0” with ALM2E set to “1”, the Alarm2 will triggered once a
minute when second hits “00”.
The Alarm2 function works as a comparison between the
Alarm2 registers and the RTC registers. As the RTC
advances, the Alarm2 will be triggered once a match occurs
between the Alarm2 registers and the RTC registers. Any
one Alarm2 register, multiple registers, or all registers can be
enabled for a match.
To clear an Alarm2, the A2F status bit can be set to “0” with a
write or use the ARST bit auto reset function.
Following is example of Alarm2 Interrupt.
Example – A single alarm will occur on every Monday at
20:00 military time (Monday is when DW = 1).
A. Set Alarm registers as follows:
After these registers are set, an alarm will be generated when
the RTC advances to exactly 20:00 on Monday (after minutes
changes from 59 to 00) by setting the A2F bit in the status
register to “1”.
I2C Serial Interface
The ISL12058 supports a bi-directional bus oriented
protocol. The protocol defines any device that sends data
onto the bus as a transmitter and the receiving device as the
receiver. The device controlling the transfer is the master
and the device being controlled is the slave. The master
always initiates data transfers and provides the clock for
both transmit and receive operations. Therefore, the
ISL12058 operates as a slave device in all applications.
All communication over the I2C interface is conducted by
sending the MSB of each byte of data first.
ALARM1
REGISTER
BIT
DESCRIPTION
76
543210
HEX
A1SC
00
000000
00h
Seconds disabled
A1MN
10
110000
B0h Minutes set to 30,
enabled
A1HR
10
010001
91h
Hours set to 11,
enabled
A1DT
10
000001
81h
Date set to 1,
enabled
A1MO
10
000001
81h
Month set to 1,
enabled
A1DW
00
000000
00h
Day of week
disabled
CONTROL
REGISTER
BIT
DESCRIPTION
7654
3210
HEX
INT
0
1
x
1
0
1
45h
Enable Alarm1,
and Alarm1
Interrupt to
IRQ/FOUT
TABLE 7. ALARM2 INTERRUPT WITH ENABLE BITS
SELECTION
A2DW/DT A2M2
A2M3
A2M4
ALARM2 Interrupt
0
Every Minute (Second=00)
0
1
0
Match Minute
0
1
0
Match Hour
0
1
Match Date
1
001
Match Day
0
1
0
Match Minute and Hour
0
1
0
1
Match Minute and Date
0
1
Match Hour and Date
0
1
Match Minute, Hour, and Date
1
0
Match Minute and Hour
1
0
1
Match Minute and Day
1
0
1
Match Hour and Day
1
Match Minute, Hour, and Day
ALARM2
REGISTER
BIT
DESCRIPTION
7
6543210
HEX
A2MN
0
0000000
00h
Minutes disabled
A2HR
1
1100000
E0h
Hours set to 20,
enabled
A2DW/DT
1
1000001
C1h Day set to Monday,
enabled
ISL12058
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| ISL12058IUZ-T | 功能描述:实时时钟 REAL TIME CLK W/ ALARM & TIMR FUNCTNS 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 |
| ISL12059 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Low Cost and Low Power I2C Bus? Real Time Clock/Calendar |
| ISL12059IBZ | 功能描述:实时时钟 REAL TIME CLK W/ ALARM & TIMR FUNCTNS 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 |
| ISL12059IBZ-T | 功能描述:实时时钟 REAL TIME CLK W/ ALARM & TIMR FUNCTNS 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 |
| ISL1208 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Low Power RTC with Battery Backed SRAM |
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