- 您现在的位置：买卖IC网 > PDF目录45332 > MKI41T56S00TR (STMICROELECTRONICS) 0 TIMER(S), REAL TIME CLOCK, PDSO8 PDF资料下载
参数资料
| 型号： | MKI41T56S00TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封装： | 0.150 INCH, PLASTIC, SOP-8 |
| 文件页数： | 3/16页 |
| 文件大小： | 105K |
| 代理商： | MKI41T56S00TR |
11/16
MK41T56, MKI41T56
dicates the degree and direction of oscillator fre-
quency shift at the test temperature.
For example, a reading of 512.01024Hz would in-
dicate a +20ppm oscillator frequency error, requir-
ing a –10(XX001010) to be loaded into the
Calibration Byte for correction. Note that setting or
changing the Calibration Byte does not affect the
Frequency test output frequency.
OUTPUT DRIVER PIN
When the FT bit is not set, the FT/OUT pin be-
comes an output driver that reflects the contents of
D7 of the control register. In other words, when D6
of location 7 is a zero and D7 of location 7 is a zero
and then the FT/OUT pin will be driven low.
Note: The FT/OUT pin is open drain which re-
quires an external pull-up resistor.
Two methods are available for ascertaining how
much calibration a given MK41T56 may require.
The first involves simply setting the clock, letting it
run for a month and comparing it to a known accu-
rate reference (like WWV broadcasts). While that
may seem crude, it allows the designer to give the
end user the ability to calibrate his clock as his en-
vironment may require, even after the final product
is packaged in a non-user serviceable enclosure.
All the designer has to do is provide a simple utility
that accessed the Calibration byte.
The second approach is better suited to a manu-
facturing environment, and involves the use of
some test equipment. When the Frequency Test
(FT) bit, the seventh-most significant bit in the
Control Register, is set to a '1', and the oscillator is
running at 32,768Hz, the FT/OUT pin of the device
will toggle at 512Hz. Any deviation from 512Hz in-
Figure 14. Clock Calibration
AI00594B
NORMAL
POSITIVE
CALIBRATION
NEGATIVE
CALIBRATION
相关PDF资料 |
PDF描述 |
|---|---|
| ML2035IP | 1-BIT, DSP-NUM CONTROLLED OSCILLATOR, PDIP8 |
| ML54053 | IDE COMPATIBLE, FLASH MEMORY DRIVE CONTROLLER, PQFP120 |
| ML610Q346J-NNNTB | 8-BIT, FLASH, 4.2 MHz, RISC MICROCONTROLLER, PQFP64 |
| ML610Q409-NNNTBZ03A | RISC MICROCONTROLLER, PQFP100 |
| ML610Q408-NNNTBZ03A | RISC MICROCONTROLLER, PQFP100 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MKI50-06A7 | 功能描述:IGBT 模块 50 Amps 600V RoHS:否 制造商:Infineon Technologies 产品:IGBT Silicon Modules 配置:Dual 集电极—发射极最大电压 VCEO:600 V 集电极—射极饱和电压:1.95 V 在25 C的连续集电极电流:230 A 栅极—射极漏泄电流:400 nA 功率耗散:445 W 最大工作温度:+ 125 C 封装 / 箱体:34MM 封装: |
| MKI50-06A7T | 功能描述:分立半导体模块 50 Amps 600V RoHS:否 制造商:Infineon Technologies 产品:Thyristor Power Modules 类型:Phase Controls 安装风格:Screw 封装 / 箱体:DT61 封装: |
| MKI50-12E7 | 功能描述:分立半导体模块 IGBT (NPT3) 1200V 50A RoHS:否 制造商:Infineon Technologies 产品:Thyristor Power Modules 类型:Phase Controls 安装风格:Screw 封装 / 箱体:DT61 封装: |
| MKI50-12F7 | 功能描述:IGBT 模块 50 Amps 1200V RoHS:否 制造商:Infineon Technologies 产品:IGBT Silicon Modules 配置:Dual 集电极—发射极最大电压 VCEO:600 V 集电极—射极饱和电压:1.95 V 在25 C的连续集电极电流:230 A 栅极—射极漏泄电流:400 nA 功率耗散:445 W 最大工作温度:+ 125 C 封装 / 箱体:34MM 封装: |
| MKI65-06A7T | 功能描述:分立半导体模块 65 Amps 600V RoHS:否 制造商:Infineon Technologies 产品:Thyristor Power Modules 类型:Phase Controls 安装风格:Screw 封装 / 箱体:DT61 封装: |
发布紧急采购，3分钟左右您将得到回复。